//
// Default constructor
//
+
fIshunt = 0;
fGasMix = 0;
- fSensSelect = 0;
- fSensPlane = 0;
- fSensChamber = 0;
- fSensSector = 0;
+
+ // The chamber dimensions
+ for (Int_t iplan = 0; iplan < kNplan; iplan++) {
+ fClengthI[iplan] = 0.;
+ fClengthM[iplan] = 0.;
+ fClengthO[iplan] = 0.;
+ }
+
}
//_____________________________________________________________________________
// Standard constructor for the TRD
//
- //
+
+ // Check that FRAME is there otherwise we have no place where to put the TRD
+ AliModule* FRAME = gAlice->GetModule("FRAME");
+ if (!FRAME) {
+ Error("AliTRD","TRD needs FRAME to be present\n");
+ exit(1);
+ }
+
// Allocate the hit array
-
fHits = new TClonesArray("AliTRDhit", 405);
- fIshunt = 0;
- fGasMix = 0;
- fSensSelect = 0;
- fSensPlane = 0;
- fSensChamber = 0;
- fSensSector = 0;
+ fIshunt = 0;
+ fGasMix = 0;
+
+ // The chamber dimensions
+ for (Int_t iplan = 0; iplan < kNplan; iplan++) {
+ fClengthI[iplan] = 0.;
+ fClengthM[iplan] = 0.;
+ fClengthO[iplan] = 0.;
+ fCwidth[iplan] = 0.;
+ }
SetMarkerColor(kWhite);
+
}
//_____________________________________________________________________________
//
// Add a hit for the TRD
//
+
TClonesArray &lhits = *fHits;
new(lhits[fNhits++]) AliTRDhit(fIshunt,track,vol,hits);
+
}
//_____________________________________________________________________________
//
// Create the ROOT TNode geometry for the TRD
//
+
TNode *Node, *Top;
TPGON *pgon;
const Int_t kColorTRD = 46;
// Find the top node alice
- Top=gAlice->GetGeometry()->GetNode("alice");
+ Top = gAlice->GetGeometry()->GetNode("alice");
- pgon = new TPGON("S_TRD","TRD","void",0,360,nsect,4);
- Float_t ff = TMath::Cos(kDegrad * 180 / nsect);
- Float_t rrmin = rmin / ff;
- Float_t rrmax = rmax / ff;
- pgon->DefineSection(0,-zmax1,rrmax,rrmax);
- pgon->DefineSection(1,-zmax2,rrmin,rrmax);
- pgon->DefineSection(2, zmax2,rrmin,rrmax);
- pgon->DefineSection(3, zmax1,rrmax,rrmax);
+ pgon = new TPGON("S_TRD","TRD","void",0,360,kNsect,4);
+ Float_t ff = TMath::Cos(kDegrad * 180 / kNsect);
+ Float_t rrmin = kRmin / ff;
+ Float_t rrmax = kRmax / ff;
+ pgon->DefineSection(0,-kZmax1,rrmax,rrmax);
+ pgon->DefineSection(1,-kZmax2,rrmin,rrmax);
+ pgon->DefineSection(2, kZmax2,rrmin,rrmax);
+ pgon->DefineSection(3, kZmax1,rrmax,rrmax);
Top->cd();
Node = new TNode("TRD","TRD","S_TRD",0,0,0,"");
Node->SetLineColor(kColorTRD);
}
//_____________________________________________________________________________
-void AliTRD::CreateMaterials()
+void AliTRD::CreateGeometry()
{
+ //
+ // Creates the volumes for the TRD chambers
+ //
+ // Author: Christoph Blume (C.Blume@gsi.de) 20/07/99
+ //
+ // The volumes:
+ // TRD (Air) --- The TRD mother volume for one sector.
+ // To be placed into the spaceframe.
+ //
+ // UAFI(/M/O) (Al) --- The aluminum frame of the inner(/middle/outer) chambers (readout)
+ // UCFI(/M/O) (C) --- The carbon frame of the inner(/middle/outer) chambers
+ // (driftchamber + radiator)
+ // UAII(/M/O) (Air) --- The inner part of the readout of the inner(/middle/outer) chambers
+ // UFII(/M/O) (Air) --- The inner part of the chamner and radiator of the
+ // inner(/middle/outer) chambers
+ //
+ // The material layers in one chamber:
+ // UL01 (G10) --- The gas seal of the radiator
+ // UL02 (CO2) --- The gas in the radiator
+ // UL03 (PE) --- The foil stack
+ // UL04 (Mylar) --- Entrance window to the driftvolume and HV-cathode
+ // UL05 (Xe) --- The driftvolume
+ // UL06 (Xe) --- The amplification region
+ //
+ // UL07 (Cu) --- The pad plane
+ // UL08 (G10) --- The Nomex honeycomb support structure
+ // UL09 (Cu) --- FEE and signal lines
+ // UL10 (PE) --- The cooling devices
+ // UL11 (Water) --- The cooling water
+
+ // Check that FRAME is there otherwise we have no place where to put the TRD
+ AliModule* FRAME = gAlice->GetModule("FRAME");
+ if (!FRAME) return;
+
+ const Int_t npar_trd = 4;
+ const Int_t npar_cha = 3;
+
+ Float_t par_dum[3];
+ Float_t par_trd[npar_trd];
+ Float_t par_cha[npar_cha];
+
+ Float_t xpos, ypos, zpos;
+
+ Int_t *idtmed = fIdtmed->GetArray()-1299;
+
+ // The length of the inner chambers
+ for (Int_t iplan = 0; iplan < kNplan; iplan++) fClengthI[iplan] = 110.0;
+ // The length of the middle chambers
+ fClengthM[0] = 123.5;
+ fClengthM[1] = 131.0;
+ fClengthM[2] = 138.5;
+ fClengthM[3] = 146.0;
+ fClengthM[4] = 153.0;
+ fClengthM[5] = 160.5;
+ // The length of the outer chambers
+ fClengthO[0] = 123.5;
+ fClengthO[1] = 131.0;
+ fClengthO[2] = 134.5;
+ fClengthO[3] = 142.0;
+ fClengthO[4] = 142.0;
+ fClengthO[5] = 134.5;
+
+ // The width of the chambers
+ fCwidth[0] = 99.6;
+ fCwidth[1] = 104.1;
+ fCwidth[2] = 108.5;
+ fCwidth[3] = 112.9;
+ fCwidth[4] = 117.4;
+ fCwidth[5] = 121.8;
+
+ // The TRD mother volume for one sector (Air) (dimensions identical to BTR1-3)
+ par_trd[0] = kSwidth1/2.;
+ par_trd[1] = kSwidth2/2.;
+ par_trd[2] = kSlength/2.;
+ par_trd[3] = kSheight/2.;
+ gMC->Gsvolu("TRD ","TRD1",idtmed[1302-1],par_trd,npar_trd);
+
+ // The aluminum frames - readout + electronics (Al)
+ // The inner chambers
+ gMC->Gsvolu("UAFI","BOX ",idtmed[1301-1],par_dum,0);
+ // The middle chambers
+ gMC->Gsvolu("UAFM","BOX ",idtmed[1301-1],par_dum,0);
+ // The outer chambers
+ gMC->Gsvolu("UAFO","BOX ",idtmed[1301-1],par_dum,0);
+
+ // The inner part of the aluminum frames (Air)
+ // The inner chambers
+ gMC->Gsvolu("UAII","BOX ",idtmed[1302-1],par_dum,0);
+ // The middle chambers
+ gMC->Gsvolu("UAIM","BOX ",idtmed[1302-1],par_dum,0);
+ // The outer chambers
+ gMC->Gsvolu("UAIO","BOX ",idtmed[1302-1],par_dum,0);
+
+ // The carbon frames - radiator + driftchamber (C)
+ // The inner chambers
+ gMC->Gsvolu("UCFI","BOX ",idtmed[1307-1],par_dum,0);
+ // The middle chambers
+ gMC->Gsvolu("UCFM","BOX ",idtmed[1307-1],par_dum,0);
+ // The outer chambers
+ gMC->Gsvolu("UCFO","BOX ",idtmed[1307-1],par_dum,0);
+
+ // The inner part of the carbon frames (Air)
+ // The inner chambers
+ gMC->Gsvolu("UCII","BOX ",idtmed[1302-1],par_dum,0);
+ // The middle chambers
+ gMC->Gsvolu("UCIM","BOX ",idtmed[1302-1],par_dum,0);
+ // The outer chambers
+ gMC->Gsvolu("UCIO","BOX ",idtmed[1302-1],par_dum,0);
+
+ // The material layers inside the chambers
+ par_cha[0] = -1.;
+ par_cha[1] = -1.;
+ // G10 layer (radiator seal)
+ par_cha[2] = kSeThick/2;
+ gMC->Gsvolu("UL01","BOX ",idtmed[1313-1],par_cha,npar_cha);
+ // CO2 layer (radiator)
+ par_cha[2] = kRaThick/2;
+ gMC->Gsvolu("UL02","BOX ",idtmed[1312-1],par_cha,npar_cha);
+ // PE layer (radiator)
+ par_cha[2] = kPeThick/2;
+ gMC->Gsvolu("UL03","BOX ",idtmed[1303-1],par_cha,npar_cha);
+ // Mylar layer (entrance window + HV cathode)
+ par_cha[2] = kMyThick/2;
+ gMC->Gsvolu("UL04","BOX ",idtmed[1308-1],par_cha,npar_cha);
+ // Xe/Isobutane layer (drift volume, sensitive)
+ par_cha[2] = kDrThick/2.;
+ gMC->Gsvolu("UL05","BOX ",idtmed[1309-1],par_cha,npar_cha);
+ // Xe/Isobutane layer (amplification volume, not sensitive)
+ par_cha[2] = kAmThick/2.;
+ gMC->Gsvolu("UL06","BOX ",idtmed[1309-1],par_cha,npar_cha);
+
+ // Cu layer (pad plane)
+ par_cha[2] = kCuThick/2;
+ gMC->Gsvolu("UL07","BOX ",idtmed[1305-1],par_cha,npar_cha);
+ // G10 layer (support structure)
+ par_cha[2] = kSuThick/2;
+ gMC->Gsvolu("UL08","BOX ",idtmed[1313-1],par_cha,npar_cha);
+ // Cu layer (FEE + signal lines)
+ par_cha[2] = kFeThick/2;
+ gMC->Gsvolu("UL09","BOX ",idtmed[1305-1],par_cha,npar_cha);
+ // PE layer (cooling devices)
+ par_cha[2] = kCoThick/2;
+ gMC->Gsvolu("UL10","BOX ",idtmed[1303-1],par_cha,npar_cha);
+ // Water layer (cooling)
+ par_cha[2] = kWaThick/2;
+ gMC->Gsvolu("UL11","BOX ",idtmed[1314-1],par_cha,npar_cha);
+
+ // Position the layers in the chambers
+ xpos = 0;
+ ypos = 0;
+
+ // G10 layer (radiator seal)
+ zpos = kSeZpos;
+ gMC->Gspos("UL01",1,"UCII",xpos,ypos,zpos,0,"ONLY");
+ gMC->Gspos("UL01",2,"UCIM",xpos,ypos,zpos,0,"ONLY");
+ gMC->Gspos("UL01",3,"UCIO",xpos,ypos,zpos,0,"ONLY");
+ // CO2 layer (radiator)
+ zpos = kRaZpos;
+ gMC->Gspos("UL02",1,"UCII",xpos,ypos,zpos,0,"ONLY");
+ gMC->Gspos("UL02",2,"UCIM",xpos,ypos,zpos,0,"ONLY");
+ gMC->Gspos("UL02",3,"UCIO",xpos,ypos,zpos,0,"ONLY");
+ // PE layer (radiator)
+ zpos = 0;
+ gMC->Gspos("UL03",1,"UL02",xpos,ypos,zpos,0,"ONLY");
+ // Mylar layer (entrance window + HV cathode)
+ zpos = kMyZpos;
+ gMC->Gspos("UL04",1,"UCII",xpos,ypos,zpos,0,"ONLY");
+ gMC->Gspos("UL04",2,"UCIM",xpos,ypos,zpos,0,"ONLY");
+ gMC->Gspos("UL04",3,"UCIO",xpos,ypos,zpos,0,"ONLY");
+ // Xe/Isobutane layer (drift volume)
+ zpos = kDrZpos;
+ gMC->Gspos("UL05",1,"UCII",xpos,ypos,zpos,0,"ONLY");
+ gMC->Gspos("UL05",2,"UCIM",xpos,ypos,zpos,0,"ONLY");
+ gMC->Gspos("UL05",3,"UCIO",xpos,ypos,zpos,0,"ONLY");
+ // Xe/Isobutane layer (amplification volume)
+ zpos = kAmZpos;
+ gMC->Gspos("UL06",1,"UCII",xpos,ypos,zpos,0,"ONLY");
+ gMC->Gspos("UL06",2,"UCIM",xpos,ypos,zpos,0,"ONLY");
+ gMC->Gspos("UL06",3,"UCIO",xpos,ypos,zpos,0,"ONLY");
+
+ // Cu layer (pad plane)
+ zpos = kCuZpos;
+ gMC->Gspos("UL07",1,"UAII",xpos,ypos,zpos,0,"ONLY");
+ gMC->Gspos("UL07",2,"UAIM",xpos,ypos,zpos,0,"ONLY");
+ gMC->Gspos("UL07",3,"UAIO",xpos,ypos,zpos,0,"ONLY");
+ // G10 layer (support structure)
+ zpos = kSuZpos;
+ gMC->Gspos("UL08",1,"UAII",xpos,ypos,zpos,0,"ONLY");
+ gMC->Gspos("UL08",2,"UAIM",xpos,ypos,zpos,0,"ONLY");
+ gMC->Gspos("UL08",3,"UAIO",xpos,ypos,zpos,0,"ONLY");
+ // Cu layer (FEE + signal lines)
+ zpos = kFeZpos;
+ gMC->Gspos("UL09",1,"UAII",xpos,ypos,zpos,0,"ONLY");
+ gMC->Gspos("UL09",2,"UAIM",xpos,ypos,zpos,0,"ONLY");
+ gMC->Gspos("UL09",3,"UAIO",xpos,ypos,zpos,0,"ONLY");
+ // PE layer (cooling devices)
+ zpos = kCoZpos;
+ gMC->Gspos("UL10",1,"UAII",xpos,ypos,zpos,0,"ONLY");
+ gMC->Gspos("UL10",2,"UAIM",xpos,ypos,zpos,0,"ONLY");
+ gMC->Gspos("UL10",3,"UAIO",xpos,ypos,zpos,0,"ONLY");
+ // Water layer (cooling)
+ zpos = kWaZpos;
+ gMC->Gspos("UL11",1,"UAII",xpos,ypos,zpos,0,"ONLY");
+ gMC->Gspos("UL11",1,"UAIM",xpos,ypos,zpos,0,"ONLY");
+ gMC->Gspos("UL11",1,"UAIO",xpos,ypos,zpos,0,"ONLY");
+
+ // Position the chambers in the TRD mother volume
+ for (Int_t iplan = 1; iplan <= kNplan; iplan++) {
+
+ // The inner chambers ---------------------------------------------------------------
+
+ // the aluminum frame
+ //par_cha[0] = kSwidth1/2. + (iplan-1) * kCwidcha/2.;
+ par_cha[0] = fCwidth[iplan-1]/2.;
+ par_cha[1] = fClengthI[iplan-1]/2.;
+ par_cha[2] = kCaframe/2.;
+ xpos = 0.;
+ ypos = 0.;
+ zpos = kCheight - kCaframe/2. - kSheight/2. + (iplan-1) * (kCheight + kCspace);
+ gMC->Gsposp("UAFI",iplan ,"TRD ",xpos,ypos,zpos,0,"MANY",par_cha,npar_cha);
+
+ // the inner part of the aluminum frame
+ //par_cha[0] = kSwidth1/2. + (iplan-1) * kCwidcha/2. - kCathick;
+ par_cha[0] = fCwidth[iplan-1]/2. - kCathick;
+ par_cha[1] = fClengthI[iplan-1]/2. - kCathick;
+ par_cha[2] = kCaframe/2.;
+ xpos = 0.;
+ ypos = 0.;
+ zpos = kCheight - kCaframe/2. - kSheight/2. + (iplan-1) * (kCheight + kCspace);
+ gMC->Gsposp("UAII",iplan ,"TRD ",xpos,ypos,zpos,0,"ONLY",par_cha,npar_cha);
+
+ // the carbon frame
+ //par_cha[0] = kSwidth1/2. + (iplan-1) * kCwidcha/2.;
+ par_cha[0] = fCwidth[iplan-1]/2.;
+ par_cha[1] = fClengthI[iplan-1]/2.;
+ par_cha[2] = kCcframe/2.;
+ xpos = 0.;
+ ypos = 0.;
+ zpos = kCcframe/2. - kSheight/2. + (iplan-1) * (kCheight + kCspace);
+ gMC->Gsposp("UCFI",iplan ,"TRD ",xpos,ypos,zpos,0,"MANY",par_cha,npar_cha);
+
+ // the inner part of the carbon frame
+ //par_cha[0] = kSwidth1/2. + (iplan-1) * kCwidcha/2. - kCcthick;
+ par_cha[0] = fCwidth[iplan-1]/2. - kCcthick;
+ par_cha[1] = fClengthI[iplan-1]/2. - kCcthick;
+ par_cha[2] = kCcframe/2.;
+ xpos = 0.;
+ ypos = 0.;
+ zpos = kCcframe/2. - kSheight/2. + (iplan-1) * (kCheight + kCspace);
+ gMC->Gsposp("UCII",iplan ,"TRD ",xpos,ypos,zpos,0,"ONLY",par_cha,npar_cha);
+
+ // The middle chambers --------------------------------------------------------------
+
+ // the aluminum frame
+ //par_cha[0] = kSwidth1/2. + (iplan-1) * kCwidcha/2.;
+ par_cha[0] = fCwidth[iplan-1]/2.;
+ par_cha[1] = fClengthM[iplan-1]/2.;
+ par_cha[2] = kCaframe/2.;
+ xpos = 0.;
+ ypos = fClengthI[iplan-1]/2. + fClengthM[iplan-1]/2.;
+ zpos = kCheight - kCaframe/2. - kSheight/2. + (iplan-1) * (kCheight + kCspace);
+ gMC->Gsposp("UAFM",iplan ,"TRD ",xpos, ypos,zpos,0,"MANY",par_cha,npar_cha);
+ gMC->Gsposp("UAFM",iplan+kNplan,"TRD ",xpos,-ypos,zpos,0,"MANY",par_cha,npar_cha);
+
+ // the inner part of the aluminum frame
+ //par_cha[0] = kSwidth1/2. + (iplan-1) * kCwidcha/2. - kCathick;
+ par_cha[0] = fCwidth[iplan-1]/2. - kCathick;
+ par_cha[1] = fClengthM[iplan-1]/2. - kCathick;
+ par_cha[2] = kCaframe/2.;
+ xpos = 0.;
+ ypos = fClengthI[iplan-1]/2. + fClengthM[iplan-1]/2.;
+ zpos = kCheight - kCaframe/2. - kSheight/2. + (iplan-1) * (kCheight + kCspace);
+ gMC->Gsposp("UAIM",iplan ,"TRD ",xpos, ypos,zpos,0,"ONLY",par_cha,npar_cha);
+ gMC->Gsposp("UAIM",iplan+kNplan,"TRD ",xpos,-ypos,zpos,0,"ONLY",par_cha,npar_cha);
+
+ // the carbon frame
+ //par_cha[0] = kSwidth1/2. + (iplan-1) * kCwidcha/2.;
+ par_cha[0] = fCwidth[iplan-1]/2.;
+ par_cha[1] = fClengthM[iplan-1]/2.;
+ par_cha[2] = kCcframe/2.;
+ xpos = 0.;
+ ypos = fClengthI[iplan-1]/2. + fClengthM[iplan-1]/2.;
+ zpos = kCcframe/2. - kSheight/2. + (iplan-1) * (kCheight + kCspace);
+ gMC->Gsposp("UCFM",iplan, "TRD ",xpos, ypos,zpos,0,"MANY",par_cha,npar_cha);
+ gMC->Gsposp("UCFM",iplan+kNplan,"TRD ",xpos,-ypos,zpos,0,"MANY",par_cha,npar_cha);
+
+ // the inner part of the carbon frame
+ //par_cha[0] = kSwidth1/2. + (iplan-1) * kCwidcha/2. - kCcthick;
+ par_cha[0] = fCwidth[iplan-1]/2. - kCcthick;
+ par_cha[1] = fClengthM[iplan-1]/2. - kCcthick;
+ par_cha[2] = kCcframe/2.;
+ xpos = 0.;
+ ypos = fClengthI[iplan-1]/2. + fClengthM[iplan-1]/2.;
+ zpos = kCcframe/2. - kSheight/2. + (iplan-1) * (kCheight + kCspace);
+ gMC->Gsposp("UCIM",iplan ,"TRD ",xpos, ypos,zpos,0,"ONLY",par_cha,npar_cha);
+ gMC->Gsposp("UCIM",iplan+kNplan,"TRD ",xpos,-ypos,zpos,0,"ONLY",par_cha,npar_cha);
+
+ // The outer chambers ---------------------------------------------------------------
+
+ // the aluminum frame
+ //par_cha[0] = kSwidth1/2. + (iplan-1) * kCwidcha/2.;
+ par_cha[0] = fCwidth[iplan-1]/2.;
+ par_cha[1] = fClengthO[iplan-1]/2.;
+ par_cha[2] = kCaframe/2.;
+ xpos = 0.;
+ ypos = fClengthI[iplan-1]/2. + fClengthM[iplan-1] + fClengthO[iplan-1]/2.;
+ zpos = kCheight - kCaframe/2. - kSheight/2. + (iplan-1) * (kCheight + kCspace);
+ gMC->Gsposp("UAFO",iplan ,"TRD ",xpos, ypos,zpos,0,"MANY",par_cha,npar_cha);
+ gMC->Gsposp("UAFO",iplan+kNplan,"TRD ",xpos,-ypos,zpos,0,"MANY",par_cha,npar_cha);
+
+ // the inner part of the aluminum frame
+ //par_cha[0] = kSwidth1/2. + (iplan-1) * kCwidcha/2. - kCathick;
+ par_cha[0] = fCwidth[iplan-1]/2. - kCathick;
+ par_cha[1] = fClengthO[iplan-1]/2. - kCathick;
+ par_cha[2] = kCaframe/2.;
+ xpos = 0.;
+ ypos = fClengthI[iplan-1]/2. + fClengthM[iplan-1] + fClengthO[iplan-1]/2.;
+ zpos = kCheight - kCaframe/2. - kSheight/2. + (iplan-1) * (kCheight + kCspace);
+ gMC->Gsposp("UAIO",iplan ,"TRD ",xpos, ypos,zpos,0,"ONLY",par_cha,npar_cha);
+ gMC->Gsposp("UAIO",iplan+kNplan,"TRD ",xpos,-ypos,zpos,0,"ONLY",par_cha,npar_cha);
+
+ // the carbon frame
+ //par_cha[0] = kSwidth1/2. + (iplan-1) * kCwidcha/2.;
+ par_cha[0] = fCwidth[iplan-1]/2.;
+ par_cha[1] = fClengthO[iplan-1]/2.;
+ par_cha[2] = kCcframe/2.;
+ xpos = 0.;
+ ypos = fClengthI[iplan-1]/2. + fClengthM[iplan-1] + fClengthO[iplan-1]/2.;
+ zpos = kCcframe/2. - kSheight/2. + (iplan-1) * (kCheight + kCspace);
+ gMC->Gsposp("UCFO",iplan, "TRD ",xpos, ypos,zpos,0,"MANY",par_cha,npar_cha);
+ gMC->Gsposp("UCFO",iplan+kNplan,"TRD ",xpos,-ypos,zpos,0,"MANY",par_cha,npar_cha);
+
+ // the inner part of the carbon frame
+ //par_cha[0] = kSwidth1/2. + (iplan-1) * kCwidcha/2. - kCcthick;
+ par_cha[0] = fCwidth[iplan-1]/2. - kCcthick;
+ par_cha[1] = fClengthO[iplan-1]/2. - kCcthick;
+ par_cha[2] = kCcframe/2.;
+ xpos = 0.;
+ ypos = fClengthI[iplan-1]/2. + fClengthM[iplan-1] + fClengthO[iplan-1]/2.;
+ zpos = kCcframe/2. - kSheight/2. + (iplan-1) * (kCheight + kCspace);
+ gMC->Gsposp("UCIO",iplan ,"TRD ",xpos, ypos,zpos,0,"ONLY",par_cha,npar_cha);
+ gMC->Gsposp("UCIO",iplan+kNplan,"TRD ",xpos,-ypos,zpos,0,"ONLY",par_cha,npar_cha);
+
+ }
+}
+
+//_____________________________________________________________________________
+void AliTRD::CreateMaterials()
+{
//
// Create the materials for the TRD
// Origin Y.Foka
AliMixture(7, "Mylar$", amy, zmy, dmy, -3, wmy);
AliMixture(8, "CO2$", aco, zco, dco, -2, wco);
AliMixture(9, "Isobutane$", ais, zis, dis, -2, wis);
- AliMixture(13, "Water$" , awa, zwa, dwa, -2, wwa);
+ AliMixture(13,"Water$", awa, zwa, dwa, -2, wwa);
// Gas mixtures
- char namate[21];
+ Char_t namate[21];
// Xe/CO2-mixture
// Get properties of Xe
gMC->Gfmate((*fIdmate)[4], namate, agm[0], zgm[0], d, radl, absl, buf, nbuf);
}
+//_____________________________________________________________________________
+void AliTRD::DrawModule()
+{
+ //
+ // Draw a shaded view of the Transition Radiation Detector version 0
+ //
+
+ // Set everything unseen
+ gMC->Gsatt("*" ,"SEEN",-1);
+
+ // Set ALIC mother transparent
+ gMC->Gsatt("ALIC","SEEN", 0);
+
+ // Set the volumes visible
+ gMC->Gsatt("B032","SEEN", 0);
+ gMC->Gsatt("B028","SEEN", 0);
+ gMC->Gsatt("B029","SEEN", 0);
+ gMC->Gsatt("B030","SEEN", 0);
+ gMC->Gsatt("BTR1","SEEN", 0);
+ gMC->Gsatt("BTR2","SEEN", 0);
+ gMC->Gsatt("BTR3","SEEN", 0);
+ gMC->Gsatt("TRD" ,"SEEN", 0);
+ gMC->Gsatt("UCII","SEEN", 0);
+ gMC->Gsatt("UCIM","SEEN", 0);
+ gMC->Gsatt("UCIO","SEEN", 0);
+ gMC->Gsatt("UL02","SEEN", 1);
+ gMC->Gsatt("UL05","SEEN", 1);
+ gMC->Gsatt("UL06","SEEN", 1);
+
+ gMC->Gdopt("hide", "on");
+ gMC->Gdopt("shad", "on");
+ gMC->Gsatt("*", "fill", 7);
+ gMC->SetClipBox(".");
+ gMC->SetClipBox("*", 0, 2000, -2000, 2000, -2000, 2000);
+ gMC->DefaultRange();
+ gMC->Gdraw("alic", 40, 30, 0, 12, 9.4, .021, .021);
+ gMC->Gdhead(1111, "Transition Radiation Detector");
+ gMC->Gdman(18, 4, "MAN");
+
+}
+
//_____________________________________________________________________________
Int_t AliTRD::DistancetoPrimitive(Int_t , Int_t )
{
//
// Distance between the mouse and the TRD detector on the screen
// Dummy routine
- //
- return 9999;
+
+ return 9999;
+
}
//_____________________________________________________________________________
//
// Initialise the TRD detector after the geometry has been created
//
+
Int_t i;
- //
+
printf("\n");
for(i=0;i<35;i++) printf("*");
printf(" TRD_INIT ");
printf(" Gas Mixture: 90%% Xe + 10%% CO2\n");
else
printf(" Gas Mixture: 97%% Xe + 3%% Isobutane\n");
- if (fSensPlane)
- printf(" Only plane %d is sensitive\n",fSensPlane);
- if (fSensChamber)
- printf(" Only chamber %d is sensitive\n",fSensChamber);
- if (fSensSector)
- printf(" Only sector %d is sensitive\n",fSensSector);
-
- for(i=0;i<80;i++) printf("*");
- printf("\n");
+
}
//_____________________________________________________________________________
void AliTRD::SetGasMix(Int_t imix)
{
-
+ //
+ // Defines the gas mixture (imix=0: Xe/Isobutane imix=1: Xe/CO2)
+ //
+
if ((imix < 0) || (imix > 1)) {
printf("Wrong input value: %d\n",imix);
printf("Use standard setting\n");
}
-//_____________________________________________________________________________
-void AliTRD::SetSensPlane(Int_t iplane)
-{
-
- if ((iplane < 0) || (iplane > 6)) {
- printf("Wrong input value: %d\n",iplane);
- printf("Use standard setting\n");
- fSensPlane = 0;
- fSensSelect = 0;
- return;
- }
-
- fSensSelect = 1;
- fSensPlane = iplane;
-
-}
-
-//_____________________________________________________________________________
-void AliTRD::SetSensChamber(Int_t ichamber)
-{
-
- if ((ichamber < 0) || (ichamber > 5)) {
- printf("Wrong input value: %d\n",ichamber);
- printf("Use standard setting\n");
- fSensChamber = 0;
- fSensSelect = 0;
- return;
- }
-
- fSensSelect = 1;
- fSensChamber = ichamber;
-
-}
-
-//_____________________________________________________________________________
-void AliTRD::SetSensSector(Int_t isector)
-{
-
- if ((isector < 0) || (isector > 18)) {
- printf("Wrong input value: %d\n",isector);
- printf("Use standard setting\n");
- fSensSector = 0;
- fSensSelect = 0;
- return;
- }
-
- fSensSelect = 1;
- fSensSector = isector;
-
-}
-
ClassImp(AliTRDhit)
//_____________________________________________________________________________
// Create a TRD hit
//
- //
// Store volume hierarchy
fSector = vol[0];
fChamber = vol[1];
fPlane = vol[2];
- //
+
// Store position and charge
fX = hits[0];
fY = hits[1];
fZ = hits[2];
fQ = hits[3];
+
}
#include "AliDetector.h"
#include "AliHit.h"
-
+#include "AliTRDconst.h"
+
+//_____________________________________________________________________________
class AliTRD : public AliDetector {
protected:
+ Int_t fGasMix; // Gas mixture. 0: Xe/Isobutane 1: Xe/CO2
- Int_t fGasMix; // Gas mixture. 0: Xe/Isobutane 1: Xe/CO2
- Int_t fSensSelect; // Switch to select only parts of the detector
- Int_t fSensPlane; // Sensitive detector plane
- Int_t fSensChamber; // Sensitive detector chamber
- Int_t fSensSector; // Sensitive detector sector
+ Float_t fClengthI[kNplan]; // Length of the inner chambers
+ Float_t fClengthM[kNplan]; // Length of the middle chambers
+ Float_t fClengthO[kNplan]; // Length of the outer chambers
+ Float_t fCwidth[kNplan]; // Width of the chambers
public:
AliTRD();
virtual ~AliTRD() {}
virtual void AddHit(Int_t, Int_t*, Float_t*);
virtual void BuildGeometry();
+ virtual void CreateGeometry();
virtual void CreateMaterials();
+ virtual void DrawModule();
Int_t DistancetoPrimitive(Int_t px, Int_t py);
virtual void Init();
- virtual Int_t IsVersion() const =0;
- virtual void StepManager()=0;
+ virtual Int_t IsVersion() const = 0;
+ virtual void StepManager() = 0;
virtual void SetGasMix(Int_t imix = 0);
- virtual void SetSensPlane(Int_t iplane = 0);
- virtual void SetSensChamber(Int_t ichamber = 0);
- virtual void SetSensSector(Int_t isector = 0);
-
- ClassDef(AliTRD,1) // Transition Radiation Detector base class
-};
-
-////////////////////////////////////////////////
-// Geometry parameter
-////////////////////////////////////////////////
-
-const Int_t nsect = 18; // Number of sectors in the full detector
-const Int_t nmodul = 6; // Number of modules in each sector
-const Int_t ncham = 6; // Number of different chambers
-const Int_t narmsec = 5; // Number of sectors in one arm (geometry 1)
-
-const Float_t rmin = 294.0; // r-dimensions of the TRD-frame
-const Float_t rmax = 368.0;
-
-const Float_t zmax1 = 378.35; // z-dimensions of the TRD-frame
-const Float_t zmax2 = 302.0;
+ virtual void SetHits(Int_t ihit) {};
+ virtual void SetSensPlane(Int_t iplane) {};
+ virtual void SetSensChamber(Int_t ichamber) {};
+ virtual void SetSensSector(Int_t isector) {};
-const Float_t zleni = 110.0; // z-dimension of the inner chamber
-const Float_t zlenn = 156.0; // z-dimension of the neighbouring chambers
-const Float_t zleno = 156.0; // z-dimension of the outer chambers
+ ClassDef(AliTRD,1) // Transition Radiation Detector base class
-const Float_t widpl1 = 99.6; // rphi-dimension of the innermost plane
-
-const Float_t alframe = 1.0; // Thickness of the aluminium of the support frame
-
-const Float_t ccframe = 1.0; // Thickness of the carbon chamber frame
-
-// Thicknesses of the the material layers
-const Float_t sethick = 0.02; // Radiator seal
-const Float_t rathick = 4.2; // Radiator
-const Float_t pethick = 0.20; // PE-layer in the radiator
-const Float_t mythick = 0.005; // Mylar-layer
-const Float_t xethick = 3.5; // Gas mixture
-const Float_t cuthick = 0.001; // Pad plane
-const Float_t suthick = 0.06; // HEXCEL+G10 support structure (= 0.31% X0)
-const Float_t fethick = 0.0044; // FEE + signal lines (= 0.31% X0)
-const Float_t cothick = 0.02; // PE of the cooling device
-const Float_t wathick = 0.01; // Cooling water
-
-// Position of the material layers
-const Float_t sezpos = -5.657; // Radiator seal
-const Float_t razpos = -3.557; // Radiator
-const Float_t pezpos = 0.0; // PE-layer in the radiator
-const Float_t myzpos = -1.4545; // Mylar-layer
-const Float_t xezpos = 0.298; // Gas mixture
-const Float_t cuzpos = 2.047; // Pad plane
-const Float_t suzpos = 3.046; // HEXCEL+G10 support structure
-const Float_t fezpos = 4.0482; // FEE + signal lines
-const Float_t cozpos = 4.1504; // PE of the cooling devices
-const Float_t wazpos = 4.3004; // Cooling water
-
-////////////////////////////////////////////////
-// Parameter for the energy loss calculation
-////////////////////////////////////////////////
-
-const Float_t kPoti = 12.1; // First ionization potential (eV)
-const Float_t kEend = 50000.0; // Maximum energy (50 keV);
+};
//_____________________________________________________________________________
class AliTRDhit : public AliHit {
virtual ~AliTRDhit() {}
ClassDef(AliTRDhit,1) // Hits for Transition Radiation Detector
+
};
#endif
--- /dev/null
+//
+// Parameter for the TRD
+//
+
+//_____________________________________________________________________________
+// Geometry parameter
+
+const Int_t kNsect = 18; // Number of sectors in the full detector
+const Int_t kNplan = 6; // Number of planes of the TRD
+
+const Float_t kRmin = 294.0; // r-dimensions of the TRD
+const Float_t kRmax = 368.0;
+
+const Float_t kZmax1 = 378.35; // z-dimensions of the TRD
+const Float_t kZmax2 = 302.0;
+
+const Float_t kSheight = 74.0; // Height of the TRD-volume in spaceframe
+const Float_t kSwidth1 = 103.674; // Lower width of the TRD-volume in spaceframe
+const Float_t kSwidth2 = 129.768; // Upper width of the TRD-volume in spaceframe
+const Float_t kSlength = 751.0; // Length of the TRD-volume in spaceframe
+
+const Float_t kCheight = 11.0; // Height of the chambers
+const Float_t kCspace = 1.6; // Vertical spacing of the chambers
+const Float_t kCaframe = 2.675; // Height of the aluminum frame
+const Float_t kCathick = 1.0; // Thickness of the aluminum frame
+const Float_t kCcthick = 1.0; // Thickness of the carbon frame
+
+const Float_t kCwidcha = (kSwidth2 - kSwidth1) / kSheight * (kCheight + kCspace);
+const Float_t kCcframe = kCheight - kCaframe;
+
+// Thicknesses of the the material layers
+const Float_t kSeThick = 0.02; // Radiator seal
+const Float_t kRaThick = 4.8; // Radiator
+const Float_t kPeThick = 0.20; // PE-layer in the radiator
+const Float_t kMyThick = 0.005; // Mylar-layer
+const Float_t kXeThick = 3.5; // Gas mixture
+const Float_t kDrThick = 3.0; // Drift region
+const Float_t kAmThick = kXeThick - kDrThick; // Amplification region
+
+const Float_t kCuThick = 0.001; // Pad plane
+const Float_t kSuThick = 0.06; // HEXCEL+G10 support structure (= 0.31% X0)
+const Float_t kFeThick = 0.0044; // FEE + signal lines (= 0.31% X0)
+const Float_t kCoThick = 0.02; // PE of the cooling device
+const Float_t kWaThick = 0.01; // Cooling water
+
+// Position of the material layers
+const Float_t kSeZpos = -4.1525; // Radiator seal
+const Float_t kRaZpos = -1.7425; // Radiator
+const Float_t kPeZpos = 0.0000; // PE-layer in the radiator
+const Float_t kMyZpos = 0.6600; // Mylar-layer
+const Float_t kDrZpos = 2.1625; // Drift region
+const Float_t kAmZpos = 4.1125; // Amplification region
+
+const Float_t kCuZpos = -1.3370; // Pad plane
+const Float_t kSuZpos = 0.0000; // Support structure
+const Float_t kFeZpos = 1.3053; // FEE + signal lines
+const Float_t kCoZpos = 1.3175; // PE of the cooling device
+const Float_t kWaZpos = 1.3325; // Cooling Water
+
+//_____________________________________________________________________________
//
// Standard constructor for Transition Radiation Detector version 0
//
- fIdSens1 = fIdSens2 = fIdSens3 = 0;
+
+ fIdSens = 0;
+ fHitsOn = 0;
+
+ fIdSpace1 = 0;
+ fIdSpace2 = 0;
+ fIdSpace3 = 0;
+
+ fIdChamber1 = 0;
+ fIdChamber2 = 0;
+ fIdChamber3 = 0;
+
}
//_____________________________________________________________________________
void AliTRDv0::CreateGeometry()
{
//
- // Create the GEANT geometry for the Transition Radiation Detector
- // --- The coarse geometry of the TRD, that can be used for background
- // studies. This version covers the full azimuth.
- // --- Author : Christoph Blume (GSI) 17/5/99
- //
- // --- Volume names :
- // TRD --> Mother TRD volume (Al)
- // UTRS --> Sectors of the sub-detector (Al)
- // UTRI --> Inner part of the detector frame (Air)
- // UTCI(N,O) --> Frames of the inner, neighbouring and outer chambers (C)
- // UTII(N,O) --> Inner part of the chambers (Air)
- // UTMI(N,O) --> Modules in the chambers (Air)
- // UT0I(N,O) --> Radiator seal (G10)
- // UT1I(N,O) --> Radiator (CO2)
- // UT2I(N,O) --> Polyethylene of radiator (PE)
- // UT3I(N,O) --> Entrance window (Mylar)
- // UT4I(N,O) --> Gas volume (sensitive) (Xe/Isobutane)
- // UT5I(N,O) --> Pad plane (Cu)
- // UT6I(N,O) --> Support structure (G10)
- // UT7I(N,O) --> FEE + signal lines (Cu)
- // UT8I(N,O) --> Polyethylene of cooling device (PE)
- // UT9I(N,O) --> Cooling water (Water)
- //
- //Begin_Html
- /*
- <img src="picts/AliTRDv0.gif">
- */
- //End_Html
- //Begin_Html
- /*
- <img src="picts/AliTRDv0Tree.gif">
- */
- //End_Html
-
- Float_t xpos, ypos, zpos, f;
- Int_t idmat[2];
-
- const Int_t nparmo = 10;
- const Int_t nparfr = 4;
- const Int_t nparic = 4;
- const Int_t nparnc = 4;
- const Int_t nparoc = 11;
-
- Float_t par_mo[nparmo];
- Float_t par_fr[nparfr];
- Float_t par_ic[nparic];
- Float_t par_nc[nparnc];
- Float_t par_oc[nparoc];
-
- Int_t *idtmed =fIdtmed->GetArray()-1299;
-
- //////////////////////////////////////////////////////////////////////////
- // Definition of Volumes
- //////////////////////////////////////////////////////////////////////////
-
- // Definition of the mother volume for the TRD (Al)
- par_mo[0] = 0.;
- par_mo[1] = 360.;
- par_mo[2] = nsect;
- par_mo[3] = 2.;
- par_mo[4] = -zmax1;
- par_mo[5] = rmin;
- par_mo[6] = rmax;
- par_mo[7] = zmax1;
- par_mo[8] = rmin;
- par_mo[9] = rmax;
- gMC->Gsvolu("TRD ", "PGON", idtmed[1301-1], par_mo, nparmo);
- gMC->Gsdvn("UTRS", "TRD ", nsect, 2);
-
- // The minimal width of a sector in rphi-direction
- Float_t widmi = rmin * TMath::Tan(kPI/nsect);
- // The maximal width of a sector in rphi-direction
- Float_t widma = rmax * TMath::Tan(kPI/nsect);
- // The total thickness of the spaceframe (Al + Air)
- Float_t frame = widmi - (widpl1 / 2);
-
- // Definition of the inner part of the detector frame (Air)
- par_fr[0] = widmi - alframe / 2.;
- par_fr[1] = widma - alframe / 2.;
- par_fr[2] = zmax1;
- par_fr[3] = (rmax - rmin) / 2;
- gMC->Gsvolu("UTRI", "TRD1", idtmed[1302-1], par_fr, nparfr);
-
- //
- // The outer chambers
- //
-
- // Calculate some shape-parameter
- Float_t tanzr = (zmax1 - zmax2) / (rmax - rmin);
- Float_t theoc = -kRaddeg * TMath::ATan(tanzr / 2);
-
- // The carbon frame (C)
- par_oc[0] = (rmax - rmin) / 2;
- par_oc[1] = theoc;
- par_oc[2] = 90.;
- par_oc[3] = (zmax2 - zlenn - zleni/2) / 2;
- par_oc[4] = widmi - frame;
- par_oc[5] = widmi - frame;
- par_oc[6] = 0.;
- par_oc[7] = (zmax1 - zlenn - zleni/2) / 2;
- par_oc[8] = widma - frame;
- par_oc[9] = widma - frame;
- par_oc[10] = 0.;
- gMC->Gsvolu("UTCO", "TRAP", idtmed[1307-1], par_oc, nparoc);
-
- // The inner part (Air)
- par_oc[3] -= ccframe;
- par_oc[4] -= ccframe;
- par_oc[5] -= ccframe;
- par_oc[7] -= ccframe;
- par_oc[8] -= ccframe;
- par_oc[9] -= ccframe;
- gMC->Gsvolu("UTIO", "TRAP", idtmed[1302-1], par_oc, nparoc);
-
- // Definition of the six modules within each chamber
- gMC->Gsdvn("UTMO", "UTIO", nmodul, 3);
-
- // Definition of the layers of each chamber
- par_oc[1] = theoc;
- par_oc[2] = 90.;
- par_oc[3] = -1.;
- par_oc[4] = -1.;
- par_oc[5] = -1.;
- par_oc[6] = 0.;
- par_oc[7] = -1.;
- par_oc[8] = -1.;
- par_oc[9] = -1.;
- par_oc[10] = 0.;
- // G10 layer (radiator layer)
- par_oc[0] = sethick / 2;
- gMC->Gsvolu("UT0O", "TRAP", idtmed[1313-1], par_oc, nparoc);
- // CO2 layer (radiator)
- par_oc[0] = rathick / 2;
- gMC->Gsvolu("UT1O", "TRAP", idtmed[1312-1], par_oc, nparoc);
- // PE layer (radiator)
- par_oc[0] = pethick / 2;
- gMC->Gsvolu("UT2O", "TRAP", idtmed[1303-1], par_oc, nparoc);
- // Mylar layer (entrance window + HV cathode)
- par_oc[0] = mythick / 2;
- gMC->Gsvolu("UT3O", "TRAP", idtmed[1308-1], par_oc, nparoc);
- // Xe/Isobutane layer (gasvolume)
- par_oc[0] = xethick / 2;
- gMC->Gsvolu("UT4O", "TRAP", idtmed[1309-1], par_oc, nparoc);
- // Cu layer (pad plane)
- par_oc[0] = cuthick / 2;
- gMC->Gsvolu("UT5O", "TRAP", idtmed[1305-1], par_oc, nparoc);
- // G10 layer (support structure)
- par_oc[0] = suthick / 2;
- gMC->Gsvolu("UT6O", "TRAP", idtmed[1313-1], par_oc, nparoc);
- // Cu layer (FEE + signal lines)
- par_oc[0] = fethick / 2;
- gMC->Gsvolu("UT7O", "TRAP", idtmed[1305-1], par_oc, nparoc);
- // PE layer (cooling devices)
- par_oc[0] = cothick / 2;
- gMC->Gsvolu("UT8O", "TRAP", idtmed[1303-1], par_oc, nparoc);
- // Water layer (cooling)
- par_oc[0] = wathick / 2;
- gMC->Gsvolu("UT9O", "TRAP", idtmed[1314-1], par_oc, nparoc);
-
- //
- // The neighbouring chambers
- //
-
- // The carbon frame (C)
- par_nc[0] = widmi - frame;
- par_nc[1] = widma - frame;
- par_nc[2] = zlenn / 2;
- par_nc[3] = (rmax - rmin) / 2;
- gMC->Gsvolu("UTCN", "TRD1", idtmed[1307-1], par_nc, nparnc);
-
- // The inner part (Air)
- par_nc[0] -= ccframe;
- par_nc[1] -= ccframe;
- par_nc[2] -= ccframe;
- gMC->Gsvolu("UTIN", "TRD1", idtmed[1302-1], par_nc, nparnc);
-
- // Definition of the six modules within each outer chamber
- gMC->Gsdvn("UTMN", "UTIN", nmodul, 3);
-
- // Definition of the layers of each chamber
- par_nc[0] = -1.;
- par_nc[1] = -1.;
- par_nc[2] = -1.;
- // G10 layer (radiator layer)
- par_nc[3] = sethick / 2;
- gMC->Gsvolu("UT0N", "TRD1", idtmed[1313-1], par_nc, nparnc);
- // CO2 layer (radiator)
- par_nc[3] = rathick / 2;
- gMC->Gsvolu("UT1N", "TRD1", idtmed[1312-1], par_nc, nparnc);
- // PE layer (radiator)
- par_nc[3] = pethick / 2;
- gMC->Gsvolu("UT2N", "TRD1", idtmed[1303-1], par_nc, nparnc);
- // Mylar layer (entrance window + HV cathode)
- par_nc[3] = mythick / 2;
- gMC->Gsvolu("UT3N", "TRD1", idtmed[1308-1], par_nc, nparnc);
- // Xe/Isobutane layer (gasvolume)
- par_nc[3] = xethick / 2;
- gMC->Gsvolu("UT4N", "TRD1", idtmed[1309-1], par_nc, nparnc);
- // Cu layer (pad plane)
- par_nc[3] = cuthick / 2;
- gMC->Gsvolu("UT5N", "TRD1", idtmed[1305-1], par_nc, nparnc);
- // G10 layer (support structure)
- par_nc[3] = suthick / 2;
- gMC->Gsvolu("UT6N", "TRD1", idtmed[1313-1], par_nc, nparnc);
- // Cu layer (FEE + signal lines)
- par_nc[3] = fethick / 2;
- gMC->Gsvolu("UT7N", "TRD1", idtmed[1305-1], par_nc, nparnc);
- // PE layer (cooling devices)
- par_nc[3] = cothick / 2;
- gMC->Gsvolu("UT8N", "TRD1", idtmed[1303-1], par_nc, nparnc);
- // Water layer (cooling)
- par_nc[3] = wathick / 2;
- gMC->Gsvolu("UT9N", "TRD1", idtmed[1314-1], par_nc, nparnc);
-
+ // Create the GEANT geometry for the Transition Radiation Detector - Version 0
+ // This version covers the full azimuth.
//
- // The inner chamber
+ // Author: Christoph Blume (C.Blume@gsi.de) 20/07/99
//
- // The carbon frame (C)
- par_ic[0] = widmi - frame;
- par_ic[1] = widma - frame;
- par_ic[2] = zleni / 2;
- par_ic[3] = (rmax - rmin) / 2;
- gMC->Gsvolu("UTCI", "TRD1", idtmed[1307-1], par_ic, nparic);
-
- // The inner part (Air)
- par_ic[0] -= ccframe;
- par_ic[1] -= ccframe;
- par_ic[2] -= ccframe;
- gMC->Gsvolu("UTII", "TRD1", idtmed[1302-1], par_ic, nparic);
-
- // Definition of the six modules within each outer chamber
- gMC->Gsdvn("UTMI", "UTII", nmodul, 3);
-
- // Definition of the layers of each inner chamber
- par_ic[0] = -1.;
- par_ic[1] = -1.;
- par_ic[2] = -1.;
- // G10 layer (radiator layer)
- par_ic[3] = sethick / 2;
- gMC->Gsvolu("UT0I", "TRD1", idtmed[1313-1], par_ic, nparic);
- // CO2 layer (radiator)
- par_ic[3] = rathick / 2;
- gMC->Gsvolu("UT1I", "TRD1", idtmed[1312-1], par_ic, nparic);
- // PE layer (radiator)
- par_ic[3] = pethick / 2;
- gMC->Gsvolu("UT2I", "TRD1", idtmed[1303-1], par_ic, nparic);
- // Mylar layer (entrance window + HV cathode)
- par_ic[3] = mythick / 2;
- gMC->Gsvolu("UT3I", "TRD1", idtmed[1308-1], par_ic, nparic);
- // Xe/Isobutane layer (gasvolume)
- par_ic[3] = xethick / 2;
- gMC->Gsvolu("UT4I", "TRD1", idtmed[1309-1], par_ic, nparic);
- // Cu layer (pad plane)
- par_ic[3] = cuthick / 2;
- gMC->Gsvolu("UT5I", "TRD1", idtmed[1305-1], par_ic, nparic);
- // G10 layer (support structure)
- par_ic[3] = suthick / 2;
- gMC->Gsvolu("UT6I", "TRD1", idtmed[1313-1], par_ic, nparic);
- // Cu layer (FEE + signal lines)
- par_ic[3] = fethick / 2;
- gMC->Gsvolu("UT7I", "TRD1", idtmed[1305-1], par_ic, nparic);
- // PE layer (cooling devices)
- par_ic[3] = cothick / 2;
- gMC->Gsvolu("UT8I", "TRD1", idtmed[1303-1], par_ic, nparic);
- // Water layer (cooling)
- par_ic[3] = wathick / 2;
- gMC->Gsvolu("UT9I", "TRD1", idtmed[1314-1], par_ic, nparic);
-
- //////////////////////////////////////////////////////////////////////////
- // Positioning of Volumes
- //////////////////////////////////////////////////////////////////////////
-
- // The rotation matrices
- AliMatrix(idmat[0], 90., 90., 180., 0., 90., 0.);
- AliMatrix(idmat[1], 90., 180., 90., 270., 0., 0.);
-
- // Position of the layers in a TRD module
- f = TMath::Tan(theoc * kDegrad);
- gMC->Gspos("UT9O", 1, "UTMO", 0., f*wazpos, wazpos, 0, "ONLY");
- gMC->Gspos("UT8O", 1, "UTMO", 0., f*cozpos, cozpos, 0, "ONLY");
- gMC->Gspos("UT7O", 1, "UTMO", 0., f*fezpos, fezpos, 0, "ONLY");
- gMC->Gspos("UT6O", 1, "UTMO", 0., f*suzpos, suzpos, 0, "ONLY");
- gMC->Gspos("UT5O", 1, "UTMO", 0., f*cuzpos, cuzpos, 0, "ONLY");
- gMC->Gspos("UT4O", 1, "UTMO", 0., f*xezpos, xezpos, 0, "ONLY");
- gMC->Gspos("UT3O", 1, "UTMO", 0., f*myzpos, myzpos, 0, "ONLY");
- gMC->Gspos("UT1O", 1, "UTMO", 0., f*razpos, razpos, 0, "ONLY");
- gMC->Gspos("UT0O", 1, "UTMO", 0., f*sezpos, sezpos, 0, "ONLY");
- gMC->Gspos("UT2O", 1, "UT1O", 0., f*pezpos, pezpos, 0, "ONLY");
-
- gMC->Gspos("UT9N", 1, "UTMN", 0., 0., wazpos, 0, "ONLY");
- gMC->Gspos("UT8N", 1, "UTMN", 0., 0., cozpos, 0, "ONLY");
- gMC->Gspos("UT7N", 1, "UTMN", 0., 0., fezpos, 0, "ONLY");
- gMC->Gspos("UT6N", 1, "UTMN", 0., 0., suzpos, 0, "ONLY");
- gMC->Gspos("UT5N", 1, "UTMN", 0., 0., cuzpos, 0, "ONLY");
- gMC->Gspos("UT4N", 1, "UTMN", 0., 0., xezpos, 0, "ONLY");
- gMC->Gspos("UT3N", 1, "UTMN", 0., 0., myzpos, 0, "ONLY");
- gMC->Gspos("UT1N", 1, "UTMN", 0., 0., razpos, 0, "ONLY");
- gMC->Gspos("UT0N", 1, "UTMN", 0., 0., sezpos, 0, "ONLY");
- gMC->Gspos("UT2N", 1, "UT1N", 0., 0., pezpos, 0, "ONLY");
-
- gMC->Gspos("UT9I", 1, "UTMI", 0., 0., wazpos, 0, "ONLY");
- gMC->Gspos("UT8I", 1, "UTMI", 0., 0., cozpos, 0, "ONLY");
- gMC->Gspos("UT7I", 1, "UTMI", 0., 0., fezpos, 0, "ONLY");
- gMC->Gspos("UT6I", 1, "UTMI", 0., 0., suzpos, 0, "ONLY");
- gMC->Gspos("UT5I", 1, "UTMI", 0., 0., cuzpos, 0, "ONLY");
- gMC->Gspos("UT4I", 1, "UTMI", 0., 0., xezpos, 0, "ONLY");
- gMC->Gspos("UT3I", 1, "UTMI", 0., 0., myzpos, 0, "ONLY");
- gMC->Gspos("UT1I", 1, "UTMI", 0., 0., razpos, 0, "ONLY");
- gMC->Gspos("UT0I", 1, "UTMI", 0., 0., sezpos, 0, "ONLY");
- gMC->Gspos("UT2I", 1, "UT1I", 0., 0., pezpos, 0, "ONLY");
-
- // Position of the inner part of the chambers
- xpos = 0.;
- ypos = 0.;
- zpos = 0.;
- gMC->Gspos("UTII", 1, "UTCI", xpos, ypos, zpos, 0, "ONLY");
- gMC->Gspos("UTIN", 1, "UTCN", xpos, ypos, zpos, 0, "ONLY");
- gMC->Gspos("UTIO", 1, "UTCO", xpos, ypos, zpos, 0, "ONLY");
-
- // Position of the chambers in the support frame
- xpos = 0.;
- ypos = ((zmax1 + zmax2) / 2 + zlenn + zleni / 2) / 2;
- zpos = 0.;
- gMC->Gspos("UTCO", 1, "UTRI", xpos, ypos, zpos, idmat[1], "ONLY");
- gMC->Gspos("UTCO", 2, "UTRI", xpos,-ypos, zpos, 0 , "ONLY");
- xpos = 0.;
- ypos = (zlenn + zleni) / 2;
- zpos = 0.;
- gMC->Gspos("UTCN", 1, "UTRI", xpos, ypos, zpos, 0 , "ONLY");
- gMC->Gspos("UTCN", 2, "UTRI", xpos,-ypos, zpos, 0 , "ONLY");
- xpos = 0.;
- ypos = 0.;
- zpos = 0.;
- gMC->Gspos("UTCI", 1, "UTRI", xpos, ypos, zpos, 0 , "ONLY");
-
- // Position of the inner part of the detector frame
- xpos = (rmax + rmin) / 2;
- ypos = 0.;
- zpos = 0.;
- gMC->Gspos("UTRI", 1, "UTRS", xpos, ypos, zpos, idmat[0], "ONLY");
-
- // Position of the TRD mother volume in the ALICE experiment
- xpos = 0.;
- ypos = 0.;
- zpos = 0.;
- gMC->Gspos("TRD ", 1, "ALIC", xpos, ypos, zpos, 0, "ONLY");
+ Float_t xpos, ypos, zpos;
-}
+ // Check that FRAME is there otherwise we have no place where to put the TRD
+ AliModule* FRAME = gAlice->GetModule("FRAME");
+ if (!FRAME) return;
-//_____________________________________________________________________________
-void AliTRDv0::DrawModule()
-{
-
- //
- // Draw a shaded view of the Transition Radiation Detector version 0
- //
+ // Define the chambers
+ AliTRD::CreateGeometry();
- // Set everything unseen
- gMC->Gsatt("*", "seen", -1);
- //
- // Set ALIC mother transparent
- gMC->Gsatt("ALIC","SEEN",0);
- //
- // Set the volumes visible
- gMC->Gsatt("TRD" ,"SEEN",0);
- gMC->Gsatt("UTRS","SEEN",0);
- gMC->Gsatt("UTRI","SEEN",0);
- gMC->Gsatt("UTCO","SEEN",0);
- gMC->Gsatt("UTIO","SEEN",0);
- gMC->Gsatt("UTMO","SEEN",0);
- gMC->Gsatt("UTCN","SEEN",0);
- gMC->Gsatt("UTIN","SEEN",0);
- gMC->Gsatt("UTMN","SEEN",0);
- gMC->Gsatt("UTCI","SEEN",0);
- gMC->Gsatt("UTII","SEEN",0);
- gMC->Gsatt("UTMI","SEEN",0);
- gMC->Gsatt("UT1O","SEEN",1);
- gMC->Gsatt("UT4O","SEEN",1);
- gMC->Gsatt("UT1N","SEEN",1);
- gMC->Gsatt("UT4N","SEEN",1);
- gMC->Gsatt("UT1I","SEEN",1);
- gMC->Gsatt("UT4I","SEEN",1);
- //
- gMC->Gdopt("hide", "on");
- gMC->Gdopt("shad", "on");
- gMC->Gsatt("*", "fill", 7);
- gMC->SetClipBox(".");
- gMC->SetClipBox("*", 0, 2000, -2000, 2000, -2000, 2000);
- gMC->DefaultRange();
- gMC->Gdraw("alic", 40, 30, 0, 12, 9.4, .021, .021);
- gMC->Gdhead(1111, "Transition Radiation Detector Version 0");
- gMC->Gdman(18, 4, "MAN");
+ // Position the the TRD-sectors in all TRD-volumes in the spaceframe
+ xpos = 0.;
+ ypos = 0.;
+ zpos = 0.;
+ gMC->Gspos("TRD ",1,"BTR1",xpos,ypos,zpos,0,"ONLY");
+ gMC->Gspos("TRD ",2,"BTR2",xpos,ypos,zpos,0,"ONLY");
+ gMC->Gspos("TRD ",3,"BTR3",xpos,ypos,zpos,0,"ONLY");
}
//
// Create materials for the Transition Radiation Detector
//
+
AliTRD::CreateMaterials();
+
}
//_____________________________________________________________________________
//
// Initialise Transition Radiation Detector after geometry is built
//
+
AliTRD::Init();
- //
- // Retrieve the numeric identifier of the sensitive volumes (gas volume)
- fIdSens1 = gMC->VolId("UT4I");
- fIdSens2 = gMC->VolId("UT4N");
- fIdSens3 = gMC->VolId("UT4O");
+
+ for (Int_t i = 0; i < 80; i++) printf("*");
+ printf("\n");
+
+ // Identifier of the sensitive volume (amplification region)
+ fIdSens = gMC->VolId("UL06");
+
+ // Identifier of the TRD-spaceframe volumina
+ fIdSpace1 = gMC->VolId("B028");
+ fIdSpace2 = gMC->VolId("B029");
+ fIdSpace3 = gMC->VolId("B030");
+
+ // Identifier of the TRD-driftchambers
+ fIdChamber1 = gMC->VolId("UCIO");
+ fIdChamber2 = gMC->VolId("UCIM");
+ fIdChamber3 = gMC->VolId("UCII");
+
}
//_____________________________________________________________________________
{
//
// Procedure called at every step in the TRD
+ // Fast simulator. If switched on, a hit is produced when a track
+ // crosses the border between amplification region and pad plane.
//
- Int_t vol[3];
- Int_t icopy, idSens, icSens, i;
+ Int_t vol[3];
+ Int_t iIdSens, icSens;
+ Int_t iIdSpace, icSpace;
+ Int_t iIdChamber, icChamber;
+
+ Int_t secMap1[10] = { 3, 7, 8, 9, 10, 11, 2, 1, 18, 17 };
+ Int_t secMap2[ 5] = { 16, 15, 14, 13, 12 };
+ Int_t secMap3[ 3] = { 5, 6, 4 };
+
+ Float_t hits[4];
- Float_t hits[4];
TLorentzVector p;
+ TClonesArray &lhits = *fHits;
- TClonesArray &lhits = *fHits;
+ // Writing out hits enabled?
+ if (!(fHitsOn)) return;
// Use only charged tracks and count them only once per volume
- if (gMC->TrackCharge() && gMC->IsTrackExiting()) {
+ if (gMC->TrackCharge() &&
+ gMC->IsTrackExiting()) {
// Check on sensitive volume
- idSens = gMC->CurrentVolID(icSens);
- if ((idSens == fIdSens1) ||
- (idSens == fIdSens2) ||
- (idSens == fIdSens3)) {
-
+ iIdSens = gMC->CurrentVolID(icSens);
+ if (iIdSens == fIdSens) {
+
+ gMC->TrackPosition(p);
+ for (Int_t i = 0; i < 3; i++) hits[i] = p[i];
+ // No charge created
+ hits[3] = 0;
+
+ iIdSpace = gMC->CurrentVolOffID(4,icSpace );
+ iIdChamber = gMC->CurrentVolOffID(1,icChamber);
+
// The sector number
- gMC->CurrentVolOffID(5,icopy);
- vol[0] = icopy;
-
+ if (iIdSpace == fIdSpace1)
+ vol[0] = secMap1[icSpace-1];
+ else if (iIdSpace == fIdSpace2)
+ vol[0] = secMap2[icSpace-1];
+ else if (iIdSpace == fIdSpace3)
+ vol[0] = secMap3[icSpace-1];
+
// The chamber number
// 1: outer left
- // 2: neighbouring left
+ // 2: middle left
// 3: inner
- // 4: neighbouring right
+ // 4: middle right
// 5: outer right
- gMC->CurrentVolOffID(3,icopy);
- if (idSens == fIdSens3)
- vol[1] = 4 * icopy - 3;
- else if (idSens == fIdSens2)
- vol[1] = 2 * icopy;
- else
+ if (iIdChamber == fIdChamber1)
+ vol[1] = (hits[2] < 0 ? 1 : 5);
+ else if (iIdChamber == fIdChamber2)
+ vol[1] = (hits[2] < 0 ? 2 : 4);
+ else if (iIdChamber == fIdChamber3)
vol[1] = 3;
-
+
// The plane number
- gMC->CurrentVolOffID(1,icopy);
- vol[2] = icopy;
-
- if (fSensSelect) {
- Int_t addthishit = 1;
- if ((fSensPlane) && (vol[2] != fSensPlane )) addthishit = 0;
- if ((fSensChamber) && (vol[1] != fSensChamber)) addthishit = 0;
- if ((fSensSector) && (vol[0] != fSensSector )) addthishit = 0;
- if (addthishit) {
- gMC->TrackPosition(p);
- for(i=0;i<3;++i) hits[i]=p[i];
- hits[3] = 0;
- new(lhits[fNhits++]) AliTRDhit(fIshunt,gAlice->CurrentTrack(),vol,hits);
- }
- }
- else {
- gMC->TrackPosition(p);
- for(i=0;i<3;++i) hits[i]=p[i];
- hits[3] = 0;
- new(lhits[fNhits++]) AliTRDhit(fIshunt,gAlice->CurrentTrack(),vol,hits);
- }
+ vol[2] = icChamber - TMath::Nint((Float_t) (icChamber / 7)) * 6;
+
+ new(lhits[fNhits++]) AliTRDhit(fIshunt,gAlice->CurrentTrack(),vol,hits);
}
virtual ~AliTRDv0() {}
virtual void CreateGeometry();
virtual void CreateMaterials();
- virtual Int_t IsVersion() const {return 0;}
+ virtual Int_t IsVersion() const { return 0; };
+ virtual void SetHits(Int_t ihit = 1) { fHitsOn = ihit; };
virtual void StepManager();
virtual void Init();
- virtual void DrawModule();
protected:
- Int_t fIdSens1; // 1st sensitive volume identifier
- Int_t fIdSens2; // 2nd sensitive volume identifier
- Int_t fIdSens3; // 3rd sensitive volume identifier
-
+ Int_t fIdSens; // Sensitive volume identifier
+
+ Int_t fIdSpace1; // Spaceframe volume identifier
+ Int_t fIdSpace2; //
+ Int_t fIdSpace3; //
+
+ Int_t fIdChamber1; // Driftchamber volume identifier
+ Int_t fIdChamber2; //
+ Int_t fIdChamber3; //
+
+ Int_t fHitsOn; // Used to switch hits on
+
ClassDef(AliTRDv0,1) // Transition Radiation Detector version 0
+
};
#endif
//
// Standard constructor for the Transition Radiation Detector version 1
//
- fIdSens1 = fIdSens2 = fIdSens3 = 0;
+
+ fIdSens = 0;
+ fHitsOn = 0;
+
+ fIdSpace1 = 0;
+ fIdSpace2 = 0;
+ fIdSpace3 = 0;
+
+ fIdChamber1 = 0;
+ fIdChamber2 = 0;
+ fIdChamber3 = 0;
+
}
//_____________________________________________________________________________
void AliTRDv1::CreateGeometry()
{
//
- // Create the geometry for the Transition Radiation Detector version 1
- // --- The coarse geometry of the TRD, that can be used for background
- // studies. This version leaves the space in front of the PHOS and
- // HMPID empty.
- // --- Author : Christoph Blume (GSI) 18/5/99
+ // Create the GEANT geometry for the Transition Radiation Detector - Version 1
+ // This version covers only part of the azimuth.
//
- // --- Volume names :
- // TRD --> Mother TRD volume (Air)
- // UTRD --> The detector arms (Al)
- // UTRS --> Sectors of the sub-detector (Al)
- // UTRI --> Inner part of the detector frame (Air)
- // UTCI(N,O) --> Frames of the inner, neighbouring and outer chambers (C)
- // UTII(N,O) --> Inner part of the chambers (Air)
- // UTMI(N,O) --> Modules in the chambers (Air)
- // UT0I(N,O) --> Radiator seal (G10)
- // UT1I(N,O) --> Radiator (CO2)
- // UT2I(N,O) --> Polyethylene of radiator (PE)
- // UT3I(N,O) --> Entrance window (Mylar)
- // UT4I(N,O) --> Gas volume (sensitive) (Xe/Isobutane)
- // UT5I(N,O) --> Pad plane (Cu)
- // UT6I(N,O) --> Support structure (G10)
- // UT7I(N,O) --> FEE + signal lines (Cu)
- // UT8I(N,O) --> Polyethylene of cooling device (PE)
- // UT9I(N,O) --> Cooling water (Water)
- //
- //Begin_Html
- /*
- <img src="picts/AliTRDv1.gif">
- */
- //End_Html
- //Begin_Html
- /*
- <img src="picts/AliTRDv1Tree.gif">
- */
- //End_Html
-
- Float_t xpos, ypos, zpos, f;
- Int_t idmat[5];
-
- const Int_t nparmo = 10;
- const Int_t nparar = 10;
- const Int_t nparfr = 4;
- const Int_t nparic = 4;
- const Int_t nparnc = 4;
- const Int_t nparoc = 11;
-
- Float_t par_mo[nparmo];
- Float_t par_ar[nparar];
- Float_t par_fr[nparfr];
- Float_t par_ic[nparic];
- Float_t par_nc[nparnc];
- Float_t par_oc[nparoc];
-
- Int_t *idtmed = fIdtmed->GetArray()-1299;
-
- //////////////////////////////////////////////////////////////////////////
- // Definition of Volumes
- //////////////////////////////////////////////////////////////////////////
-
- // Definition of the mother volume for the TRD (Air)
- par_mo[0] = 0.;
- par_mo[1] = 360.;
- par_mo[2] = nsect;
- par_mo[3] = 2.;
- par_mo[4] = -zmax1;
- par_mo[5] = rmin;
- par_mo[6] = rmax;
- par_mo[7] = zmax1;
- par_mo[8] = rmin;
- par_mo[9] = rmax;
- gMC->Gsvolu("TRD ", "PGON", idtmed[1302-1], par_mo, nparmo);
-
- Float_t phisec = 360. / nsect;
- // Definition of the two detector arms (Al)
- par_ar[0] = 120.;
- par_ar[1] = narmsec * phisec;
- par_ar[2] = narmsec;
- par_ar[3] = 2.;
- par_ar[4] = -zmax1;
- par_ar[5] = rmin;
- par_ar[6] = rmax;
- par_ar[7] = zmax1;
- par_ar[8] = rmin;
- par_ar[9] = rmax;
- gMC->Gsvolu("UTRD", "PGON", idtmed[1301-1], par_ar, nparar);
- gMC->Gsdvn("UTRS", "UTRD", narmsec, 2);
-
- // The minimal width of a sector in rphi-direction
- Float_t widmi = rmin * TMath::Tan(kPI/nsect);
- // The maximal width of a sector in rphi-direction
- Float_t widma = rmax * TMath::Tan(kPI/nsect);
- // The total thickness of the spaceframe (Al + Air)
- Float_t frame = widmi - (widpl1 / 2);
-
- // Definition of the inner part of the detector frame (Air)
- par_fr[0] = widmi - alframe / 2;
- par_fr[1] = widma - alframe / 2;
- par_fr[2] = zmax1;
- par_fr[3] = (rmax - rmin) / 2;
- gMC->Gsvolu("UTRI", "TRD1", idtmed[1302-1], par_fr, nparfr);
-
- //
- // The outer chambers
+ // Author: Christoph Blume (C.Blume@gsi.de) 20/07/99
//
- // Calculate some shape-parameter
- Float_t tanzr = (zmax1 - zmax2) / (rmax - rmin);
- Float_t theoc = -kRaddeg * TMath::ATan(tanzr / 2);
-
- // The carbon frame (C)
- par_oc[0] = (rmax - rmin) / 2;
- par_oc[1] = theoc;
- par_oc[2] = 90.;
- par_oc[3] = (zmax2 - zlenn - zleni/2) / 2;
- par_oc[4] = widmi - frame;
- par_oc[5] = widmi - frame;
- par_oc[6] = 0.;
- par_oc[7] = (zmax1 - zlenn - zleni/2) / 2;
- par_oc[8] = widma - frame;
- par_oc[9] = widma - frame;
- par_oc[10] = 0.;
- gMC->Gsvolu("UTCO", "TRAP", idtmed[1307-1], par_oc, nparoc);
-
- // The inner part (Air)
- par_oc[3] -= ccframe;
- par_oc[4] -= ccframe;
- par_oc[5] -= ccframe;
- par_oc[7] -= ccframe;
- par_oc[8] -= ccframe;
- par_oc[9] -= ccframe;
- gMC->Gsvolu("UTIO", "TRAP", idtmed[1302-1], par_oc, nparoc);
-
- // Definition of the six modules within each chamber
- gMC->Gsdvn("UTMO", "UTIO", nmodul, 3);
-
- // Definition of the layers of each chamber
- par_oc[1] = theoc;
- par_oc[2] = 90.;
- par_oc[3] = -1.;
- par_oc[4] = -1.;
- par_oc[5] = -1.;
- par_oc[6] = 0.;
- par_oc[7] = -1.;
- par_oc[8] = -1.;
- par_oc[9] = -1.;
- par_oc[10] = 0.;
- // G10 layer (radiator layer)
- par_oc[0] = sethick / 2;
- gMC->Gsvolu("UT0O", "TRAP", idtmed[1313-1], par_oc, nparoc);
- // CO2 layer (radiator)
- par_oc[0] = rathick / 2;
- gMC->Gsvolu("UT1O", "TRAP", idtmed[1312-1], par_oc, nparoc);
- // PE layer (radiator)
- par_oc[0] = pethick / 2;
- gMC->Gsvolu("UT2O", "TRAP", idtmed[1303-1], par_oc, nparoc);
- // Mylar layer (entrance window + HV cathode)
- par_oc[0] = mythick / 2;
- gMC->Gsvolu("UT3O", "TRAP", idtmed[1308-1], par_oc, nparoc);
- // Xe/Isobutane layer (gasvolume)
- par_oc[0] = xethick / 2;
- gMC->Gsvolu("UT4O", "TRAP", idtmed[1309-1], par_oc, nparoc);
- // Cu layer (pad plane)
- par_oc[0] = cuthick / 2;
- gMC->Gsvolu("UT5O", "TRAP", idtmed[1305-1], par_oc, nparoc);
- // G10 layer (support structure)
- par_oc[0] = suthick / 2;
- gMC->Gsvolu("UT6O", "TRAP", idtmed[1313-1], par_oc, nparoc);
- // Cu layer (FEE + signal lines)
- par_oc[0] = fethick / 2;
- gMC->Gsvolu("UT7O", "TRAP", idtmed[1305-1], par_oc, nparoc);
- // PE layer (cooling devices)
- par_oc[0] = cothick / 2;
- gMC->Gsvolu("UT8O", "TRAP", idtmed[1303-1], par_oc, nparoc);
- // Water layer (cooling)
- par_oc[0] = wathick / 2;
- gMC->Gsvolu("UT9O", "TRAP", idtmed[1314-1], par_oc, nparoc);
+ Float_t xpos, ypos, zpos;
- //
- // The neighbouring chambers
- //
+ // Check that FRAME is there otherwise we have no place where to put the TRD
+ AliModule* FRAME = gAlice->GetModule("FRAME");
+ if (!FRAME) return;
- // The carbon frame (C)
- par_nc[0] = widmi - frame;
- par_nc[1] = widma - frame;
- par_nc[2] = zlenn / 2;
- par_nc[3] = (rmax - rmin) / 2;
- gMC->Gsvolu("UTCN", "TRD1", idtmed[1307-1], par_nc, nparnc);
-
- // The inner part (Air)
- par_nc[0] -= ccframe;
- par_nc[1] -= ccframe;
- par_nc[2] -= ccframe;
- gMC->Gsvolu("UTIN", "TRD1", idtmed[1302-1], par_nc, nparnc);
-
- // Definition of the six modules within each outer chamber
- gMC->Gsdvn("UTMN", "UTIN", nmodul, 3);
-
- // Definition of the layers of each chamber
- par_nc[0] = -1.;
- par_nc[1] = -1.;
- par_nc[2] = -1.;
- // G10 layer (radiator layer)
- par_nc[3] = sethick / 2;
- gMC->Gsvolu("UT0N", "TRD1", idtmed[1313-1], par_nc, nparnc);
- // CO2 layer (radiator)
- par_nc[3] = rathick / 2;
- gMC->Gsvolu("UT1N", "TRD1", idtmed[1312-1], par_nc, nparnc);
- // PE layer (radiator)
- par_nc[3] = pethick / 2;
- gMC->Gsvolu("UT2N", "TRD1", idtmed[1303-1], par_nc, nparnc);
- // Mylar layer (entrance window + HV cathode)
- par_nc[3] = mythick / 2;
- gMC->Gsvolu("UT3N", "TRD1", idtmed[1308-1], par_nc, nparnc);
- // Xe/Isobutane layer (gasvolume)
- par_nc[3] = xethick / 2;
- gMC->Gsvolu("UT4N", "TRD1", idtmed[1309-1], par_nc, nparnc);
- // Cu layer (pad plane)
- par_nc[3] = cuthick / 2;
- gMC->Gsvolu("UT5N", "TRD1", idtmed[1305-1], par_nc, nparnc);
- // G10 layer (support structure)
- par_nc[3] = suthick / 2;
- gMC->Gsvolu("UT6N", "TRD1", idtmed[1313-1], par_nc, nparnc);
- // Cu layer (FEE + signal lines)
- par_nc[3] = fethick / 2;
- gMC->Gsvolu("UT7N", "TRD1", idtmed[1305-1], par_nc, nparnc);
- // PE layer (cooling devices)
- par_nc[3] = cothick / 2;
- gMC->Gsvolu("UT8N", "TRD1", idtmed[1303-1], par_nc, nparnc);
- // Water layer (cooling)
- par_nc[3] = wathick / 2;
- gMC->Gsvolu("UT9N", "TRD1", idtmed[1314-1], par_nc, nparnc);
+ // Define the chambers
+ AliTRD::CreateGeometry();
- //
- // The inner chamber
- //
-
- // The carbon frame (C)
- par_ic[0] = widmi - frame;
- par_ic[1] = widma - frame;
- par_ic[2] = zleni / 2;
- par_ic[3] = (rmax - rmin) / 2;
- gMC->Gsvolu("UTCI", "TRD1", idtmed[1307-1], par_ic, nparic);
-
- // The inner part (Air)
- par_ic[0] -= ccframe;
- par_ic[1] -= ccframe;
- par_ic[2] -= ccframe;
- gMC->Gsvolu("UTII", "TRD1", idtmed[1302-1], par_ic, nparic);
-
- // Definition of the six modules within each outer chamber
- gMC->Gsdvn("UTMI", "UTII", nmodul, 3);
-
- // Definition of the layers of each inner chamber
- par_ic[0] = -1.;
- par_ic[1] = -1.;
- par_ic[2] = -1.;
- // G10 layer (radiator layer)
- par_ic[3] = sethick / 2;
- gMC->Gsvolu("UT0I", "TRD1", idtmed[1313-1], par_ic, nparic);
- // CO2 layer (radiator)
- par_ic[3] = rathick / 2;
- gMC->Gsvolu("UT1I", "TRD1", idtmed[1312-1], par_ic, nparic);
- // PE layer (radiator)
- par_ic[3] = pethick / 2;
- gMC->Gsvolu("UT2I", "TRD1", idtmed[1303-1], par_ic, nparic);
- // Mylar layer (entrance window + HV cathode)
- par_ic[3] = mythick / 2;
- gMC->Gsvolu("UT3I", "TRD1", idtmed[1308-1], par_ic, nparic);
- // Xe/Isobutane layer (gasvolume)
- par_ic[3] = xethick / 2;
- gMC->Gsvolu("UT4I", "TRD1", idtmed[1309-1], par_ic, nparic);
- // Cu layer (pad plane)
- par_ic[3] = cuthick / 2;
- gMC->Gsvolu("UT5I", "TRD1", idtmed[1305-1], par_ic, nparic);
- // G10 layer (support structure)
- par_ic[3] = suthick / 2;
- gMC->Gsvolu("UT6I", "TRD1", idtmed[1313-1], par_ic, nparic);
- // Cu layer (FEE + signal lines)
- par_ic[3] = fethick / 2;
- gMC->Gsvolu("UT7I", "TRD1", idtmed[1305-1], par_ic, nparic);
- // PE layer (cooling devices)
- par_ic[3] = cothick / 2;
- gMC->Gsvolu("UT8I", "TRD1", idtmed[1303-1], par_ic, nparic);
- // Water layer (cooling)
- par_ic[3] = wathick / 2;
- gMC->Gsvolu("UT9I", "TRD1", idtmed[1314-1], par_ic, nparic);
-
- //////////////////////////////////////////////////////////////////////////
- // Positioning of Volumes
- //////////////////////////////////////////////////////////////////////////
-
- // The rotation matrices
- AliMatrix(idmat[0], 90., 180., 90., 90., 0., 0.);
- AliMatrix(idmat[1], 90., 90., 180., 0., 90., 0.);
- AliMatrix(idmat[2], 90., 180., 90., 270., 0., 0.);
-
- // Position of the layers in a TRD module
- f = TMath::Tan(theoc * kDegrad);
- gMC->Gspos("UT9O", 1, "UTMO", 0., f*wazpos, wazpos, 0, "ONLY");
- gMC->Gspos("UT8O", 1, "UTMO", 0., f*cozpos, cozpos, 0, "ONLY");
- gMC->Gspos("UT7O", 1, "UTMO", 0., f*fezpos, fezpos, 0, "ONLY");
- gMC->Gspos("UT6O", 1, "UTMO", 0., f*suzpos, suzpos, 0, "ONLY");
- gMC->Gspos("UT5O", 1, "UTMO", 0., f*cuzpos, cuzpos, 0, "ONLY");
- gMC->Gspos("UT4O", 1, "UTMO", 0., f*xezpos, xezpos, 0, "ONLY");
- gMC->Gspos("UT3O", 1, "UTMO", 0., f*myzpos, myzpos, 0, "ONLY");
- gMC->Gspos("UT1O", 1, "UTMO", 0., f*razpos, razpos, 0, "ONLY");
- gMC->Gspos("UT0O", 1, "UTMO", 0., f*sezpos, sezpos, 0, "ONLY");
- gMC->Gspos("UT2O", 1, "UT1O", 0., f*pezpos, pezpos, 0, "ONLY");
-
- gMC->Gspos("UT9N", 1, "UTMN", 0., 0., wazpos, 0, "ONLY");
- gMC->Gspos("UT8N", 1, "UTMN", 0., 0., cozpos, 0, "ONLY");
- gMC->Gspos("UT7N", 1, "UTMN", 0., 0., fezpos, 0, "ONLY");
- gMC->Gspos("UT6N", 1, "UTMN", 0., 0., suzpos, 0, "ONLY");
- gMC->Gspos("UT5N", 1, "UTMN", 0., 0., cuzpos, 0, "ONLY");
- gMC->Gspos("UT4N", 1, "UTMN", 0., 0., xezpos, 0, "ONLY");
- gMC->Gspos("UT3N", 1, "UTMN", 0., 0., myzpos, 0, "ONLY");
- gMC->Gspos("UT1N", 1, "UTMN", 0., 0., razpos, 0, "ONLY");
- gMC->Gspos("UT0N", 1, "UTMN", 0., 0., sezpos, 0, "ONLY");
- gMC->Gspos("UT2N", 1, "UT1N", 0., 0., pezpos, 0, "ONLY");
-
- gMC->Gspos("UT9I", 1, "UTMI", 0., 0., wazpos, 0, "ONLY");
- gMC->Gspos("UT8I", 1, "UTMI", 0., 0., cozpos, 0, "ONLY");
- gMC->Gspos("UT7I", 1, "UTMI", 0., 0., fezpos, 0, "ONLY");
- gMC->Gspos("UT6I", 1, "UTMI", 0., 0., suzpos, 0, "ONLY");
- gMC->Gspos("UT5I", 1, "UTMI", 0., 0., cuzpos, 0, "ONLY");
- gMC->Gspos("UT4I", 1, "UTMI", 0., 0., xezpos, 0, "ONLY");
- gMC->Gspos("UT3I", 1, "UTMI", 0., 0., myzpos, 0, "ONLY");
- gMC->Gspos("UT1I", 1, "UTMI", 0., 0., razpos, 0, "ONLY");
- gMC->Gspos("UT0I", 1, "UTMI", 0., 0., sezpos, 0, "ONLY");
- gMC->Gspos("UT2I", 1, "UT1I", 0., 0., pezpos, 0, "ONLY");
-
- // Position of the inner part of the chambers
- xpos = 0.;
- ypos = 0.;
- zpos = 0.;
- gMC->Gspos("UTII", 1, "UTCI", xpos, ypos, zpos, 0, "ONLY");
- gMC->Gspos("UTIN", 1, "UTCN", xpos, ypos, zpos, 0, "ONLY");
- gMC->Gspos("UTIO", 1, "UTCO", xpos, ypos, zpos, 0, "ONLY");
-
- // Position of the chambers in the support frame
- xpos = 0.;
- ypos = ((zmax1 + zmax2) / 2 + zlenn + zleni / 2) / 2;
- zpos = 0.;
- gMC->Gspos("UTCO", 1, "UTRI", xpos, ypos, zpos, idmat[2], "ONLY");
- gMC->Gspos("UTCO", 2, "UTRI", xpos,-ypos, zpos, 0 , "ONLY");
- xpos = 0.;
- ypos = (zlenn + zleni) / 2;
- zpos = 0.;
- gMC->Gspos("UTCN", 1, "UTRI", xpos, ypos, zpos, 0 , "ONLY");
- gMC->Gspos("UTCN", 2, "UTRI", xpos,-ypos, zpos, 0 , "ONLY");
- xpos = 0.;
- ypos = 0.;
- zpos = 0.;
- gMC->Gspos("UTCI", 1, "UTRI", xpos, ypos, zpos, 0 , "ONLY");
-
- // Position of the inner part of the detector frame
- xpos = (rmax + rmin) / 2;
- ypos = 0.;
- zpos = 0.;
- gMC->Gspos("UTRI", 1, "UTRS", xpos, ypos, zpos, idmat[1], "ONLY");
-
- // Position of the two arms of the detector
- xpos = 0.;
- ypos = 0.;
- zpos = 0.;
- gMC->Gspos("UTRD", 1, "TRD ", xpos, ypos, zpos, 0, "ONLY");
- gMC->Gspos("UTRD", 2, "TRD ", xpos, ypos, zpos, idmat[0], "ONLY");
-
- // Position of TRD mother volume in ALICE experiment
- xpos = 0.;
- ypos = 0.;
- zpos = 0.;
- gMC->Gspos("TRD ", 1, "ALIC", xpos, ypos, zpos, 0, "ONLY");
-
-}
-
-//_____________________________________________________________________________
-void AliTRDv1::DrawModule()
-{
- //
- // Draw a shaded view of the Transition Radiation Detector version 1
- //
+ // Position the the TRD-sectors only in one TRD-volume in the spaceframe
+ xpos = 0.;
+ ypos = 0.;
+ zpos = 0.;
+ gMC->Gspos("TRD ",1,"BTR1",xpos,ypos,zpos,0,"ONLY");
- // Set everything unseen
- gMC->Gsatt("*", "seen", -1);
- //
- // Set ALIC mother transparent
- gMC->Gsatt("ALIC","SEEN",0);
- //
- // Set the volumes visible
- gMC->Gsatt("TRD" ,"SEEN",0);
- gMC->Gsatt("UTRD","SEEN",0);
- gMC->Gsatt("UTRS","SEEN",0);
- gMC->Gsatt("UTRI","SEEN",0);
- gMC->Gsatt("UTCO","SEEN",0);
- gMC->Gsatt("UTIO","SEEN",0);
- gMC->Gsatt("UTMO","SEEN",0);
- gMC->Gsatt("UTCN","SEEN",0);
- gMC->Gsatt("UTIN","SEEN",0);
- gMC->Gsatt("UTMN","SEEN",0);
- gMC->Gsatt("UTCI","SEEN",0);
- gMC->Gsatt("UTII","SEEN",0);
- gMC->Gsatt("UTMI","SEEN",0);
- gMC->Gsatt("UT1O","SEEN",1);
- gMC->Gsatt("UT4O","SEEN",1);
- gMC->Gsatt("UT1N","SEEN",1);
- gMC->Gsatt("UT4N","SEEN",1);
- gMC->Gsatt("UT1I","SEEN",1);
- gMC->Gsatt("UT4I","SEEN",1);
- //
- gMC->Gdopt("hide", "on");
- gMC->Gdopt("shad", "on");
- gMC->Gsatt("*", "fill", 7);
- gMC->SetClipBox(".");
- gMC->SetClipBox("*", 0, 2000, -2000, 2000, -2000, 2000);
- gMC->DefaultRange();
- gMC->Gdraw("alic", 40, 30, 0, 12, 9.4, .021, .021);
- gMC->Gdhead(1111, "Transition Radiation Detector Version 1");
- gMC->Gdman(18, 4, "MAN");
}
//_____________________________________________________________________________
//
// Create materials for the Transition Radiation Detector version 1
//
+
AliTRD::CreateMaterials();
+
}
//_____________________________________________________________________________
//
// Initialise the Transition Radiation Detector after the geometry is built
//
+
AliTRD::Init();
- // Retrieve the numeric identifier of the sensitive volumes (gas volume)
- fIdSens1 = gMC->VolId("UT4I");
- fIdSens2 = gMC->VolId("UT4N");
- fIdSens3 = gMC->VolId("UT4O");
+
+ for (Int_t i = 0; i < 80; i++) printf("*");
+ printf("\n");
+
+ // Identifier of the sensitive volume (amplification region)
+ fIdSens = gMC->VolId("UL06");
+
+ // Identifier of the TRD-spaceframe volumina
+ fIdSpace1 = gMC->VolId("B028");
+ fIdSpace2 = gMC->VolId("B029");
+ fIdSpace3 = gMC->VolId("B030");
+
+ // Identifier of the TRD-driftchambers
+ fIdChamber1 = gMC->VolId("UCIO");
+ fIdChamber2 = gMC->VolId("UCIM");
+ fIdChamber3 = gMC->VolId("UCII");
+
}
//_____________________________________________________________________________
{
//
// Procedure called at every step in the TRD
+ // Fast simulator. If switched on, a hit is produced when a track
+ // crosses the border between amplification region and pad plane.
//
- Int_t vol[3];
- Int_t icopy1, icopy2;
- Int_t idSens, icSens;
- TLorentzVector pos;
-
- Float_t hits[4];
-
- TClonesArray &lhits = *fHits;
+ Int_t vol[3];
+ Int_t iIdSens, icSens;
+ Int_t iIdSpace, icSpace;
+ Int_t iIdChamber, icChamber;
+
+ Int_t secMap1[10] = { 3, 7, 8, 9, 10, 11, 2, 1, 18, 17 };
+ Int_t secMap2[ 5] = { 16, 15, 14, 13, 12 };
+ Int_t secMap3[ 3] = { 5, 6, 4 };
+
+ Float_t hits[4];
+
+ TLorentzVector p;
+ TClonesArray &lhits = *fHits;
+
+ // Writing out hits enabled?
+ if (!(fHitsOn)) return;
// Use only charged tracks and count them only once per volume
- if (gMC->TrackCharge() && gMC->IsTrackExiting()) {
+ if (gMC->TrackCharge() &&
+ gMC->IsTrackExiting()) {
// Check on sensitive volume
- idSens = gMC->CurrentVolID(icSens);
+ iIdSens = gMC->CurrentVolID(icSens);
+ if (iIdSens == fIdSens) {
+
+ gMC->TrackPosition(p);
+ for (Int_t i = 0; i < 3; i++) hits[i] = p[i];
+ // No charge created
+ hits[3] = 0;
+
+ iIdSpace = gMC->CurrentVolOffID(4,icSpace );
+ iIdChamber = gMC->CurrentVolOffID(1,icChamber);
- // Check on sensitive volume
- idSens = gMC->CurrentVolID(icSens);
- if ((idSens == fIdSens1) ||
- (idSens == fIdSens2) ||
- (idSens == fIdSens3)) {
-
// The sector number
- gMC->CurrentVolOffID(5,icopy1);
- gMC->CurrentVolOffID(6,icopy2);
- if (icopy2 == 1)
- vol[0] = icopy1;
- else
- vol[0] = 6 - icopy1 + 5;
-
+ if (iIdSpace == fIdSpace1)
+ vol[0] = secMap1[icSpace-1];
+ else if (iIdSpace == fIdSpace2)
+ vol[0] = secMap2[icSpace-1];
+ else if (iIdSpace == fIdSpace3)
+ vol[0] = secMap3[icSpace-1];
+
// The chamber number
// 1: outer left
- // 2: neighbouring left
+ // 2: middle left
// 3: inner
- // 4: neighbouring right
+ // 4: middle right
// 5: outer right
- gMC->CurrentVolOffID(3,icopy1);
- if (idSens == fIdSens3)
- vol[1] = 4 * icopy1 - 3;
- else if (idSens == fIdSens2)
- vol[1] = 2 * icopy1;
- else
+ if (iIdChamber == fIdChamber1)
+ vol[1] = (hits[2] < 0 ? 1 : 5);
+ else if (iIdChamber == fIdChamber2)
+ vol[1] = (hits[2] < 0 ? 2 : 4);
+ else if (iIdChamber == fIdChamber3)
vol[1] = 3;
-
+
// The plane number
- gMC->CurrentVolOffID(1,icopy1);
- vol[2] = icopy1;
-
- if (fSensSelect) {
- Int_t addthishit = 1;
- if ((fSensPlane) && (vol[2] != fSensPlane )) addthishit = 0;
- if ((fSensChamber) && (vol[1] != fSensChamber)) addthishit = 0;
- if ((fSensSector) && (vol[0] != fSensSector )) addthishit = 0;
- if (addthishit) {
- gMC->TrackPosition(pos);
- hits[0] = pos[0];
- hits[1] = pos[1];
- hits[2] = pos[2];
- hits[3] = 0;
- new(lhits[fNhits++]) AliTRDhit(fIshunt,gAlice->CurrentTrack(),vol,hits);
- }
- }
- else {
- gMC->TrackPosition(pos);
- hits[0] = pos[0];
- hits[1] = pos[1];
- hits[2] = pos[2];
- hits[3] = 0;
- new(lhits[fNhits++]) AliTRDhit(fIshunt,gAlice->CurrentTrack(),vol,hits);
- }
+ vol[2] = icChamber - TMath::Nint((Float_t) (icChamber / 7)) * 6;
+
+ new(lhits[fNhits++]) AliTRDhit(fIshunt,gAlice->CurrentTrack(),vol,hits);
}
- }
+ }
}
virtual void CreateGeometry();
virtual void CreateMaterials();
virtual Int_t IsVersion() const {return 1;}
+ virtual void SetHits(Int_t ihit = 1) { fHitsOn = ihit; };
virtual void StepManager();
virtual void Init();
- virtual void DrawModule();
protected:
- Int_t fIdSens1; // 1st sensitive volume identifier
- Int_t fIdSens2; // 2nd sensitive volume identifier
- Int_t fIdSens3; // 3rd sensitive volume identifier
+ Int_t fIdSens; // Sensitive volume identifier
+
+ Int_t fIdSpace1; // Spaceframe volume identifier
+ Int_t fIdSpace2; //
+ Int_t fIdSpace3; //
+
+ Int_t fIdChamber1; // Driftchamber volume identifier
+ Int_t fIdChamber2; //
+ Int_t fIdChamber3; //
+
+ Int_t fHitsOn; // Used to switch hits on
ClassDef(AliTRDv1,1) // Transition Radiation Detector version 1
+
};
#endif
//
// Standard constructor for Transition Radiation Detector version 2
//
- for (Int_t icham = 0; icham < ncham; ++icham) {
- fIdSensI[icham] = 0;
- fIdSensN[icham] = 0;
- fIdSensO[icham] = 0;
- }
- fDeltaE = NULL;
+
+ fIdSens = 0;
+
+ fIdSpace1 = 0;
+ fIdSpace2 = 0;
+ fIdSpace3 = 0;
+
+ fIdChamber1 = 0;
+ fIdChamber2 = 0;
+ fIdChamber3 = 0;
+
+ fSensSelect = 0;
+ fSensPlane = 0;
+ fSensChamber = 0;
+ fSensSector = 0;
+
+ fDeltaE = NULL;
SetBufferSize(128000);
+
}
AliTRDv2::~AliTRDv2()
{
- if (fDeltaE) delete fDeltaE;
+
+ if (fDeltaE) delete fDeltaE;
+
}
//_____________________________________________________________________________
void AliTRDv2::CreateGeometry()
{
//
- // Create geometry for the Transition Radiation Detector version 2
+ // Create the GEANT geometry for the Transition Radiation Detector - Version 2
// This version covers the full azimuth.
- // --- Author : Christoph Blume (GSI) 20/5/99
//
- // --- Volume names :
- // TRD --> Mother TRD volume (Al)
- // UTRS --> Sectors of the sub-detector (Al)
- // UTRI --> Inner part of the detector frame (Air)
- // The chambers
- // UCI1-6 --> The frame of the inner chambers (C)
- // UCN1-6 --> The frame of the neighbouring chambers (C)
- // UCO1-6 --> The frame of the outer chambers (C)
- // UII1-6 --> The inner part of the inner chambers (Air)
- // UIN1-6 --> The inner part of the neighbouring chambers (Air)
- // UIO1-6 --> The inner part of the outer chambers (Air)
- // The layers inside a chamber
- // UT0I(N,O) --> Radiator seal (G10)
- // UT1I(N,O) --> Radiator (CO2)
- // UT2I(N,O) --> Polyethylene of radiator (PE)
- // UT3I(N,O) --> Entrance window (Mylar)
- // UXI(N,O)1-6 --> Gas volume (sensitive) (Xe/Isobutane)
- // UT5I(N,O) --> Pad plane (Cu)
- // UT6I(N,O) --> Support structure (G10)
- // UT7I(N,O) --> FEE + signal lines (Cu)
- // UT8I(N,O) --> Polyethylene of cooling device (PE)
- // UT9I(N,O) --> Cooling water (Water)
+ // Author: Christoph Blume (C.Blume@gsi.de) 20/07/99
//
- //Begin_Html
- /*
- <img src="picts/AliTRDv2.gif">
- */
- //End_Html
- //Begin_Html
- /*
- <img src="picts/AliTRDv2Tree.gif">
- */
- //End_Html
-
- Float_t xpos, ypos, zpos;
- Int_t idmat[2];
-
- const Int_t nparmo = 10;
- const Int_t nparfr = 4;
- const Int_t nparch = 3;
- const Int_t nparic = 4;
- const Int_t nparnc = 4;
- const Int_t nparoc = 11;
-
- Float_t par_mo[nparmo];
- Float_t par_fr[nparfr];
- Float_t par_ch[nparch];
- Float_t par_ic[nparic];
- Float_t par_nc[nparnc];
- Float_t par_oc[nparoc];
-
- Int_t icham;
-
- Int_t *idtmed = fIdtmed->GetArray()-1299;
-
- //////////////////////////////////////////////////////////////////////////
- // Definition of Volumes
- //////////////////////////////////////////////////////////////////////////
-
- // Definition of the mother volume for the TRD (Al)
- par_mo[0] = 0.;
- par_mo[1] = 360.;
- par_mo[2] = nsect;
- par_mo[3] = 2.;
- par_mo[4] = -zmax1;
- par_mo[5] = rmin;
- par_mo[6] = rmax;
- par_mo[7] = zmax1;
- par_mo[8] = rmin;
- par_mo[9] = rmax;
- gMC->Gsvolu("TRD ", "PGON", idtmed[1301-1], par_mo, nparmo);
- gMC->Gsdvn("UTRS", "TRD ", nsect, 2);
-
- // The minimal width of a sector in rphi-direction
- Float_t widmi = rmin * TMath::Tan(kPI/nsect);
- // The maximal width of a sector in rphi-direction
- Float_t widma = rmax * TMath::Tan(kPI/nsect);
- // The total thickness of the spaceframe (Al + Air)
- Float_t frame = widmi - (widpl1 / 2);
-
- // Definition of the inner part of the detector frame (Air)
- par_fr[0] = widmi - alframe / 2.;
- par_fr[1] = widma - alframe / 2.;
- par_fr[2] = zmax1;
- par_fr[3] = (rmax - rmin) / 2;
- gMC->Gsvolu("UTRI", "TRD1", idtmed[1302-1], par_fr, nparfr);
-
- // Some parameter for the chambers
- Float_t lendifc = (zmax1 - zmax2) / nmodul;
- Float_t heightc = (rmax - rmin ) / nmodul;
- Float_t widdifc = (widma - widmi) / nmodul;
-
- // Definition of the chambers
- Char_t ctagc[5], ctagi[5];
- for (icham = 1; icham <= ncham; ++icham) {
-
- // Carbon frame of the inner chambers (C)
- par_ch[0] = widmi + (icham-1) * widdifc - frame;
- par_ch[1] = zleni / 2.;
- par_ch[2] = heightc / 2.;
- sprintf(ctagc,"UCI%1d",icham);
- gMC->Gsvolu(ctagc, "BOX ", idtmed[1307-1], par_ch, nparch);
- // Inner part of the inner chambers (Air)
- par_ch[0] -= ccframe;
- par_ch[1] -= ccframe;
- sprintf(ctagc,"UII%1d",icham);
- gMC->Gsvolu(ctagc, "BOX ", idtmed[1302-1], par_ch, nparch);
-
- // Carbon frame of the neighbouring chambers (C)
- par_ch[0] = widmi + (icham-1) * widdifc - frame;
- par_ch[1] = zlenn / 2.;
- par_ch[2] = heightc / 2.;
- sprintf(ctagc,"UCN%1d",icham);
- gMC->Gsvolu(ctagc, "BOX ", idtmed[1307-1], par_ch, nparch);
- // Inner part of the neighbouring chambers (Air)
- par_ch[0] -= ccframe;
- par_ch[1] -= ccframe;
- sprintf(ctagc,"UIN%1d",icham);
- gMC->Gsvolu(ctagc, "BOX ", idtmed[1302-1], par_ch, nparch);
-
- // Carbon frame of the outer chambers (C)
- par_ch[0] = widmi + (icham-1) * widdifc - frame;
- par_ch[1] = (icham - 6) * lendifc / 2. + zleno / 2.;
- par_ch[2] = heightc / 2.;
- sprintf(ctagc,"UCO%1d",icham);
- gMC->Gsvolu(ctagc, "BOX ", idtmed[1307-1], par_ch, nparch);
- // Inner part of the outer chambers (Air)
- par_ch[0] -= ccframe;
- par_ch[1] -= ccframe;
- sprintf(ctagc,"UIO%1d",icham);
- gMC->Gsvolu(ctagc, "BOX ", idtmed[1302-1], par_ch, nparch);
-
- }
-
- // Definition of the layers in each inner chamber
- par_ic[0] = -1.;
- par_ic[1] = -1.;
- // G10 layer (radiator layer)
- par_ic[2] = sethick / 2;
- gMC->Gsvolu("UT0I", "BOX ", idtmed[1313-1], par_ic, nparic);
- // CO2 layer (radiator)
- par_ic[2] = rathick / 2;
- gMC->Gsvolu("UT1I", "BOX ", idtmed[1312-1], par_ic, nparic);
- // PE layer (radiator)
- par_ic[2] = pethick / 2;
- gMC->Gsvolu("UT2I", "BOX ", idtmed[1303-1], par_ic, nparic);
- // Mylar layer (entrance window + HV cathode)
- par_ic[2] = mythick / 2;
- gMC->Gsvolu("UT3I", "BOX ", idtmed[1308-1], par_ic, nparic);
- // Xe/Isobutane layer (gasvolume)
- par_ic[2] = xethick / 2.;
- for (icham = 1; icham <= 6; ++icham) {
- sprintf(ctagc,"UXI%1d",icham);
- gMC->Gsvolu(ctagc, "BOX ", idtmed[1309-1], par_ic, nparic);
- }
- // Cu layer (pad plane)
- par_ic[2] = cuthick / 2;
- gMC->Gsvolu("UT5I", "BOX ", idtmed[1305-1], par_ic, nparic);
- // G10 layer (support structure)
- par_ic[2] = suthick / 2;
- gMC->Gsvolu("UT6I", "BOX ", idtmed[1313-1], par_ic, nparic);
- // Cu layer (FEE + signal lines)
- par_ic[2] = fethick / 2;
- gMC->Gsvolu("UT7I", "BOX ", idtmed[1305-1], par_ic, nparic);
- // PE layer (cooling devices)
- par_ic[2] = cothick / 2;
- gMC->Gsvolu("UT8I", "BOX ", idtmed[1303-1], par_ic, nparic);
- // Water layer (cooling)
- par_ic[2] = wathick / 2;
- gMC->Gsvolu("UT9I", "BOX ", idtmed[1314-1], par_ic, nparic);
-
- // Definition of the layers in each neighbouring chamber
- par_nc[0] = -1.;
- par_nc[1] = -1.;
- // G10 layer (radiator layer)
- par_nc[2] = sethick / 2;
- gMC->Gsvolu("UT0N", "BOX ", idtmed[1313-1], par_nc, nparnc);
- // CO2 layer (radiator)
- par_nc[2] = rathick / 2;
- gMC->Gsvolu("UT1N", "BOX ", idtmed[1312-1], par_nc, nparnc);
- // PE layer (radiator)
- par_nc[2] = pethick / 2;
- gMC->Gsvolu("UT2N", "BOX ", idtmed[1303-1], par_nc, nparnc);
- // Mylar layer (entrance window + HV cathode)
- par_nc[2] = mythick / 2;
- gMC->Gsvolu("UT3N", "BOX ", idtmed[1308-1], par_nc, nparnc);
- // Xe/Isobutane layer (gasvolume)
- par_nc[2] = xethick / 2.;
- for (icham = 1; icham <= 6; ++icham) {
- sprintf(ctagc,"UXN%1d",icham);
- gMC->Gsvolu(ctagc, "BOX ", idtmed[1309-1], par_nc, nparnc);
- }
- // Cu layer (pad plane)
- par_nc[2] = cuthick / 2;
- gMC->Gsvolu("UT5N", "BOX ", idtmed[1305-1], par_nc, nparnc);
- // G10 layer (support structure)
- par_nc[2] = suthick / 2;
- gMC->Gsvolu("UT6N", "BOX ", idtmed[1313-1], par_nc, nparnc);
- // Cu layer (FEE + signal lines)
- par_nc[2] = fethick / 2;
- gMC->Gsvolu("UT7N", "BOX ", idtmed[1305-1], par_nc, nparnc);
- // PE layer (cooling devices)
- par_nc[2] = cothick / 2;
- gMC->Gsvolu("UT8N", "BOX ", idtmed[1303-1], par_nc, nparnc);
- // Water layer (cooling)
- par_nc[2] = wathick / 2;
- gMC->Gsvolu("UT9N", "BOX ", idtmed[1314-1], par_nc, nparnc);
-
- // Definition of the layers in each outer chamber
- par_oc[0] = -1.;
- par_oc[1] = -1.;
- // G10 layer (radiator layer)
- par_oc[2] = sethick / 2;
- gMC->Gsvolu("UT0O", "BOX ", idtmed[1313-1], par_oc, nparoc);
- // CO2 layer (radiator)
- par_oc[2] = rathick / 2;
- gMC->Gsvolu("UT1O", "BOX ", idtmed[1312-1], par_oc, nparoc);
- // PE layer (radiator)
- par_oc[2] = pethick / 2;
- gMC->Gsvolu("UT2O", "BOX ", idtmed[1303-1], par_oc, nparoc);
- // Mylar layer (entrance window + HV cathode)
- par_oc[2] = mythick / 2;
- gMC->Gsvolu("UT3O", "BOX ", idtmed[1308-1], par_oc, nparoc);
- // Xe/Isobutane layer (gasvolume)
- par_oc[2] = xethick / 2.;
- for (icham = 1; icham <= 6; ++icham) {
- sprintf(ctagc,"UXO%1d",icham);
- gMC->Gsvolu(ctagc, "BOX ", idtmed[1309-1], par_oc, nparoc);
- }
- // Cu layer (pad plane)
- par_oc[2] = cuthick / 2;
- gMC->Gsvolu("UT5O", "BOX ", idtmed[1305-1], par_oc, nparoc);
- // G10 layer (support structure)
- par_oc[2] = suthick / 2;
- gMC->Gsvolu("UT6O", "BOX ", idtmed[1313-1], par_oc, nparoc);
- // Cu layer (FEE + signal lines)
- par_oc[2] = fethick / 2;
- gMC->Gsvolu("UT7O", "BOX ", idtmed[1305-1], par_oc, nparoc);
- // PE layer (cooling devices)
- par_oc[2] = cothick / 2;
- gMC->Gsvolu("UT8O", "BOX ", idtmed[1303-1], par_oc, nparoc);
- // Water layer (cooling)
- par_oc[2] = wathick / 2;
- gMC->Gsvolu("UT9O", "BOX ", idtmed[1314-1], par_oc, nparoc);
-
- //////////////////////////////////////////////////////////////////////////
- // Positioning of Volumes
- //////////////////////////////////////////////////////////////////////////
-
- // The rotation matrices
- AliMatrix(idmat[0], 90., 90., 180., 0., 90., 0.);
- AliMatrix(idmat[1], 90., 90., 0., 0., 90., 0.);
-
- // Position of the layers in a chamber
- gMC->Gspos("UT2I", 1, "UT1I", 0., 0., pezpos, 0, "ONLY");
- gMC->Gspos("UT2N", 1, "UT1N", 0., 0., pezpos, 0, "ONLY");
- gMC->Gspos("UT2O", 1, "UT1O", 0., 0., pezpos, 0, "ONLY");
- for (icham = 1; icham <= ncham; ++icham) {
- // The inner chambers
- sprintf(ctagi,"UII%1d",icham);
- sprintf(ctagc,"UXI%1d",icham);
- gMC->Gspos("UT9I", icham, ctagi, 0., 0., wazpos, 0, "ONLY");
- gMC->Gspos("UT8I", icham, ctagi, 0., 0., cozpos, 0, "ONLY");
- gMC->Gspos("UT7I", icham, ctagi, 0., 0., fezpos, 0, "ONLY");
- gMC->Gspos("UT6I", icham, ctagi, 0., 0., suzpos, 0, "ONLY");
- gMC->Gspos("UT5I", icham, ctagi, 0., 0., cuzpos, 0, "ONLY");
- gMC->Gspos(ctagc , 1, ctagi, 0., 0., xezpos, 0, "ONLY");
- gMC->Gspos("UT3I", icham, ctagi, 0., 0., myzpos, 0, "ONLY");
- gMC->Gspos("UT1I", icham, ctagi, 0., 0., razpos, 0, "ONLY");
- gMC->Gspos("UT0I", icham, ctagi, 0., 0., sezpos, 0, "ONLY");
- // The neighbouring chambers
- sprintf(ctagi,"UIN%1d",icham);
- sprintf(ctagc,"UXN%1d",icham);
- gMC->Gspos("UT9N", icham, ctagi, 0., 0., wazpos, 0, "ONLY");
- gMC->Gspos("UT8N", icham, ctagi, 0., 0., cozpos, 0, "ONLY");
- gMC->Gspos("UT7N", icham, ctagi, 0., 0., fezpos, 0, "ONLY");
- gMC->Gspos("UT6N", icham, ctagi, 0., 0., suzpos, 0, "ONLY");
- gMC->Gspos("UT5N", icham, ctagi, 0., 0., cuzpos, 0, "ONLY");
- gMC->Gspos(ctagc , 1, ctagi, 0., 0., xezpos, 0, "ONLY");
- gMC->Gspos("UT3N", icham, ctagi, 0., 0., myzpos, 0, "ONLY");
- gMC->Gspos("UT1N", icham, ctagi, 0., 0., razpos, 0, "ONLY");
- gMC->Gspos("UT0N", icham, ctagi, 0., 0., sezpos, 0, "ONLY");
- // The outer chambers
- sprintf(ctagi,"UIO%1d",icham);
- sprintf(ctagc,"UXO%1d",icham);
- gMC->Gspos("UT9O", icham, ctagi, 0., 0., wazpos, 0, "ONLY");
- gMC->Gspos("UT8O", icham, ctagi, 0., 0., cozpos, 0, "ONLY");
- gMC->Gspos("UT7O", icham, ctagi, 0., 0., fezpos, 0, "ONLY");
- gMC->Gspos("UT6O", icham, ctagi, 0., 0., suzpos, 0, "ONLY");
- gMC->Gspos("UT5O", icham, ctagi, 0., 0., cuzpos, 0, "ONLY");
- gMC->Gspos(ctagc , 1, ctagi, 0., 0., xezpos, 0, "ONLY");
- gMC->Gspos("UT3O", icham, ctagi, 0., 0., myzpos, 0, "ONLY");
- gMC->Gspos("UT1O", icham, ctagi, 0., 0., razpos, 0, "ONLY");
- gMC->Gspos("UT0O", icham, ctagi, 0., 0., sezpos, 0, "ONLY");
- }
-
- // Position of the inner part of the chambers in the carbon-frames
- for (icham = 1; icham <= ncham; ++icham) {
- xpos = 0.;
- ypos = 0.;
- zpos = 0.;
- // The inner chambers
- sprintf(ctagi,"UII%1d",icham);
- sprintf(ctagc,"UCI%1d",icham);
- gMC->Gspos(ctagi, 1, ctagc, xpos, ypos, zpos, 0, "ONLY");
- // The neighbouring chambers
- sprintf(ctagi,"UIN%1d",icham);
- sprintf(ctagc,"UCN%1d",icham);
- gMC->Gspos(ctagi, 1, ctagc, xpos, ypos, zpos, 0, "ONLY");
- // The outer chambers
- sprintf(ctagi,"UIO%1d",icham);
- sprintf(ctagc,"UCO%1d",icham);
- gMC->Gspos(ctagi, 1, ctagc, xpos, ypos, zpos, 0, "ONLY");
- }
-
- // Position of the chambers in the full TRD-setup
- for (icham = 1; icham <= ncham; ++icham) {
- // The inner chambers
- xpos = 0.;
- ypos = 0.;
- zpos = (icham-0.5) * heightc - (rmax - rmin) / 2;
- sprintf(ctagc,"UCI%1d",icham);
- gMC->Gspos(ctagc, 1, "UTRI", xpos, ypos, zpos, 0, "ONLY");
- // The neighbouring chambers
- xpos = 0.;
- ypos = (zleni + zlenn) / 2.;
- zpos = (icham-0.5) * heightc - (rmax - rmin) / 2;
- sprintf(ctagc,"UCN%1d",icham);
- gMC->Gspos(ctagc, 1, "UTRI", xpos, ypos, zpos, 0, "ONLY");
- ypos = -ypos;
- sprintf(ctagc,"UCN%1d",icham);
- gMC->Gspos(ctagc, 2, "UTRI", xpos, ypos, zpos, 0, "ONLY");
- // The outer chambers
- xpos = 0.;
- ypos = (zleni / 2. + zlenn + zmax2 + (icham-1) * lendifc) / 2.;
- zpos = (icham-0.5) * heightc - (rmax-rmin)/2;
- sprintf(ctagc,"UCO%1d",icham);
- gMC->Gspos(ctagc, 1, "UTRI", xpos, ypos, zpos, 0, "ONLY");
- ypos = -ypos;
- sprintf(ctagc,"UCO%1d",icham);
- gMC->Gspos(ctagc, 2, "UTRI", xpos, ypos, zpos, 0, "ONLY");
- }
- // Position of the inner part of the detector frame
- xpos = (rmax + rmin) / 2;
- ypos = 0.;
- zpos = 0.;
- gMC->Gspos("UTRI", 1, "UTRS", xpos, ypos, zpos, idmat[0], "ONLY");
+ Float_t xpos, ypos, zpos;
- // Position of the TRD mother volume in the ALICE experiment
- xpos = 0.;
- ypos = 0.;
- zpos = 0.;
- gMC->Gspos("TRD ", 1, "ALIC", xpos, ypos, zpos, 0, "ONLY");
+ // Check that FRAME is there otherwise we have no place where to put the TRD
+ AliModule* FRAME = gAlice->GetModule("FRAME");
+ if (!FRAME) return;
-}
+ // Define the chambers
+ AliTRD::CreateGeometry();
-//_____________________________________________________________________________
-void AliTRDv2::DrawModule()
-{
- //
- // Draw a shaded view of the Transition Radiation Detector version 1
- //
+ // Position the the TRD-sectors in all TRD-volumes in the spaceframe
+ xpos = 0.;
+ ypos = 0.;
+ zpos = 0.;
+ gMC->Gspos("TRD ",1,"BTR1",xpos,ypos,zpos,0,"ONLY");
+ gMC->Gspos("TRD ",2,"BTR2",xpos,ypos,zpos,0,"ONLY");
+ gMC->Gspos("TRD ",3,"BTR3",xpos,ypos,zpos,0,"ONLY");
- // Set everything unseen
- gMC->Gsatt("*", "seen", -1);
-
- // Set ALIC mother transparent
- gMC->Gsatt("ALIC","SEEN",0);
-
- // Set the volumes visible
- gMC->Gsatt("TRD ","SEEN",0);
- gMC->Gsatt("UTRS","SEEN",0);
- gMC->Gsatt("UTRI","SEEN",0);
- Char_t ctag[5];
- for (Int_t icham = 0; icham < ncham; ++icham) {
- sprintf(ctag,"UCI%1d",icham+1);
- gMC->Gsatt(ctag,"SEEN",0);
- sprintf(ctag,"UCN%1d",icham+1);
- gMC->Gsatt(ctag,"SEEN",0);
- sprintf(ctag,"UCO%1d",icham+1);
- gMC->Gsatt(ctag,"SEEN",0);
- sprintf(ctag,"UII%1d",icham+1);
- gMC->Gsatt(ctag,"SEEN",0);
- sprintf(ctag,"UIN%1d",icham+1);
- gMC->Gsatt(ctag,"SEEN",0);
- sprintf(ctag,"UIO%1d",icham+1);
- gMC->Gsatt(ctag,"SEEN",0);
- sprintf(ctag,"UXI%1d",icham+1);
- gMC->Gsatt(ctag,"SEEN",1);
- sprintf(ctag,"UXN%1d",icham+1);
- gMC->Gsatt(ctag,"SEEN",1);
- sprintf(ctag,"UXO%1d",icham+1);
- gMC->Gsatt(ctag,"SEEN",1);
- }
- gMC->Gsatt("UT1I","SEEN",1);
- gMC->Gsatt("UT1N","SEEN",1);
- gMC->Gsatt("UT1O","SEEN",1);
-
- gMC->Gdopt("hide", "on");
- gMC->Gdopt("shad", "on");
- gMC->Gsatt("*", "fill", 7);
- gMC->SetClipBox(".");
- gMC->SetClipBox("*", 0, 2000, -2000, 2000, -2000, 2000);
- gMC->DefaultRange();
- gMC->Gdraw("alic", 40, 30, 0, 12, 9.4, .021, .021);
- gMC->Gdhead(1111, "Transition Radiation Detector Version 2");
- gMC->Gdman(18, 4, "MAN");
- gMC->Gdopt("hide", "off");
}
//_____________________________________________________________________________
//
// Create materials for the Transition Radiation Detector version 2
//
+
AliTRD::CreateMaterials();
+
}
//_____________________________________________________________________________
AliTRD::Init();
- // Get the sensitive volumes
- Char_t ctag[5];
- for (Int_t icham = 0; icham < ncham; ++icham) {
- sprintf(ctag,"UXI%1d",icham+1);
- fIdSensI[icham] = gMC->VolId(ctag);
- sprintf(ctag,"UXN%1d",icham+1);
- fIdSensN[icham] = gMC->VolId(ctag);
- sprintf(ctag,"UXO%1d",icham+1);
- fIdSensO[icham] = gMC->VolId(ctag);
- }
+ if (fSensPlane)
+ printf(" Only plane %d is sensitive\n",fSensPlane);
+ if (fSensChamber)
+ printf(" Only chamber %d is sensitive\n",fSensChamber);
+ if (fSensSector)
+ printf(" Only sector %d is sensitive\n",fSensSector);
- Float_t Poti = TMath::Log(kPoti);
- Float_t Eend = TMath::Log(kEend);
+ for(Int_t i = 0; i < 80; i++) printf("*");
+ printf("\n");
// Ermilova distribution for the delta-ray spectrum
+ Float_t Poti = TMath::Log(kPoti);
+ Float_t Eend = TMath::Log(kEend);
fDeltaE = new TF1("deltae",Ermilova,Poti,Eend,0);
+ // Identifier of the sensitive volume (drift region)
+ fIdSens = gMC->VolId("UL05");
+
+ // Identifier of the TRD-spaceframe volumina
+ fIdSpace1 = gMC->VolId("B028");
+ fIdSpace2 = gMC->VolId("B029");
+ fIdSpace3 = gMC->VolId("B030");
+
+ // Identifier of the TRD-driftchambers
+ fIdChamber1 = gMC->VolId("UCIO");
+ fIdChamber2 = gMC->VolId("UCIM");
+ fIdChamber3 = gMC->VolId("UCII");
+
}
//_____________________________________________________________________________
-void AliTRDv2::StepManager()
+void AliTRDv2::SetSensPlane(Int_t iplane)
{
//
- // Called at every step in the Transition Radiation Detector version 2
+ // Defines the hit-sensitive plane (1-6)
//
- Int_t idSens, icSens, id;
- Int_t iPla, iCha, iSec;
- Int_t iOut;
- Int_t vol[3];
- Int_t iPid;
+ if ((iplane < 0) || (iplane > 6)) {
+ printf("Wrong input value: %d\n",iplane);
+ printf("Use standard setting\n");
+ fSensPlane = 0;
+ fSensSelect = 0;
+ return;
+ }
- const Double_t kBig = 1.0E+12;
+ fSensSelect = 1;
+ fSensPlane = iplane;
- Float_t hits[4];
- Float_t random[1];
- Float_t charge;
- Float_t aMass;
+}
- TLorentzVector pos, mom;
+//_____________________________________________________________________________
+void AliTRDv2::SetSensChamber(Int_t ichamber)
+{
+ //
+ // Defines the hit-sensitive chamber (1-5)
+ //
- Double_t pTot;
- Double_t qTot;
- Double_t eDelta;
- Double_t betaGamma, pp;
+ if ((ichamber < 0) || (ichamber > 5)) {
+ printf("Wrong input value: %d\n",ichamber);
+ printf("Use standard setting\n");
+ fSensChamber = 0;
+ fSensSelect = 0;
+ return;
+ }
+
+ fSensSelect = 1;
+ fSensChamber = ichamber;
+}
+
+//_____________________________________________________________________________
+void AliTRDv2::SetSensSector(Int_t isector)
+{
+ //
+ // Defines the hit-sensitive sector (1-18)
+ //
+
+ if ((isector < 0) || (isector > 18)) {
+ printf("Wrong input value: %d\n",isector);
+ printf("Use standard setting\n");
+ fSensSector = 0;
+ fSensSelect = 0;
+ return;
+ }
+
+ fSensSelect = 1;
+ fSensSector = isector;
+
+}
+
+//_____________________________________________________________________________
+void AliTRDv2::StepManager()
+{
+ //
+ // Called at every step in the Transition Radiation Detector version 2.
+ // Slow simulator. Every charged track produces electron cluster as hits
+ // along its path across the drift volume. The step size is set acording
+ // to Bethe-Bloch. The energy distribution of the delta electrons follows
+ // a spectrum taken from Ermilova et al.
+ //
+
+ Int_t iIdSens, icSens;
+ Int_t iIdSpace, icSpace;
+ Int_t iIdChamber, icChamber;
+ Int_t vol[3];
+ Int_t iPid;
+
+ Int_t secMap1[10] = { 3, 7, 8, 9, 10, 11, 2, 1, 18, 17 };
+ Int_t secMap2[ 5] = { 16, 15, 14, 13, 12 };
+ Int_t secMap3[ 3] = { 5, 6, 4 };
+
+ Float_t hits[4];
+ Float_t random[1];
+ Float_t charge;
+ Float_t aMass;
+
+ Double_t pTot;
+ Double_t qTot;
+ Double_t eDelta;
+ Double_t betaGamma, pp;
+
+ TLorentzVector pos, mom;
TClonesArray &lhits = *fHits;
+ const Double_t kBig = 1.0E+12;
+
// Ionization energy
const Float_t kWion = 22.04;
// Maximum energy for e+ e- g for the step-size calculation
gMC->SetMaxStep(kBig);
// Use only charged tracks
- if (( gMC->TrackCharge() ) &&
- (!gMC->IsTrackStop() ) &&
+ if (( gMC->TrackCharge() ) &&
+ (!gMC->IsTrackStop() ) &&
(!gMC->IsTrackDisappeared())) {
- // Find the sensitive volume
- idSens = gMC->CurrentVolID(icSens);
- iPla = 0;
- iOut = 0;
- for (Int_t icham = 0; icham < ncham; ++icham) {
- if (idSens == fIdSensI[icham]) {
- iOut = 0;
- iPla = icham + 1;
- }
- if (idSens == fIdSensN[icham]) {
- iOut = 1;
- iPla = icham + 1;
- }
- if (idSens == fIdSensO[icham]) {
- iOut = 2;
- iPla = icham + 1;
- }
- }
-
// Inside a sensitive volume?
- if (iPla) {
+ iIdSens = gMC->CurrentVolID(icSens);
+ if (iIdSens == fIdSens) {
+
+ iIdSpace = gMC->CurrentVolOffID(4,icSpace );
+ iIdChamber = gMC->CurrentVolOffID(1,icChamber);
// Calculate the energy of the delta-electrons
eDelta = TMath::Exp(fDeltaE->GetRandom()) - kPoti;
// The number of secondary electrons created
qTot = (Double_t) ((Int_t) (eDelta / kWion) + 1);
- // The sector number
- id = gMC->CurrentVolOffID(4,iSec);
+ // The hit coordinates and charge
+ gMC->TrackPosition(pos);
+ hits[0] = pos[0];
+ hits[1] = pos[1];
+ hits[2] = pos[2];
+ hits[3] = qTot;
- // The chamber number
+ // The sector number
+ if (iIdSpace == fIdSpace1)
+ vol[0] = secMap1[icSpace-1];
+ else if (iIdSpace == fIdSpace2)
+ vol[0] = secMap2[icSpace-1];
+ else if (iIdSpace == fIdSpace3)
+ vol[0] = secMap3[icSpace-1];
+
+ // The chamber number
// 1: outer left
- // 2: neighbouring left
+ // 2: middle left
// 3: inner
- // 4: neighbouring right
+ // 4: middle right
// 5: outer right
- id = gMC->CurrentVolOffID(2,iCha);
- if (iCha == 1)
- iCha = 3 + iOut;
- else
- iCha = 3 - iOut;
+ if (iIdChamber == fIdChamber1)
+ vol[1] = (hits[2] < 0 ? 1 : 5);
+ else if (iIdChamber == fIdChamber2)
+ vol[1] = (hits[2] < 0 ? 2 : 4);
+ else if (iIdChamber == fIdChamber3)
+ vol[1] = 3;
- vol[0] = iSec;
- vol[1] = iCha;
- vol[2] = iPla;
+ // The plane number
+ vol[2] = icChamber - TMath::Nint((Float_t) (icChamber / 7)) * 6;
// Check on selected volumes
Int_t addthishit = 1;
if ((fSensSector) && (vol[0] != fSensSector )) addthishit = 0;
}
+ // Add this hit
if (addthishit) {
- // Add this hit
- gMC->TrackPosition(pos);
- hits[0]=pos[0];
- hits[1]=pos[1];
- hits[2]=pos[2];
- hits[3] = qTot;
new(lhits[fNhits++]) AliTRDhit(fIshunt,gAlice->CurrentTrack(),vol,hits);
// The energy loss according to Bethe Bloch
virtual void CreateMaterials();
virtual Int_t IsVersion() const {return 2;}
virtual void StepManager();
+ virtual void SetSensPlane(Int_t iplane = 0);
+ virtual void SetSensChamber(Int_t ichamber = 0);
+ virtual void SetSensSector(Int_t isector = 0);
virtual void Init();
- virtual void DrawModule();
protected:
- Int_t fIdSensI[ncham]; // Sensitive volume identifier (inner chambers)
- Int_t fIdSensN[ncham]; // Sensitive volume identifier (neighbouring chambers)
- Int_t fIdSensO[ncham]; // Sensitive volume identifier (outer chambers)
+ Int_t fIdSens; // Sensitive volume identifier
+
+ Int_t fIdSpace1; // Spaceframe volume identifier
+ Int_t fIdSpace2; //
+ Int_t fIdSpace3; //
+
+ Int_t fIdChamber1; // Driftchamber volume identifier
+ Int_t fIdChamber2; //
+ Int_t fIdChamber3; //
+
+ Int_t fSensSelect; // Switch to select only parts of the detector
+ Int_t fSensPlane; // Sensitive detector plane
+ Int_t fSensChamber; // Sensitive detector chamber
+ Int_t fSensSector; // Sensitive detector sector
private:
virtual Double_t BetheBloch(Double_t bg);
TF1 *fDeltaE; // Energy distribution of the delta-electrons
ClassDef(AliTRDv2,1) // Transition Radiation Detector version 2
+
};
#endif
//void DrawTRD()
{
- geant3->Gsatt("*", "seen", -1);
- geant3->Gsatt("alic", "seen", 0);
- AliTRD *TRD = gAlice->GetModule("TRD");
- if (TRD->IsVersion() == 0)
- gROOT->Macro("ViewTRD0.C");
- else if (TRD->IsVersion() == 1)
- gROOT->Macro("ViewTRD1.C");
- else if (TRD->IsVersion() == 2)
- gROOT->Macro("ViewTRD2.C");
- geant3->Gdopt("hide", "on");
- geant3->Gdopt("shad", "on");
- geant3->Gsatt("*", "fill", 7);
- geant3->SetClipBox(".");
- geant3->SetClipBox("*", 0, 2000, -2000, 2000, -2000, 2000);
- geant3->DefaultRange();
- geant3->Gdraw("alic", 40, 30, 0, 12, 9.4, .020, .020);
- geant3->Gdhead(1111, "Transition Radiation Detector");
- geant3->Gdman(18, 4, "MAN");
+ gMC->Gsatt("*", "seen", -1);
+ gMC->Gsatt("alic", "seen", 0);
+ gROOT->Macro("ViewTRD.C");
+ gMC->Gdopt("hide", "on");
+ gMC->Gdopt("shad", "on");
+ gMC->Gsatt("*", "fill", 7);
+ gMC->SetClipBox(".");
+ gMC->SetClipBox("*", 0, 2000, -2000, 2000, -2000, 2000);
+ gMC->DefaultRange();
+ gMC->Gdraw("alic", 40, 30, 0, 12, 9.4, .020, .020);
+ gMC->Gdhead(1111, "Transition Radiation Detector");
+ gMC->Gdman(18, 4, "MAN");
}
-//void ViewUTD()
+//void ViewTRD()
{
- gMC->Gsatt("TRD ","seen",0);
- gMC->Gsatt("UTRL","seen",0);
- gMC->Gsatt("UTSL","seen",0);
- gMC->Gsatt("UTFI","seen",0);
- gMC->Gsatt("UTFO","seen",0);
- gMC->Gsatt("UTCI","seen",0);
- gMC->Gsatt("UTCO","seen",0);
- gMC->Gsatt("UTII","seen",0);
- gMC->Gsatt("UTIO","seen",0);
- gMC->Gsatt("UTMI","seen",0);
- gMC->Gsatt("UTMO","seen",0);
+ gMC->Gsatt("B032","SEEN", 0);
+ gMC->Gsatt("B028","SEEN", 0);
+ gMC->Gsatt("B029","SEEN", 0);
+ gMC->Gsatt("B030","SEEN", 0);
+ gMC->Gsatt("BTR1","SEEN", 0);
+ gMC->Gsatt("BTR2","SEEN", 0);
+ gMC->Gsatt("BTR3","SEEN", 0);
+ gMC->Gsatt("TRD" ,"SEEN", 0);
+ gMC->Gsatt("UCII","SEEN", 0);
+ gMC->Gsatt("UCIM","SEEN", 0);
+ gMC->Gsatt("UCIO","SEEN", 0);
+ gMC->Gsatt("UL02","SEEN", 1);
+ gMC->Gsatt("UL05","SEEN", 1);
+ gMC->Gsatt("UL06","SEEN", 1);
- gMC->Gsatt("UTRS","seen",0);
- gMC->Gsatt("UTSS","seen",0);
- gMC->Gsatt("UTFS","seen",0);
- gMC->Gsatt("UTCS","seen",0);
- gMC->Gsatt("UTIS","seen",0);
- gMC->Gsatt("UTMS","seen",0);
-
- gMC->Gsatt("UT1S","seen",1);
- gMC->Gsatt("UT2S","seen",1);
- gMC->Gsatt("UT3S","seen",1);
- gMC->Gsatt("UT4S","seen",1);
- gMC->Gsatt("UT5S","seen",1);
- gMC->Gsatt("UT6S","seen",1);
- gMC->Gsatt("UT7S","seen",1);
- gMC->Gsatt("UT8S","seen",1);
-
- gMC->Gsatt("UT1I","seen",1);
- gMC->Gsatt("UT2I","seen",1);
- gMC->Gsatt("UT3I","seen",1);
- gMC->Gsatt("UT4I","seen",1);
- gMC->Gsatt("UT5I","seen",1);
- gMC->Gsatt("UT6I","seen",1);
- gMC->Gsatt("UT7I","seen",1);
- gMC->Gsatt("UT8I","seen",1);
-
- gMC->Gsatt("UT1O","seen",1);
- gMC->Gsatt("UTIO","seen",1);
- gMC->Gsatt("UT3O","seen",1);
- gMC->Gsatt("UT4O","seen",1);
- gMC->Gsatt("UT5O","seen",1);
- gMC->Gsatt("UT6O","seen",1);
- gMC->Gsatt("UT7O","seen",1);
- gMC->Gsatt("UT8O","seen",1);
-
- }
+}
git://git.uio.no / u / mrichter / AliRoot.git / commitdiff