+/**************************************************************************
+ * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * *
+ * Author: The ALICE Off-line Project. *
+ * Contributors are mentioned in the code where appropriate. *
+ * *
+ * Permission to use, copy, modify and distribute this software and its *
+ * documentation strictly for non-commercial purposes is hereby granted *
+ * without fee, provided that the above copyright notice appears in all *
+ * copies and that both the copyright notice and this permission notice *
+ * appear in the supporting documentation. The authors make no claims *
+ * about the suitability of this software for any purpose. It is *
+ * provided "as is" without express or implied warranty. *
+ **************************************************************************/
+
+/*
+$Log$
+*/
+
///////////////////////////////////////////////////////////////////////////////
// //
// Transition Radiation Detector //
// //
//Begin_Html
/*
-<img src="gif/AliTRDClass.gif">
+<img src="picts/AliTRDClass.gif">
*/
//End_Html
// //
// //
///////////////////////////////////////////////////////////////////////////////
+#include <stdlib.h>
+
#include <TMath.h>
-#include <TRandom.h>
-#include <TVector.h>
-#include <TGeometry.h>
#include <TNode.h>
-#include <TObjectTable.h>
-#include <TBRIK.h>
#include <TPGON.h>
-#include "GParticle.h"
#include "AliTRD.h"
#include "AliRun.h"
-#include <iostream.h>
-#include <fstream.h>
-#include "TGeant3.h"
+#include "AliConst.h"
ClassImp(AliTRD)
//
// Default constructor
//
- fIshunt = 0;
+
+ fIshunt = 0;
+ fGasMix = 0;
+ fHits = 0;
+ fDigits = 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);
-
+
+ // Allocate the digits array
+ fDigits = new TClonesArray("AliTRDdigit",10000);
+
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);
+
}
-
+
+//_____________________________________________________________________________
+AliTRD::~AliTRD()
+{
+ //
+ // TRD destructor
+ //
+
+ fIshunt = 0;
+
+ delete fHits;
+ delete fDigits;
+
+}
+
+//_____________________________________________________________________________
+void AliTRD::AddDigit(Int_t *tracks, Int_t *digits)
+{
+ //
+ // Add a digit for the TRD
+ //
+
+ TClonesArray &ldigits = *fDigits;
+ new(ldigits[fNdigits++]) AliTRDdigit(tracks,digits);
+
+}
+
//_____________________________________________________________________________
void AliTRD::AddHit(Int_t track, Int_t *vol, Float_t *hits)
{
//
// 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");
- //
- pgon = new TPGON("S_TRD","TRD","void",0,360,18,2);
- pgon->DefineSection(0,-351.2,285.335,355.686);
- pgon->DefineSection(1, 351.2,285.335,355.686);
+ Top = gAlice->GetGeometry()->GetNode("alice");
+
+ 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);
fNodes->Add(Node);
+
+}
+
+//_____________________________________________________________________________
+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];
+ Int_t iplan;
+
+ Float_t xpos, ypos, zpos;
+
+ Int_t *idtmed = fIdtmed->GetArray()-1299;
+
+ // The length of the inner chambers
+ for (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 (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);
+
+ }
+
}
//_____________________________________________________________________________
// Origin Y.Foka
//
- AliMC* pMC = AliMC::GetMC();
-
Int_t ISXFLD = gAlice->Field()->Integ();
Float_t SXMGMX = gAlice->Field()->Max();
- // --- For polyethilene (CH2)
- Float_t ape[2] = { 12.,1. };
- Float_t zpe[2] = { 6.,1. };
- Float_t wpe[2] = { .33,.67 };
- Float_t dpe = .95;
- // --- For mylar (C5H4O2)
- Float_t amy[3] = { 12.,1.,16. };
- Float_t zmy[3] = { 6.,1.,8. };
- Float_t wmy[3] = { 5.,4.,2. };
+ // For polyethilene (CH2)
+ Float_t ape[2] = { 12., 1. };
+ Float_t zpe[2] = { 6., 1. };
+ Float_t wpe[2] = { 1., 2. };
+ Float_t dpe = 0.95;
+
+ // For mylar (C5H4O2)
+ Float_t amy[3] = { 12., 1., 16. };
+ Float_t zmy[3] = { 6., 1., 8. };
+ Float_t wmy[3] = { 5., 4., 2. };
Float_t dmy = 1.39;
- // --- For CO2
- Float_t aco[2] = { 12.,16. };
- Float_t zco[2] = { 6.,8. };
- Float_t wco[2] = { 1.,2. };
- Float_t dco = .001977;
- // --- For Xe/CO2-gas-mixture
- // --- Xe-content of the gas-mixture (90% / 10%)
- Float_t fxe = .9;
+
+ // For CO2
+ Float_t aco[2] = { 12., 16. };
+ Float_t zco[2] = { 6., 8. };
+ Float_t wco[2] = { 1., 2. };
+ Float_t dco = 0.001977;
+
+ // For water
+ Float_t awa[2] = { 1., 16. };
+ Float_t zwa[2] = { 1., 8. };
+ Float_t wwa[2] = { 2., 1. };
+ Float_t dwa = 1.0;
+
+ // For isobutane (C4H10)
+ Float_t ais[2] = { 12., 1. };
+ Float_t zis[2] = { 6., 1. };
+ Float_t wis[2] = { 4., 10. };
+ Float_t dis = 0.00267;
+
+ // For Xe/CO2-gas-mixture
+ // Xe-content of the Xe/CO2-mixture (90% / 10%)
+ Float_t fxc = .90;
+ // Xe-content of the Xe/Isobutane-mixture (97% / 3%)
+ Float_t fxi = .97;
Float_t dxe = .005858;
- // --- General tracking parameter
+ // General tracking parameter
Float_t tmaxfd = -10.;
Float_t stemax = -1e10;
- Float_t deemax = -.1;
- Float_t epsil = 1e-4;
- Float_t stmin = -.001;
+ Float_t deemax = -0.1;
+ Float_t epsil = 1e-4;
+ Float_t stmin = -0.001;
Float_t absl, radl, d, buf[1];
Float_t agm[2], dgm, zgm[2], wgm[2];
- Int_t nbuf;
+ Int_t nbuf;
+ //////////////////////////////////////////////////////////////////////////
// Define Materials
-
- // ***********************************************************************
- AliMaterial(1, "Al $", 26.98, 13., 2.7, 8.9, 37.2);
- AliMaterial(2, "Air$", 14.61, 7.3, .001205, 30420., 67500);
- AliMaterial(4, "Xe $", 131.29, 54., dxe, 1447.59, 0);
- AliMaterial(5, "Cu $", 63.54, 29., 8.96, 1.43, 14.8);
- AliMaterial(6, "C $", 12.01, 6., 2.265, 18.8, 74.4);
- // --- Mixtures
- AliMixture(3, "Polyethilene$", ape, zpe, dpe, -2, wpe);
- AliMixture(7, "Mylar$", amy, zmy, dmy, -3, wmy);
- AliMixture(8, "CO2$", aco, zco, dco, -2, wco);
- char namate[21];
- // --- Get properties of Xe
- pMC->Gfmate((*fIdmate)[4], namate, agm[0], zgm[0], d, radl, absl, buf, nbuf);
- // --- Get properties of CO2
- pMC->Gfmate((*fIdmate)[8], namate, agm[1], zgm[1], d, radl, absl, buf, nbuf);
- // --- Create gas mixture
- wgm[0] = fxe;
- wgm[1] = 1. - fxe;
+ //////////////////////////////////////////////////////////////////////////
+
+ AliMaterial( 1, "Al $", 26.98, 13.0, 2.7 , 8.9 , 37.2);
+ AliMaterial( 2, "Air$", 14.61, 7.3, 0.001205, 30420.0 , 67500.0);
+ AliMaterial( 4, "Xe $", 131.29, 54.0, dxe , 1447.59, 0.0);
+ AliMaterial( 5, "Cu $", 63.54, 29.0, 8.96 , 1.43, 14.8);
+ AliMaterial( 6, "C $", 12.01, 6.0, 2.265 , 18.8 , 74.4);
+ AliMaterial(12, "G10$", 20.00, 10.0, 1.7 , 19.4 , 999.0);
+
+ // Mixtures
+ AliMixture(3, "Polyethilene$", ape, zpe, dpe, -2, wpe);
+ AliMixture(7, "Mylar$", amy, zmy, dmy, -3, wmy);
+ AliMixture(8, "CO2$", aco, zco, dco, -2, wco);
+ AliMixture(9, "Isobutane$", ais, zis, dis, -2, wis);
+ AliMixture(13,"Water$", awa, zwa, dwa, -2, wwa);
+
+ // Gas mixtures
+ Char_t namate[21];
+ // Xe/CO2-mixture
+ // Get properties of Xe
+ gMC->Gfmate((*fIdmate)[4], namate, agm[0], zgm[0], d, radl, absl, buf, nbuf);
+ // Get properties of CO2
+ gMC->Gfmate((*fIdmate)[8], namate, agm[1], zgm[1], d, radl, absl, buf, nbuf);
+ // Create gas mixture
+ wgm[0] = fxc;
+ wgm[1] = 1. - fxc;
dgm = wgm[0] * dxe + wgm[1] * dco;
- AliMixture(9, "Gas mixture$", agm, zgm, dgm, 2, wgm);
- // ***********************************************************************
-
+ AliMixture(10, "Gas mixture 1$", agm, zgm, dgm, 2, wgm);
+ // Xe/Isobutane-mixture
+ // Get properties of Xe
+ gMC->Gfmate((*fIdmate)[4], namate, agm[0], zgm[0], d, radl, absl, buf, nbuf);
+ // Get properties of Isobutane
+ gMC->Gfmate((*fIdmate)[9], namate, agm[1], zgm[1], d, radl, absl, buf, nbuf);
+ // Create gas mixture
+ wgm[0] = fxi;
+ wgm[1] = 1. - fxi;
+ dgm = wgm[0] * dxe + wgm[1] * dis;
+ AliMixture(11, "Gas mixture 2$", agm, zgm, dgm, 2, wgm);
+
+ //////////////////////////////////////////////////////////////////////////
// Tracking Media Parameters
+ //////////////////////////////////////////////////////////////////////////
+
+ // Al Frame
+ AliMedium(1, "Al Frame$", 1, 0, ISXFLD, SXMGMX
+ , tmaxfd, stemax, deemax, epsil, stmin);
+ // Air
+ AliMedium(2, "Air$", 2, 0, ISXFLD, SXMGMX
+ , tmaxfd, stemax, deemax, epsil, stmin);
+ // Polyethilene
+ AliMedium(3, "Radiator$", 3, 0, ISXFLD, SXMGMX
+ , tmaxfd, stemax, deemax, epsil, stmin);
+ // Xe
+ AliMedium(4, "Xe$", 4, 1, ISXFLD, SXMGMX
+ , tmaxfd, stemax, deemax, epsil, stmin);
+ // Cu pads
+ AliMedium(5, "Padplane$", 5, 1, ISXFLD, SXMGMX
+ , tmaxfd, stemax, deemax, epsil, stmin);
+ // Fee + cables
+ AliMedium(6, "Readout$", 1, 0, ISXFLD, SXMGMX
+ , tmaxfd, stemax, deemax, epsil, stmin);
+ // C frame
+ AliMedium(7, "C Frame$", 6, 0, ISXFLD, SXMGMX
+ , tmaxfd, stemax, deemax, epsil, stmin);
+ // Mylar foils
+ AliMedium(8, "Mylar$", 7, 0, ISXFLD, SXMGMX
+ , tmaxfd, stemax, deemax, epsil, stmin);
+ if (fGasMix == 1) {
+ // Gas-mixture (Xe/CO2)
+ AliMedium(9, "Gas-mix$", 10, 1, ISXFLD, SXMGMX
+ , tmaxfd, stemax, deemax, epsil, stmin);
+ }
+ else {
+ // Gas-mixture (Xe/Isobutane)
+ AliMedium(9, "Gas-mix$", 11, 1, ISXFLD, SXMGMX
+ , tmaxfd, stemax, deemax, epsil, stmin);
+ }
+ // Nomex-honeycomb (use carbon for the time being)
+ AliMedium(10, "Nomex$", 6, 0, ISXFLD, SXMGMX
+ , tmaxfd, stemax, deemax, epsil, stmin);
+ // Kapton foils (use Mylar for the time being)
+ AliMedium(11, "Kapton$", 7, 0, ISXFLD, SXMGMX
+ , tmaxfd, stemax, deemax, epsil, stmin);
+ // Gas-filling of the radiator
+ AliMedium(12, "CO2$", 8, 0, ISXFLD, SXMGMX
+ , tmaxfd, stemax, deemax, epsil, stmin);
+ // G10-plates
+ AliMedium(13, "G10-plates$",12, 0, ISXFLD, SXMGMX
+ , tmaxfd, stemax, deemax, epsil, stmin);
+ // Cooling water
+ AliMedium(14, "Water$", 13, 0, ISXFLD, SXMGMX
+ , tmaxfd, stemax, deemax, epsil, stmin);
+
+}
+
+//_____________________________________________________________________________
+void AliTRD::DrawModule()
+{
+ //
+ // Draw a shaded view of the Transition Radiation Detector version 0
+ //
+
+ // Set everything unseen
+ gMC->Gsatt("*" ,"SEEN",-1);
+
+ // Set ALIC mother transparent
+ gMC->Gsatt("ALIC","SEEN", 0);
- // ***********************************************************************
- // --- Al Frame
- AliMedium(1301, "Al Frame$", 1, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
- // --- Air
- AliMedium(1302, "Air$", 2, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
- // --- Polyethilene
- AliMedium(1303, "Radiator$", 3, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
- // --- Xe
- AliMedium(1304, "Xe$", 4, 1, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
- // --- Cu pads
- AliMedium(1305, "Padplane$", 5, 1, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
- // --- Fee + cables
- AliMedium(1306, "Readout$", 1, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
- // --- C frame
- AliMedium(1307, "C Frame$", 6, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
- // --- Mylar foils
- AliMedium(1308, "Mylar$", 7, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
- // --- Gas-mixture
- AliMedium(1309, "Gas-mix$", 9, 1, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
- // --- Nomex-honeycomb (use carbon for the time being)
- AliMedium(1310, "Nomex$", 6, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
- // --- Kapton foils (use Mylar for the time being)
- AliMedium(1311, "Kapton$", 7, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
- // --- Gas-filling of the radiator
- AliMedium(1312, "CO2$", 8, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
+ // 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");
+
}
//_____________________________________________________________________________
//
// 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 ");
for(i=0;i<35;i++) printf("*");
printf("\n");
- //
+
// Here the TRD initialisation code (if any!)
- for(i=0;i<80;i++) printf("*");
- printf("\n");
+ if (fGasMix == 1)
+ printf(" Gas Mixture: 90%% Xe + 10%% CO2\n");
+ else
+ printf(" Gas Mixture: 97%% Xe + 3%% Isobutane\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");
+ fGasMix = 0;
+ return;
+ }
+
+ fGasMix = imix;
+
}
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];
+
+}
+
+ClassImp(AliTRDdigit)
+
+//_____________________________________________________________________________
+AliTRDdigit::AliTRDdigit(Int_t *tracks, Int_t *digits)
+ :AliDigit(tracks)
+{
+ //
+ // Create a TRD digit
+ //
+
+ // Store the volume hierarchy
+ fSector = digits[0];
+ fChamber = digits[1];
+ fPlane = digits[2];
+
+ // Store the row, pad, and time bucket number
+ fRow = digits[3];
+ fCol = digits[4];
+ fTime = digits[5];
+
+ // Store the signal amplitude
+ fSignal = digits[6];
+
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff