/*
$Log$
+Revision 1.10 2001/10/25 08:50:57 morsch
+New beamshield geometry with increased tolerances and insulation thickness.
+
+Revision 1.9 2001/05/16 14:57:22 alibrary
+New files for folders and Stack
+
+Revision 1.8 2001/01/12 13:16:09 morsch
+Store absorber composition information in fMLayers and fZLayers
+Rear 25 cm Fe + 35 cm Cu
+
+Revision 1.7 2000/10/02 21:28:15 fca
+Removal of useless dependecies via forward declarations
+
Revision 1.6 2000/06/15 09:40:31 morsch
Obsolete typedef keyword removed
//
enum {kC=1605, kAl=1608, kFe=1609, kCu=1610, kW=1611, kPb=1612,
- kNiCuW=1620, kVacuum=1615, kAir=1614, kConcrete=1616,
- kPolyCH2=1617, kSteel=1609, kInsulation=1613};
+ kNiCuW=1620, kVacuum=1615, kAir=1614, kConcrete=1616,
+ kPolyCH2=1617, kSteel=1609, kInsulation=1613, kPolyCc=1619};
Int_t *idtmed = fIdtmed->GetArray()-1599;
Float_t par[24], cpar[5], cpar0[5], pcpar[12], tpar[3], tpar0[3];
Float_t dz;
-
+ Int_t idrotm[1699];
#include "ABSOSHILConst.h"
#include "ABSOConst.h"
+//
+// Structure of Tracking Region
+//
+ Float_t dzFe = 25.;
+
+// 3 < theta < 9
+ fNLayers[0] = 5;
+ fMLayers[0][0] = kAir; fZLayers[0][0] = zAbsStart;
+ fMLayers[0][1] = kC; fZLayers[0][1] = zAbsCc;
+ fMLayers[0][2] = kConcrete; fZLayers[0][2] = zRear-dRear-dzFe;
+ fMLayers[0][3] = kSteel; fZLayers[0][3] = zRear-dRear;
+ fMLayers[0][4] = kCu; fZLayers[0][4] = zRear;
+// 2 < theta < 3
+ fNLayers[1] = 5;
+ fMLayers[1][0] = fMLayers[0][0]; fZLayers[1][0] = fZLayers[0][0];
+ fMLayers[1][1] = fMLayers[0][1]; fZLayers[1][1] = fZLayers[0][1];
+ fMLayers[1][2] = fMLayers[0][2]; fZLayers[1][2] = fZLayers[0][2];
+ fMLayers[1][3] = fMLayers[0][3]; fZLayers[1][3] = fZLayers[0][3];
+ fMLayers[1][4] = kNiCuW; fZLayers[1][4] = fZLayers[0][4];
+//
+
Float_t dTube=0.1; // tube thickness
Float_t dInsu=0.5; // insulation thickness
Float_t dEnve=0.1; // protective envelope thickness
//
// Tungsten inner shield
//
- Float_t zW=zTwoDeg+.1;
+ Float_t zW = zTwoDeg+.1;
Float_t dZ = zW+(zRear-dRear-zW)/2.;
//
pcpar[0] = 0.;
//
dz=(zW+zRear-dRear)/2-(zAbsStart+zRear)/2.;
gMC->Gspos("AWIN", 1, "ABSS", 0., 0., dz, 0, "ONLY");
-
+ cpar[0] = (200.-zW)/2.;
+ cpar[1] = rAbs;
+ cpar[2] = pcpar[5];
+ cpar[3] = rAbs;
+ cpar[4] = 200. * TMath::Tan(accMin);
+ gMC->Gsvolu("ACNO", "CONE", idtmed[kC], cpar, 5);
+ dz = zW-dZ+cpar[0];
+
+ gMC->Gspos("ACNO", 1, "AWIN", 0., 0., dz, 0, "ONLY");
// Inner tracking region
//
- // mother volume: Pb
+ // mother volume: Cu
//
pcpar[0] = 0.;
pcpar[1] = 360.;
pcpar[9] = -pcpar[3];
pcpar[10] = zRear * TMath::Tan(accMin);
pcpar[11] = zRear * TMath::Tan(accMax);
- gMC->Gsvolu("AITR", "PCON", idtmed[kPb], pcpar, 12);
+ gMC->Gsvolu("AITR", "PCON", idtmed[fMLayers[0][4]], pcpar, 12);
//
// special Pb medium for last 5 cm of Pb
Float_t zr=zRear-2.-0.001;
cpar[2] = zr * TMath::Tan(accMax);
cpar[3] = cpar[1] + TMath::Tan(thetaR) * 2;
cpar[4] = cpar[2] + TMath::Tan(accMax) * 2;
- gMC->Gsvolu("ARPB", "CONE", idtmed[kPb], cpar, 5);
+ gMC->Gsvolu("ARPB", "CONE", idtmed[fMLayers[0][4]], cpar, 5);
dz=(zRear-zAbsStart)/2.-cpar[0]-0.001;
gMC->Gspos("ARPB", 1, "AITR", 0., 0., dz, 0, "ONLY");
//
pcpar[9] = pcpar[3]+(zRear-dRear-zAbsStart);
pcpar[10] = (zRear-dRear) * TMath::Tan(accMin);
pcpar[11] = (zRear-dRear) * TMath::Tan(accMax);
- gMC->Gsvolu("ACON", "PCON", idtmed[kConcrete+40], pcpar, 12);
+ gMC->Gsvolu("ACON", "PCON", idtmed[fMLayers[0][2]+40], pcpar, 12);
gMC->Gspos("ACON", 1, "AITR", 0., 0., 0., 0, "ONLY");
+//
+// Fe Cone
+//
+ zr = zRear-dRear-dzFe;
+ cpar[0] = dzFe/2.;
+ cpar[1] = zr * TMath::Tan(accMin);
+ cpar[2] = zr * TMath::Tan(accMax);
+ cpar[3] = cpar[1] + TMath::Tan(accMin) * dzFe;
+ cpar[4] = cpar[2] + TMath::Tan(accMax) * dzFe;
+ gMC->Gsvolu("ACFE", "CONE",idtmed[fMLayers[0][3]], cpar, 5);
+
+ dz = (zRear-zAbsStart)/2.-dRear-dzFe/2.;
+
+ gMC->Gspos("ACFE", 1, "ACON", 0., 0., dz, 0, "ONLY");
+
+
+ //
//
// carbon cone: carbon
//
pcpar[9] = pcpar[3]+(zAbsCc-zAbsStart);
pcpar[10] = zAbsCc * TMath::Tan(accMin);
pcpar[11] = zAbsCc * TMath::Tan(accMax);
- gMC->Gsvolu("ACAR", "PCON", idtmed[kC+40], pcpar, 12);
+ gMC->Gsvolu("ACAR", "PCON", idtmed[fMLayers[0][1]+40], pcpar, 12);
gMC->Gspos("ACAR", 1, "ACON", 0., 0., 0., 0, "ONLY");
//
// carbon cone outer region
cpar[3] = rAbs;
cpar[4] = cpar[2]+2. * cpar[0] * TMath::Tan(accMax);
- gMC->Gsvolu("ACAO", "CONE", idtmed[kC], cpar, 5);
+ gMC->Gsvolu("ACAO", "CONE", idtmed[fMLayers[0][1]], cpar, 5);
dz=-(zRear-zAbsStart)/2.+cpar[0];
gMC->Gspos("ACAO", 1, "ACAR", 0., 0., dz, 0, "ONLY");
//
cpar[2] = zr * TMath::Tan(thetaR*repsi);
cpar[3] = cpar[1] + TMath::Tan(accMin) * (dRear-epsi);
cpar[4] = cpar[2] + TMath::Tan(thetaR*repsi) * (dRear-epsi);
- gMC->Gsvolu("ARW0", "CONE", idtmed[kNiCuW+40], cpar, 5);
+ gMC->Gsvolu("ARW0", "CONE", idtmed[fMLayers[1][4]+40], cpar, 5);
dz=(zRear-zAbsStart)/2.-cpar[0];
gMC->Gspos("ARW0", 1, "AITR", 0., 0., dz, 0, "ONLY");
//
cpar[2] = zr * TMath::Tan(thetaR*repsi);
cpar[3] = cpar[1] + TMath::Tan(accMin) * 5.;
cpar[4] = cpar[2] + TMath::Tan(thetaR*repsi) * 5.;
- gMC->Gsvolu("ARW1", "CONE", idtmed[kNiCuW+20], cpar, 5);
+ gMC->Gsvolu("ARW1", "CONE", idtmed[fMLayers[1][4]+20], cpar, 5);
dz=(dRear-epsi)/2.-cpar[0];
gMC->Gspos("ARW1", 1, "ARW0", 0., 0., dz, 0, "ONLY");
//
- // PolyEthylene Layers
+ // Cu
Float_t drMin=TMath::Tan(thetaR) * 5;
Float_t drMax=TMath::Tan(accMax) * 5;
- gMC->Gsvolu("ARPE", "CONE", idtmed[kPolyCH2], cpar, 0);
+ gMC->Gsvolu("ARPE", "CONE", idtmed[fMLayers[0][4]], cpar, 0);
cpar[0]=2.5;
{ // Begin local scope for i
for (Int_t i=0; i<3; i++) {
// cylindrical piece
tpar0[2]=(zOpen-zAbsStart)/2;
tpar0[0]=rVacu;
- tpar0[1]=rAbs;
+ tpar0[1]=rVacu+dTube+dInsu+dEnve;
gMC->Gsvolu("AV11", "TUBE", idtmed[kSteel+40], tpar0, 3);
//
// insulation
tpar[1]=tpar[0]+dInsu;
gMC->Gsvolu("AI11", "TUBE", idtmed[kInsulation+40], tpar, 3);
gMC->Gspos("AI11", 1, "AV11", 0., 0., 0., 0, "ONLY");
-//
-// clearance
- tpar[0]=tpar[1]+dEnve;
- tpar[1]=tpar[0]+dFree;
- gMC->Gsvolu("AP11", "TUBE", idtmed[kAir+40], tpar, 3);
- gMC->Gspos("AP11", 1, "AV11", 0., 0., 0., 0, "ONLY");
//
dz=-(zRear-zAbsStart)/2.+tpar0[2];
gMC->Gspos("AV11", 1, "ABSM", 0., 0., dz, 0, "ONLY");
// conical piece
cpar0[0]=(zRear-dRear-zOpen)/2;
- cpar0[1]=rVacu-0.05;
- cpar0[2]=rAbs;
+ cpar0[1]= rVacu-0.05;
+ cpar0[2]= rVacu+dTube+dInsu+dEnve;
Float_t dR=2.*cpar0[0]*TMath::Tan(thetaOpen1);
cpar0[3]=cpar0[1]+dR;
cpar0[4]=cpar0[2]+dR;
cpar[4]=cpar0[3]+dTube+dInsu;
gMC->Gsvolu("AI21", "CONE", idtmed[kInsulation+40], cpar, 5);
gMC->Gspos("AI21", 1, "AV21", 0., 0., 0., 0, "ONLY");
-//
-// clearance
- cpar[1]=cpar0[1]+dTube+dInsu+dEnve;
- cpar[2]=rAbs;
- cpar[3]=cpar0[1]+dTube+dInsu+dEnve+dR;
- cpar[4]=rAbs+dR;
-
- gMC->Gsvolu("AP21", "CONE", idtmed[kAir+40], cpar, 5);
- gMC->Gspos("AP21", 1, "AV21", 0., 0., 0., 0, "ONLY");
dz=(zRear-zAbsStart)/2.-cpar0[0]-dRear;
gMC->Gspos("AV21", 1, "ABSM", 0., 0., dz, 0, "ONLY");
+//
+// Support cone
+
+ par[0] = 22.5;
+ par[1] = 360.0;
+ par[2] = 8.0;
+ par[3] = 4.0;
+
+ par[4] = zRear;
+ par[5] = 100.;
+ par[6] = 170.;
+
+ par[7] = zRear+2.;
+ par[8] = 100.;
+ par[9] = 170.;
+
+ par[10] = zRear+2.;
+ par[11] = 168.;
+ par[12] = 170.;
+
+ par[13] = 600.;
+ par[14] = 168.;
+ par[15] = 170.;
+
+
+ gMC->Gsvolu("ASSS", "PGON", idtmed[kSteel], par, 16);
+ gMC->Gspos("ASSS", 1, "ALIC", 0., 0., 0., 0, "ONLY");
+
+ Float_t trap[11];
+ trap[ 0] = (530.-170.)/2.;
+ trap[ 2] = 0.;
+ trap[ 3] = 2.;
+ trap[ 4] = (600.-(zRear+2.))/2.;;
+ trap[ 5] = trap[4];
+ trap[ 6] = 0.;
+ trap[ 7] = 2.;
+ trap[ 8] = 5.;
+ trap[ 9] = 5.;
+ trap[10] = 0.;
+ trap[ 1] = -TMath::ATan((trap[4]-trap[8])/2./trap[0])*180./TMath::Pi();
+ AliMatrix(idrotm[1600], 180., 0., 90., 0., 90., 90.);
+ AliMatrix(idrotm[1601], 180., 0., 90., 0., 90., 270.);
+ gMC->Gsvolu("ASST", "TRAP", idtmed[kSteel], trap, 11);
+ dz = (600.+zRear+2.)/2.+(trap[4]-trap[8])/2.;
+ Float_t dy = 170.+trap[0];
+
+ gMC->Gspos("ASST", 1, "ALIC", 0., dy, dz, idrotm[1600], "ONLY");
+ gMC->Gspos("ASST", 2, "ALIC", 0., -dy, dz, idrotm[1601], "ONLY");
}
//_____________________________________________________________________________
// Initialisation of the muon absorber after it has been built
Int_t i;
//
- printf("\n");
- for(i=0;i<35;i++) printf("*");
- printf(" ABSOv0_INIT ");
- for(i=0;i<35;i++) printf("*");
- printf("\n");
- //
- for(i=0;i<80;i++) printf("*");
- printf("\n");
+ if(fDebug) {
+ printf("\n%s: ",ClassName());
+ for(i=0;i<35;i++) printf("*");
+ printf(" ABSOv0_INIT ");
+ for(i=0;i<35;i++) printf("*");
+ printf("\n%s: ",ClassName());
+ //
+ for(i=0;i<80;i++) printf("*");
+ printf("\n");
+ }
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff