// (V-zero) detector version 2 as designed by the Lyon group //
// All comments should be sent to Brigitte CHEYNIS : //
// b.cheynis@ipnl.in2p3.fr //
-// Geometry of the 4th of november 2002 //
+// Geometry of the 26th of november 2003 //
// (circular instead of trapezoidal shapes as in previous versions //
-// plus changes in cell dimensions and offsets) //
-// New coordinate system implemented in october 2003 //
+// plus changes in cell dimensions and offsets) : //
+// Scintillating cells are now 2 cm thick instead of 0.7 cm //
+// V0R sits between Z values -89.4 and -85.0 cm //
+// V0L sits between Z values +350.0 and +352.0 cm //
+// New coordinate system has been implemented in october 2003 //
// //
//////////////////////////////////////////////////////////////////////
// --- ROOT libraries ---
#include <TClonesArray.h>
-#include <TGeant3.h>
#include <TGeometry.h>
#include <TLorentzVector.h>
#include <TMath.h>
#include "AliRun.h"
#include "AliMC.h"
#include "AliConst.h"
+#include "AliLog.h"
#include "AliMagF.h"
#include "AliVZEROLoader.h"
#include "AliVZEROdigit.h"
// Standard constructor for V-zero Detector version 2
- Int_t i;
-
- printf("\n");
- for(i=0;i<26;i++) printf("*");
- printf(" Create VZERO object ");
- for(i=0;i<26;i++) printf("*");
- printf("\n");
+ AliDebug(2,"Create VZERO object");
}
// Creates the GEANT geometry of the V-zero Detector version 2
- Int_t i;
-
- printf("\n");
- for(i=0;i<26;i++) printf("*");
- printf(" Create VZERO Geometry ");
- for(i=0;i<26;i++) printf("*");
- printf("\n");
+ AliDebug(2,"Create VZERO Geometry");
Int_t *idtmed = fIdtmed->GetArray()-2999;
theta = pi/6.0/2.0; // half angular opening = 15 degrees
halfThickQua= fThickness1/2.0; // half thickness of elementary cell (inner ring)
-
- zdet = 90.0 - 0.6 -fThickness/2.0; // distance to vertex (along Z axis)
+
+// distance 0.6 cm in zdet accounts for the fact V0R box back lid sits 0.6 away from
+// absorber nose sitting at 90 cm. Will use -zdet later...
+
+ zdet = 90.0 - 0.6 -fThickness/2.0; // distance to vertex (along Z axis)
r0 = 4.05; // closest distance to center of the beam pipe
height = height1 + height2 + height3 + height4 + height5;
r5 = r0 + height;
gMC->Gsvolu("V0RI","TUBE",idtmed[3010],partube,3);
-// Creation of carbon lids (3 mm thick) to keep v0RI box shut...
+// Creation of carbon lids (2 mm thick) to keep v0RI box shut...
+
+ Float_t lidThickness = 0.2;
partube[0] = r0;
partube[1] = r5;
- partube[2] = +0.3/2.0;
+ partube[2] = +lidThickness/2.0;
gMC->Gsvolu("V0CA","TUBE",idtmed[3001],partube,3);
gMC->Gspos("V0CA",1,"V0RI",0.0,0.0, fThickness/2.0-partube[2],0,"ONLY");
gMC->Gsvolu("V0R0","TUBS",idtmed[3010],partubs,5); // air volume
// Elementary cell of ring 1 :
-// (the cells will be shifted by 3 mm to output fibers)
+// (cells 2 and 3 will be shifted by 1 cm to output fibers)
- Float_t offsetFibers = 0.7;
- Float_t offset = fThickness/2.0 - 0.3 - fThickness1/2.0;
+ Float_t offsetFibers = 1.0;
+ Float_t offset = fThickness/2.0 - lidThickness - fThickness1/2.0;
Float_t r1 = r0 + height1;
partubs[0] = r0;
partubs[1] = r4;
gMC->Gsvolu("V0R4","TUBS",idtmed[3005],partubs,5); // scintillator volume
- gMC->Gspos("V0R4",1,"V0R0", 0.0, 0.0 , -offset + 3.0 * offsetFibers, 0,"ONLY");
+ gMC->Gspos("V0R4",1,"V0R0", 0.0, 0.0 , -offset + 2.0 * offsetFibers, 0,"ONLY");
// Elementary cells of ring 5 :
partubs[4] = 120.0-30.0;
gMC->Gsvolu("V0R5","TUBS",idtmed[3005],partubs,5); // scintillator volume
- gMC->Gspos("V0R5",1,"V0R0", 0.0, 0.0 , -offset + 4.0 * offsetFibers, 0,"ONLY");
+ gMC->Gspos("V0R5",1,"V0R0", 0.0, 0.0 , -offset + 2.0 * offsetFibers, 0,"ONLY");
partubs[3] = 120.0-30.0;
partubs[4] = 120.0-15.0;
gMC->Gsvolu("V0R6","TUBS",idtmed[3005],partubs,5); // scintillator volume
- gMC->Gspos("V0R6",1,"V0R0", 0.0, 0.0 , -offset + 4.0 * offsetFibers, 0,"ONLY");
+ gMC->Gspos("V0R6",1,"V0R0", 0.0, 0.0 , -offset + 2.0 * offsetFibers, 0,"ONLY");
Float_t phiDeg = 180./6.;
gMC->Gspos("V0RI",1,"ALIC",0.0,0.0,-zdet,0,"ONLY");
ncellsR = (ndetR - 1) * 6;
- printf(" Number of cells on Right side = %d\n", ncellsR);
+ AliInfo(Form("Number of cells on Right side = %d", ncellsR));
// Left part :
gMC->Gspos("V0LE",1,"ALIC",0.0,0.0,350.0+fThickness1/2.0,0,"ONLY");
ncellsL = (ndetL - 1) * 6;
- printf(" Number of cells on Left side = %d\n", ncellsL);
- for(i=0;i<75;i++) printf("*");
- printf("\n");
+ AliInfo(Form("Number of cells on Left side = %d", ncellsL));
}
// Builds simple ROOT TNode geometry for event display
- Int_t i;
-
- printf("\n");
- for(i=0;i<30;i++) printf("*");
- printf(" VZERO BuildGeometry ");
- for(i=0;i<30;i++) printf("*");
- printf("\n");
+ AliDebug(2,"VZERO BuildGeometry");
TNode *top;
fNodes->Add(v0Rnode);
v0Rnode->SetVisibility(2);
-// Rondelles de carbone (epaisseur 3 mm) de maintien des cellules ...
+// Rondelles de carbone (epaisseur 2 mm) de maintien des cellules ...
+
+ Float_t lidThickness = 0.2;
partube[0] = r0;
partube[1] = r5;
- partube[2] = +0.3/2.0;
+ partube[2] = +lidThickness/2.0;
TTUBE *v0CA = new TTUBE("V0CA", "V0CA", "void",partube[0], partube[1], partube[2]);
v0R0->SetNumberOfDivisions(ndiv);
Float_t r1 = r0 + height1;
- Float_t offset = fThickness/2.0 - 0.3 - fThickness1/2.0;
- Float_t offsetFibers = 0.7;
+ Float_t offset = fThickness/2.0 - lidThickness - fThickness1/2.0;
+ Float_t offsetFibers = 1.0;
partubs[0] = r0;
partubs[1] = r1;
sprintf(nameNode,"SUBDER%d",ndetR);
v0Rnode0->cd();
- v0Rnode4 = new TNode(nameNode,nameNode,v0R4,0.0,0.0, -offset + 3.0*offsetFibers,0);
+ v0Rnode4 = new TNode(nameNode,nameNode,v0R4,0.0,0.0, -offset + 2.0*offsetFibers,0);
v0Rnode4->SetLineColor(kColorVZERO);
fNodes->Add(v0Rnode4);
ndetR++;
sprintf(nameNode,"SUBDER%d",ndetR);
v0Rnode0->cd();
- v0Rnode5 = new TNode(nameNode,nameNode,v0R5,0.0,0.0, -offset + 4.0*offsetFibers,0);
+ v0Rnode5 = new TNode(nameNode,nameNode,v0R5,0.0,0.0, -offset + 2.0*offsetFibers,0);
v0Rnode5->SetLineColor(kColorVZERO);
fNodes->Add(v0Rnode5);
ndetR++;
sprintf(nameNode,"SUBDER%d",ndetR);
v0Rnode0->cd();
- v0Rnode6 = new TNode(nameNode,nameNode,v0R6,0.0,0.0, -offset + 4.0*offsetFibers,0);
+ v0Rnode6 = new TNode(nameNode,nameNode,v0R6,0.0,0.0, -offset + 2.0*offsetFibers,0);
v0Rnode6->SetLineColor(kColorVZERO);
fNodes->Add(v0Rnode6);
ndetR++;
// Creates materials used for geometry
- Int_t i;
-
- printf("\n");
- for(i=0;i<25;i++) printf("*");
- printf(" VZERO create materials ");
- for(i=0;i<26;i++) printf("*");
- printf("\n");
+ AliDebug(2,"VZERO create materials");
/*
Float_t ppckov[14] = { 5.5e-9, 5.7e-9, 5.9e-9, 6.1e-9, 6.3e-9, 6.5e-9, 6.7e-9,
Int_t *idtmed = fIdtmed->GetArray()-2999;
-// TGeant3 *geant3 = (TGeant3*) gMC;
// Parameters related to Quarz (SiO2) :
Float_t zscin[2] = {1.,6.};
Float_t wscin[2] = {1.,1.};
Float_t denscin = 1.032;
-
+
+// AIR
+
+ Float_t aAir[4]={12.,14.,16.,36.};
+ Float_t zAir[4]={6.,7.,8.,18.};
+ Float_t wAir[4]={0.000124,0.755267,0.231781,0.012827};
+ Float_t dAir = 1.20479E-3;
+
// Definition of materials :
- AliMaterial( 1, "AIR A$", 14.61, 7.3, .001205, 30420., 67500, 0, 0);
- AliMaterial(11, "AIR I$", 14.61, 7.3, .001205, 30420., 67500, 0, 0);
+ AliMixture( 1, "AIR A$", aAir,zAir,dAir,4,wAir);
+ AliMixture(11, "AIR I$", aAir,zAir,dAir,4,wAir);
AliMaterial( 2, "CARBON$" , 12.01, 6.0, 2.265, 18.8, 49.9, 0, 0);
AliMixture( 3, "QUA", aqua, zqua, densqua, nlmatqua, wmatqua);
AliMaterial( 4, "ALUMINIUM1$", 26.98, 13., 2.7, 8.9, 37.2, 0, 0);
}
//_____________________________________________________________________________
-void AliVZEROv2::DrawModule()
+void AliVZEROv2::DrawModule() const
{
// Drawing is done in DrawVZERO.C
- Int_t i;
-
- printf("\n");
- for(i=0;i<30;i++) printf("*");
- printf(" VZERO DrawModule ");
- for(i=0;i<30;i++) printf("*");
- printf("\n");
-
+ AliDebug(2,"VZERO DrawModule");
}
// Initialises version 2 of the VZERO Detector
// Just prints an information message
- printf(" VZERO version %d initialized \n",IsVersion());
+ AliInfo(Form("VZERO version %d initialized",IsVersion()));
// gMC->SetMaxStep(fMaxStepAlu);
// gMC->SetMaxStep(fMaxStepQua);
vol[2] = gMC->CurrentVolID(copy);
vol[3] = copy;
-
- if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R1") ||
- gMC->CurrentVolID(copy) == gMC->VolId("V0L1") )
+ static Int_t idV0R1 = gMC->VolId("V0R1");
+ static Int_t idV0L1 = gMC->VolId("V0L1");
+ static Int_t idV0R2 = gMC->VolId("V0R2");
+ static Int_t idV0L2 = gMC->VolId("V0L2");
+ static Int_t idV0R3 = gMC->VolId("V0R3");
+ static Int_t idV0L3 = gMC->VolId("V0L3");
+ static Int_t idV0R4 = gMC->VolId("V0R4");
+ static Int_t idV0L4 = gMC->VolId("V0L4");
+ static Int_t idV0R5 = gMC->VolId("V0R5");
+ static Int_t idV0L5 = gMC->VolId("V0L5");
+ static Int_t idV0R6 = gMC->VolId("V0R6");
+ static Int_t idV0L6 = gMC->VolId("V0L6");
+
+ if ( gMC->CurrentVolID(copy) == idV0R1 ||
+ gMC->CurrentVolID(copy) == idV0L1 )
ringNumber = 1.0;
- else if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R2") ||
- gMC->CurrentVolID(copy) == gMC->VolId("V0L2") )
+ else if ( gMC->CurrentVolID(copy) == idV0R2 ||
+ gMC->CurrentVolID(copy) == idV0L2 )
ringNumber = 2.0;
- else if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R3") ||
- gMC->CurrentVolID(copy) == gMC->VolId("V0L3") )
+ else if ( gMC->CurrentVolID(copy) == idV0R3 ||
+ gMC->CurrentVolID(copy) == idV0L3 )
ringNumber = 3.0;
- else if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R4") ||
- gMC->CurrentVolID(copy) == gMC->VolId("V0L4") )
+ else if ( gMC->CurrentVolID(copy) == idV0R4 ||
+ gMC->CurrentVolID(copy) == idV0L4 )
ringNumber = 4.0;
- else if ( gMC->CurrentVolID(copy) == gMC->VolId("V0R5") ||
- gMC->CurrentVolID(copy) == gMC->VolId("V0L5") ||
- gMC->CurrentVolID(copy) == gMC->VolId("V0L6") ||
- gMC->CurrentVolID(copy) == gMC->VolId("V0R6") )
+ else if ( gMC->CurrentVolID(copy) == idV0R5 ||
+ gMC->CurrentVolID(copy) == idV0L5 ||
+ gMC->CurrentVolID(copy) == idV0R6 ||
+ gMC->CurrentVolID(copy) == idV0L6 )
ringNumber = 5.0;
else
ringNumber = 0.0;
step = gMC->TrackStep();
eloss += destep;
tlength += step;
-
-
+
if ( gMC->IsTrackEntering() ) {
gMC->TrackPosition(pos);
Double_t pt = TMath::Sqrt(tc);
Double_t pmom = TMath::Sqrt(tc+mom[2]*mom[2]);
theta = Float_t(TMath::ATan2(pt,Double_t(mom[2])))*kRaddeg;
- phi = Float_t(TMath::ATan2(Double_t(mom[1]),Double_t(mom[0])))*kRaddeg;
+ phi = Float_t(TMath::ATan2(Double_t(pos[1]),Double_t(pos[0])))*kRaddeg;
+
+////////////////////////////////////////////////////////////////////////////
+ Float_t angle1 = Float_t(TMath::ATan2(Double_t(pos[1]),Double_t(pos[0])))*kRaddeg;
+ if(angle1 < 0.0) angle1 = angle1 + 360.0;
+ //PH AliDebug(2,Form("RingNumber, copy, phi1 = %f %d %f \n", ringNumber,vol[1],angle1));
+////////////////////////////////////////////////////////////////////////////
+
ipart = gMC->TrackPid();
char branchname[10];
sprintf(branchname,"%s",GetName());
- printf(" fBufferSize = %d \n",fBufferSize);
+ AliDebug(2,Form("fBufferSize = %d",fBufferSize));
const char *cH = strstr(option,"H");
if (fHits && TreeH() && cH) {
TreeH()->Branch(branchname,&fHits, fBufferSize);
- printf("* AliDetector::MakeBranch * Making Branch %s for hits\n",branchname);
+ AliDebug(2,Form("Making Branch %s for hits",branchname));
}
const char *cD = strstr(option,"D");
if (fDigits && fLoader->TreeD() && cD) {
fLoader->TreeD()->Branch(branchname,&fDigits, fBufferSize);
- printf("* AliDetector::MakeBranch * Making Branch %s for digits\n",branchname);
+ AliDebug(2,Form("Making Branch %s for digits",branchname));
}
}