* about the suitability of this software for any purpose. It is *
* provided "as is" without express or implied warranty. *
**************************************************************************/
-
/* $Id$ */
//_________________________________________________________________________
// Implementation version v0 of EMCAL Manager class
// An object of this class does not produce hits nor digits
// It is the one to use if you do not want to produce outputs in TREEH or TREED
-//
+// This class places a Geometry of the EMCAL in the ALICE Detector as defined in AliEMCALGeometry.cxx
//*-- Author: Yves Schutz (SUBATECH)
//*-- and : Sahal Yacoob (LBL / UCT)
+// This Version of AliEMCALv0 reduces the number of volumes placed in XEN1 (the envelope) to less than five hundred
+// The Envelope is Placed in Alice, And the Aluminium layer. Mini envelopes (XU) are then placed in XEN1.
+// Each mini envelope contains 2 scintillator, and 2 lead layers, except the last one which contains just one scintillator layer.
+// At the moment I cannot place the 36 and above layers in the mini envelopes so all layers are still placed in XEN1
+
+
// --- ROOT system ---
+
#include "TPGON.h"
#include "TTUBS.h"
#include "TNode.h"
#include "TRandom.h"
#include "TGeometry.h"
-
// --- Standard library ---
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
-#include <strstream.h>
-#include <iostream.h>
+#include <Rstrstream.h>
+#include <Riostream.h>
// --- AliRoot header files ---
#include "AliEMCALGeometry.h"
#include "AliConst.h"
#include "AliRun.h"
-#include "AliMC.h"
ClassImp(AliEMCALv0)
//______________________________________________________________________
AliEMCALv0::AliEMCALv0(const char *name, const char *title):
- AliEMCAL(name,title){
- // Standard Constructor
+ AliEMCAL(name,title)
+{
+ // ctor : title is used to identify the layout
+ GetGeometry() ;
- if (strcmp(GetTitle(),"") != 0 )
- fGeom = AliEMCALGeometry::GetInstance(GetTitle(), "") ;
}
+
//______________________________________________________________________
-void AliEMCALv0::BuildGeometry(){
+void AliEMCALv0::BuildGeometry()
+{
// Display Geometry for display.C
const Int_t kColorArm1 = kBlue ;
- // make the container of Arm1
-
+ AliEMCALGeometry * geom = GetGeometry() ;
+
+ // Define the shape of the Calorimeter
+ TNode * top = gAlice->GetGeometry()->GetNode("alice") ;
new TTUBS("Envelop1", "Tubs that contains arm 1", "void",
- fGeom->GetEnvelop(0), // rmin
- fGeom->GetEnvelop(1) +30 , // rmax
- fGeom->GetEnvelop(2)/2.0, // half length in Z
- fGeom->GetArm1PhiMin(), // minimun phi angle
- fGeom->GetArm1PhiMax() // maximun phi angle
+ geom->GetEnvelop(0), // rmin
+ geom->GetEnvelop(1) +30 , // rmax
+ geom->GetEnvelop(2)/2.0, // half length in Z
+ geom->GetArm1PhiMin(), // minimun phi angle
+ geom->GetArm1PhiMax() // maximun phi angle
);
- // Arm 1 inside alice
- TNode * envelop1node = new TNode("Envelop1", "Arm1 Envelop", "Envelop1") ;
+
+ // Place the Node
+ top->cd();
+ TNode * envelop1node = new TNode("Envelop1", "Arm1 Envelop", "Envelop1"
+ ,0., 0., 0., "") ;
envelop1node->SetLineColor(kColorArm1) ;
fNodes->Add(envelop1node) ;
}
+
//______________________________________________________________________
-void AliEMCALv0::CreateGeometry(){
- // Create the EMCAL geometry for Geant
+void AliEMCALv0::CreateGeometry()
+{
+ // Create the EMCAL geometry for Geant
+ // Geometry of a tower
+ //|-----------------------------------------------------| XEN1
+ //| | | |
+ //| | Al thickness = GetAlFrontThickness() | |
+ //| | | |
+ //| | | |
+ //| | | |
+ //| ------------------------------------------------- |
+ //| | Air Gap = GetGap2Active() | |
+ //| | | |
+ //| ------------------------------------------------- |
+ //| | XU0 : XPST (PreShower e = GetPreSintThick() )| |
+ //| ------------------------------------------------- |
+ //| | XU0 : XPBX (PreShower e = GetPbRadThick() ) | |
+ //| ------------------------------------------------- |
+ //| | XU0 : XPST (PreShower e = GetPreSintThick() )| |
+ //| ------------------------------------------------- |
+ //| | XU0 : XPBX (PreShower e = GetPbRadThick() ) | |
+ //| ------------------------------------------------- |
+ //| | XU1 : XPST (Tower e = GetFullSintThick() ) | |
+ //| ------------------------------------------------- |
+ //| | XU1 : XPBX (Tower e = GetPbRadThick() ) | |
+ //| ------------------------------------------------- |
+ //| | XU1 : XPST (Tower e = GetFullSintThick() | |
+ //| ------------------------------------------------- |
+ //| | XU1 : XPBX (Tower e = GetPbRadThick() ) | |
+ //| ------------------------------------------------- |
+ //| etc ..... |
+ //| ------------------------------------------------- |
+ //| | XU10 : XPST (Tower e = GetFullSintThick() ) | |
+ //|-----------------------------------------------------|
+
+ Float_t etamin,etamax;
+ Float_t *dum=0;
- AliEMCALv0 *emcaltmp = (AliEMCALv0*)gAlice->GetModule("EMCAL") ;
+ AliEMCALGeometry * geom = GetGeometry() ;
- if ( emcaltmp == NULL ) {
- Warning("CreateGeometry","detector not found!");
- return;
+ if(!(geom->IsInitialized())){
+ Error("CreateGeometry","EMCAL Geometry class has not been set up.");
} // end if
+
// Get pointer to the array containing media indices
Int_t *idtmed = fIdtmed->GetArray() - 1599 ;
- // Create tube sectors that contains Arm 1 & 2
-
- Float_t envelopA[5] ;
- envelopA[0] = fGeom->GetEnvelop(0) ; // rmin
- envelopA[1] = fGeom->GetEnvelop(1) + 30 ; // rmax
- envelopA[2] = fGeom->GetEnvelop(2) / 2.0 ; // dz
- envelopA[3] = fGeom->GetArm1PhiMin() ; // minimun phi angle
- envelopA[4] = fGeom->GetArm1PhiMax() ; // maximun phi angle
-
- gMC->Gsvolu("XEN1", "TUBS ", idtmed[1599], envelopA, 5) ; //filled with air
-
- // Create a tube sector that contains active material Arm 1 & 2
-
- Float_t envelopB[10];
- Float_t envelopC[10];
- Float_t envelopD[10];
- envelopC[0] = envelopD[0] = envelopB[0] = fGeom->GetArm1PhiMin();
- envelopC[1] = envelopD[1] = envelopB[1] = fGeom->GetArm1PhiMax() -
- fGeom->GetArm1PhiMin();
- envelopC[2] = envelopD[2] = envelopB[2] = fGeom->GetNPhi() ;
- envelopD[3] = 2;
- envelopC[3] = 2;
- envelopB[3] = 2;
-
- envelopB[4] = (fGeom->GetEnvelop(0) + fGeom->GetGap2Active() + 1.59) /
- (tan(2*atan(exp(-0.7)))) ;
- envelopB[5] = fGeom->GetEnvelop(0) + fGeom->GetGap2Active(); //rmin
- envelopD[6] = envelopB[6] = envelopB[5] + 3.18; //rmax
- envelopB[7] = (fGeom->GetEnvelop(0) + fGeom->GetGap2Active()+ 1.59) /
- (tan(2*atan(exp(0.7)))) ;
- envelopB[8] = envelopB[5] ;
- envelopB[9] = envelopB[6] ;
-
- // filled with active material (average)
- gMC->Gsvolu("XALU", "PGON", idtmed[1602], envelopB, 10);
- // filled with active material (Polystyrene)
- gMC->Gsvolu("XPST", "PGON", idtmed[1601], 0, 0) ;
- gMC->Gsvolu("XPBX", "PGON", idtmed[1600], 0, 0) ; // filled with Lead
- gMC->Gsdvn("XPHI", "XPST", fGeom->GetNPhi(), 2) ; // Naming Phi divisions
-
Int_t idrotm = 1;
AliMatrix(idrotm, 90.0, 0., 90.0, 90.0, 0.0, 0.0) ;
- // Position ENV1 container in ALIC
+
+ // Create the EMCAL Mother Volume (a polygone) within which to place the Detector and named XEN1
+
+ Float_t envelopA[10];
+ envelopA[0] = geom->GetArm1PhiMin(); // minimum phi angle
+ envelopA[1] = geom->GetArm1PhiMax() - geom->GetArm1PhiMin(); // angular range in phi
+ envelopA[2] = geom->GetNPhi(); // number of sections in phi
+ envelopA[3] = 2; // 2 z coordinates
+ envelopA[4] = geom->ZFromEtaR(geom->GetEnvelop(0),
+ geom->GetArm1EtaMin()); // z coordinate 1
+ envelopA[5] = geom->GetEnvelop(0) ; // rmin at z1
+ envelopA[6] = geom->GetEnvelop(1) ; // rmax at z1
+ envelopA[7] = geom->ZFromEtaR(geom->GetEnvelop(0),
+ geom->GetArm1EtaMax()); // z coordinate 2
+ envelopA[8] = envelopA[5] ; // radii are the same.
+ envelopA[9] = envelopA[6] ; // radii are the same.
+
+ gMC->Gsvolu("XEN1", "PGON ", idtmed[1599], envelopA, 10) ; // Polygone filled with air
+
+ // Position the EMCAL Mother Volume (XEN1) in Alice (ALIC)
+
gMC->Gspos("XEN1", 1, "ALIC", 0.0, 0.0, 0.0, idrotm, "ONLY") ;
- // Position ARM1 into ENV1
- gMC->Gspos("XALU", 1, "XEN1", 0.0, 0.0, 0.0 , idrotm, "MANY") ;
+
+ if (fDebug==2)
+ Info("CreateGeometry","rXEN1 = %f, %f\n", envelopA[5], envelopA[6]);
+
+ // Create mini-envelopes which will contain the PreShower scintillator-Lead-scintillator-lead (XU0)
+
+ TString label = "XU0";
+
+ envelopA[5] = envelopA[5] + geom->GetGap2Active()
+ + geom->GetAlFrontThickness(); // rmin at z1
+ envelopA[4] = geom->ZFromEtaR(envelopA[5],
+ geom->GetArm1EtaMin()); // z coordinate 1
+ envelopA[7] = geom->ZFromEtaR(envelopA[5],
+ geom->GetArm1EtaMax()); // z coordinate 2
+ envelopA[6] = envelopA[5] + 2 * (geom->GetPreSintThick()
+ + geom->GetPbRadThick() ); // rmax at z1
+ envelopA[8] = envelopA[5] ; // radii are the same.
+ envelopA[9] = envelopA[6] ; // radii are the same.
+
+ gMC->Gsvolu(label.Data(), "PGON", idtmed[1599], envelopA, 10);// Polygone filled with air
+
+ // Position XU0 in XEN1
+
+ gMC->Gspos(label.Data(), 1, "XEN1", 0.0, 0.0, 0.0, idrotm, "ONLY");
+
+ if (fDebug==2)
+ Info("CreateGeometry","rXU0 = %f, %f\n", envelopA[5], envelopA[6]);
+
+ // Create mini-envelopes which will contain the Tower scintillator-Lead-scintillator-lead (XU1 -> XU9)
+
+ Float_t tseg = geom->GetFullSintThick()+geom->GetPbRadThick(); // thickness of scintillator+Pb
+
+ Int_t i ;
+ for (i = 1; i < ((geom->GetNLayers()-2)/2) + 1 ; i++ ){
+ label = "XU" ;
+ label += i ;
+ envelopA[5] = envelopA[6] ; // rmin at z1
+ envelopA[4] = geom->ZFromEtaR(envelopA[5],
+ geom->GetArm1EtaMin()); // z coordinate 1
+ envelopA[7] = geom->ZFromEtaR(envelopA[5],
+ geom->GetArm1EtaMax()); // z coordinate 2
+ envelopA[6] = envelopA[5] + 2 * tseg ; // rmax at z1
+ envelopA[8] = envelopA[5] ; // radii are the same.
+ envelopA[9] = envelopA[6] ; // radii are the same.
+
+ gMC->Gsvolu(label.Data(), "PGON", idtmed[1599], envelopA, 10);// Polygone filled with air
+
+ // Position XUi in XEN1
+
+ gMC->Gspos(label.Data(), 1, "XEN1", 0.0, 0.0, 0.0, idrotm, "ONLY") ;
- for (int i = 0; i < (fGeom->GetNLayers()); i++ ){
- envelopC[5] = envelopD[6] ; //rmin
- envelopC[6] = envelopD[6] + ((i > +2) ? 0.5 : 0.6) ; //rmax
+ if (fDebug==2)
+ Info("CreateGeometry","rXEN%d = %f, %f\n", i, envelopA[5], envelopA[6]);
+
+ } // end i
+
+
+ // Create one mini-envelope which will contain the last Tower scintillator (XU(nlayers-1)/2)
+
+ tseg = geom->GetFullSintThick() ;
+ label = "XU" ;
+ label += i ;
+ envelopA[5] = envelopA[6] ; // rmin at z1
+ envelopA[4] = geom->ZFromEtaR(envelopA[5],
+ geom->GetArm1EtaMin()); // z coordinate 1
+ envelopA[7] = geom->ZFromEtaR(envelopA[5],
+ geom->GetArm1EtaMax()); // z coordinate 2
+ envelopA[6] = envelopA[5] + tseg ; // rmax at z1
+ envelopA[8] = envelopA[5] ; // radii are the same.
+ envelopA[9] = envelopA[6] ; // radii are the same.
+
+ gMC->Gsvolu(label.Data(), "PGON", idtmed[1599], envelopA, 10); // Polygone filled with air
+
+ // Position XU10 in XEN1
+
+ gMC->Gspos(label.Data(), 1, "XEN1", 0.0, 0.0, 0.0, idrotm, "ONLY") ;
+
+ if (fDebug==2)
+ Info("CreateGeometry","rXEN%d = %f, %f\n", i, envelopA[5], envelopA[6]);
+
+ // Create the shapes of active material (LEAD/Aluminium/Scintillator)
+ // to be placed
+ Float_t envelopB[10]; // First Layer of Aluminium
+ Float_t envelopC[10]; // Scintillator Layers
+ Float_t envelopD[10]; // Lead Layers
+
+ envelopC[0] = envelopD[0] = envelopB[0] = envelopA[0] ; // starting position in Phi
+ envelopC[1] = envelopD[1] = envelopB[1] = envelopA[1] ; // angular range in phi
+ envelopC[2] = envelopD[2] = envelopB[2] = envelopA[2] ; // number of sections in Phi
+ envelopD[3] = envelopC[3] = envelopB[3] = envelopA[3] ; // 2 z coordinates
+
+ envelopB[4] = geom->ZFromEtaR(geom->GetEnvelop(0),
+ geom->GetArm1EtaMin()); // z co-ordinate 1
+ envelopB[5] = geom->GetEnvelop(0) ; // rmin at z1
+ envelopB[6] = envelopB[5] + geom->GetAlFrontThickness();// rmax at z1
+ envelopB[7] = geom->ZFromEtaR(geom->GetEnvelop(0),
+ geom->GetArm1EtaMax()); // z co-ordinate 2
+ envelopB[8] = envelopB[5] ; // radii are the same.
+ envelopB[9] = envelopB[6] ; // radii are the same.
+
+ // Define active volumes completely
+
+ gMC->Gsvolu("XALU", "PGON", idtmed[1602], envelopB, 10); // PGON filled with Al
+
+ gMC->Gspos("XALU", 1, "XEN1", 0.0, 0.0, 0.0 , idrotm, "ONLY") ; // Position Aluminium Layer in XEN1
+
+ gMC->Gsvolu("XPST", "PGON", idtmed[1601], dum, 0); // PGON filled with Scintillator (shape to be defined by GSPOSP)
+
+ gMC->Gsvolu("XPBX", "PGON", idtmed[1600], dum, 0); // PGON filled with Lead (shape to be defined by GSPOSP)
+
+ gMC->Gsdvn("XPHI", "XPST", geom->GetNPhi(), 2); // Divide eta section of scintillators into phi segments.
+
+ // Position alternatively scintillator and Lead Layers in XUi.
+
+ envelopD[6] = envelopB[6] + geom->GetGap2Active() ;// gap between Al layer and XU0
+
+ for (int i = 0; i < geom->GetNLayers() ; i++ ){
+ label = "XU" ;
+ label += static_cast<Int_t> (i/2) ; // we will place two layers (i = one layer) in each mini envelope)
+ envelopC[5] = envelopD[6] ; //rmin
+ envelopC[6] = envelopD[6] + ((i > 1) ? geom->GetFullSintThick() :
+ geom->GetPreSintThick());//rmax larger for first two layers (preshower)
envelopC[8] = envelopD[6] ; //rmin
- envelopC[9] = envelopD[6] + ((i > 2 ) ? 0.5 : 0.6) ; //rmax
- for (int j =0; j < (fGeom->GetNZ()) ; j++){
- envelopC[4] = envelopD[6]/tan(2*atan(exp(0.7-(j*1.4/
- (fGeom->GetNZ())))));
- envelopC[7] = envelopD[6]/tan(2*atan(exp(0.7-((j+1)*1.4/
- (fGeom->GetNZ())))));
- gMC->Gsposp("XPST",1+j+i*(fGeom->GetNZ()), "XEN1",
- 0.0, 0.0, 0.0 , idrotm, "ONLY", envelopC, 10);
+ envelopC[9] = envelopD[6] + ((i > 1 ) ? geom->GetFullSintThick() :
+ geom->GetPreSintThick());//rmax larger for first two layers (preshower)
+ for (int j =0; j < (geom->GetNEta()) ; j++){
+ etamin = geom->GetArm1EtaMin()+
+ (j*geom->GetDeltaEta());
+ etamax = geom->GetArm1EtaMin()+
+ ((j+1)*geom->GetDeltaEta());
+ envelopC[4] = geom->ZFromEtaR(envelopD[6],etamin); //z begin
+ envelopC[7] = geom->ZFromEtaR(envelopD[6],etamax);// z end
+
+ gMC->Gsposp("XPST",1+j+i*(geom->GetNEta()), label.Data(),
+ 0.0, 0.0, 0.0 , idrotm, "ONLY", envelopC, 10); // Position and define layer
} // end for j
- if (i < (fGeom->GetNLayers()-1)){
+
+ if (i < (geom->GetNLayers()-1)){ // except for the last XU which contains only one scintillator layer
envelopD[5] = envelopC[6] ; //rmin
- envelopD[6] = envelopC[6] + 0.5; //rmax
+ envelopD[6] = envelopC[6] + geom->GetPbRadThick(); //rmax
envelopD[8] = envelopC[6] ; //rmin
- envelopD[9] = envelopC[6] + 0.5; //rmax
- for (int j =0; j < (fGeom->GetNZ()) ; j++){
- envelopD[4] = envelopC[6]/tan(2*atan(exp(0.7-(j*1.4/
- (fGeom->GetNZ())))));
- envelopD[7] = envelopC[6]/tan(2*atan(exp(0.7-((j+1)*1.4/
- (fGeom->GetNZ())))));
- gMC->Gsposp("XPBX",1+ j+i*(fGeom->GetNZ()), "XEN1",
- 0.0, 0.0, 0.0 , idrotm, "MANY", envelopD, 10) ;
+ envelopD[9] = envelopC[6] + geom->GetPbRadThick(); //rmax
+ for (int j =0; j < (geom->GetNEta()) ; j++){
+ etamin = geom->GetArm1EtaMin()+
+ (j*geom->GetDeltaEta());
+ etamax = geom->GetArm1EtaMin()+
+ ((j+1)*geom->GetDeltaEta());
+ envelopD[4] = geom->ZFromEtaR(envelopC[6],etamin);//z begin
+ envelopD[7] = geom->ZFromEtaR(envelopC[6],etamax);// z end
+
+ // Position and Define Layer
+
+ gMC->Gsposp("XPBX",1+j+i*(geom->GetNEta()), label.Data(),
+ 0.0, 0.0, 0.0 , idrotm, "ONLY", envelopD, 10);
} // end for j
} // end if i
- } // for i
+ } // for i
}
+
//______________________________________________________________________
-void AliEMCALv0::Init(void){
+void AliEMCALv0::Init(void)
+{
// Just prints an information message
- Int_t i;
-
- cout << endl;
- for(i=0;i<35;i++) cout <<"*";
- cout << " EMCAL_INIT ";
- for(i=0;i<35;i++) cout << "*";
- cout << endl;
-
+
+ if(fDebug) {
+ TString message("\n") ;
+ message += "*****************************************" ;
+
// Here the EMCAL initialisation code (if any!)
-
- if (fGeom!=0)
- cout << "AliEMCAL" << Version() << " : EMCAL geometry intialized for "
- << fGeom->GetName() << endl ;
- else
- cout << "AliEMCAL" << Version() <<
- " : EMCAL geometry initialization failed !" << endl ;
- for(i=0;i<80;i++) printf("*");
- cout << endl;
+
+ AliEMCALGeometry * geom = GetGeometry() ;
+
+ if (geom!=0) {
+ message += "AliEMCAL " ;
+ message += Version() ;
+ message += "EMCAL geometry intialized for " ;
+ message += geom->GetName() ;
+ }
+ else {
+ message += "AliEMCAL " ;
+ message += Version() ;
+ message += "EMCAL geometry initialization failed !" ;
+ }
+ message += "*****************************************" ;
+ Info("Init", message.Data() ) ;
+ }
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff