]> git.uio.no Git - u/mrichter/AliRoot.git/blobdiff - EMCAL/AliEMCAL.cxx
DeltaPhi function corrected; Additional checks in GetKStar
[u/mrichter/AliRoot.git] / EMCAL / AliEMCAL.cxx
index 08ba931fd5d9c025cb086f169d9ed9fe3afef2af..de0a62278b9f14ef91c419193b4d27bc76a6257d 100644 (file)
 
 //_________________________________________________________________________
 // Base Class for EMCAL description:
-//    
-// 
+// This class contains material definitions    
+// for the EMCAL - It does not place the detector in Alice
 //*-- Author: Yves Schutz (SUBATECH) 
+//
+//*-- Additional Contributions: Sahal Yacoob (LBNL/UCT)
+//
 //////////////////////////////////////////////////////////////////////////////
 
-// --- Standard library ---
-#include <strstream.h>
-
 // --- ROOT system ---
-#include "TBranch.h" 
-#include "TClonesArray.h" 
-#include "TTree.h" 
+class TFile;
+#include <TFolder.h> 
+#include <TTree.h>
+#include <TVirtualMC.h> 
 
-// --- AliRoot header files ---
+// --- Standard library ---
 
+// --- AliRoot header files ---
+#include "AliMagF.h"
 #include "AliEMCAL.h"
-#include "AliEMCALGeometry.h"
-#include "AliMC.h"
+#include "AliEMCALLoader.h"
 #include "AliRun.h"
-#include "AliMagF.h"
+#include "AliEMCALSDigitizer.h"
+#include "AliEMCALDigitizer.h"
 
 ClassImp(AliEMCAL)
-
 //____________________________________________________________________________
 AliEMCAL::AliEMCAL():AliDetector()
 {
-  // ctor 
-  //We do not create objects, because these pointers will be overwritten during reading from file.
-  fGeom = 0;
-  fSDigits       = 0 ;
-  fDigits = 0;
+  // Default ctor 
+  fName="EMCAL";
+  fGeom = 0 ; 
 }
+
 //____________________________________________________________________________
-AliEMCAL::AliEMCAL(const char* name, const char* title): AliDetector(name,title) 
+AliEMCAL::AliEMCAL(const char* name, const char* title): AliDetector(name,title)
 {
-  // ctor : title is used to identify the layout
-  
-  // gets an instance of the geometry parameters class  
-  if (strcmp(GetTitle(),"") != 0 ) 
-    fGeom =  AliEMCALGeometry::GetInstance(GetTitle(), "") ; 
+  //   ctor : title is used to identify the layout
+  fGeom = 0;
 }
+
 //____________________________________________________________________________
 AliEMCAL::~AliEMCAL()
 {
-  // dtor
 
 }
 
+//____________________________________________________________________________
+void AliEMCAL::Copy(AliEMCAL & emcal)
+{
+  TObject::Copy(emcal) ; 
+}
+
+//____________________________________________________________________________
+AliDigitizer* AliEMCAL::CreateDigitizer(AliRunDigitizer* manager) const
+{
+  return new AliEMCALDigitizer(manager);
+}
+
 //____________________________________________________________________________
 void AliEMCAL::CreateMaterials()
 {
@@ -75,15 +84,22 @@ void AliEMCAL::CreateMaterials()
   // --- Air ---
   AliMaterial(0, "Air$", 14.61, 7.3, 0.001205, 30420., 67500., 0, 0) ;
 
+
   // --- Lead ---                                                                     
   AliMaterial(1, "Pb$", 207.2, 82, 11.35, 0.56, 0., 0, 0) ;
 
-  // --- Average properties of the active material ---                                                                     
-  AliMaterial(2, "EmcalMat$", fGeom->GetAmat(), 
-                             fGeom->GetZmat(),
-                             fGeom->GetDmat(),
-                             fGeom->GetRmat(), 
-                             0) ;
+
+  // --- The polysterene scintillator (CH) ---
+  Float_t aP[2] = {12.011, 1.00794} ;
+  Float_t zP[2] = {6.0, 1.0} ;
+  Float_t wP[2] = {1.0, 1.0} ;
+  Float_t dP = 1.032 ;
+
+  AliMixture(2, "Polystyrene$", aP, zP, dP, -2, wP) ;
+
+  // --- Aluminium ---
+  AliMaterial(3, "Al$", 26.98, 13., 2.7, 8.9, 999., 0, 0) ;
+  // ---         Absorption length is ignored ^
 
   // DEFINITION OF THE TRACKING MEDIA
 
@@ -91,69 +107,99 @@ void AliEMCAL::CreateMaterials()
   Int_t * idtmed = fIdtmed->GetArray() - 1599 ; 
   Int_t   isxfld = gAlice->Field()->Integ() ;
   Float_t sxmgmx = gAlice->Field()->Max() ;
+
 
    // Air                                                                           -> idtmed[1599] 
   AliMedium(0, "Air          $", 0, 0,
             isxfld, sxmgmx, 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ;
 
-  // The Lead                                                                       -> idtmed[1600]
+  // The Lead                                                                      -> idtmed[1600]
  
   AliMedium(1, "Lead      $", 1, 0,
             isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
 
-  // The Average properties of the active material                                  -> idtmed[1601]
+ // The scintillator of the CPV made of Polystyrene scintillator                   -> idtmed[1601]
+  AliMedium(2, "CPV scint.   $", 2, 1,
+            isxfld, sxmgmx, 10.0, 0.001, 0.1, 0.001, 0.001, 0, 0) ;
+
+  // Various Aluminium parts made of Al                                            -> idtmed[1602]
+  AliMedium(3, "Al parts     $", 3, 0,
+             isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.001, 0.001, 0, 0) ;
 
-  AliMedium(2, "EmcalMat  $", 2, 0,
-            isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
 
- // --- Set decent energy thresholds for gamma and electron tracking
+// --- Set decent energy thresholds for gamma and electron tracking
 
   // Tracking threshold for photons and electrons in Lead 
-  gMC->Gstpar(idtmed[1600], "CUTGAM",0.5E-4) ; 
-  gMC->Gstpar(idtmed[1600], "CUTELE",1.0E-4) ;
-  gMC->Gstpar(idtmed[1601], "CUTGAM",0.5E-4) ; 
-  gMC->Gstpar(idtmed[1601], "CUTELE",1.0E-4) ;
+  gMC->Gstpar(idtmed[1600],"CUTGAM",0.00008) ;
+  gMC->Gstpar(idtmed[1600],"CUTELE",0.001) ;
+  gMC->Gstpar(idtmed[1600],"BCUTE",0.0001) ;
 
   // --- Generate explicitly delta rays in Lead ---
   gMC->Gstpar(idtmed[1600], "LOSS",3.) ;
   gMC->Gstpar(idtmed[1600], "DRAY",1.) ;
-  gMC->Gstpar(idtmed[1601], "LOSS",3.) ;
-  gMC->Gstpar(idtmed[1601], "DRAY",1.) ;
+  gMC->Gstpar(idtmed[1600], "DCUTE",0.00001) ;
+  gMC->Gstpar(idtmed[1600], "DCUTM",0.00001) ;
+
+// --- in aluminium parts ---
+  gMC->Gstpar(idtmed[1602], "LOSS",3.) ;
+  gMC->Gstpar(idtmed[1602], "DRAY",1.) ;
+  gMC->Gstpar(idtmed[1602], "DCUTE",0.00001) ;
+  gMC->Gstpar(idtmed[1602], "DCUTM",0.00001) ;
+
+// --- and finally thresholds for photons and electrons in the scintillator ---
+  gMC->Gstpar(idtmed[1601],"CUTGAM",0.00008) ;
+  gMC->Gstpar(idtmed[1601],"CUTELE",0.001) ;
+  gMC->Gstpar(idtmed[1601],"BCUTE",0.0001) ;
+
 }
+      
 //____________________________________________________________________________
-void AliEMCAL::SetTreeAddress()
+void AliEMCAL::Hits2SDigits()  
 { 
+// create summable digits
+
+  AliEMCALSDigitizer* emcalDigitizer = 
+    new AliEMCALSDigitizer(fLoader->GetRunLoader()->GetFileName().Data()) ;
+  emcalDigitizer->SetEventRange(0, -1) ; // do all the events
+  emcalDigitizer->ExecuteTask() ;
+}
 
+//____________________________________________________________________________
+AliLoader* AliEMCAL::MakeLoader(const char* topfoldername)
+{
+//different behaviour than standard (singleton getter)
+// --> to be discussed and made eventually coherent
+ fLoader = new AliEMCALLoader(GetName(),topfoldername);
+ return fLoader;
+}
+
+//____________________________________________________________________________
+void AliEMCAL::SetTreeAddress()
+{ 
+  // Linking Hits in Tree to Hits array
   TBranch *branch;
   char branchname[20];
   sprintf(branchname,"%s",GetName());
   
   // Branch address for hit tree
-  TTree *treeH = gAlice->TreeH();
-  if (treeH && fHits) {
+  TTree *treeH = TreeH();
+  if (treeH) {
     branch = treeH->GetBranch(branchname);
-    if (branch) branch->SetAddress(&fHits);
+    if (branch) 
+      { 
+       if (fHits == 0x0) 
+         fHits= new TClonesArray("AliEMCALHit",1000);
+       branch->SetAddress(&fHits);
+      }
+    else
+      {
+       Warning("SetTreeAddress","<%s> Failed",GetName());
+      }
   }
-  // Branch address for digit tree
-  TTree *treeD = gAlice->TreeD();
-  
-  if(fDigits)
-    fDigits->Clear();
+}
 
-  if (treeD && fDigits) {
-    branch = treeD->GetBranch(branchname);
-    if (branch) branch->SetAddress(&fDigits);
-  }
 
-  if(fSDigits)
-    fSDigits->Clear();
 
-  if (gAlice->TreeS()  && fSDigits ) {
-    branch = gAlice->TreeS()->GetBranch("EMCAL");
-    if (branch) branch->SetAddress(&fSDigits) ;
-  } 
-}