-#include <iostream.h>
+/**************************************************************************
+ * 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. *
+ **************************************************************************/
+
+/*
+$Log$
+Revision 1.9 2002/10/22 14:45:45 alibrary
+Introducing Riostream.h
+
+Revision 1.8 2002/10/14 14:57:08 hristov
+Merging the VirtualMC branch to the main development branch (HEAD)
+
+Revision 1.3.8.2 2002/10/14 13:14:08 hristov
+Updating VirtualMC to v3-09-02
+
+Revision 1.7 2002/09/09 17:23:28 nilsen
+Minor changes in support of changes to AliITSdigitS?D class'.
+
+Revision 1.6 2002/08/21 22:09:58 nilsen
+Updated SPD simulation with difusion effects. ReWritten Hit to SDigits
+code.
+
+*/
+#include <Riostream.h>
#include <TRandom.h>
#include <TH1.h>
#include <TMath.h>
#include <TString.h>
#include <TParticle.h>
-
#include "AliRun.h"
#include "AliITS.h"
#include "AliITShit.h"
#include "AliITSdigit.h"
#include "AliITSmodule.h"
#include "AliITSMapA2.h"
+#include "AliITSpList.h"
#include "AliITSsimulationSPDdubna.h"
-#include "AliITSsegmentation.h"
-#include "AliITSresponse.h"
-
-
+#include "AliITSsegmentationSPD.h"
+#include "AliITSresponseSPDdubna.h"
+//#define DEBUG
ClassImp(AliITSsimulationSPDdubna)
////////////////////////////////////////////////////////////////////////
// December 20 1999
//
// AliITSsimulationSPDdubna is the simulation of SPDs
-//________________________________________________________________________
-
-
-AliITSsimulationSPDdubna::AliITSsimulationSPDdubna()
-{
- // constructor
- fResponse = 0;
- fSegmentation = 0;
- fMapA2=0;
- fHis = 0;
- fNoise=0.;
- fBaseline=0.;
- fNPixelsZ=0;
- fNPixelsX=0;
+//______________________________________________________________________
+
+
+AliITSsimulationSPDdubna::AliITSsimulationSPDdubna(){
+ // constructor
+
+ fResponse = 0;
+ fSegmentation = 0;
+ fMapA2 = 0;
+ fpList = 0;
+ fModule = 0;
+ fEvent = 0;
+ fHis = 0;
+ fNoise = 0.;
+ fBaseline = 0.;
+ fNPixelsZ = 0;
+ fNPixelsX = 0;
}
+//______________________________________________________________________
+AliITSsimulationSPDdubna::AliITSsimulationSPDdubna(AliITSsegmentation *seg,
+ AliITSresponse *resp){
+ // standard constructor
+ const Double_t kmictocm = 1.0e-4; // convert microns to cm.
+ fHis = 0;
+ fResponse = resp;
+ fSegmentation = seg;
+ fModule = 0;
+ fEvent = 0;
-//_____________________________________________________________________________
-
-AliITSsimulationSPDdubna::AliITSsimulationSPDdubna(AliITSsegmentation *seg, AliITSresponse *resp) {
- // standard constructor
+ fNPixelsZ=GetSeg()->Npz();
+ fNPixelsX=GetSeg()->Npx();
- fHis = 0;
- fResponse = resp;
- fSegmentation = seg;
+ GetResp()->GetNoiseParam(fNoise,fBaseline);
+ GetResp()->SetDistanceOverVoltage(kmictocm*GetSeg()->Dy(),50.0);
- fResponse->GetNoiseParam(fNoise,fBaseline);
+// fMapA2 = new AliITSMapA2(GetSeg());
+ fMapA2 = 0;
- fMapA2 = new AliITSMapA2(fSegmentation);
-
- //
-
- fNPixelsZ=fSegmentation->Npz();
- fNPixelsX=fSegmentation->Npx();
+ fpList = new AliITSpList(fNPixelsZ+1,fNPixelsX+1);
}
+//______________________________________________________________________
+AliITSsimulationSPDdubna::~AliITSsimulationSPDdubna(){
+ // destructor
-//_____________________________________________________________________________
-
-AliITSsimulationSPDdubna::~AliITSsimulationSPDdubna() {
- // destructor
+ if(fMapA2) delete fMapA2;
- delete fMapA2;
+ if (fHis) {
+ fHis->Delete();
+ delete fHis;
+ } // end if fHis
+}
+//______________________________________________________________________
+AliITSsimulationSPDdubna::AliITSsimulationSPDdubna(const
+ AliITSsimulationSPDdubna
+ &source){
+ // Copy Constructor
+ if(&source == this) return;
+ this->fMapA2 = source.fMapA2;
+ this->fNoise = source.fNoise;
+ this->fBaseline = source.fBaseline;
+ this->fNPixelsX = source.fNPixelsX;
+ this->fNPixelsZ = source.fNPixelsZ;
+ this->fHis = source.fHis;
+ return;
+}
+//______________________________________________________________________
+AliITSsimulationSPDdubna& AliITSsimulationSPDdubna::operator=(const
+ AliITSsimulationSPDdubna &source){
+ // Assignment operator
+ if(&source == this) return *this;
+ this->fMapA2 = source.fMapA2;
+ this->fNoise = source.fNoise;
+ this->fBaseline = source.fBaseline;
+ this->fNPixelsX = source.fNPixelsX;
+ this->fNPixelsZ = source.fNPixelsZ;
+ this->fHis = source.fHis;
+ return *this;
+}
+//______________________________________________________________________
+void AliITSsimulationSPDdubna::InitSimulationModule(Int_t module, Int_t event){
+ // This function creates maps to build the list of tracks for each
+ // summable digit.
+ //
+ // Inputs:
+ // Int_t module // Module number to be simulated
+ // Int_t event // Event number to be simulated
+ //
+ // Outputs:
+ // none
+ //
+ // Returns:
+ // none
- if (fHis) {
- fHis->Delete();
- delete fHis;
- }
+ fModule = module;
+ fEvent = event;
+// fMapA2->ClearMap();
+ fpList->ClearMap();
}
+//_____________________________________________________________________
+void AliITSsimulationSPDdubna::SDigitiseModule(AliITSmodule *mod, Int_t mask,
+ Int_t event){
+ // This function begins the work of creating S-Digits
+ //
+ // Inputs:
+ // AliITSmodule *mod // module
+ // Int_t mask // mask to be applied to the module
+ //
+ // Outputs:
+ // none
+ //
+ // Return:
+ // test // test returns kTRUE if the module contained hits
+ // // test returns kFALSE if it did not contain hits
+
+ Int_t module = 0;
+
+ if(!(mod->GetNhits())) return;// if module has no hits don't create Sdigits
+ fModule = mod->GetIndex();
+ HitToSDigit(mod, module, mask, fpList);
+ WriteSDigits(fpList);
+// fMapA2->ClearMap();
+ fpList->ClearMap();
+}
+//______________________________________________________________________
+void AliITSsimulationSPDdubna::WriteSDigits(AliITSpList *pList){
+ // This function adds each S-Digit to pList
+ //
+ // Inputs:
+ // AliITSpList *pList
+ //
+ // Outputs:
+ // none
+ //
+ // Return:
+ // none
+ Int_t ix, nix, iz, niz;
+ static AliITS *aliITS = (AliITS*)gAlice->GetModule("ITS");
+
+ pList->GetMaxMapIndex(niz, nix);
+ for(iz=0; iz<niz-1; iz++)for(ix=0; ix<nix-1; ix++){
+ if(pList->GetSignalOnly(iz+1,ix+1)>0.0){
+ aliITS->AddSumDigit(*(pList->GetpListItem(iz+1,ix+1)));
+#ifdef DEBUG
+ cout <<"SDigits " << iz << "," << ix << "," <<
+ *(pList->GetpListItem(iz+1,ix+1)) << endl;
+#endif
+ } // end if pList
+ } // end for iz,ix
+ return;
+}
+//______________________________________________________________________
+void AliITSsimulationSPDdubna::FinishSDigitiseModule(){
+ // This function calls SDigitsToDigits which creates Digits from SDigits
+ //
+ // Inputs:
+ // none
+ //
+ // Outputs:
+ // none
+ // Return
+ // none
+ SDigitsToDigits(fModule, fpList);
+ return;
+}
+//______________________________________________________________________
+void AliITSsimulationSPDdubna::SDigitsToDigits(Int_t module,
+ AliITSpList *pList){
+ // This function adds electronic noise to the S-Digits and then adds them
+ // to a new pList
+ //
+ // Inputs:
+ // Int_t module // module number
+ // AliITSpList *pList // pList
+ //
+ // Outputs:
+ // pList is passed along to the functions ChargeToSignal and GetList
+ //
+ // Return:
+ // none
-//__________________________________________________________________________
-AliITSsimulationSPDdubna::AliITSsimulationSPDdubna(const AliITSsimulationSPDdubna &source){
- // Copy Constructor
- if(&source == this) return;
- this->fMapA2 = source.fMapA2;
- this->fNoise = source.fNoise;
- this->fBaseline = source.fBaseline;
- this->fNPixelsX = source.fNPixelsX;
- this->fNPixelsZ = source.fNPixelsZ;
- this->fHis = source.fHis;
- return;
+ fModule = module;
+ ChargeToSignal(pList); // Charge To Signal both adds noise and
+// fMapA2->ClearMap();
+ pList->ClearMap();
}
+//______________________________________________________________________
+void AliITSsimulationSPDdubna::DigitiseModule(AliITSmodule *mod, Int_t module,
+ Int_t dummy){
+ // This function creates Digits straight from the hits and then adds
+ // electronic noise to the digits before adding them to pList
+ //
+ // Inputs:
+ // AliITSmodule *mod // module
+ // Int_t module // module number Dummy.
+ // Int_t dummy
+ //
+ // Outputs:
+ // Each of the input variables is passed along to HitToSDigit
+ //
+ // Return:
+ // none
+
+ fModule = mod->GetIndex(); //This calls the module for HitToSDigit
+ HitToSDigit(mod,fModule, dummy, fpList);
+ ChargeToSignal(fpList);
+// fMapA2->ClearMap();
+ fpList->ClearMap();
+}
+//______________________________________________________________________
+void AliITSsimulationSPDdubna::UpdateMapSignal(Int_t iz, Int_t ix, Int_t trk,
+ Int_t ht, Int_t module,
+ Double_t signal,
+ AliITSpList *pList){
+ // This function adds a signal to the pList from the pList class
+ //
+ // Inputs:
+ // Int_t iz // row number
+ // Int_t ix // column number
+ // Int_t trk // track number
+ // Int_t ht // hit number
+ // Double_t signal // signal strength
+ // AliITSpList *pList // pList
+ //
+ // Outputs:
+ // All of the inputs are passed to AliITSpList::AddSignal
+ // Int_t ix // row number
+ // Int_t iz // column number
+ // Double_t sig // signal strength
+ // // These three variables are defined to preserve the
+ // // assignments used in the function AliITSMapA2::AddSignal
+ //
+ // Return:
+ // none
-//_________________________________________________________________________
-AliITSsimulationSPDdubna&
- AliITSsimulationSPDdubna::operator=(const AliITSsimulationSPDdubna &source) {
- // Assignment operator
- if(&source == this) return *this;
- this->fMapA2 = source.fMapA2;
- this->fNoise = source.fNoise;
- this->fBaseline = source.fBaseline;
- this->fNPixelsX = source.fNPixelsX;
- this->fNPixelsZ = source.fNPixelsZ;
- this->fHis = source.fHis;
- return *this;
- }
-//_____________________________________________________________________________
-
-void AliITSsimulationSPDdubna::DigitiseModule(AliITSmodule *mod, Int_t module, Int_t dummy)
-{
- // digitize module
+// fMapA2->AddSignal(iz, ix, signal);
+ pList->AddSignal(iz+1,ix+1, trk, ht, fModule, signal);
+}
+//______________________________________________________________________
+void AliITSsimulationSPDdubna::UpdateMapNoise(Int_t iz,
+ Int_t ix, Int_t fModule,
+ Double_t sig, Float_t noise,
+ AliITSpList *pList){
+ // This function adds noise to data in the MapA2 as well as the pList
+ //
+ // Inputs:
+ // Int_t iz // row number
+ // Int_t ix // column number
+ // Int_t mod // module number
+ // Double_t sig // signal strength
+ // Double_t noise // electronic noise generated by ChargeToSignal
+ // AliITSpList *pList // pList
+ //
+ // Outputs:
+ // All of the inputs are passed to AliITSMapA2::AddSignal or
+ // AliITSpList::AddNoise
+ //
+ // Return:
+ // none
+// fMapA2->AddSignal(iz, ix, noise);
+ pList->AddNoise(iz+1,ix+1, fModule, noise);
+}
+//______________________________________________________________________
+void AliITSsimulationSPDdubna::HitToDigit(AliITSmodule *mod, Int_t module,
+ Int_t dummy){
+ DigitiseModule(mod, module, dummy);
+}
+//______________________________________________________________________
+void AliITSsimulationSPDdubna::HitToSDigit(AliITSmodule *mod, Int_t module,
+ Int_t dummy,AliITSpList *pList){
+ // Does the charge distributions using Gaussian diffusion charge charing.
+ const Double_t kmictocm = 1.0e-4; // convert microns to cm.
+ TObjArray *hits = mod->GetHits();
+ Int_t nhits = hits->GetEntriesFast();
+ Int_t h,ix,iz;
+ Int_t idtrack;
+ Double_t x0=0.0,x1=0.0,y0=0.0,y1=0.0,z0=0.0,z1=0.0,de=0.0;
+ Double_t x,y,z,t,tp,st,dt=0.2,el,sig;
+ Double_t thick = kmictocm*GetSeg()->Dy();
+
+ if(nhits<=0) return;
+ for(h=0;h<nhits;h++){
+#ifdef DEBUG
+ cout << "Hits=" << h << "," << *(mod->GetHit(h)) << endl;
+#endif
+ if(mod->LineSegmentL(h,x0,x1,y0,y1,z0,z1,de,idtrack)){
+ st =TMath::Sqrt(x1*x1+y1*y1+z1*z1);
+ if(st>0.0){
+ st = (Double_t)((Int_t)(1.0E+04*st)); // number of microns
+ if(st<=0.0) st = 1.0;
+ dt = 1.0/st;
+ for(t=0;t<1.0;t+=dt){ // Integrate over t
+ tp = t+0.5*dt;
+ el = GetResp()->GeVToCharge((Float_t)(dt*de));
+#ifdef DEBUG
+ if(el<=0.0) cout << "el="<<el<<" dt="<<dt<<" de="<<de<<endl;
+#endif
+ x = x0+x1*tp;
+ y = y0+y1*tp;
+ z = z0+z1*tp;
+ GetSeg()->LocalToDet(x,z,ix,iz);
+ sig = GetResp()->SigmaDiffusion1D(thick + y);
+ SpreadCharge(x,y,z,ix,iz,el,sig,idtrack,
+ mod->GetHitTrackIndex(h),h,mod->GetIndex());
+ } // end for t
+ } else { // st == 0.0 deposit it at this point
+ el = GetResp()->GeVToCharge((Float_t)de);
+ x = x0;
+ y = y0;
+ z = z0;
+ GetSeg()->LocalToDet(x,z,ix,iz);
+ sig = GetResp()->SigmaDiffusion1D(thick + y);
+ SpreadCharge(x,y,z,ix,iz,el,sig,
+ idtrack,mod->GetHitTrackIndex(h),h,mod->GetIndex());
+ } // end if st>0.0
+ }} // Loop over all hits h
+}/*
+//______________________________________________________________________
+void AliITSsimulationSPDdubna::HitToSDigit(AliITSmodule *mod, Int_t module,
+ Int_t dummy,AliITSpList *pList){
+ // Does the charge distributions using Gaussian diffusion charge charing.
+ const Double_t kmictocm = 1.0e-4; // convert microns to cm.
+ TObjArray *hits = mod->GetHits();
+ Int_t nhits = hits->GetEntriesFast();
+ Int_t h,ix,iz,i,n;
+ Int_t idtrack;
+ Double_t x0=0.0,x1=0.0,y0=0.0,y1=0.0,z0=0.0,z1=0.0,de=0.0;
+ Double_t x,y,z,*ta,t,tp,st,dt=0.2,el,sig;
+ Double_t thick = kmictocm*GetSeg()->Dy();
+
+ if(nhits<=0) return;
+ for(h=0;h<nhits;h++){
+#ifdef DEBUG
+ cout << "Hits=" << h << "," << *(mod->GetHit(h)) << endl;
+#endif
+ if(mod->LineSegmentL(h,x0,x1,y0,y1,z0,z1,de,idtrack)){
+ st =TMath::Sqrt(x1*x1+y1*y1+z1*z1);
+ if(st>0.0){
+ st =TMath::Sqrt(x1*x1+y1*y1+z1*z1)*(ta[i+1]-ta[i]);
+ ta = CreateFindCellEdges(x0,x1,z0,z1,n);
+ for(i=0;i<n-1;i++){
+ dt = TMath::Min((1.0E-4)/st,);
+ for(t=ta[i];t<ta[i+1];t+=dt){ // Integrate over t
+ tp = t+0.5*dt;
+ el = GetResp()->GeVToCharge((Float_t)(dt*de));
+#ifdef DEBUG
+ if(el<=0.0) cout << "el="<<el<<" dt="<<dt<<" de="<<de<<endl;
+#endif
+ x = x0+x1*tp;
+ y = y0+y1*tp;
+ z = z0+z1*tp;
+ GetSeg()->LocalToDet(x,z,ix,iz);
+ sig = GetResp()->SigmaDiffusion1D(thick + y);
+ SpreadCharge(x,y,z,ix,iz,el,sig,idtrack,
+ mod->GetHitTrackIndex(h),h,mod->GetIndex());
+ } // end for t[i]
+ delete[] t;
+ } else { // st == 0.0 deposit it at this point
+ el = GetResp()->GeVToCharge((Float_t)de);
+ x = x0;
+ y = y0;
+ z = z0;
+ GetSeg()->LocalToDet(x,z,ix,iz);
+ sig = GetResp()->SigmaDiffusion1D(thick + y);
+ SpreadCharge(x,y,z,ix,iz,el,sig,
+ idtrack,mod->GetHitTrackIndex(h),h,mod->GetIndex());
+ } // end if st>0.0
+ }} // Loop over all hits h
+ }*/
+//______________________________________________________________________
+void AliITSsimulationSPDdubna::SpreadCharge(Double_t x0,Double_t y0,
+ Double_t z0,Int_t ix0,Int_t iz0,
+ Double_t el,Double_t sig,Int_t t,
+ Int_t ti,Int_t hi,Int_t mod){
+ // Spreads the charge over neighboring cells. Assume charge is distributed
+ // as charge(x,z) = (el/2*pi*sig*sig)*exp(-arg)
+ // arg=((x-x0)*(x-x0)/2*sig*sig)+((z-z0*z-z0)/2*sig*sig)
+ // Defined this way, the integral over all x and z is el.
+ const Int_t knx = 3,knz = 2;
+ const Double_t kRoot2 = 1.414213562; // Sqrt(2).
+ const Double_t kmictocm = 1.0e-4; // convert microns to cm.
+ Int_t ix,iz,ixs,ixe,izs,ize;
+ Float_t x,z;
+ Double_t x1,x2,z1,z2,s,sp;
+
+ if(sig<=0.0) {
+ fpList->AddSignal(iz0+1,ix0+1,t,hi,mod,el);
+ return;
+ } // end if
+ sp = 1.0/(sig*kRoot2);
+#ifdef DEBUG
+ cout << "sig=" << sig << " sp=" << sp << endl;
+#endif
+ ixs = TMath::Max(-knx+ix0,0);
+ ixe = TMath::Min(knx+ix0,GetSeg()->Npx()-1);
+ izs = TMath::Max(-knz+iz0,0);
+ ize = TMath::Min(knz+iz0,GetSeg()->Npz()-1);
+ for(ix=ixs;ix<=ixe;ix++) for(iz=izs;iz<=ize;iz++){
+ GetSeg()->DetToLocal(ix,iz,x,z); // pixel center
+ x1 = x;
+ z1 = z;
+ x2 = x1 + 0.5*kmictocm*GetSeg()->Dpx(ix); // Upper
+ x1 -= 0.5*kmictocm*GetSeg()->Dpx(ix); // Lower
+ z2 = z1 + 0.5*kmictocm*GetSeg()->Dpz(iz); // Upper
+ z1 -= 0.5*kmictocm*GetSeg()->Dpz(iz); // Lower
+ x1 -= x0; // Distance from where track traveled
+ x2 -= x0; // Distance from where track traveled
+ z1 -= z0; // Distance from where track traveled
+ z2 -= z0; // Distance from where track traveled
+ s = 0.25; // Correction based on definision of Erfc
+ s *= TMath::Erfc(sp*x1) - TMath::Erfc(sp*x2);
+#ifdef DEBUG
+ cout << "el=" << el << " ix0=" << ix0 << " ix=" << ix << " x0="<< x <<
+ " iz0=" << iz0 << " iz=" << iz << " z0=" << z <<
+ " sp*x1=" << sp*x1 <<" sp*x2=" << sp*x2 << " s=" << s;
+#endif
+ s *= TMath::Erfc(sp*z1) - TMath::Erfc(sp*z2);
+#ifdef DEBUG
+ cout << " sp*z1=" << sp*z1 <<" sp*z2=" << sp*z2 << " s=" << s << endl;
+#endif
+ fpList->AddSignal(iz+1,ix+1,t,hi,mod,s*el);
+ } // end for ix, iz
+}
+//______________________________________________________________________
+Double_t *AliITSsimulationSPDdubna::CreateFindCellEdges(Double_t x0,Double_t x1,
+ Double_t z0,Double_t z1,Int_t &n){
+ // Note: This function is a potensial source for a memory leak. The memory
+ // pointed to in its return, must be deleted.
+ // Inputs:
+ // Double_t x0 The starting location of the track step in x
+ // Double_t x1 The distance allong x for the track step
+ // Double_t z0 The starting location of the track step in z
+ // Double_t z1 The distance allong z for the track step
+ // Output:
+ // Int)t &n The size of the array returned. Minimal n=2.
+ // Return:
+ // The pointer to the array of track steps.
+ Int_t ix0,ix1,ix,iz0,iz1,iz,i;
+ Double_t x,z,lx,ux,lz,uz,a,b,c,d;
+ Double_t *t;
+
+ GetSeg()->LocalToDet(x0,z0,ix0,iz0);
+ GetSeg()->LocalToDet(x1,z1,ix1,iz1);
+ n = 2 + TMath::Abs(ix1-ix0) + TMath::Abs(iz1-iz0);
+ t = new Double_t[n];
+ t[0] = 0.0;
+ t[n-1] = 1.0;
+ x = x0;
+ z = z0;
+ for(i=1;i<n-1;i++){
+ GetSeg()->LocalToDet(x,z,ix,iz);
+ GetSeg()->CellBoundries(ix,iz,lx,ux,lz,uz);
+ a = (lx-x0)/x1;
+ if(a<=t[i-1]) a = 1.0;
+ b = (ux-x0)/x1;
+ if(b<=t[i-1]) b = 1.0;
+ c = (lz-z0)/z1;
+ if(c<=t[i-1]) c = 1.0;
+ d = (uz-z0)/z1;
+ if(d<=t[i-1]) d = 1.0;
+ t[i] = TMath::Min(TMath::Min(TMath::Min(a,b),c),d);
+ x = x0+x1*(t[i]*1.00000001);
+ z = z0+z1*(t[i]*1.00000001);
+ i++;
+ } // end for i
+ return t;
+}
+//______________________________________________________________________
+void AliITSsimulationSPDdubna::HitToSDigitOld(AliITSmodule *mod, Int_t module,
+ Int_t dummy, AliITSpList *pList){
+ // digitize module
const Float_t kEnToEl = 2.778e+8; // GeV->charge in electrons
// for 3.6 eV/pair
const Float_t kconv = 10000.; // cm -> microns
- Float_t spdLength = fSegmentation->Dz();
- Float_t spdWidth = fSegmentation->Dx();
- Float_t spdThickness = fSegmentation->Dy();
+ Float_t spdLength = GetSeg()->Dz();
+ Float_t spdWidth = GetSeg()->Dx();
+ Float_t spdThickness = GetSeg()->Dy();
Float_t difCoef, dum;
- fResponse->DiffCoeff(difCoef,dum);
+ GetResp()->DiffCoeff(difCoef,dum);
if(spdThickness > 290) difCoef = 0.00613;
Float_t zPix0 = 1e+6;
Float_t xPix0 = 1e+6;
Float_t yPrev = 1e+6;
- Float_t zPitch = fSegmentation->Dpz(0);
- Float_t xPitch = fSegmentation->Dpx(0);
+ Float_t zPitch = GetSeg()->Dpz(0);
+ Float_t xPitch = GetSeg()->Dpx(0);
TObjArray *fHits = mod->GetHits();
+ module = mod->GetIndex();
Int_t nhits = fHits->GetEntriesFast();
if (!nhits) return;
-
- cout<<"len,wid,thickness,nx,nz,pitchx,pitchz,difcoef ="<<spdLength<<","<<spdWidth<<","<<spdThickness<<","<<fNPixelsX<<","<<fNPixelsZ<<","<<xPitch<<","<<zPitch<<","<<difCoef<<endl;
- // Array of pointers to the label-signal list
-
- Int_t maxNDigits = fNPixelsX*fNPixelsZ + fNPixelsX ;;
- Float_t **pList = new Float_t* [maxNDigits];
- memset(pList,0,sizeof(Float_t*)*maxNDigits);
+#ifdef DEBUG
+ cout<<"len,wid,thickness,nx,nz,pitchx,pitchz,difcoef ="<<spdLength<<","
+ <<spdWidth<<","<<spdThickness<<","<<fNPixelsX<<","<<fNPixelsZ<<","
+ <<xPitch<<","<<zPitch<<","<<difCoef<<endl;
+#endif
+ // Array of pointers to the label-signal list
Int_t indexRange[4] = {0,0,0,0};
// Fill detector maps with GEANT hits
Int_t lasttrack=-2;
Int_t hit, iZi, jz, jx;
Int_t idhit=-1; //!
+#ifdef DEBUG
cout<<"SPDdubna: module,nhits ="<<module<<","<<nhits<<endl;
+#endif
for (hit=0;hit<nhits;hit++) {
AliITShit *iHit = (AliITShit*) fHits->At(hit);
+#ifdef DEBUG
+ cout << "Hits=" << hit << "," << *iHit << endl;
+#endif
//Int_t layer = iHit->GetLayer();
Float_t yPix0 = -spdThickness/2;
//Int_t parent = iHit->GetParticle()->GetFirstMother();
Int_t partcode = iHit->GetParticle()->GetPdgCode();
-// partcode (pdgCode): 11 - e-, 13 - mu-, 22 - gamma, 111 - pi0, 211 - pi+
-// 310 - K0s, 321 - K+, 2112 - n, 2212 - p, 3122 - lambda
-
- /*
- Float_t px = iHit->GetPXL(); // the momenta at the
- Float_t py = iHit->GetPYL(); // each GEANT step
- Float_t pz = iHit->GetPZL();
- Float_t ptot = 1000*sqrt(px*px+py*py+pz*pz);
- */
+ // partcode (pdgCode): 11 - e-, 13 - mu-, 22 - gamma, 111 - pi0,
+ // 211 - pi+, 310 - K0s, 321 - K+, 2112 - n, 2212 - p, 3122 - lambda
Float_t pmod = iHit->GetParticle()->P(); // total momentum at the
// vertex
pmod *= 1000;
-
if(partcode == 11 && pmod < 6) dray = 1; // delta ray is e-
// at p < 6 MeV/c
-
// Get hit z and x(r*phi) cordinates for each module (detector)
// in local system.
// Check boundaries
if(zPix > spdLength/2) {
- //cout<<"!!! SPD: z outside ="<<zPix<<endl;
- zPix = spdLength/2 - 10;
+#ifdef DEBUG
+ cout<<"!!! SPD: z outside ="<<zPix<<endl;
+#endif
+ zPix = spdLength/2 - 10;
}
if(zPix < 0 && zPix < -spdLength/2) {
- //cout<<"!!! SPD: z outside ="<<zPix<<endl;
- zPix = -spdLength/2 + 10;
+#ifdef DEBUG
+ cout<<"!!! SPD: z outside ="<<zPix<<endl;
+#endif
+ zPix = -spdLength/2 + 10;
}
if(xPix > spdWidth/2) {
- //cout<<"!!! SPD: x outside ="<<xPix<<endl;
- xPix = spdWidth/2 - 10;
+#ifdef DEBUG
+ cout<<"!!! SPD: x outside ="<<xPix<<endl;
+#endif
+ xPix = spdWidth/2 - 10;
}
if(xPix < 0 && xPix < -spdWidth/2) {
- //cout<<"!!! SPD: x outside ="<<xPix<<endl;
- xPix = -spdWidth/2 + 10;
+#ifdef DEBUG
+ cout<<"!!! SPD: x outside ="<<xPix<<endl;
+#endif
+ xPix = -spdWidth/2 + 10;
}
Int_t trdown = 0;
// enter Si or after event in Si
if (status == 66 ) {
- zPix0 = zPix;
- xPix0 = xPix;
- yPrev = yPix;
- }
+ zPix0 = zPix;
+ xPix0 = xPix;
+ yPrev = yPix;
+ } // end if status == 66
Float_t depEnergy = iHit->GetIonization();
// skip if the input point to Si
// if track returns to the opposite direction:
if (yPix < yPrev) {
trdown = 1;
- }
-
+ } // end if yPix < yPrev
// take into account the holes diffusion inside the Silicon
// the straight line between the entrance and exit points in Si is
// divided into the several steps; the diffusion is considered
// for each end point of step and charge
// is distributed between the pixels through the diffusion.
-
// ---------- the diffusion in Z (beam) direction -------
-
Float_t charge = depEnergy*kEnToEl; // charge in e-
Float_t drPath = 0.;
Float_t tang = 0.;
if(nsteps < 20) nsteps = 20; // minimum number of the steps
if (projDif < 5 ) {
- drPath = (yPix-yPix0)*1.e-4;
- drPath = TMath::Abs(drPath); // drift path in cm
- sigmaDif = difCoef*sqrt(drPath); // sigma diffusion in cm
- sigmaDif = sigmaDif*kconv; // sigma diffusion in microns
- nsteps = 1;
- }
+ drPath = (yPix-yPix0)*1.e-4;
+ drPath = TMath::Abs(drPath); // drift path in cm
+ sigmaDif = difCoef*sqrt(drPath); // sigma diffusion in cm
+ sigmaDif = sigmaDif*kconv; // sigma diffusion in microns
+ nsteps = 1;
+ } // end if projDif < 5
if(projDif > 5) tang = ydif/projDif;
Float_t dCharge = charge/nsteps; // charge in e- for one step
Float_t dZ = zdif/nsteps;
Float_t dX = xdif/nsteps;
- for (iZi = 1;iZi <= nsteps;iZi++) {
- Float_t dZn = iZi*dZ;
+ for (iZi = 1; iZi <= nsteps;iZi++) {
+ Float_t dZn = iZi*dZ;
Float_t dXn = iZi*dX;
Float_t zPixn = zPix0 + dZn;
Float_t xPixn = xPix0 + dXn;
if(projDif >= 5) {
- Float_t dProjn = sqrt(dZn*dZn+dXn*dXn);
- drPath = dProjn*tang*1.e-4; // drift path for iZi step in cm
- if(trdown == 0) {
- drPath = TMath::Abs(drPath) + ydif0*1.e-4;
- }
- if(trdown == 1) {
- drPath = ydif0*1.e-4 - TMath::Abs(drPath);
- drPath = TMath::Abs(drPath);
- }
- sigmaDif = difCoef*sqrt(drPath);
- sigmaDif = sigmaDif*kconv; // sigma diffusion in microns
- }
+ Float_t dProjn = sqrt(dZn*dZn+dXn*dXn);
+ drPath = dProjn*tang*1.e-4; // drift path for iZi+1 step in cm
+ if(trdown == 0) {
+ drPath = TMath::Abs(drPath) + ydif0*1.e-4;
+ }// end if trdow ==0
+ if(trdown == 1) {
+ drPath = ydif0*1.e-4 - TMath::Abs(drPath);
+ drPath = TMath::Abs(drPath);
+ } // end if trdown == 1
+ sigmaDif = difCoef*sqrt(drPath);
+ sigmaDif = sigmaDif*kconv; // sigma diffusion in microns
+ } // end if projdif >= 5
zPixn = (zPixn + spdLength/2.);
xPixn = (xPixn + spdWidth/2.);
Int_t nZpix, nXpix;
- fSegmentation->GetPadIxz(xPixn,zPixn,nXpix,nZpix);
- zPitch = fSegmentation->Dpz(nZpix);
- fSegmentation->GetPadTxz(xPixn,zPixn);
+ GetSeg()->GetPadIxz(xPixn,zPixn,nXpix,nZpix);
+ zPitch = GetSeg()->Dpz(nZpix);
+ GetSeg()->GetPadTxz(xPixn,zPixn);
// set the window for the integration
Int_t jzmin = 1;
Int_t jzmax = 3;
for(jz=jzmin; jz <=jzmax; jz++) {
if(jz == 1) {
- dZprev = -zPitch - dZleft;
- dZnext = -dZleft;
- }
- if(jz == 2) {
- dZprev = -dZleft;
- dZnext = dZright;
- }
- if(jz == 3) {
- dZprev = dZright;
- dZnext = dZright + zPitch;
- }
+ dZprev = -zPitch - dZleft;
+ dZnext = -dZleft;
+ } else if(jz == 2) {
+ dZprev = -dZleft;
+ dZnext = dZright;
+ } else if(jz == 3) {
+ dZprev = dZright;
+ dZnext = dZright + zPitch;
+ } // end if jz
// kz changes from 1 to the fNofPixels(270)
Int_t kz = nZpix + jz -2;
// ----------- holes diffusion in X(r*phi) direction --------
if(dZCharge > 1.) {
- for(jx=jxmin; jx <=jxmax; jx++) {
- if(jx == 1) {
- dXprev = -xPitch - dXleft;
- dXnext = -dXleft;
- }
- if(jx == 2) {
- dXprev = -dXleft;
- dXnext = dXright;
- }
- if(jx == 3) {
- dXprev = dXright;
- dXnext = dXright + xPitch;
- }
- Int_t kx = nXpix + jx -2;
-
- Float_t xArg1 = dXprev/sigmaDif;
- Float_t xArg2 = dXnext/sigmaDif;
- Float_t xProb1 = TMath::Erfc(xArg1);
- Float_t xProb2 = TMath::Erfc(xArg2);
- Float_t dXCharge =0.5*(xProb1-xProb2)*dZCharge;
-
- if(dXCharge > 1.) {
- Int_t index = kz-1;
-
- if (first) {
- indexRange[0]=indexRange[1]=index;
- indexRange[2]=indexRange[3]=kx-1;
- first=kFALSE;
- }
-
- indexRange[0]=TMath::Min(indexRange[0],kz-1);
- indexRange[1]=TMath::Max(indexRange[1],kz-1);
- indexRange[2]=TMath::Min(indexRange[2],kx-1);
- indexRange[3]=TMath::Max(indexRange[3],kx-1);
-
- // build the list of digits for this module
- Double_t signal=fMapA2->GetSignal(index,kx-1);
- signal+=dXCharge;
- fMapA2->SetHit(index,kx-1,(double)signal);
- } // dXCharge > 1 e-
- } // jx loop
+ for(jx=jxmin; jx <=jxmax; jx++) {
+ if(jx == 1) {
+ dXprev = -xPitch - dXleft;
+ dXnext = -dXleft;
+ } else if(jx == 2) {
+ dXprev = -dXleft;
+ dXnext = dXright;
+ } else if(jx == 3) {
+ dXprev = dXright;
+ dXnext = dXright + xPitch;
+ } // end if jx
+ Int_t kx = nXpix + jx -2;
+ Float_t xArg1 = dXprev/sigmaDif;
+ Float_t xArg2 = dXnext/sigmaDif;
+ Float_t xProb1 = TMath::Erfc(xArg1);
+ Float_t xProb2 = TMath::Erfc(xArg2);
+ Float_t dXCharge =0.5*(xProb1-xProb2)*dZCharge;
+
+ if(dXCharge > 1.) {
+ if (first) {
+ indexRange[0]=indexRange[1]=kz-1;
+ indexRange[2]=indexRange[3]=kx-1;
+ first=kFALSE;
+ } // end if first
+ indexRange[0]=TMath::Min(indexRange[0],kz-1);
+ indexRange[1]=TMath::Max(indexRange[1],kz-1);
+ indexRange[2]=TMath::Min(indexRange[2],kx-1);
+ indexRange[3]=TMath::Max(indexRange[3],kx-1);
+/*
+ // build the list of digits for this module
+ Double_t signal = fMapA2->GetSignal(kz-1,kx-1);
+ signal+=dXCharge;
+ fMapA2->SetHit(kz-1,kx-1,(double)signal);
+*/
+ // The calling sequence for UpdateMapSignal was
+ // moved into the (dx > 1 e-) loop because it
+ // needs to call signal which is defined inside
+ // this loop
+ fModule = module;//Defined because functions
+ // called by UpdateMapSignal
+ // expect module to be an
+ // integer
+ UpdateMapSignal(kz-1,kx-1,
+// mod->GetHitTrackIndex(hit),
+ ((AliITShit*)(mod->GetHit(hit)))->GetTrack(),
+ hit,fModule,dXCharge,pList);
+ } // dXCharge > 1 e-
+ } // jx loop
} // dZCharge > 1 e-
} // jz loop
} // iZi loop
-
if (status == 65) { // the step is inside of Si
- zPix0 = zPix;
- xPix0 = xPix;
- }
- yPrev = yPix;
-
- if(dray == 0) {
- GetList(itrack,idhit,pList,indexRange);
- }
-
- lasttrack=itrack;
+ zPix0 = zPix;
+ xPix0 = xPix;
+ } // end if status == 65
+ yPrev = yPix;
} // hit loop inside the module
-
-
- // introduce the electronics effects and do zero-suppression
- ChargeToSignal(pList);
-
- // clean memory
-
- fMapA2->ClearMap();
-
-
-}
-
-//---------------------------------------------
-void AliITSsimulationSPDdubna::GetList(Int_t label,Int_t idhit,Float_t **pList,Int_t *indexRange)
-{
- // lop over nonzero digits
-
-
- //set protection
- for(int k=0;k<4;k++) {
- if (indexRange[k] < 0) indexRange[k]=0;
- }
-
- for(Int_t iz=indexRange[0];iz<indexRange[1]+1;iz++){
- for(Int_t ix=indexRange[2];ix<indexRange[3]+1;ix++){
-
- Float_t signal=fMapA2->GetSignal(iz,ix);
-
- if (!signal) continue;
-
- Int_t globalIndex = iz*fNPixelsX+ix; // GlobalIndex starts from 0!
- if(!pList[globalIndex]){
-
- //
- // Create new list (9 elements - 3 signals and 3 tracks + 3 hits)
- //
-
- pList[globalIndex] = new Float_t [9];
-
- // set list to -3
-
- *pList[globalIndex] = -3.;
- *(pList[globalIndex]+1) = -3.;
- *(pList[globalIndex]+2) = -3.;
- *(pList[globalIndex]+3) = 0.;
- *(pList[globalIndex]+4) = 0.;
- *(pList[globalIndex]+5) = 0.;
- *(pList[globalIndex]+6) = -1.;
- *(pList[globalIndex]+7) = -1.;
- *(pList[globalIndex]+8) = -1.;
-
-
- *pList[globalIndex] = (float)label;
- *(pList[globalIndex]+3) = signal;
- *(pList[globalIndex]+6) = (float)idhit;
- }
- else{
-
- // check the signal magnitude
-
- Float_t highest = *(pList[globalIndex]+3);
- Float_t middle = *(pList[globalIndex]+4);
- Float_t lowest = *(pList[globalIndex]+5);
-
- signal -= (highest+middle+lowest);
-
- //
- // compare the new signal with already existing list
- //
-
- if(signal<lowest) continue; // neglect this track
-
- if (signal>highest){
- *(pList[globalIndex]+5) = middle;
- *(pList[globalIndex]+4) = highest;
- *(pList[globalIndex]+3) = signal;
-
- *(pList[globalIndex]+2) = *(pList[globalIndex]+1);
- *(pList[globalIndex]+1) = *pList[globalIndex];
- *pList[globalIndex] = label;
-
- *(pList[globalIndex]+8) = *(pList[globalIndex]+7);
- *(pList[globalIndex]+7) = *(pList[globalIndex]+6);
- *(pList[globalIndex]+6) = idhit;
- }
- else if (signal>middle){
- *(pList[globalIndex]+5) = middle;
- *(pList[globalIndex]+4) = signal;
-
- *(pList[globalIndex]+2) = *(pList[globalIndex]+1);
- *(pList[globalIndex]+1) = label;
-
- *(pList[globalIndex]+8) = *(pList[globalIndex]+7);
- *(pList[globalIndex]+7) = idhit;
- }
- else{
- *(pList[globalIndex]+5) = signal;
- *(pList[globalIndex]+2) = label;
- *(pList[globalIndex]+8) = idhit;
- }
- }
- } // end of loop pixels in x
- } // end of loop over pixels in z
-
-
}
-
-
-//---------------------------------------------
-void AliITSsimulationSPDdubna::ChargeToSignal(Float_t **pList)
-{
- // add noise and electronics, perform the zero suppression and add the
- // digit to the list
-
- AliITS *aliITS = (AliITS*)gAlice->GetModule("ITS");
-
-
- Float_t threshold = (float)fResponse->MinVal();
-
- Int_t digits[3], tracks[3], hits[3],gi,j1;
- Float_t charges[3];
- Float_t electronics;
- Float_t signal,phys;
- for(Int_t iz=0;iz<fNPixelsZ;iz++){
- for(Int_t ix=0;ix<fNPixelsX;ix++){
- electronics = fBaseline + fNoise*gRandom->Gaus();
- signal = (float)fMapA2->GetSignal(iz,ix);
- signal += electronics;
- gi =iz*fNPixelsX+ix; // global index
- if (signal > threshold) {
- digits[0]=iz;
- digits[1]=ix;
- digits[2]=1;
- for(j1=0;j1<3;j1++){
- if (pList[gi]) {
- //b.b. tracks[j1]=-3;
- tracks[j1] = (Int_t)(*(pList[gi]+j1));
- hits[j1] = (Int_t)(*(pList[gi]+j1+6));
- }else {
- tracks[j1]=-2; //noise
- hits[j1] = -1;
- }
- charges[j1] = 0;
- }
-
- if(tracks[0] == tracks[1] && tracks[0] == tracks[2]) {
- tracks[1] = -3;
- hits[1] = -1;
- tracks[2] = -3;
- hits[2] = -1;
- }
- if(tracks[0] == tracks[1] && tracks[0] != tracks[2]) {
- tracks[1] = -3;
- hits[1] = -1;
- }
- if(tracks[0] == tracks[2] && tracks[0] != tracks[1]) {
- tracks[2] = -3;
- hits[2] = -1;
- }
- if(tracks[1] == tracks[2] && tracks[0] != tracks[1]) {
- tracks[2] = -3;
- hits[2] = -1;
- }
-
- phys=0;
- aliITS->AddSimDigit(0,phys,digits,tracks,hits,charges);
- }
- if(pList[gi]) delete [] pList[gi];
- }
- }
- delete [] pList;
-
+//______________________________________________________________________
+void AliITSsimulationSPDdubna::ChargeToSignal(AliITSpList *pList){
+ // add noise and electronics, perform the zero suppression and add the
+ // digit to the list
+ static AliITS *aliITS = (AliITS*)gAlice->GetModule("ITS");
+ Float_t threshold = (float)GetResp()->MinVal();
+ Int_t j;
+// Int_t digits[3], tracks[3], hits[3];
+// Float_t charges[3];
+ Float_t electronics;
+// Float_t phys;
+ Double_t sig;
+ const Int_t nmaxtrk=AliITSdigitSPD::GetNTracks();
+ static AliITSdigitSPD dig;
+
+ for(Int_t iz=0; iz<fNPixelsZ; iz++){
+ for(Int_t ix=0; ix<fNPixelsX; ix++){
+ electronics = fBaseline + fNoise*gRandom->Gaus();
+ sig = pList->GetSignalOnly(iz+1,ix+1);
+ UpdateMapNoise(iz,ix,fModule,sig,electronics,pList);
+#ifdef DEBUG
+// cout << sig << "+" << electronics <<">threshold=" << threshold
+// << endl;
+#endif
+ if (sig+electronics > threshold) {
+ dig.fCoord1 = iz;
+ dig.fCoord2 = ix;
+ dig.fSignal = 1;
+ dig.fSignalSPD = (Int_t) pList->GetSignal(iz+1,ix+1);
+ /*
+ digits[0] = iz;
+ digits[1] = ix;
+ digits[2] = 1; */
+ for(j=0;j<nmaxtrk;j++){
+// charges[j] = 0.0;
+ if (j<pList->GetNEnteries()) {
+ dig.fTracks[j] = pList->GetTrack(iz+1,ix+1,j);
+ dig.fHits[j] = pList->GetHit(iz+1,ix+1,j);
+ /*
+ tracks[j] = pList->GetTrack(iz+1,ix+1,j);
+ hits[j] = pList->GetHit(iz+1,ix+1,j);
+ */
+ }else { // Default values
+ dig.fTracks[j] = -3;
+ dig.fHits[j] = -1;
+/* tracks[j] = -2; //noise
+ hits[j] = -1; */
+ } // end if pList
+ } // end for j
+// charges[0] = (Float_t) pList->GetSumSignal(iz+1,ix+1);
+/*
+ if(tracks[0] == tracks[1] && tracks[0] == tracks[2]) {
+ tracks[1] = -3;
+ hits[1] = -1;
+ tracks[2] = -3;
+ hits[2] = -1;
+ } else if(tracks[0] == tracks[1] && tracks[0] != tracks[2]) {
+ tracks[1] = -3;
+ hits[1] = -1;
+ } else if(tracks[0] == tracks[2] && tracks[0] != tracks[1]) {
+ tracks[2] = -3;
+ hits[2] = -1;
+ } else if(tracks[1] == tracks[2] && tracks[0] != tracks[1]) {
+ tracks[2] = -3;
+ hits[2] = -1;
+ } // end if
+*/
+// phys = 0.0;
+#ifdef DEBUG
+ cout << iz << "," << ix << "," <<
+ *(pList->GetpListItem(iz+1,ix+1)) << endl;
+#endif
+// aliITS->AddSimDigit(0, phys, digits, tracks, hits, charges);
+ aliITS->AddSimDigit(0,&dig);
+ } //
+ } //
+ } //
}
-
-
-//____________________________________________
-
-void AliITSsimulationSPDdubna::CreateHistograms()
-{
- // create 1D histograms for tests
-
- printf("SPD - create histograms\n");
-
- fHis=new TObjArray(fNPixelsZ);
- TString spdName("spd_");
- for (Int_t i=0;i<fNPixelsZ;i++) {
- Char_t pixelz[4];
- sprintf(pixelz,"%d",i+1);
- spdName.Append(pixelz);
- (*fHis)[i] = new TH1F(spdName.Data(),"SPD maps",
- fNPixelsX,0.,(Float_t) fNPixelsX);
- }
+//______________________________________________________________________
+void AliITSsimulationSPDdubna::CreateHistograms(){
+ // create 1D histograms for tests
+
+ printf("SPD - create histograms\n");
+
+ fHis=new TObjArray(fNPixelsZ);
+ TString spdName("spd_");
+ for (Int_t i=0;i<fNPixelsZ;i++) {
+ Char_t pixelz[4];
+ sprintf(pixelz,"%d",i+1);
+ spdName.Append(pixelz);
+ //PH (*fHis)[i] = new TH1F(spdName.Data(),"SPD maps",
+ //PH fNPixelsX,0.,(Float_t) fNPixelsX);
+ fHis->AddAt(new TH1F(spdName.Data(),"SPD maps",
+ fNPixelsX,0.,(Float_t) fNPixelsX), i);
+ } // end for i
}
-
-//____________________________________________
-
-void AliITSsimulationSPDdubna::ResetHistograms()
-{
+//______________________________________________________________________
+void AliITSsimulationSPDdubna::ResetHistograms(){
//
// Reset histograms for this detector
//
for ( int i=0;i<fNPixelsZ;i++ ) {
- if ((*fHis)[i]) ((TH1F*)(*fHis)[i])->Reset();
- }
-
+ //PH if ((*fHis)[i]) ((TH1F*)(*fHis)[i])->Reset();
+ if (fHis->At(i)) ((TH1F*)fHis->At(i))->Reset();
+ } // end for i
}
-
-
-
-
-
-
-
-
-
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff