#include <stdlib.h>
#include <Riostream.h>
#include <TObjArray.h>
+#include <TRandom.h>
+
#include "AliITSmodule.h"
#include "AliITSMapA2.h"
#include "AliITSpList.h"
#include "AliITSgeom.h"
#include "AliITSsimulationSSD.h"
#include "AliITSTableSSD.h"
-//#include "AliITSresponseSSD.h"
ClassImp(AliITSsimulationSSD)
////////////////////////////////////////////////////////////////////////
// //
// Author: Enrico Fragiacomo //
// enrico.fragiacomo@ts.infn.it //
-// Last revised: march 2006 //
+// Last revised: june 2008 //
// //
// AliITSsimulationSSD is the simulation of SSD. //
////////////////////////////////////////////////////////////////////////
this->fDriftVel[1] = s.fDriftVel[1];
return *this;
}
+/*
//______________________________________________________________________
AliITSsimulation& AliITSsimulationSSD::operator=(
const AliITSsimulation &s){
return *this;
}
+*/
//______________________________________________________________________
AliITSsimulationSSD::AliITSsimulationSSD(const AliITSsimulationSSD &source):
AliITSsimulation(source),
AliITSsegmentationSSD* seg = (AliITSsegmentationSSD*)GetSegmentationModel(2);
- TObjArray *hits = mod->GetHits();
- Int_t nhits = hits->GetEntriesFast();
- if (nhits<=0) return;
- AliITSTableSSD * tav = new AliITSTableSSD(GetNStrips());
- module = mod->GetIndex();
- if ( mod->GetLayer() == 6 ) seg->SetLayer(6);
- if ( mod->GetLayer() == 5 ) seg->SetLayer(5);
- for(Int_t i=0; i<nhits; i++) {
- // LineSegmentL returns 0 if the hit is entering
- // If hits is exiting returns positions of entering and exiting hits
- // Returns also energy loss
- if(GetDebug(4)){
- cout << i << " ";
- cout << mod->GetHit(i)->GetXL() << " "<<mod->GetHit(i)->GetYL();
- cout << " " << mod->GetHit(i)->GetZL();
- cout << endl;
- } // end if
- if (mod->LineSegmentL(i, x0, x1, y0, y1, z0, z1, de, idtrack)) {
- HitToDigit(module, x0, y0, z0, x1, y1, z1, de,tav);
- if (lasttrack != idtrack || i==(nhits-1)) {
- GetList(idtrack,i,module,pList,tav);
- } // end if
- lasttrack=idtrack;
+ TObjArray *hits = mod->GetHits();
+ Int_t nhits = hits->GetEntriesFast();
+ if (nhits<=0) return;
+ AliITSTableSSD * tav = new AliITSTableSSD(GetNStrips());
+ module = mod->GetIndex();
+ if ( mod->GetLayer() == 6 ) seg->SetLayer(6);
+ if ( mod->GetLayer() == 5 ) seg->SetLayer(5);
+ for(Int_t i=0; i<nhits; i++) {
+ // LineSegmentL returns 0 if the hit is entering
+ // If hits is exiting returns positions of entering and exiting hits
+ // Returns also energy loss
+ if(GetDebug(4)){
+ cout << i << " ";
+ cout << mod->GetHit(i)->GetXL() << " "<<mod->GetHit(i)->GetYL();
+ cout << " " << mod->GetHit(i)->GetZL();
+ cout << endl;
+ } // end if
+ if (mod->LineSegmentL(i, x0, x1, y0, y1, z0, z1, de, idtrack)) {
+ HitToDigit(module, x0, y0, z0, x1, y1, z1, de,tav);
+ if (lasttrack != idtrack || i==(nhits-1)) {
+ GetList(idtrack,i,module,pList,tav);
} // end if
- } // end loop over hits
- delete tav; tav=0;
- return;
+ lasttrack=idtrack;
+ } // end if
+ } // end loop over hits
+ delete tav; tav=0;
+ return;
}
//----------------------------------------------------------------------
void AliITSsimulationSSD::HitToDigit(Int_t module, Double_t x0, Double_t y0,
AliITSsegmentationSSD* seg = (AliITSsegmentationSSD*)GetSegmentationModel(2);
// Turns hits in SSD module into one or more digits.
- Float_t tang[2] = {0.0,0.0};
- seg->Angles(tang[0], tang[1]);//stereo<<->tan(stereo)~=stereo
+ //Float_t tang[2] = {0.0,0.0};
+ //seg->Angles(tang[0], tang[1]);//stereo<<->tan(stereo)~=stereo
Double_t x, y, z;
Double_t dex=0.0, dey=0.0, dez=0.0;
Double_t pairs; // pair generation energy per step.
// Enery loss is equally distributed among steps
de = de/numOfSteps;
pairs = de/GetIonizeE(); // e-h pairs generated
+
+ //-----------------------------------------------------
+ // stepping
+ //-----------------------------------------------------
for(Int_t j=0; j<numOfSteps; j++) { // stepping
+
x = x0 + (j+0.5)*dex;
y = y0 + (j+0.5)*dey;
if ( y > (seg->Dy()/2+10)*1.0E-4 ) {
// check if particle is within the detector
Warning("HitToDigit",
- "hit out of detector y0=%e,y=%e,dey=%e,j =%e module=%d",
- y0,y,dey,j,module);
+ "hit out of detector y0=%e,y=%e,dey=%e,j =%d module=%d, exceed=%e",
+ y0,y,dey,j,module, y-(seg->Dy()/2+10)*1.0E-4);
return;
} // end if
z = z0 + (j+0.5)*dez;
+
if(GetDebug(4)) cout <<"HitToDigit "<<x<<" "<<y<<" "<<z<< " "
<<dex<<" "<<dey<<" "<<dez<<endl;
+
+ if(seg->GetLayer()==6) {
+ y=-y; // Lay6 module has sensor up-side-down!!!
+ }
+
+ // w is the coord. perpendicular to the strips
+ // Float_t xp=x*1.e+4,zp=z*1.e+4; // microns
+ Float_t xp=x,zp=z;
+ seg->GetPadTxz(xp,zp);
+
+ Int_t k;
+ //---------------------------------------------------------
+ // Pside
+ //------------------------------------------------------------
+ k=0;
+
// calculate drift time
// y is the minimum path
tdrift[0] = (y+(seg->Dy()*1.0E-4)/2)/GetDriftVelocity(0);
+
+ w = xp; // P side strip number
+
+ if((w<(-0.5)) || (w>(GetNStrips()-0.5))) {
+ // this check rejects hits in regions not covered by strips
+ // 0.5 takes into account boundaries
+ if(GetDebug(4)) cout << "Dead SSD region, x,z="<<x<<","<<z<<endl;
+ return; // There are dead region on the SSD sensitive volume!!!
+ } // end if
+
+ // sigma is the standard deviation of the diffusion gaussian
+ if(tdrift[k]<0) return;
+
+ sigma[k] = TMath::Sqrt(2*GetDiffConst(k)*tdrift[k]);
+ sigma[k] /= (GetStripPitch()*1.0E-4); //units of Pitch
+
+ if(sigma[k]==0.0) {
+ Error("HitToDigit"," sigma[%d]=0",k);
+ exit(0);
+ } // end if
+
+ par0[k] = pairs;
+ // we integrate the diffusion gaussian from -3sigma to 3sigma
+ inf[k] = w - 3*sigma[k]; // 3 sigma from the gaussian average
+ sup[k] = w + 3*sigma[k]; // 3 sigma from the gaussian average
+ // IntegrateGaussian does the actual
+ // integration of diffusion gaussian
+ IntegrateGaussian(k, par0[k], w, sigma[k], inf[k], sup[k],tav);
+
+ //------------------------------------------------------
+ // end Pside
+ //-------------------------------------------------------
+
+ //------------------------------------------------------
+ // Nside
+ //-------------------------------------------------------
+ k=1;
tdrift[1] = ((seg->Dy()*1.0E-4)/2-y)/GetDriftVelocity(1);
- for(Int_t k=0; k<2; k++) { // both sides remember: 0=Pside 1=Nside
-
- tang[k]=TMath::Tan(tang[k]);
-
- // w is the coord. perpendicular to the strips
- Float_t xp=x*1.e+4,zp=z*1.e+4; // microns
- seg->GetPadTxz(xp,zp);
- if(k==0) w = xp; // P side strip number
- else w = zp; // N side strip number
-
- if((w<(-0.5)) || (w>(GetNStrips()-0.5))) {
- // this check rejects hits in regions not covered by strips
- // 0.5 takes into account boundaries
- if(GetDebug(4)) cout << "x,z="<<x<<","<<z<<" w="<<w
- <<" Nstrips="<<GetNStrips()<<endl;
- return; // There are dead region on the SSD sensitive volume.
- } // end if
-
+ //tang[k]=TMath::Tan(tang[k]);
+
+ w = zp; // N side strip number
+
+ if((w<(-0.5)) || (w>(GetNStrips()-0.5))) {
+ // this check rejects hits in regions not covered by strips
+ // 0.5 takes into account boundaries
+ if(GetDebug(4)) cout << "Dead SSD region, x,z="<<x<<","<<z<<endl;
+ return; // There are dead region on the SSD sensitive volume.
+ } // end if
+
// sigma is the standard deviation of the diffusion gaussian
- if(tdrift[k]<0) return;
- sigma[k] = TMath::Sqrt(2*GetDiffConst(k)*tdrift[k]);
- sigma[k] /= (GetStripPitch()*1.0E-4); //units of Pitch
- if(sigma[k]==0.0) {
- Error("HitToDigit"," sigma[%d]=0",k);
- exit(0);
- } // end if
-
- par0[k] = pairs;
- // we integrate the diffusion gaussian from -3sigma to 3sigma
- inf[k] = w - 3*sigma[k]; // 3 sigma from the gaussian average
- sup[k] = w + 3*sigma[k]; // 3 sigma from the gaussian average
- // IntegrateGaussian does the actual
- // integration of diffusion gaussian
- IntegrateGaussian(k, par0[k], w, sigma[k], inf[k], sup[k],tav);
- } // end for loop over side (0=Pside, 1=Nside)
+ if(tdrift[k]<0) return;
+
+ sigma[k] = TMath::Sqrt(2*GetDiffConst(k)*tdrift[k]);
+ sigma[k] /= (GetStripPitch()*1.0E-4); //units of Pitch
+
+ if(sigma[k]==0.0) {
+ Error("HitToDigit"," sigma[%d]=0",k);
+ exit(0);
+ } // end if
+
+ par0[k] = pairs;
+ // we integrate the diffusion gaussian from -3sigma to 3sigma
+ inf[k] = w - 3*sigma[k]; // 3 sigma from the gaussian average
+ sup[k] = w + 3*sigma[k]; // 3 sigma from the gaussian average
+ // IntegrateGaussian does the actual
+ // integration of diffusion gaussian
+ IntegrateGaussian(k, par0[k], w, sigma[k], inf[k], sup[k],tav);
+
+ //-------------------------------------------------
+ // end Nside
+ //-------------------------------------------------
+
+
} // end stepping
}
Int_t ix;
Double_t signal,noise;
AliITSCalibrationSSD* res =(AliITSCalibrationSSD*)GetCalibrationModel(module);
-
+
// Pside
for(ix=0;ix<GetNStrips();ix++){ // loop over strips
// noise is gaussian
- noise = (Double_t) gRandom->Gaus(0,res->GetNoiseP().At(ix));
+ noise = (Double_t) gRandom->Gaus(0,res->GetNoiseP(ix));
// need to calibrate noise
// NOTE. noise from the calibration database comes uncalibrated,
// noise comes in ADC channels from the calibration database
// It needs to be converted back to electronVolts
- noise /= res->GetDEvToADC(1.);
+ noise /= res->GetSSDDEvToADC(1.);
// Finally, noise is added to the signal
signal = noise + fMapA2->GetSignal(0,ix);//get signal from map
// Nside
for(ix=0;ix<GetNStrips();ix++){ // loop over strips
- noise = (Double_t) gRandom->Gaus(0,res->GetNoiseN().At(ix));// give noise to signal
+ noise = (Double_t) gRandom->Gaus(0,res->GetNoiseN(ix));// give noise to signal
noise *= (Double_t) res->GetGainN(ix);
- noise /= res->GetDEvToADC(1.);
+ noise /= res->GetSSDDEvToADC(1.);
signal = noise + fMapA2->GetSignal(1,ix);//get signal from map
fMapA2->SetHit(1,ix,signal); // give back signal to map
if(signal>0.0) pList->AddNoise(1,ix,module,noise);
// Apply the effect of electronic coupling between channels
Int_t ix;
Double_t signal=0;
- AliITSCalibrationSSD* res =(AliITSCalibrationSSD*)GetCalibrationModel(module);
-
+ //AliITSCalibrationSSD* res =(AliITSCalibrationSSD*)GetCalibrationModel(module);
+ AliITSSimuParam* res = fDetType->GetSimuParam();
+
Double_t *contrLeft = new Double_t[GetNStrips()];
Double_t *contrRight = new Double_t[GetNStrips()];
// P side coupling
for(ix=0;ix<GetNStrips();ix++){
- if(ix>0) contrLeft[ix] = fMapA2->GetSignal(0,ix-1)*res->GetCouplingPL();
+ if(ix>0) contrLeft[ix] = fMapA2->GetSignal(0,ix-1)*res->GetSSDCouplingPL();
else contrLeft[ix] = 0.0;
- if(ix<(GetNStrips()-1)) contrRight[ix] = fMapA2->GetSignal(0,ix+1)*res->GetCouplingPR();
+ if(ix<(GetNStrips()-1)) contrRight[ix] = fMapA2->GetSignal(0,ix+1)*res->GetSSDCouplingPR();
else contrRight[ix] = 0.0;
} // loop over strips
for(ix=0;ix<GetNStrips();ix++){
- signal = contrLeft[ix] + contrRight[ix] - res->GetCouplingPL() * fMapA2->GetSignal(0,ix)
- - res->GetCouplingPR() * fMapA2->GetSignal(0,ix);
+ signal = contrLeft[ix] + contrRight[ix] - res->GetSSDCouplingPL() * fMapA2->GetSignal(0,ix)
+ - res->GetSSDCouplingPR() * fMapA2->GetSignal(0,ix);
fMapA2->AddSignal(0,ix,signal);
if(signal>0.0) pList->AddNoise(0,ix,module,signal);
} // loop over strips
// N side coupling
for(ix=0;ix<GetNStrips();ix++){
- if(ix>0) contrLeft[ix] = fMapA2->GetSignal(1,ix-1)*res->GetCouplingNL();
+ if(ix>0) contrLeft[ix] = fMapA2->GetSignal(1,ix-1)*res->GetSSDCouplingNL();
else contrLeft[ix] = 0.0;
- if(ix<(GetNStrips()-1)) contrRight[ix] = fMapA2->GetSignal(1,ix+1)*res->GetCouplingNR();
+ if(ix<(GetNStrips()-1)) contrRight[ix] = fMapA2->GetSignal(1,ix+1)*res->GetSSDCouplingNR();
else contrRight[ix] = 0.0;
} // loop over strips
for(ix=0;ix<GetNStrips();ix++){
- signal = contrLeft[ix] + contrRight[ix] - res->GetCouplingNL() * fMapA2->GetSignal(0,ix)
- - res->GetCouplingNR() * fMapA2->GetSignal(0,ix);
+ signal = contrLeft[ix] + contrRight[ix] - res->GetSSDCouplingNL() * fMapA2->GetSignal(0,ix)
+ - res->GetSSDCouplingNR() * fMapA2->GetSignal(0,ix);
fMapA2->AddSignal(1,ix,signal);
if(signal>0.0) pList->AddNoise(1,ix,module,signal);
} // loop over strips
void AliITSsimulationSSD::ApplyDeadChannels(Int_t module) {
// Kill dead channels setting gain to zero
- Int_t deadentries;
-
AliITSCalibrationSSD* res = (AliITSCalibrationSSD*)GetCalibrationModel(module);
- deadentries = res->GetDeadPChannelsList().GetSize();
- //cout<<module<<" "<<deadentries<<endl;
- for(Int_t i=0; i<deadentries; i++) {
- res->AddGainP(res->GetDeadPChannelsList().At(i),0.0);
- }
+ for(Int_t i=0;i<GetNStrips();i++){
- deadentries = res->GetDeadNChannelsList().GetSize();
- for(Int_t i=0; i<deadentries; i++) {
- res->AddGainN(res->GetDeadNChannelsList().At(i),0.0);
- }
+ if(res->IsPChannelBad(i)) res->SetGainP(i,0.0);
+ if(res->IsNChannelBad(i)) res->SetGainN(i,0.0);
+
+ } // loop over strips
}
Float_t charges[3] = {0.0,0.0,0.0};
Float_t signal;
AliITSCalibrationSSD* res =(AliITSCalibrationSSD*)GetCalibrationModel(module);
+ AliITSSimuParam* simpar = fDetType->GetSimuParam();
for(Int_t k=0;k<2;k++){ // both sides (0=Pside, 1=Nside)
for(Int_t ix=0;ix<GetNStrips();ix++){ // loop over strips
// if strip is dead -> gain=0
if( ((k==0)&&(res->GetGainP(ix)==0)) || ((k==1)&&(res->GetGainN(ix)==0))) continue;
+ signal = fMapA2->GetSignal(k,ix);
// signal has to be uncalibrated
// In real life, gains are supposed to be calculated from calibration runs,
// stored in the calibration DB and used in the reconstruction
else signal /= res->GetGainN(ix);
// signal is converted in unit of ADC
- signal = res->GetDEvToADC(fMapA2->GetSignal(k,ix));
+ signal = res->GetSSDDEvToADC(signal);
if(signal>4096.) signal = 4096.;//if exceeding, accumulate last one
// threshold for zero suppression is set on the basis of the noise
// A good value is 3*sigma_noise
- if(k==0) threshold = res->GetNoiseP().At(ix);
- else threshold = res->GetNoiseN().At(ix);
- threshold *= res->GetZSThreshold(); // threshold at 3 sigma noise
+ if(k==0) threshold = res->GetNoiseP(ix);
+ else threshold = res->GetNoiseN(ix);
+
+ threshold *= simpar->GetSSDZSThreshold(); // threshold at 3 sigma noise
+
if(signal < threshold) continue;
+ //cout<<signal<<" "<<threshold<<endl;
digits[0] = k;
digits[1] = ix;
-
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff