#ifndef ALIITSSIMULATIONSSD_H
#define ALIITSSIMULATIONSSD_H
+/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * See cxx source for full Copyright notice */
+/* $Id$ */
-#include <TArrayF.h>
-
-#include "AliITSdcsSSD.h"
-//#include "AliITSdictSSD.h"
#include "AliITSsimulation.h"
-#include "AliITSsegmentationSSD.h"
-
+#include "AliITSsegmentationSSD.h" // function used in inline functions
class AliITSMapA2;
-//class AliITSdictSSD;
+class AliITSpList;
+class AliITSTableSSD;
class AliITSdcsSSD;
+class AliITSsegmentationSSD;
+class AliITSresponseSSD;
class AliITSsimulationSSD: public AliITSsimulation {
-public:
+ public:
+ AliITSsimulationSSD(); // Default constructor
+ AliITSsimulationSSD(const AliITSsimulationSSD &source); // copy constructor
+ // operator =
+ AliITSsimulationSSD& operator=(const AliITSsimulationSSD &source);
+ //Standard Constructor
+ AliITSsimulationSSD(AliITSsegmentation *seg,AliITSresponse *resp);
+ //Destructor
+ virtual ~AliITSsimulationSSD();
+ // Initilize variables for this simulation
+ void Init(AliITSsegmentationSSD *seg,AliITSresponseSSD *resp);
+ // Create maps to build the lists of tracks for each summable digit
+ void InitSimulationModule(Int_t module,Int_t events);
+ // Digitize module from the sum of summable digits.
+ void FinishSDigitiseModule();
+ //Digitizes all of the hits in a module
+ void DigitiseModule(AliITSmodule *mod,Int_t dummy0,Int_t dummy1);
+ // Computes the Summable Digits
+ void SDigitiseModule(AliITSmodule *mod,Int_t module,Int_t dummy);
+ // Computes the Charge on each Strip/ Analog/summable digits
+ void HitsToAnalogDigits(AliITSmodule *mod,AliITSpList *pList);
+ //Computes the signal from one hit
+ void HitToDigit(Int_t module,Double_t x0,Double_t y0,Double_t z0,
+ Double_t x,Double_t y,Double_t z,Double_t de,
+ AliITSTableSSD *tav);
+ //returns a pointer to the SSD segmentation.
+ AliITSsegmentationSSD *GetSegmentation() {
+ return (AliITSsegmentationSSD*) fSegmentation;}
+ //Returns the ionization energy for Si in GeV.
+ Double_t GetIonizeE() const {return fIonE;}
+ //Sets the ionization energy for Si in GeV.
+ void SetIonizeE(Double_t e=3.62E-09){fIonE = e;}
+ //Returns the Diffusion constant h in cm**2/sec
+ Double_t GetDiffConst(Int_t i) const {return fDifConst[i];}
+ //Sets the Diffusion constant h in cm**2/sec
+ void SetDiffConst(Double_t h=11.0,Double_t e=30.0)
+ {fDifConst[0] = h;fDifConst[1]=e;}
+ //Returns the Drift velocity for the side i
+ Double_t GetDriftVelocity(Int_t i) const {return fDriftVel[i];}
+ //Sets the Drift velocity for the P and N sides
+ void SetDriftVelocity(Double_t v0=0.86E+06,Double_t v1=2.28E+06)
+ {fDriftVel[0] = v0;fDriftVel[1] = v1;}
+ // Standard ascii class print function
+ void Print(ostream *os);
+ // Standard ascii class read function
+ void Read(istream *is);
- AliITSsimulationSSD() {}
- AliITSsimulationSSD(AliITSsimulationSSD &source); // copy constructor
- AliITSsimulationSSD& operator=(AliITSsimulationSSD &source); // operator =
- AliITSsimulationSSD(AliITSsegmentation *seg, AliITSresponse *resp);
- virtual ~AliITSsimulationSSD();
-
- void DigitiseModule(AliITSmodule *mod, Int_t mod, Int_t dummy);
- //void HitToDigit(Double_t x0, Double_t y0, Double_t z0,
- void HitToDigit(Int_t module, Double_t x0, Double_t y0, Double_t z0, //b.b.
- Double_t x, Double_t y, Double_t z, Double_t de,
- Int_t *indexRange, Bool_t first);
- Int_t NumOfSteps(Double_t x, Double_t y, Double_t z,
- Double_t & dex,Double_t & dey,Double_t & dez);
- void GetList(Int_t track, Float_t **pList, Int_t *IndexRange);
- void ChargeToSignal(Float_t **pList);
-
- //TArrayF* GetSignalP() {return fP;}
- //TArrayF* GetSignalN() {return fN;}
-
- AliITSsegmentationSSD *GetSegmentation() {return (AliITSsegmentationSSD*)fSegmentation;}
+ private:
+ // returns the number of steps needed to proplerly distribute the charge
+ // in a step
+ Int_t NumOfSteps(Double_t x,Double_t y,Double_t z,
+ Double_t &dex,Double_t &dey,Double_t &dez);
+ // Keepts track and orders tracks for a give strip.
+ void GetList(Int_t trk,Int_t ht,Int_t mod,AliITSpList *pLt,
+ AliITSTableSSD *tav);
+ // sets thresholds and fills digits
+ void ChargeToSignal(AliITSpList *pList);
+ // Writes Summable Digits to a root file for later use.
+ void WriteSDigits(AliITSpList *pList);
+ // ReadSDigits and create Digits
+ void SDigitToDigit(Int_t module,AliITSpList *pList);
+ // Fills fMapA2 from pList AliITSpList
+ void FillMapFrompList(AliITSpList *pList);
+ // Diffuses the charge onto neighboring strips.
+ void IntegrateGaussian(Int_t k,Double_t par,Double_t av,Double_t sigma,
+ Double_t inf, Double_t sup,
+ AliITSTableSSD *tav);
+ // Applies noise to strips randomly
+ void ApplyNoise(AliITSpList *pList,Int_t mod);
+ // Applies posible signal coupling between strips
+ void ApplyCoupling(AliITSpList *pList,Int_t mod);
+ // Computes the integral of a gaussian using Error Function
+ Float_t F(Float_t av, Float_t x, Float_t s);
+ // returns, from the segmentation, the number of stips
+ Int_t GetNStrips() {return GetSegmentation()->Npx();}
+ // returns, from the segmentation, the strip pitch
+ Float_t GetStripPitch() {return GetSegmentation()->Dpx(0);}
+ // Data members
protected:
-
- void IntegrateGaussian(Int_t k, Double_t par, Double_t av, Double_t sigma,
- Double_t inf, Double_t sup,
- Int_t *indexRange, Bool_t first);
- void ApplyNoise();
- void ApplyCoupling();
- // void ApplyThreshold();
- //void ApplyDAQ();
-
- Float_t F(Float_t av, Float_t x, Float_t s);
- // Float_t Get2Strip(Int_t flag, Int_t istrip, Float_t x, Float_t z);
-
- // Data members
-
- protected:
-
- AliITSdcsSSD *fDCS;
- Int_t fNstrips;
- Float_t fPitch;
- //TArrayF *fN; // for signal N side
- //TArrayF *fP; // for signal P side
- //AliITSdictSSD *fTracksP; //!
- //AliITSdictSSD *fTracksN; //!
-
- //______________________________________________________________
- //
- // Parameters for simulation
- //______________________________________________________________
- Int_t fSteps; //Number of steps
-
- private:
+ AliITSdcsSSD *fDCS; // Class containing detector controle paramters
- AliITSMapA2 *fMapA2; // MapA2
-
- ClassDef(AliITSsimulationSSD,1)
-
- };
+ private:
+ AliITSMapA2 *fMapA2; //! Map of ionization, used localy only
+ Double_t fIonE; // ionization energy of Si in GeV
+ Double_t fDifConst[2]; // Diffusion constants [h,e] in cm**2/sec
+ Double_t fDriftVel[2]; // Drift velocities [P,N sides] cm/sec
+// Int_t fModule; //! Current module number
+// Int_t fEvent; //! Current Event number
+// AliITSpList *fpList; //! Array of s digits.
+ ClassDef(AliITSsimulationSSD,2) // SSD signal simulation class
+};
+// Input and output functions for standard C++ input/output.
+ostream &operator<<(ostream &os,AliITSsimulationSSD &source);
+istream &operator>>(istream &is,AliITSsimulationSSD &source);
#endif
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff