Adding some further mother volumes to speed-up the overlap checking and particle...
[u/mrichter/AliRoot.git] / ITS / AliITSsimulationSSD.h
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b0f5e3fc 1#ifndef ALIITSSIMULATIONSSD_H
2#define ALIITSSIMULATIONSSD_H
57817f7c 3/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
88cb7938 5
57817f7c 6/* $Id$ */
b0f5e3fc 7
8ba39da9 8/////////////////////////////////////////////////////////////
9// Simulation class for SSD //
10/////////////////////////////////////////////////////////////
11
b0f5e3fc 12#include "AliITSsimulation.h"
c7a4dac0 13#include "AliITSsegmentationSSD.h" // function used in inline functions
b0f5e3fc 14
fd61217e 15class AliITSMapA2;
c7a4dac0 16class AliITSpList;
0dbfc771 17class AliITSTableSSD;
14a74335 18//class AliITSdcsSSD;
57817f7c 19class AliITSsegmentationSSD;
fcf95fc7 20class AliITSCalibrationSSD;
b0f5e3fc 21
22class AliITSsimulationSSD: public AliITSsimulation {
23
57817f7c 24 public:
25 AliITSsimulationSSD(); // Default constructor
26 AliITSsimulationSSD(const AliITSsimulationSSD &source); // copy constructor
27 // operator =
28 AliITSsimulationSSD& operator=(const AliITSsimulationSSD &source);
85f5e9c2 29 // virtual AliITSsimulation& operator=(const AliITSsimulation &source);
57817f7c 30 //Standard Constructor
8ba39da9 31 AliITSsimulationSSD(AliITSDetTypeSim* dettyp);
57817f7c 32 //Destructor
33 virtual ~AliITSsimulationSSD();
8ba39da9 34 // Get a pointer to the segmentation object
35 virtual AliITSsegmentation* GetSegmentationModel(Int_t /*dt*/){return fDetType->GetSegmentationModel(2);}
36 // set pointer to segmentation objec
37 virtual void SetSegmentationModel(Int_t /*dt*/, AliITSsegmentation *seg){fDetType->SetSegmentationModel(2,seg);}
c7a4dac0 38 // Initilize variables for this simulation
aacedc3e 39 void Init();
40 // Initilize variables for this simulation
fcf95fc7 41 //void Init(AliITSsegmentationSSD *seg,AliITSCalibrationSSD *resp);
3a97c582 42 // Create maps to build the lists of tracks for each summable digit
43 void InitSimulationModule(Int_t module,Int_t events);
3a97c582 44 // Digitize module from the sum of summable digits.
45 void FinishSDigitiseModule();
57817f7c 46 //Digitizes all of the hits in a module
c7a4dac0 47 void DigitiseModule(AliITSmodule *mod,Int_t dummy0,Int_t dummy1);
48 // Computes the Summable Digits
49 void SDigitiseModule(AliITSmodule *mod,Int_t module,Int_t dummy);
50 // Computes the Charge on each Strip/ Analog/summable digits
51 void HitsToAnalogDigits(AliITSmodule *mod,AliITSpList *pList);
57817f7c 52 //Computes the signal from one hit
53 void HitToDigit(Int_t module,Double_t x0,Double_t y0,Double_t z0,
54 Double_t x,Double_t y,Double_t z,Double_t de,
633e7c28 55 AliITSTableSSD *tav);
57817f7c 56 //returns a pointer to the SSD segmentation.
8ba39da9 57 /*AliITSsegmentationSSD *GetSegmentation() {
57817f7c 58 return (AliITSsegmentationSSD*) fSegmentation;}
8ba39da9 59 */
57817f7c 60 //Returns the ionization energy for Si in GeV.
61 Double_t GetIonizeE() const {return fIonE;}
62 //Sets the ionization energy for Si in GeV.
63 void SetIonizeE(Double_t e=3.62E-09){fIonE = e;}
64 //Returns the Diffusion constant h in cm**2/sec
65 Double_t GetDiffConst(Int_t i) const {return fDifConst[i];}
66 //Sets the Diffusion constant h in cm**2/sec
67 void SetDiffConst(Double_t h=11.0,Double_t e=30.0)
68 {fDifConst[0] = h;fDifConst[1]=e;}
69 //Returns the Drift velocity for the side i
70 Double_t GetDriftVelocity(Int_t i) const {return fDriftVel[i];}
71 //Sets the Drift velocity for the P and N sides
72 void SetDriftVelocity(Double_t v0=0.86E+06,Double_t v1=2.28E+06)
73 {fDriftVel[0] = v0;fDriftVel[1] = v1;}
74 // Standard ascii class print function
75 void Print(ostream *os);
76 // Standard ascii class read function
77 void Read(istream *is);
d2f55a22 78 virtual void Print(Option_t *option="") const {TObject::Print(option);}
79 virtual Int_t Read(const char *name) {return TObject::Read(name);}
8ba39da9 80 // Data members
81 protected:
82
14a74335 83 // AliITSdcsSSD *fDCS; // Class containing detector controle paramters
b0f5e3fc 84
c7a4dac0 85 private:
aacedc3e 86 // Return the Response class
fcf95fc7 87 // AliITSCalibrationSSD* GetResp(){return (AliITSCalibrationSSD*)fResponse;}
aacedc3e 88 // Return the Segmentation class
8ba39da9 89 //AliITSsegmentationSSD* GetSeg(){
90 // return (AliITSsegmentationSSD*)fSegmentation;}
c7a4dac0 91 // returns the number of steps needed to proplerly distribute the charge
92 // in a step
93 Int_t NumOfSteps(Double_t x,Double_t y,Double_t z,
94 Double_t &dex,Double_t &dey,Double_t &dez);
95 // Keepts track and orders tracks for a give strip.
0dbfc771 96 void GetList(Int_t trk,Int_t ht,Int_t mod,AliITSpList *pLt,
97 AliITSTableSSD *tav);
c7a4dac0 98 // sets thresholds and fills digits
8ba39da9 99 void ChargeToSignal(Int_t module,AliITSpList *pList);
c7a4dac0 100 // Writes Summable Digits to a root file for later use.
101 void WriteSDigits(AliITSpList *pList);
102 // ReadSDigits and create Digits
103 void SDigitToDigit(Int_t module,AliITSpList *pList);
104 // Fills fMapA2 from pList AliITSpList
105 void FillMapFrompList(AliITSpList *pList);
57817f7c 106 // Diffuses the charge onto neighboring strips.
107 void IntegrateGaussian(Int_t k,Double_t par,Double_t av,Double_t sigma,
108 Double_t inf, Double_t sup,
633e7c28 109 AliITSTableSSD *tav);
c7a4dac0 110 // Applies noise to strips randomly
111 void ApplyNoise(AliITSpList *pList,Int_t mod);
112 // Applies posible signal coupling between strips
113 void ApplyCoupling(AliITSpList *pList,Int_t mod);
14a74335 114 // Kill dead channels
115 void ApplyDeadChannels(Int_t mod);
c7a4dac0 116 // Computes the integral of a gaussian using Error Function
57817f7c 117 Float_t F(Float_t av, Float_t x, Float_t s);
c7a4dac0 118 // returns, from the segmentation, the number of stips
8ba39da9 119 Int_t GetNStrips() {AliITSsegmentationSSD* seg = (AliITSsegmentationSSD*)GetSegmentationModel(2);return seg->Npx();}
c7a4dac0 120 // returns, from the segmentation, the strip pitch
8ba39da9 121 Float_t GetStripPitch() {AliITSsegmentationSSD* seg = (AliITSsegmentationSSD*)GetSegmentationModel(2);return seg->Dpx(0);}
57817f7c 122
57817f7c 123 AliITSMapA2 *fMapA2; //! Map of ionization, used localy only
124 Double_t fIonE; // ionization energy of Si in GeV
125 Double_t fDifConst[2]; // Diffusion constants [h,e] in cm**2/sec
126 Double_t fDriftVel[2]; // Drift velocities [P,N sides] cm/sec
b0f5e3fc 127
57817f7c 128 ClassDef(AliITSsimulationSSD,2) // SSD signal simulation class
b0f5e3fc 129
57817f7c 130};
131// Input and output functions for standard C++ input/output.
132ostream &operator<<(ostream &os,AliITSsimulationSSD &source);
133istream &operator>>(istream &is,AliITSsimulationSSD &source);
b0f5e3fc 134#endif