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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 */ | |
5 | /* $Id$ */ | |
b0f5e3fc | 6 | |
b0f5e3fc | 7 | #include "AliITSsimulation.h" |
c7a4dac0 | 8 | #include "AliITSsegmentationSSD.h" // function used in inline functions |
b0f5e3fc | 9 | |
fd61217e | 10 | class AliITSMapA2; |
c7a4dac0 | 11 | class AliITSpList; |
b0f5e3fc | 12 | class AliITSdcsSSD; |
57817f7c | 13 | class AliITSsegmentationSSD; |
c7a4dac0 | 14 | class AliITSresponseSSD; |
b0f5e3fc | 15 | |
16 | class AliITSsimulationSSD: public AliITSsimulation { | |
17 | ||
57817f7c | 18 | public: |
19 | AliITSsimulationSSD(); // Default constructor | |
20 | AliITSsimulationSSD(const AliITSsimulationSSD &source); // copy constructor | |
21 | // operator = | |
22 | AliITSsimulationSSD& operator=(const AliITSsimulationSSD &source); | |
23 | //Standard Constructor | |
24 | AliITSsimulationSSD(AliITSsegmentation *seg,AliITSresponse *resp); | |
25 | //Destructor | |
26 | virtual ~AliITSsimulationSSD(); | |
c7a4dac0 | 27 | // Initilize variables for this simulation |
28 | void Init(AliITSsegmentationSSD *seg,AliITSresponseSSD *resp); | |
57817f7c | 29 | //Digitizes all of the hits in a module |
c7a4dac0 | 30 | void DigitiseModule(AliITSmodule *mod,Int_t dummy0,Int_t dummy1); |
31 | // Computes the Summable Digits | |
32 | void SDigitiseModule(AliITSmodule *mod,Int_t module,Int_t dummy); | |
33 | // Computes the Charge on each Strip/ Analog/summable digits | |
34 | void HitsToAnalogDigits(AliITSmodule *mod,AliITSpList *pList); | |
57817f7c | 35 | //Computes the signal from one hit |
36 | void HitToDigit(Int_t module,Double_t x0,Double_t y0,Double_t z0, | |
37 | Double_t x,Double_t y,Double_t z,Double_t de, | |
38 | Int_t *indexRange,Bool_t first); | |
57817f7c | 39 | //returns a pointer to the SSD segmentation. |
40 | AliITSsegmentationSSD *GetSegmentation() { | |
41 | return (AliITSsegmentationSSD*) fSegmentation;} | |
42 | //Returns the ionization energy for Si in GeV. | |
43 | Double_t GetIonizeE() const {return fIonE;} | |
44 | //Sets the ionization energy for Si in GeV. | |
45 | void SetIonizeE(Double_t e=3.62E-09){fIonE = e;} | |
46 | //Returns the Diffusion constant h in cm**2/sec | |
47 | Double_t GetDiffConst(Int_t i) const {return fDifConst[i];} | |
48 | //Sets the Diffusion constant h in cm**2/sec | |
49 | void SetDiffConst(Double_t h=11.0,Double_t e=30.0) | |
50 | {fDifConst[0] = h;fDifConst[1]=e;} | |
51 | //Returns the Drift velocity for the side i | |
52 | Double_t GetDriftVelocity(Int_t i) const {return fDriftVel[i];} | |
53 | //Sets the Drift velocity for the P and N sides | |
54 | void SetDriftVelocity(Double_t v0=0.86E+06,Double_t v1=2.28E+06) | |
55 | {fDriftVel[0] = v0;fDriftVel[1] = v1;} | |
56 | // Standard ascii class print function | |
57 | void Print(ostream *os); | |
58 | // Standard ascii class read function | |
59 | void Read(istream *is); | |
b0f5e3fc | 60 | |
c7a4dac0 | 61 | private: |
62 | // returns the number of steps needed to proplerly distribute the charge | |
63 | // in a step | |
64 | Int_t NumOfSteps(Double_t x,Double_t y,Double_t z, | |
65 | Double_t &dex,Double_t &dey,Double_t &dez); | |
66 | // Keepts track and orders tracks for a give strip. | |
67 | void GetList(Int_t trk,Int_t ht,Int_t mod,AliITSpList *pLt,Int_t *indxRng); | |
68 | // sets thresholds and fills digits | |
69 | void ChargeToSignal(AliITSpList *pList); | |
70 | // Writes Summable Digits to a root file for later use. | |
71 | void WriteSDigits(AliITSpList *pList); | |
72 | // ReadSDigits and create Digits | |
73 | void SDigitToDigit(Int_t module,AliITSpList *pList); | |
74 | // Fills fMapA2 from pList AliITSpList | |
75 | void FillMapFrompList(AliITSpList *pList); | |
57817f7c | 76 | // Diffuses the charge onto neighboring strips. |
77 | void IntegrateGaussian(Int_t k,Double_t par,Double_t av,Double_t sigma, | |
78 | Double_t inf, Double_t sup, | |
79 | Int_t *indexRange, Bool_t first); | |
c7a4dac0 | 80 | // Applies noise to strips randomly |
81 | void ApplyNoise(AliITSpList *pList,Int_t mod); | |
82 | // Applies posible signal coupling between strips | |
83 | void ApplyCoupling(AliITSpList *pList,Int_t mod); | |
84 | // Computes the integral of a gaussian using Error Function | |
57817f7c | 85 | Float_t F(Float_t av, Float_t x, Float_t s); |
c7a4dac0 | 86 | // returns, from the segmentation, the number of stips |
87 | Int_t GetNStrips() {return GetSegmentation()->Npx();} | |
88 | // returns, from the segmentation, the strip pitch | |
89 | Float_t GetStripPitch() {return GetSegmentation()->Dpx(0);} | |
57817f7c | 90 | |
91 | // Data members | |
fd61217e | 92 | protected: |
57817f7c | 93 | AliITSdcsSSD *fDCS; // Class containing detector controle paramters |
fd61217e | 94 | |
57817f7c | 95 | private: |
96 | AliITSMapA2 *fMapA2; //! Map of ionization, used localy only | |
97 | Double_t fIonE; // ionization energy of Si in GeV | |
98 | Double_t fDifConst[2]; // Diffusion constants [h,e] in cm**2/sec | |
99 | Double_t fDriftVel[2]; // Drift velocities [P,N sides] cm/sec | |
b0f5e3fc | 100 | |
57817f7c | 101 | ClassDef(AliITSsimulationSSD,2) // SSD signal simulation class |
b0f5e3fc | 102 | |
57817f7c | 103 | }; |
104 | // Input and output functions for standard C++ input/output. | |
105 | ostream &operator<<(ostream &os,AliITSsimulationSSD &source); | |
106 | istream &operator>>(istream &is,AliITSsimulationSSD &source); | |
b0f5e3fc | 107 | #endif |