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[u/mrichter/AliRoot.git] / ITS / AliITSCalibration.h
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fcf95fc7 1#ifndef ALIITSCALIBRATION_H
2#define ALIITSCALIBRATION_H
3/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
5
a4005be7 6/* $Id:$ */
7
fcf95fc7 8//////////////////////////////////////////////
9// Base ITS calibration class //
10//////////////////////////////////////////////
11
12#include <TObject.h>
13#include <TString.h>
028a3709 14#include "AliLog.h"
fe20e72f 15#include "AliITSresponse.h"
028a3709 16#include "AliITSMapSDD.h"
18da6e54 17#include "AliITSDriftSpeedArraySDD.h"
fcf95fc7 18
19class AliITSsegmentation;
20class TF1;
21class AliITSgeom;
22
23
24/////////////////////////////////////////////
25// //
26// ITS calibration virtual base class //
27/////////////////////////////////////////////
28class AliITSCalibration : public TObject {
29 public:
30 // Default Constructor
31 AliITSCalibration();
32 // Standard Constructor
33 AliITSCalibration(Double_t Thickness);
4bfbde86 34
fcf95fc7 35 // Destructor.
36 virtual ~AliITSCalibration() {;}
37 //
38 // Configuration methods
39 //
40 // fGeVcharge is set by default 3.6e-9 GeV See for ex. PDG 2004.
41 virtual void SetGeVToCharge(Double_t gc=3.6e-9){fGeVcharge = gc;}
42 // Returns the value fGeVcharge
43 virtual Double_t GetGeVToCharge() const {return fGeVcharge;}
44 // Converts deposited energy to number of electrons liberated
45 virtual Double_t GeVToCharge(Double_t gev) const {return gev/fGeVcharge;}
46 // Temperature in [degree K]
47 virtual void SetTemperature(Double_t t=300.0) {fT = t;}
48 // Get temperature [degree K]
49 virtual Double_t Temperature() const {return fT;}
50 // Set the impurity concentrations in [#/cm^3]
51 virtual void SetImpurity(Double_t n=0.0){fN = n;}
52 // Returns the impurity consentration in [#/cm^3]
53 virtual Double_t Impurity() const {return fN;}
54 // Sets the applied ratio distance/voltage [cm/volt]
55 virtual void SetDistanceOverVoltage(Double_t d,Double_t v){fdv = d/v;}
56 // Sets the applied ration distance/voltage [cm/volt]. Default value
57 // is 300E-4cm/80 volts = 0.000375 cm/volts
58 virtual void SetDistanceOverVoltage(Double_t dv=0.000375){fdv = dv;}
59 // Returns the ration distance/voltage
60 virtual Double_t DistanceOverVoltage() const {return fdv;}
61
62 // Get data type
63 virtual const char *DataType() const {return fDataType.Data();}
64 // Type of data - real or simulated
65 virtual void SetDataType(const char *data="simulated") {fDataType=data;}
66 // Set parameters options: "same" or read from "file" or "SetInvalid" or...
67 // virtual void SetParamOptions(const char*,const char*) = 0;
68 // Set noise parameters
69 virtual void SetNoiseParam(Double_t, Double_t) = 0;
70 // Number of parameters to be set
71 virtual void SetNDetParam(Int_t) = 0;
72 // Set detector parameters: gain, coupling ...
73 virtual void SetDetParam(Double_t *) = 0;
74
75 // Parameters options
76 // virtual void ParamOptions(char *,char*) const = 0;
77 virtual Int_t NDetParam() const = 0;
78 virtual void GetDetParam(Double_t *) const = 0;
79 virtual void GetNoiseParam(Double_t&, Double_t&) const = 0;
80 virtual void SetThresholds(Double_t, Double_t) = 0;
81 virtual void Thresholds(Double_t &, Double_t &) const = 0;
028a3709 82 virtual void SetMapA(Int_t, AliITSMapSDD*) {AliError("This method must be implemented in a derived class");}
83 virtual void SetMapT(Int_t, AliITSMapSDD*) {AliError("This method must be implemented in a derived class");}
18da6e54 84 virtual void SetDriftSpeed(Int_t, AliITSDriftSpeedArraySDD*) {AliError("This method must be implemented in a derived class");}
fcf95fc7 85 virtual Double_t DriftSpeed() const {return SpeedElectron();};
86 // Set sigmas of the charge spread function
87 virtual void SetSigmaSpread(Double_t, Double_t) = 0;
88 // Get sigmas for the charge spread
89 virtual void SigmaSpread(Double_t &,Double_t &) const = 0;
90 // Pulse height from scored quantity (eloss)
91 virtual Double_t IntPH(Double_t) const {return 0.;}
92 // Charge disintegration
93 virtual Double_t IntXZ(AliITSsegmentation *) const {return 0.;}
94 // Electron mobility in Si. [cm^2/(Volt Sec)]. T in degree K, N in #/cm^3
95 virtual Double_t MobilityElectronSiEmp() const ;
96 // Hole mobility in Si. [cm^2/(Volt Sec)] T in degree K, N in #/cm^3
97 virtual Double_t MobilityHoleSiEmp() const ;
98 // Einstein relation for Diffusion Coefficient of Electrons. [cm^2/sec]
99 // T in degree K, N in #/cm^3
100 virtual Double_t DiffusionCoefficientElectron() const ;
101 // Einstein relation for Diffusion Coefficient of Holes. [cm^2/sec]
102 // T in [degree K], N in [#/cm^3]
103 virtual Double_t DiffusionCoefficientHole() const ;
104 // Electron <speed> under an applied electric field E=Volts/cm. [cm/sec]
105 // d distance-thickness in [cm], v in [volts], T in [degree K],
106 // N in [#/cm^3]
107 virtual Double_t SpeedElectron() const ;
108 // Holes <speed> under an applied electric field E=Volts/cm. [cm/sec]
109 // d distance-thickness in [cm], v in [volts], T in [degree K],
110 // N in [#/cm^3]
111 virtual Double_t SpeedHole() const ;
112 // Returns the Gaussian sigma == <x^2+z^2> [cm^2] due to the defusion of
113 // electrons or holes through a distance l [cm] caused by an applied
114 // voltage v [volt] through a distance d [cm] in any material at a
115 // temperature T [degree K].
116 virtual Double_t SigmaDiffusion3D(Double_t l) const;
117 // Returns the Gaussian sigma == <x^2 +y^2+z^2> [cm^2] due to the
118 // defusion of electrons or holes through a distance l [cm] caused by an
119 // applied voltage v [volt] through a distance d [cm] in any material at a
120 // temperature T [degree K].
121 virtual Double_t SigmaDiffusion2D(Double_t l) const;
122 // Returns the Gaussian sigma == <x^2+z^2> [cm^2] due to the defusion of
123 // electrons or holes through a distance l [cm] caused by an applied
124 // voltage v [volt] through a distance d [cm] in any material at a
125 // temperature T [degree K].
126 virtual Double_t SigmaDiffusion1D(Double_t l) const;
a4005be7 127 // Computes the Lorentz angle for Electron and Hole, under the Magnetic field bz (in kGauss)
128 virtual Double_t LorentzAngleElectron(Double_t bz) const;
129 virtual Double_t LorentzAngleHole(Double_t bz) const;
fcf95fc7 130 // Compute the thickness of the depleted region in a Si detector, version A
131 virtual Double_t DepletedRegionThicknessA(Double_t dopCons,
132 Double_t voltage,
133 Double_t elecCharge,
134 Double_t voltBuiltIn=0.5)const;
135 // Compute the thickness of the depleted region in a Si detector, version B
136 virtual Double_t DepletedRegionThicknessB(Double_t resist,Double_t voltage,
137 Double_t mobility,
138 Double_t voltBuiltIn=0.5,
139 Double_t dielConst=1.E-12)const;
140 // Computes the temperature dependance of the reverse bias current
141 virtual Double_t ReverseBiasCurrent(Double_t temp,Double_t revBiasCurT1,
142 Double_t tempT1,Double_t energy=1.2)const;
143 // Prints out the content of this class in ASCII format.
144 virtual void Print(ostream *os) const;
145 // Reads in the content of this class in the format of Print
146 virtual void Read(istream *is);
147 virtual void Print(Option_t *option="") const {TObject::Print(option);}
148 virtual Int_t Read(const char *name) {return TObject::Read(name);}
149
150 void SetResponse(AliITSresponse* response) {fResponse=response;}
151 AliITSresponse* GetResponse() const {return fResponse;}
152
153 virtual void SetDiffCoeff(Float_t p1, Float_t p2) {fResponse->SetDiffCoeff(p1,p2);}
154 virtual void DiffCoeff(Float_t &diff,Float_t &diff1) const {fResponse->DiffCoeff(diff,diff1);}
155 virtual void SetFilenames(const char *f1="",const char *f2="",
156 const char *f3="") {fResponse->SetFilenames(f1,f2,f3);}
157 virtual void Filenames(char* input,char* baseline,char* param) {fResponse->Filenames(input,baseline,param);}
158 virtual void SetOutputOption(Bool_t write=kFALSE) {fResponse->SetOutputOption(write);}
159 virtual Bool_t OutputOption() const {return fResponse->OutputOption();}
160
161 protected:
4bfbde86 162 AliITSCalibration(const AliITSCalibration &ob); // copy constructor
154bfd38 163 AliITSCalibration& operator=(const AliITSCalibration& source); // ass.
fcf95fc7 164 void NotImplemented(const char *method) const {if(gDebug>0)
165 Warning(method,"This method is not implemented for this sub-class");}
166
167 TString fDataType; // data type - real or simulated
168
169 Double_t fdv; // The parameter d/v where d is the disance over which the
170 // the potential v is applied d/v [cm/volts]
171 Double_t fN; // the impurity consentration of the material in #/cm^3
172 Float_t fT; // The temperature of the Si in Degree K.
173 Double_t fGeVcharge; // Energy to ionize (free an electron) in GeV
174 AliITSresponse* fResponse; //! ptr to base response obj. It is not
175 // deleted here but in AliITSDetTypeSim and AliITSDetTypeRec
176
177 ClassDef(AliITSCalibration,1) // Detector type response virtual base class
178};
179// Input and output function for standard C++ input/output.
180ostream& operator<<(ostream &os,AliITSCalibration &source);
181istream& operator>>(istream &os,AliITSCalibration &source);
182#endif