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1 | #ifndef AliRICHParam_h | |
2 | #define AliRICHParam_h | |
3 | ||
4 | #include <TObject.h> | |
5 | #include "AliRICHConst.h" | |
6 | ||
7 | ||
8 | ||
9 | class AliRICHParam :public TObject | |
10 | { | |
11 | public: | |
12 | AliRICHParam(); | |
13 | virtual ~AliRICHParam() {;} | |
14 | ||
15 | inline Int_t Neighbours(Int_t iPadX,Int_t iPadY,Int_t aListX[4],Int_t aListY[4])const; //pad->neibours | |
16 | inline void SigGenInit(Float_t x,Float_t y); | |
17 | inline Bool_t SigGenCond(Float_t x,Float_t y); | |
18 | static Int_t Local2Pad(Float_t x,Float_t y,Int_t &padx,Int_t &pady); //(x,y)->(padx,pady), returns sector code | |
19 | static Int_t Local2PadX(Float_t x,Float_t y) {Int_t padx,pady;Local2Pad(x,y,padx,pady);return padx;}//(x,y)->padx | |
20 | static Int_t Local2PadY(Float_t x,Float_t y) {Int_t padx,pady;Local2Pad(x,y,padx,pady);return pady;}//(x,y)->pady | |
21 | static void Pad2Local(Int_t padx,Int_t pady,Float_t &x,Float_t &y); //(padx,pady)->(x,y) | |
22 | static Int_t LocalX2Wire(Float_t x) {return Int_t((x+PcSizeX()/2)/WirePitch())+1;} //x->wire number | |
23 | static Float_t Wire2LocalX(Int_t iWireN) {return iWireN*WirePitch()-PcSizeX()/2;} //wire number->x | |
24 | ||
25 | Float_t Gain(Float_t y); //Returns total charge induced by single photon | |
26 | Float_t TotalCharge(Int_t iPID,Float_t eloss,Float_t y); //Returns total charge induced by particle lost eloss GeV | |
27 | static Float_t AssignChargeToPad(Float_t hx,Float_t hy, Int_t px, Int_t py); //Returns charge assigned to given pad for a given hit | |
28 | void FirstPad(Float_t x,Float_t y); | |
29 | ||
30 | static Float_t AnodeCathodeGap() {return 0.2;} | |
31 | ||
32 | static Int_t NpadsX() {return 144;} | |
33 | static Int_t NpadsY() {return 160;} | |
34 | static Int_t NpadsXsec() {return NpadsX()/3;} | |
35 | static Int_t NpadsYsec() {return NpadsY()/2;} | |
36 | static Float_t DeadZone() {return 2.6;} | |
37 | static Float_t PadSizeX() {return 0.84;} | |
38 | static Float_t PadSizeY() {return 0.8;} | |
39 | static Float_t SectorSizeX() {return NpadsX()*PadSizeX()/3;} | |
40 | static Float_t SectorSizeY() {return NpadsY()*PadSizeY()/2;} | |
41 | static Float_t PcSizeX() {return NpadsX()*PadSizeX()+2*DeadZone();} | |
42 | static Float_t PcSizeY() {return NpadsY()*PadSizeY()+DeadZone();} | |
43 | static Float_t WirePitch() {return PadSizeX()/2;} | |
44 | ||
45 | void Size(Float_t x,Float_t y,Float_t z){fSizeX=x;fSizeY=y;fSizeZ=z;} | |
46 | void GeantSize(Float_t *pArr) const{pArr[0]=fSizeX/2;pArr[1]=fSizeY/2;pArr[2]=fSizeZ/2;} | |
47 | Float_t SizeX() const{return fSizeX;} | |
48 | Float_t SizeY() const{return fSizeY;} | |
49 | Float_t SizeZ() const{return fSizeZ;} | |
50 | static Float_t Offset() {return 490+1.267;} | |
51 | static Float_t AngleYZ() {return 19.5*TMath::DegToRad();} | |
52 | static Float_t AngleXY() {return 20*TMath::DegToRad();} | |
53 | static void AngleRot(Float_t angle) { fgAngleRot=angle;} | |
54 | static Float_t AngleRot() {return fgAngleRot*kD2r;} | |
55 | static Float_t GapThickness() {return 8.0;} | |
56 | void ProximityGapThickness(Float_t a) { fProximityGapThickness=a;} | |
57 | Float_t ProximityGapThickness() const{return fProximityGapThickness;} | |
58 | void QuartzLength(Float_t a) { fQuartzLength=a;} | |
59 | Float_t QuartzLength() const{return fQuartzLength;} | |
60 | void QuartzWidth(Float_t a) { fQuartzWidth=a;} | |
61 | Float_t QuartzWidth() const{return fQuartzWidth;} | |
62 | static Float_t QuartzThickness() {return 0.5;} | |
63 | void OuterFreonLength(Float_t a) { fOuterFreonLength=a;} | |
64 | Float_t OuterFreonLength() const{return fOuterFreonLength;} | |
65 | void OuterFreonWidth(Float_t a) { fOuterFreonWidth=a;} | |
66 | Float_t OuterFreonWidth() const{return fOuterFreonWidth;} | |
67 | void InnerFreonLength(Float_t a) { fInnerFreonLength=a;} | |
68 | Float_t InnerFreonLength() const{return fInnerFreonLength;} | |
69 | void InnerFreonWidth(Float_t a) { fInnerFreonWidth=a;} | |
70 | Float_t InnerFreonWidth() const{return fInnerFreonWidth;} | |
71 | static Float_t FreonThickness() {return 1.5;} | |
72 | static Float_t RadiatorToPads() {return FreonThickness()+QuartzThickness()+GapThickness();} | |
73 | ||
74 | void SigmaIntegration(Float_t a) { fSigmaIntegration=a;} | |
75 | Float_t SigmaIntegration() const{return fSigmaIntegration;} | |
76 | void ChargeSpreadX(Float_t a) { fChargeSpreadX=a;} | |
77 | Float_t ChargeSpreadX() const{return fChargeSpreadX;} | |
78 | void ChargeSpreadY(Float_t a) { fChargeSpreadY=a;} | |
79 | Float_t ChargeSpreadY() const{return fChargeSpreadY;} | |
80 | Float_t AreaX() const{return fSigmaIntegration*fChargeSpreadX;} | |
81 | Float_t AreaY() const{return fSigmaIntegration*fChargeSpreadY;} | |
82 | void ChargeSlope(Float_t a) { fChargeSlope=a;} | |
83 | Float_t ChargeSlope() {return fChargeSlope;} | |
84 | void MaxAdc(Int_t a) { fMaxAdc=a;} | |
85 | Int_t MaxAdc() const{return fMaxAdc;} | |
86 | void AlphaFeedback(Float_t a) { fAlphaFeedback=a;} | |
87 | Float_t AlphaFeedback() const{return fAlphaFeedback;} | |
88 | void EIonisation(Float_t a) { fEIonisation=a;} | |
89 | Float_t EIonisation() const{return fEIonisation;} | |
90 | static Float_t SqrtKx3() {return 0.77459667;} | |
91 | static Float_t Kx2() {return 0.962;} | |
92 | static Float_t Kx4() {return 0.379;} | |
93 | static Float_t SqrtKy3() {return 0.77459667;} | |
94 | static Float_t Ky2() {return 0.962;} | |
95 | static Float_t Ky4() {return 0.379;} | |
96 | ||
97 | void WireSag(Int_t a) { fWireSag=a;} | |
98 | void Voltage(Int_t a) { fVoltage=a;} | |
99 | Float_t Voltage() const{return fVoltage;} | |
100 | protected: | |
101 | static Int_t Local2Sector(Float_t &x,Float_t &y); //(x,y)->sector | |
102 | static Int_t Pad2Sector(Int_t &padx,Int_t &pady); //(padx,pady)->sector | |
103 | ||
104 | Int_t fCurrentPadX,fCurrentPadY; //??? | |
105 | Int_t fCurrentWire; //??? | |
106 | ||
107 | Float_t fSizeX; Float_t fSizeY; Float_t fSizeZ; //chamber outer size, cm | |
108 | static Float_t fgAngleRot; //azimuthal rotation XY plane, deg | |
109 | Float_t fProximityGapThickness; //proximity gap thickness, cm | |
110 | Float_t fQuartzLength; Float_t fQuartzWidth; //quartz window size, cm | |
111 | Float_t fOuterFreonLength; Float_t fOuterFreonWidth; //freon box outer size, cm | |
112 | Float_t fInnerFreonLength; Float_t fInnerFreonWidth; //freon box inner size, cm | |
113 | ||
114 | Float_t fChargeSlope; //Slope of the charge distribution | |
115 | Float_t fChargeSpreadX; //Width of the charge distribution in x | |
116 | Float_t fChargeSpreadY; //Width of the charge distribution in y | |
117 | Float_t fSigmaIntegration; //Number of sigma's used for charge distribution | |
118 | Float_t fAlphaFeedback; //Feedback photons coefficient | |
119 | Float_t fEIonisation; //Mean ionisation energy | |
120 | Int_t fMaxAdc; //Maximum ADC channel | |
121 | Int_t fWireSag; //Flag to turn on/off (0/1) wire sag | |
122 | Int_t fVoltage; //Working voltage (2000, 2050, 2100, 2150) | |
123 | ||
124 | ClassDef(AliRICHParam,2) //RICH main parameters | |
125 | }; | |
126 | //__________________________________________________________________________________________________ | |
127 | void AliRICHParam::SigGenInit(Float_t x,Float_t y) | |
128 | {//Initialises pad and wire position during stepping | |
129 | Local2Pad(x,y,fCurrentPadX,fCurrentPadY); | |
130 | fCurrentWire= (x>0) ? Int_t(x/WirePitch())+1 : Int_t(x/WirePitch())-1 ; | |
131 | } | |
132 | //__________________________________________________________________________________________________ | |
133 | Bool_t AliRICHParam::SigGenCond(Float_t x,Float_t y) | |
134 | {//Signal will be generated if particle crosses pad boundary or boundary between two wires. | |
135 | Int_t curPadX,curPadY; | |
136 | Local2Pad(x,y,curPadX,curPadY); | |
137 | Int_t currentWire=(x>0) ? Int_t(x/WirePitch())+1 : Int_t(x/WirePitch())-1; | |
138 | if((curPadX != fCurrentPadX) || (curPadY != fCurrentPadY) || (currentWire!=fCurrentWire)) | |
139 | return kTRUE; | |
140 | else | |
141 | return kFALSE; | |
142 | }//Bool_t AliRICHParam::SigGenCond(Float_t x,Float_t y) | |
143 | //__________________________________________________________________________________________________ | |
144 | Int_t AliRICHParam::Neighbours(Int_t iPadX,Int_t iPadY,Int_t listX[4],Int_t listY[4])const | |
145 | { | |
146 | listX[0]=iPadX; listY[0]=iPadY-1; | |
147 | listX[1]=iPadX+1; listY[1]=iPadY; | |
148 | listX[2]=iPadX; listY[2]=iPadY+1; | |
149 | listX[3]=iPadX-1; listY[3]=iPadY; | |
150 | return 4; | |
151 | } | |
152 | //__________________________________________________________________________________________________ | |
153 | #endif //AliRICHParam_h |