6a03a2ad2909f257b65da8e0377f15caa55ec61c
[u/mrichter/AliRoot.git] / RICH / AliRICHParam.h
1 #ifndef AliRICHParam_h
2 #define AliRICHParam_h
3
4 #include <TObject.h>
5 #include "AliRICHConst.h"
6
7 class AliRICHParam :public TObject  
8 {
9 public:
10            AliRICHParam();  
11   virtual ~AliRICHParam()                    {;}  
12   
13   void    Recalc();                                           //Recalculates dependent parameters after changes applied  
14   Int_t   Sector(Float_t &x,Float_t &y)const;                       //Returns sector number for given point (x,y)
15   Int_t   L2P(Float_t x,Float_t y,Int_t &padx,Int_t &pady)const;//Which pad contains point (x,y), returns sector code 
16   inline  Int_t L2Px(Float_t x,Float_t y)const;                         //Which pad contains point (x,y), returns padx
17   inline  Int_t L2Py(Float_t x,Float_t y)const;                         //Which pad contains point (x,y), returns padx
18   inline  Int_t Wire(Float_t x)const;                             //Returns wire number for local point (x,y)
19   inline  void   SigGenInit(Float_t x,Float_t y);
20   inline  Bool_t SigGenCond(Float_t x,Float_t y);
21   Float_t Gain(Float_t y);                                 //Returns total charge induced by single photon
22   Float_t TotalCharge(Int_t iPID,Float_t eloss,Float_t y); //Returns total charge induced by particle lost eloss GeV
23   Float_t PadCharge(Int_t /* iPadX */,Int_t /* iPadY */) {return 0;}   //Returns charge for a given pad
24   void    FirstPad(Float_t x,Float_t y);
25           
26   void    Segmentation(Int_t Nx,Int_t Ny)    {fNpadsX=Nx;fNpadsY=Ny;Recalc();}
27   Int_t   NpadsX()                      const{return fNpadsX;}
28   Int_t   NpadsY()                      const{return fNpadsY;}   
29   void    DeadZone(Float_t a)                {       fDeadZone=a;Recalc();}
30   Float_t DeadZone()                    const{return fDeadZone;}
31   void    PadSize(Float_t x,Float_t y)       {       fPadSizeX=x;fPadSizeY=y;Recalc();} 
32   Float_t PadSizeX()                    const{return fPadSizeX;}
33   Float_t PadSizeY()                    const{return fPadSizeY;}
34   Float_t SectorSizeX()                 const{return fSectorSizeX;}
35   Float_t SectorSizeY()                 const{return fSectorSizeY;}  
36   Float_t PcSizeX()                     const{return fPcSizeX;}
37   Float_t PcSizeY()                     const{return fPcSizeY;}
38             
39   void    Size(Float_t x,Float_t y,Float_t z){fSizeX=x;fSizeY=y;fSizeZ=z;}
40   void    GeantSize(Float_t *pArr)      const{pArr[0]=fSizeX/2;pArr[1]=fSizeY/2;pArr[2]=fSizeZ/2;}  
41   Float_t SizeX()                       const{return fSizeX;}
42   Float_t SizeY()                       const{return fSizeY;}
43   Float_t SizeZ()                       const{return fSizeZ;}   
44   void    Offset(Float_t offset)             {       fOffset=offset;}  
45   Float_t Offset()                      const{return fOffset;}  
46   void    Angles(Float_t xy,Float_t yz)      {       fAngleXY=xy;fAngleYZ=yz;} 
47   Float_t AngleYZ()                     const{return fAngleYZ*kD2r;} 
48   Float_t AngleXY()                     const{return fAngleXY*kD2r;} 
49   void    AngleRot(Float_t angle)            {       fAngleRot=angle;}
50   Float_t AngleRot()                    const{return fAngleRot*kD2r;}                
51   void    GapThickness(Float_t a)            {       fGapThickness=a;}    
52   Float_t GapThickness()                const{return fGapThickness;}      
53   void    ProximityGapThickness(Float_t a)   {       fProximityGapThickness=a;}
54   Float_t ProximityGapThickness()       const{return fProximityGapThickness;}    
55   void    QuartzLength(Float_t a)            {       fQuartzLength=a;}
56   Float_t QuartzLength()                const{return fQuartzLength;}   
57   void    QuartzWidth(Float_t a)             {       fQuartzWidth=a;}
58   Float_t QuartzWidth()                 const{return fQuartzWidth;}
59   void    QuartzThickness(Float_t a)         {       fQuartzThickness=a;}
60   Float_t QuartzThickness()             const{return fQuartzThickness;}   
61   void    OuterFreonLength(Float_t a)        {       fOuterFreonLength=a;}
62   Float_t OuterFreonLength()            const{return fOuterFreonLength;}   
63   void    OuterFreonWidth(Float_t a)         {       fOuterFreonWidth=a;}
64   Float_t OuterFreonWidth()             const{return fOuterFreonWidth;}   
65   void    InnerFreonLength(Float_t a)        {       fInnerFreonLength=a;}
66   Float_t InnerFreonLength()            const{return fInnerFreonLength;}   
67   void    InnerFreonWidth(Float_t a)         {       fInnerFreonWidth=a;}
68   Float_t InnerFreonWidth()             const{return fInnerFreonWidth;}   
69   void    FreonThickness(Float_t a)          {       fFreonThickness=a;}
70   Float_t FreonThickness()              const{return fFreonThickness;}   
71   void    RadiatorToPads(Float_t a)          {       fRadiatorToPads=a;}
72   Float_t RadiatorToPads()              const{return fRadiatorToPads;}   
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    Pitch(Float_t a)                   {       fPitch=a;}
87   Float_t Pitch()                       const{return fPitch;}
88   void    AlphaFeedback(Float_t a)           {       fAlphaFeedback=a;}
89   Float_t AlphaFeedback()               const{return fAlphaFeedback;}
90   void    EIonisation(Float_t a)             {       fEIonisation=a;}
91   Float_t EIonisation()                 const{return fEIonisation;}                            
92   void    SqrtKx3(Float_t a)                 {       fSqrtKx3=a;};
93   void    Kx2(Float_t a)                     {       fKx2=a;}
94   void    Kx4(Float_t a)                     {       fKx4=a;}
95   void    SqrtKy3(Float_t a)                 {       fSqrtKy3=a;}
96   void    Ky2(Float_t a)                     {       fKy2=a;}
97   void    Ky4(Float_t a)                     {       fKy4=a;}
98   void    WireSag(Int_t a)                   {       fWireSag=a;}
99   void    Voltage(Int_t a)                   {       fVoltage=a;}       
100   Float_t Voltage()                     const{return fVoltage;}       
101 protected:
102   Int_t   fNpadsX;        Int_t fNpadsY;                      //number of pads along X-Y in whole chamber (6 sectors)
103   Int_t   fNpadsXsector;  Int_t fNpadsYsector;                //number of pads along X-Y in one sector
104   Float_t fDeadZone;                              //space between PC sectors, cm     
105   Float_t fPadSizeX,fPadSizeY;                    //pad size, cm
106   Float_t fSectorSizeX,fSectorSizeY;              //photocathod sector size, cm
107   Float_t fWirePitch;                             //
108   
109   Int_t   fCurrentPadX,fCurrentPadY;              //???
110   Int_t   fCurrentWire;                           //???
111     
112   Float_t fSizeX;  Float_t fSizeY; Float_t fSizeZ;                                //chamber outer size, cm
113   Float_t fAngleRot;                                                              //azimuthal rotation XY plane, deg  
114   Float_t fAngleYZ;                                                               //angle between chambers YZ plane, deg
115   Float_t fAngleXY;                                                               //angle between chambers XY plane, deg
116   Float_t fOffset;                                                                //chambers offset from IP, cm   
117   Float_t fGapThickness;                                                          //gap thickness, cm
118   Float_t fProximityGapThickness;                                                 //proximity gap thickness, cm
119   Float_t fQuartzLength;     Float_t fQuartzWidth;     Float_t fQuartzThickness;  //quartz window size, cm
120   Float_t fOuterFreonLength; Float_t fOuterFreonWidth;                            //freon box outer size, cm
121   Float_t fInnerFreonLength; Float_t fInnerFreonWidth;                            //freon box inner size, cm
122   Float_t fFreonThickness;                                                        //freon thickness
123   Float_t fRadiatorToPads;                                                        //distance from radiator to pads, cm
124   Float_t fPcSizeX,fPcSizeY;                                                      //photocathod active area size,cm
125   
126   Float_t fChargeSlope;              //Slope of the charge distribution
127   Float_t fChargeSpreadX;            //Width of the charge distribution in x
128   Float_t fChargeSpreadY;            //Width of the charge distribution in y
129   Float_t fSigmaIntegration;         //Number of sigma's used for charge distribution
130   Float_t fAlphaFeedback;            //Feedback photons coefficient
131   Float_t fEIonisation;              //Mean ionisation energy
132   Int_t   fMaxAdc;                   //Maximum ADC channel
133   Float_t fSqrtKx3;                  //Mathieson parameters for x
134   Float_t fKx2;                      //Mathieson parameters for x
135   Float_t fKx4;                      //Mathieson parameters for x
136   Float_t fSqrtKy3;                  //Mathieson parameters for y
137   Float_t fKy2;                      //Mathieson parameters for y 
138   Float_t fKy4;                      //Mathieson parameters for y
139   Float_t fPitch;                    //Anode-cathode pitch
140   Int_t   fWireSag;                  //Flag to turn on/off (0/1) wire sag
141   Int_t   fVoltage;                  //Working voltage (2000, 2050, 2100, 2150)
142
143   ClassDef(AliRICHParam,1)    //RICH main parameters
144 };
145 //__________________________________________________________________________________________________
146 Int_t AliRICHParam::Wire(Float_t x)const
147 {
148   Int_t iWire=(x>0)?Int_t(x/fWirePitch)+1:Int_t(x/fWirePitch)-1;
149   return iWire;
150 }//Int_t AliRICHParam::Wire(Float_t x, Float_t y)
151 //__________________________________________________________________________________________________
152 void AliRICHParam::SigGenInit(Float_t x,Float_t y)
153 {//Initialises pad and wire position during stepping
154   L2P(x,y,fCurrentPadX,fCurrentPadY);
155   fCurrentWire= (x>0) ? Int_t(x/fWirePitch)+1 : Int_t(x/fWirePitch)-1 ;
156 }
157 //__________________________________________________________________________________________________
158 Bool_t AliRICHParam::SigGenCond(Float_t x,Float_t y)
159 {//Signal will be generated if particle crosses pad boundary or boundary between two wires.
160   Int_t curPadX,curPadY;
161   L2P(x,y,curPadX,curPadY);
162   Int_t currentWire=(x>0) ? Int_t(x/fWirePitch)+1 : Int_t(x/fWirePitch)-1;
163   if((curPadX != fCurrentPadX) || (curPadY != fCurrentPadY) || (currentWire!=fCurrentWire)) 
164     return kTRUE;
165   else
166     return kFALSE;
167 }//Bool_t AliRICHParam::SigGenCond(Float_t x,Float_t y)
168 //__________________________________________________________________________________________________
169 Int_t AliRICHParam::L2Px(Float_t x,Float_t y)const
170 {
171   Int_t padx,pady;
172   L2P(x,y,padx,pady);
173   return padx;
174 }//Int_t AliRICHParam::L2Px(Float_t x,Float_t y)
175 //__________________________________________________________________________________________________
176 Int_t AliRICHParam::L2Py(Float_t x,Float_t y)const
177 {
178   Int_t padx,pady;
179   L2P(x,y,padx,pady);
180   return pady;
181 }//Int_t AliRICHParam::L2Px(Float_t x,Float_t y)
182 //__________________________________________________________________________________________________
183 #endif //AliRICHParam_h