-#ifndef AliTRDCOMMONPARAM_H
-#define AliTRDCOMMONPARAM_H
+#ifndef ALITRDCOMMONPARAM_H
+#define ALITRDCOMMONPARAM_H
/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
* See cxx source for full Copyright notice */
#include "TObject.h"
+#include "AliTRDSimParam.h"
+
class TRootIoCtor;
class AliTRDpadPlane;
public:
- enum { kNlayer = 6, kNstack = 5, kNsector = 18, kNdet = 540 };
+ enum { kNlayer = 6
+ , kNstack = 5
+ , kNsector = 18
+ , kNdet = 540 };
+
+ enum { kXenon = 0
+ , kArgon = 1 };
AliTRDCommonParam(TRootIoCtor *);
AliTRDCommonParam(const AliTRDCommonParam &p);
virtual void Copy(TObject &p) const;
- void SetExB(Int_t exbOn = 1) { fExBOn = exbOn; }
- void SetSamplingFrequency(Float_t freq) { fSamplingFrequency = freq; }
-
- Bool_t ExBOn() const { return fExBOn; }
-
- Float_t GetSamplingFrequency() const { return fSamplingFrequency; }
+ void SetExB(Int_t exbOn = 1) { fExBOn = exbOn; }
+ void SetSamplingFrequency(Float_t freq) { fSamplingFrequency = freq; }
+ void SetXenon() { fGasMixture = kXenon;
+ AliTRDSimParam::Instance()->ReInit(); }
+ void SetArgon() { fGasMixture = kArgon;
+ AliTRDSimParam::Instance()->ReInit(); }
+
+ Bool_t ExBOn() const { return fExBOn; }
+ Bool_t IsXenon() const { return (fGasMixture == kXenon)
+ ? kTRUE : kFALSE; }
+ Bool_t IsArgon() const { return (fGasMixture == kArgon)
+ ? kTRUE : kFALSE; }
+
+ Int_t GetGasMixture() const { return fGasMixture; }
+ Float_t GetSamplingFrequency() const { return fSamplingFrequency; }
+
+ Float_t GetOmegaTau(Float_t vdrift);
+ Bool_t GetDiffCoeff(Float_t &dl, Float_t &dt, Float_t vdrift);
+
+ Double_t TimeStruct(Float_t vdrift, Double_t xd, Double_t z);
protected:
- static AliTRDCommonParam *fgInstance; // Instance of this class (singleton implementation)
- static Bool_t fgTerminated; // Defines if this class has already been terminated
-
- void Init();
-
- Int_t fExBOn; // Switch for the ExB effects
+ void SampleTimeStruct(Float_t vdrift);
+
+ static AliTRDCommonParam *fgInstance; // Instance of this class (singleton implementation)
+ static Bool_t fgTerminated; // Defines if this class has already been terminated
+
+ Int_t fExBOn; // Switch for the ExB effects
- Float_t fSamplingFrequency; // Sampling Frequency in MHz
+ Float_t fDiffusionT; // Transverse drift coefficient
+ Float_t fDiffusionL; // Longitudinal drift coefficient
+ Float_t fDiffLastVdrift; // The structures are valid for fLastVdrift (caching)
+
+ Float_t *fTimeStruct1; //! Time Structure of Drift Cells
+ Float_t *fTimeStruct2; //! Time Structure of Drift Cells
+ Float_t fVDlo; // Lower drift velocity, for interpolation
+ Float_t fVDhi; // Higher drift velocity, for interpolation
+ Float_t fTimeLastVdrift; // The structures are valid for fLastVdrift (caching)
+
+ Float_t fSamplingFrequency; // Sampling Frequency in MHz
+
+ Int_t fGasMixture; // Gas mixture: 0-Xe/C02 1-Ar/CO2.
private:
// This is a singleton, constructor is private!
AliTRDCommonParam();
- ClassDef(AliTRDCommonParam,4) // The constant parameters common to simulation and reconstruction
+ ClassDef(AliTRDCommonParam,7) // The constant parameters common to simulation and reconstruction
};
-
#endif