Gabriele Cosmo
139 lines
4.1 KiB
C++
139 lines
4.1 KiB
C++
// This code implementation is the intellectual property of
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// the RD44 GEANT4 collaboration.
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//
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// By copying, distributing or modifying the Program (or any work
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// based on the Program) you indicate your acceptance of this statement,
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// and all its terms.
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//
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// $Id: G4SandiaTable.hh,v 2.2 1998/12/10 11:43:35 maire Exp $
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// GEANT4 tag $Name: geant4-00 $
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//
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
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//
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// 18.11.98 simplified public interface; new methods for materials. mma
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// 10.06.97 created. V. Grichine
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//
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
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#ifndef G4SANDIATABLE_HH
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#define G4SANDIATABLE_HH
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#include "G4OrderedTable.hh"
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#include "G4ios.hh"
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#include "globals.hh"
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#include <assert.h>
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class G4Material;
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
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class G4SandiaTable
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{
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public:
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G4SandiaTable(G4Material*);
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~G4SandiaTable();
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static G4int GetNbOfIntervals (G4int Z);
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static G4double GetSandiaCofPerAtom(G4int Z, G4int, G4int);
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static G4double* GetSandiaCofPerAtom(G4int Z, G4double energy);
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static G4double GetIonizationPot (G4int Z);
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static G4double GetZtoA (G4int Z);
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G4int GetMatNbOfIntervals() {return fMatNbOfIntervals;};
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G4double GetSandiaCofForMaterial(G4int,G4int);
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G4double* GetSandiaCofForMaterial(G4double energy);
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private:
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void ComputeMatSandiaMatrix();
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private:
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static const G4double fSandiaTable[981][5];
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static const G4int fNbOfIntervals[101];
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static G4int fCumulInterval[101];
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static const G4double fZtoAratio[101];
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static const G4double fIonizationPotentials[101];
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static G4double fSandiaCofPerAtom[4];
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G4Material* fMaterial;
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G4int fMatNbOfIntervals;
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G4OrderedTable* fMatSandiaMatrix;
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};
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
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// Inline function implementations
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inline
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G4int G4SandiaTable::GetNbOfIntervals(G4int Z)
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{
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return fNbOfIntervals[Z];
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
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inline
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G4double G4SandiaTable::GetSandiaCofPerAtom(G4int Z, G4int interval, G4int j)
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{
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assert (Z>0 && Z<101 && interval>=0 && interval<fNbOfIntervals[Z]
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&& j>=0 && j<5);
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G4int row = fCumulInterval[Z-1] + interval;
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if (j==0) return fSandiaTable[row][0]*keV;
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G4double AoverAvo = Z/(fZtoAratio[Z]*Avogadro*mole);
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return fSandiaTable[row][j]*AoverAvo*cm2*pow(keV,(int)j);
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
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inline
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G4double* G4SandiaTable::GetSandiaCofPerAtom(G4int Z, G4double energy)
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{
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assert (Z > 0);
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G4int interval = fNbOfIntervals[Z] - 1;
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G4int row = fCumulInterval[Z-1] + interval;
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while ((interval>0) && (energy<fSandiaTable[row][0]*keV))
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row = fCumulInterval[Z-1] + --interval;
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if (energy >= fIonizationPotentials[Z]*eV)
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{
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G4double AoverAvo = Z/(fZtoAratio[Z]*Avogadro*mole);
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fSandiaCofPerAtom[0]=fSandiaTable[row][1]*AoverAvo*cm2*keV;
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fSandiaCofPerAtom[1]=fSandiaTable[row][2]*AoverAvo*cm2*keV*keV;
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fSandiaCofPerAtom[2]=fSandiaTable[row][3]*AoverAvo*cm2*keV*keV*keV;
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fSandiaCofPerAtom[3]=fSandiaTable[row][4]*AoverAvo*cm2*keV*keV*keV*keV;
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}
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else
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fSandiaCofPerAtom[0] = fSandiaCofPerAtom[1] = fSandiaCofPerAtom[2] =
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fSandiaCofPerAtom[3] = 0.;
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return fSandiaCofPerAtom;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
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inline
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G4double G4SandiaTable::GetIonizationPot(G4int Z)
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{
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return fIonizationPotentials[Z]*eV;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
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inline
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G4double G4SandiaTable::GetZtoA(G4int Z)
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{
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return fZtoAratio[Z];
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
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#endif
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