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>> 1 // This code implementation is the intellectual property of
>> 2 // the GEANT4 collaboration.
>> 3 //
>> 4 // By copying, distributing or modifying the Program (or any work
>> 5 // based on the Program) you indicate your acceptance of this statement,
>> 6 // and all its terms.
>> 7 //
>> 8 // $Id: G4IonisParamElm.cc,v 1.6 2001/03/12 17:48:48 maire Exp $
>> 9 // GEANT4 tag $Name: geant4-03-01 $
>> 10 //
>> 11 //
>> 12 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
1 // 13 //
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21 // * any work based on the software) you ag <<
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24 // ******************************************* <<
25 <<
26 // 09-07-98, data moved from G4Element. M.Mair <<
27 // 22-11-00, tabulation of ionisation potentia <<
28 // the ICRU Report N#37. V.Ivanchenk <<
29 // 08-03-01, correct handling of fShellCorrect 14 // 08-03-01, correct handling of fShellCorrectionVector. M.Maire
30 // 17-10-02, Fix excitation energy interpolati << 15 // 22-11-00, tabulation of ionisation potential from
31 // 06-09-04, Update calculated values after an << 16 // the ICRU Report N#37. V.Ivanchenko
32 // potential change. V.Ivanchenko << 17 // 09-07-98, data moved from G4Element. M.Maire
33 // 29-04-10, Using G4Pow and mean ionisation e << 18 //
34 // 27.10.11: new scheme for G4Exception (mma) << 19 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
35 20
36 #include "G4IonisParamElm.hh" 21 #include "G4IonisParamElm.hh"
37 22
38 #include "G4NistManager.hh" << 23 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
39 #include "G4PhysicalConstants.hh" << 24
40 #include "G4Pow.hh" << 25 G4IonisParamElm::G4IonisParamElm(G4double Z)
41 #include "G4SystemOfUnits.hh" << 26 {
42 << 27 if (Z < 1.) G4Exception
43 //....oooOO0OOooo........oooOO0OOooo........oo << 28 (" ERROR! It is not allowed to create an Element with Z < 1" );
44 << 29
45 G4IonisParamElm::G4IonisParamElm(G4double Atom << 30 // some basic functions of the atomic number
46 { << 31 fZ = Z;
47 G4int Z = G4lrint(AtomNumber); << 32 fZ3 = pow(fZ, 1./3.);
48 if (Z < 1) { << 33 fZZ3 = pow(fZ*(fZ+1.), 1./3.);
49 G4Exception("G4IonisParamElm::G4IonisParam << 34 flogZ3 = log(fZ)/3.;
50 "It is not allowed to create an Element << 35
51 } << 36 // Parameters for energy loss by ionisation
52 G4Pow* g4pow = G4Pow::GetInstance(); << 37
53 << 38 // Mean excitation energy
54 // some basic functions of the atomic number << 39 // from "Stopping Powers for Electrons and Positrons"
55 fZ = Z; << 40 // ICRU Report N#37, 1984 (energy in eV)
56 fZ3 = g4pow->Z13(Z); << 41 static double exc[100] = {
57 fZZ3 = fZ3 * g4pow->Z13(Z + 1); << 42 21.8, 20.9, 13.3, 15.9, 15.2, 13.0, 11.7, 11.9, 11.5, 13.7,
58 flogZ3 = g4pow->logZ(Z) / 3.; << 43 13.6, 13.0, 12.8, 12.4, 11.5, 11.3, 10.2, 10.4, 10.0, 9.6,
59 << 44 10.3, 10.6, 10.7, 10.7, 10.9, 11.0, 11.0, 11.1, 11.1, 11.0,
60 fMeanExcitationEnergy = G4NistManager::Insta << 45 10.8, 10.4, 10.5, 10.2, 9.8, 9.8, 9.8, 9.6, 9.7, 9.8,
61 << 46 10.2, 10.1, 10.0, 10.0, 10.0, 10.2, 10.0, 9.8, 10.0, 9.8,
62 // compute parameters for ion transport << 47 9.5, 9.3, 9.3, 8.9, 8.9, 8.8, 8.8, 8.8, 9.1, 9.1,
63 // The aproximation from: << 48 9.2, 9.3, 9.2, 9.2, 9.4, 9.5, 9.7, 9.7, 9.8, 9.8,
64 // J.F.Ziegler, J.P. Biersack, U. Littmark << 49 9.8, 9.8, 9.8, 9.8, 9.8, 9.8, 9.8, 10.1, 10.0, 10.0,
65 // The Stopping and Range of Ions in Matter, << 50 10.0, 10.0, 9.9, 9.9, 9.7, 9.2, 9.5, 9.4, 9.4, 9.4,
66 // Vol.1, Pergamon Press, 1985 << 51 9.6, 9.7, 9.7, 9.8, 9.8, 9.8, 9.8, 9.9, 9.9, 9.9 };
67 // Fast ions or hadrons << 52
68 << 53 G4int iz = (G4int)Z - 1 ;
69 G4int iz = Z - 1; << 54 if(0 > iz) iz = 0;
70 if (91 < iz) { << 55 if(98 < iz) iz = 98 ;
71 iz = 91; << 56 fMeanExcitationEnergy =
72 } << 57 fZ * (exc[iz] + (fZ - (G4double)(iz))*(exc[iz+1] - exc[iz])) * eV ;
73 << 58
74 // clang-format off << 59
75 static const G4double vFermi[92] = { << 60 fTau0 = 0.1*fZ3*MeV/proton_mass_c2;
76 1.0309, 0.15976, 0.59782, 1.0781, 1.0486 << 61 fTaul = 2.*MeV/proton_mass_c2;
77 0.45259, 0.71074, 0.90519, 0.97411, 0.9718 << 62
78 0.81707, 0.9943, 1.1423, 1.2381, 1.1222 << 63 // compute the Bethe-Bloch formula for energy = fTaul*particle mass
79 0.84912, 0.95, 1.0903, 1.0429, 0.4971 << 64 G4double rate = fMeanExcitationEnergy/electron_mass_c2 ;
80 1.029, 1.2542, 1.122, 1.1241, 1.0882 << 65 G4double w = fTaul*(fTaul+2.) ;
81 0.93155, 1.0047, 0.55379, 0.43289, 0.3263 << 66 fBetheBlochLow = (fTaul+1.)*(fTaul+1.)*log(2.*w/rate)/w - 1. ;
82 0.71418, 0.71453, 0.5911, 0.70263, 0.6804 << 67 fBetheBlochLow = 2.*fZ*twopi_mc2_rcl2*fBetheBlochLow ;
83 0.71801, 0.83048, 1.1222, 1.2381, 1.045, << 68
84 0.66401, 0.84912, 0.88433, 0.80746, 0.4335 << 69 fClow = sqrt(fTaul)*fBetheBlochLow;
85 1.9578, 1.0257} ; << 70 fAlow = 6.458040 * fClow/fTau0;
86 << 71 G4double Taum = 0.035*fZ3*MeV/proton_mass_c2;
87 static const G4double lFactor[92] = { << 72 fBlow =-3.229020*fClow/(fTau0*sqrt(Taum));
88 1.0, 1.0, 1.1, 1.06, 1.01, 1.03, 1.04, << 73
89 0.82, 0.81, 0.83, 0.88, 1.0, 0.95, 0.97, << 74 // Shell correction factors
90 0.98, 0.97, 0.96, 0.93, 0.91, 0.9, 0.88, << 75 fShellCorrectionVector = new G4double[3];
91 0.9, 0.85, 0.9, 0.9, 0.91, 0.92, 0.9, << 76 G4double rate2 = rate*rate;
92 0.9, 0.88, 0.9, 0.88, 0.88, 0.9, 0.9, << 77
93 0.9, 0.9, 0.96, 1.2, 0.9, 0.88, 0.88, << 78 fShellCorrectionVector[0] = ( 1.10289e5 + 5.14781e8*rate)*rate2 ;
94 0.92, 0.95, 0.99, 1.03, 1.05, 1.07, 1.08, << 79 fShellCorrectionVector[1] = ( 7.93805e3 - 2.22565e7*rate)*rate2 ;
95 1.08, 1.08, 1.09, 1.09, 1.1, 1.11, 1.12, << 80 fShellCorrectionVector[2] = (-9.92256e1 + 2.10823e5*rate)*rate2 ;
96 1.17, 1.2, 1.18, 1.17, 1.17, 1.16, 1.16, << 81 }
97 1.16, 1.16} ; << 82
98 // clang-format on << 83 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
99 << 84
100 fVFermi = vFermi[iz]; << 85 G4IonisParamElm::~G4IonisParamElm()
101 fLFactor = lFactor[iz]; << 86 {
102 << 87 if (fShellCorrectionVector) delete [] fShellCorrectionVector;
103 // obsolete parameters for ionisation <<
104 fTau0 = 0.1 * fZ3 * MeV / proton_mass_c2; <<
105 fTaul = 2. * MeV / proton_mass_c2; <<
106 <<
107 // compute the Bethe-Bloch formula for energ <<
108 G4double rate = fMeanExcitationEnergy / elec <<
109 G4double w = fTaul * (fTaul + 2.); <<
110 fBetheBlochLow = (fTaul + 1.) * (fTaul + 1.) <<
111 fBetheBlochLow = 2. * fZ * twopi_mc2_rcl2 * <<
112 <<
113 fClow = std::sqrt(fTaul) * fBetheBlochLow; <<
114 fAlow = 6.458040 * fClow / fTau0; <<
115 G4double Taum = 0.035 * fZ3 * MeV / proton_m <<
116 fBlow = -3.229020 * fClow / (fTau0 * std::sq <<
117 <<
118 // Shell correction parameterization <<
119 fShellCorrectionVector = new G4double[3]; / <<
120 rate = 0.001 * fMeanExcitationEnergy / eV; <<
121 G4double rate2 = rate * rate; <<
122 fShellCorrectionVector[0] = (0.422377 + 3.85 <<
123 fShellCorrectionVector[1] = (0.0304043 - 0.1 <<
124 fShellCorrectionVector[2] = (-0.00038106 + 0 <<
125 } 88 }
126 89
127 //....oooOO0OOooo........oooOO0OOooo........oo 90 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
128 91
129 G4IonisParamElm::~G4IonisParamElm() { delete[] << 92 G4IonisParamElm::G4IonisParamElm(G4IonisParamElm& right)
>> 93 {
>> 94 *this = right;
>> 95 }
>> 96
>> 97 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
>> 98
>> 99 const G4IonisParamElm& G4IonisParamElm::operator=(const G4IonisParamElm& right)
>> 100 {
>> 101 if (this != &right)
>> 102 {
>> 103 fZ = right.fZ;
>> 104 fZ3 = right.fZ3;
>> 105 fZZ3 = right.fZZ3;
>> 106 flogZ3 = right.flogZ3;
>> 107 fTau0 = right.fTau0;
>> 108 fTaul = right.fTaul;
>> 109 fBetheBlochLow = right.fBetheBlochLow;
>> 110 fAlow = right.fAlow;
>> 111 fBlow = right.fBlow;
>> 112 fClow = right.fClow;
>> 113 fMeanExcitationEnergy = right.fMeanExcitationEnergy;
>> 114 if (fShellCorrectionVector) delete [] fShellCorrectionVector;
>> 115 fShellCorrectionVector = new G4double[3];
>> 116 fShellCorrectionVector[0] = right.fShellCorrectionVector[0];
>> 117 fShellCorrectionVector[1] = right.fShellCorrectionVector[1];
>> 118 fShellCorrectionVector[2] = right.fShellCorrectionVector[2];
>> 119 }
>> 120 return *this;
>> 121 }
>> 122
>> 123 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
>> 124
>> 125 G4int G4IonisParamElm::operator==(const G4IonisParamElm& right) const
>> 126 {
>> 127 return (this == (G4IonisParamElm *) &right);
>> 128 }
>> 129
>> 130 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
>> 131
>> 132 G4int G4IonisParamElm::operator!=(const G4IonisParamElm& right) const
>> 133 {
>> 134 return (this != (G4IonisParamElm *) &right);
>> 135 }
>> 136
>> 137 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... ....oooOO0OOooo....
130 138