Geant4_10
G4hICRU49He.cc
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28 //
29 // GEANT4 Class file
30 //
31 //
32 // File name: G4hICRU49He
33 //
34 // Author: V.Ivanchenko (Vladimir.Ivanchenko@cern.ch)
35 //
36 // Creation date: 20 July 2000
37 //
38 // Modifications:
39 // 20/07/2000 V.Ivanchenko First implementation
40 // 18/09/2000 V.Ivanchenko clean up - all variable are the same as in ICRU
41 // 03/10/2000 V.Ivanchenko clean up accoding to CodeWizard
42 // 10/05/2001 V.Ivanchenko Clean up againist Linux compilation with -Wall
43 // 26/08/2004 V.Ivanchenko Fix a problem of effective charge
44 //
45 // Class Description:
46 //
47 // Electronic stopping power parametrised according to
48 // ICRU Report N49, 1993. J.F. Ziegler model for He ion.
49 //
50 // Class Description: End
51 //
52 // -------------------------------------------------------------------
53 //
54 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
55 
56 #include "G4hICRU49He.hh"
57 
58 #include "globals.hh"
59 #include "G4PhysicalConstants.hh"
60 #include "G4SystemOfUnits.hh"
61 #include "G4UnitsTable.hh"
62 #include "G4Material.hh"
63 
64 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
65 
67  rateMass(4.0026/1.007276),
68  iMolecula(0)
69 {;}
70 
71 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
72 
74 {;}
75 
76 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
77 
79 {
80  G4String chFormula = material->GetChemicalFormula() ;
81  G4String myFormula = G4String(" ");
82 
83  if (myFormula == chFormula ) {
84  if(1 == (material->GetNumberOfElements())) {return true;}
85  return false ;
86  }
87 
88  // ICRU Report N49, 1993. Power's model for He.
89  const size_t numberOfMolecula = 30 ;
90  static const G4String name[numberOfMolecula] = {
91  "H_2", "Be-Solid", "C-Solid", "Graphite", "N_2",
92  "O_2", "Al-Solid", "Si-Solid", "Ar-Solid", "Cu-Solid",
93  "Ge", "W-Solid", "Au-Solid", "Pb-Solid", "C_2H_2",
94  "CO_2", "Cellulose-Nitrat", "C_2H_4", "LiF",
95  "CH_4", "Nylon", "Polycarbonate", "(CH_2)_N-Polyetilene", "PMMA",
96  "(C_8H_8)_N", "SiO_2", "CsI", "H_2O", "H_2O-Gas"};
97 
98  // Special treatment for water in gas state
99 
100  myFormula = G4String("H_2O") ;
101  const G4State theState = material->GetState() ;
102  if( theState == kStateGas && myFormula == chFormula) {
103  chFormula = G4String("H_2O-Gas");
104  }
105 
106  // Search for the material in the table
107  for (size_t i=0; i<numberOfMolecula; i++) {
108  if (chFormula == name[i]) {
109  SetMoleculaNumber(i) ;
110  return true ;
111  }
112  }
113  return false ;
114 }
115 
116 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
117 
119  G4double kineticEnergy)
120 {
121  G4double ionloss = 0.0 ;
122 
123  // pure material (normally not the case for this function)
124  if(1 == (material->GetNumberOfElements())) {
125  G4double z = material->GetZ() ;
126  ionloss = ElectronicStoppingPower( z, kineticEnergy ) ;
127 
128  // The data and the fit from:
129  // ICRU Report N49, 1993. Power's model for He.
130  } else if ( iMolecula < 30 ) {
131 
132  // Reduced kinetic energy
133  // in internal units of parametrisation formula (MeV)
134  G4double T = kineticEnergy*rateMass/MeV ;
135 
136  static const G4double c[30][7] = {
137  {8.0080, 3.6287, 23.0700, 14.9900, 0.8507, 0.60, 2.0
138  },{ 13.3100, 3.7432, 39.4130, 12.1990, 1.0950, 0.38, 1.4
139  },{ 22.7240, 3.6040, 47.1810, 17.5490, 0.9040, 0.40, 1.4
140  },{ 24.4040, 2.4032, 48.9440, 27.9730, 1.2933, 0.40, 1.6
141  },{ 58.4719, 1.5115, 77.6421, 102.490, 1.5811, 0.50, 2.0
142  },{ 60.5408, 1.6297, 91.7601, 94.1260, 1.3662, 0.50, 2.0
143  },{ 48.4480, 6.4323, 59.2890, 18.3810, 0.4937, 0.48, 1.6
144  },{ 59.0346, 5.1305, 47.0866, 30.0857, 0.3500, 0.60, 2.0
145  },{ 71.8691, 2.8250, 51.1658, 57.1235, 0.4477, 0.60, 2.0
146  },{ 78.3520, 4.0961, 136.731, 28.4470, 1.0621, 0.52, 1.2
147  },{ 120.553, 1.5374, 49.8740, 82.2980, 0.8733, 0.45, 1.6
148  },{ 249.896, 0.6996, -37.274, 248.592, 1.1052, 0.50, 1.5
149  },{ 246.698, 0.6219, -58.391, 292.921, 0.8186, 0.56, 1.8
150  },{ 248.563, 0.6235, -36.8968, 306.960, 1.3214, 0.50, 2.0
151  },{ 25.5860, 1.7125, 154.723, 118.620, 2.2580, 0.50, 2.0
152  },{ 138.294, 25.6413, 231.873, 17.3780, 0.3218, 0.58, 1.3
153  },{ 83.2091, 1.1294, 135.7457, 190.865, 2.3461, 0.50, 2.0
154  },{ 263.542, 1.4754, 1541.446, 781.898, 1.9209, 0.40, 2.0
155  },{ 59.5545, 1.5354, 132.1523, 153.3537, 2.0262, 0.50, 2.0
156  },{ 31.7380, 19.820, 125.2100, 6.8910, 0.7242, 0.50, 1.1
157  },{ 31.7549, 1.5682, 97.4777, 106.0774, 2.3204, 0.50, 2.0
158  },{ 230.465, 4.8967, 1845.320, 358.641, 1.0774, 0.46, 1.2
159  },{ 423.444, 5.3761, 1189.114, 319.030, 0.7652, 0.48, 1.5
160  },{ 86.3410, 3.3322, 91.0433, 73.1091, 0.4650, 0.50, 2.0
161  },{ 146.105, 9.4344, 515.1500, 82.8860, 0.6239, 0.55, 1.5
162  },{ 238.050, 5.6901, 372.3575, 146.1835, 0.3992, 0.50, 2.0
163  },{ 124.2338, 2.6730, 133.8175, 99.4109, 0.7776, 0.50, 2.0
164  },{ 221.723, 1.5415, 87.7315, 192.5266, 1.0742, 0.50, 2.0
165  },{ 26.7537, 1.3717, 90.8007, 77.1587, 2.3264, 0.50, 2.0
166  },{ 37.6121, 1.8052, 73.0250, 66.2070, 1.4038, 0.50, 2.0} };
167 
168  G4double a1,a2 ;
169 
170  // Free electron gas model
171  if ( T < 0.001 ) {
172  G4double T0 = 0.001 ;
173  a1 = 1.0 - std::exp(-c[iMolecula][1]*std::pow(T0,-2.0+c[iMolecula][5])) ;
174  a2 = (c[iMolecula][0]*std::log(T0)/T0 + c[iMolecula][2]/T0) *
175  std::exp(-c[iMolecula][4]*std::pow(T0,-c[iMolecula][6])) +
176  c[iMolecula][3]/(T0*T0) ;
177 
178  ionloss *= std::sqrt(T/T0) ;
179 
180  // Main parametrisation
181  } else {
182  a1 = 1.0 - std::exp(-c[iMolecula][1]*std::pow(T,-2.0+c[iMolecula][5])) ;
183  a2 = (c[iMolecula][0]*std::log(T)/T + c[iMolecula][2]/T) *
184  std::exp(-c[iMolecula][4]*std::pow(T,-c[iMolecula][6])) +
185  c[iMolecula][3]/(T*T) ;
186  }
187 
188  // He effective charge
189  G4double z = (material->GetTotNbOfElectPerVolume()) /
190  (material->GetTotNbOfAtomsPerVolume()) ;
191 
192  ionloss = a1*a2 / HeEffChargeSquare(z, kineticEnergy*rateMass) ;
193 
194  if ( ionloss < 0.0) ionloss = 0.0 ;
195  }
196 
197  return ionloss ;
198 }
199 
200 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
201 
203  G4double kineticEnergy) const
204 {
205  G4double ionloss ;
206  G4int i = G4int(z)-1 ; // index of atom
207  if(i < 0) i = 0 ;
208  if(i > 91) i = 91 ;
209 
210  // The data and the fit from:
211  // ICRU Report 49, 1993. Ziegler's type of parametrisations
212  // Reduced kinetic energy
213 
214  // He energy in internal units of parametrisation formula (MeV)
215  G4double T = kineticEnergy*rateMass/MeV ;
216 
217  static const G4double a[92][5] = {
218  {0.35485, 0.6456, 6.01525, 20.8933, 4.3515
219  },{ 0.58, 0.59, 6.3, 130.0, 44.07
220  },{ 1.42, 0.49, 12.25, 32.0, 9.161
221  },{ 2.1895, 0.47183,7.2362, 134.30, 197.96
222  },{ 3.691, 0.4128, 18.48, 50.72, 9.0
223  },{ 3.83523, 0.42993,12.6125, 227.41, 188.97
224  },{ 1.9259, 0.5550, 27.15125, 26.0665, 6.2768
225  },{ 2.81015, 0.4759, 50.0253, 10.556, 1.0382
226  },{ 1.533, 0.531, 40.44, 18.41, 2.718
227  },{ 2.303, 0.4861, 37.01, 37.96, 5.092
228  },{ 9.894, 0.3081, 23.65, 0.384, 92.93
229  },{ 4.3, 0.47, 34.3, 3.3, 12.74
230  },{ 2.5, 0.625, 45.7, 0.1, 4.359
231  },{ 2.1, 0.65, 49.34, 1.788, 4.133
232  },{ 1.729, 0.6562, 53.41, 2.405, 3.845
233  },{ 1.402, 0.6791, 58.98, 3.528, 3.211
234  },{ 1.117, 0.7044, 69.69, 3.705, 2.156
235  },{ 2.291, 0.6284, 73.88, 4.478, 2.066
236  },{ 8.554, 0.3817, 83.61, 11.84, 1.875
237  },{ 6.297, 0.4622, 65.39, 10.14, 5.036
238  },{ 5.307, 0.4918, 61.74, 12.4, 6.665
239  },{ 4.71, 0.5087, 65.28, 8.806, 5.948
240  },{ 6.151, 0.4524, 83.0, 18.31, 2.71
241  },{ 6.57, 0.4322, 84.76, 15.53, 2.779
242  },{ 5.738, 0.4492, 84.6, 14.18, 3.101
243  },{ 5.013, 0.4707, 85.8, 16.55, 3.211
244  },{ 4.32, 0.4947, 76.14, 10.85, 5.441
245  },{ 4.652, 0.4571, 80.73, 22.0, 4.952
246  },{ 3.114, 0.5236, 76.67, 7.62, 6.385
247  },{ 3.114, 0.5236, 76.67, 7.62, 7.502
248  },{ 3.114, 0.5236, 76.67, 7.62, 8.514
249  },{ 5.746, 0.4662, 79.24, 1.185, 7.993
250  },{ 2.792, 0.6346, 106.1, 0.2986, 2.331
251  },{ 4.667, 0.5095, 124.3, 2.102, 1.667
252  },{ 2.44, 0.6346, 105.0, 0.83, 2.851
253  },{ 1.413, 0.7377, 147.9, 1.466, 1.016
254  },{ 11.72, 0.3826, 102.8, 9.231, 4.371
255  },{ 7.126, 0.4804, 119.3, 5.784, 2.454
256  },{ 11.61, 0.3955, 146.7, 7.031, 1.423
257  },{ 10.99, 0.41, 163.9, 7.1, 1.052
258  },{ 9.241, 0.4275, 163.1, 7.954, 1.102
259  },{ 9.276, 0.418, 157.1, 8.038, 1.29
260  },{ 3.999, 0.6152, 97.6, 1.297, 5.792
261  },{ 4.306, 0.5658, 97.99, 5.514, 5.754
262  },{ 3.615, 0.6197, 86.26, 0.333, 8.689
263  },{ 5.8, 0.49, 147.2, 6.903, 1.289
264  },{ 5.6, 0.49, 130.0, 10.0, 2.844
265  },{ 3.55, 0.6068, 124.7, 1.112, 3.119
266  },{ 3.6, 0.62, 105.8, 0.1692, 6.026
267  },{ 5.4, 0.53, 103.1, 3.931, 7.767
268  },{ 3.97, 0.6459, 131.8, 0.2233, 2.723
269  },{ 3.65, 0.64, 126.8, 0.6834, 3.411
270  },{ 3.118, 0.6519, 164.9, 1.208, 1.51
271  },{ 3.949, 0.6209, 200.5, 1.878, 0.9126
272  },{ 14.4, 0.3923, 152.5, 8.354, 2.597
273  },{ 10.99, 0.4599, 138.4, 4.811, 3.726
274  },{ 16.6, 0.3773, 224.1, 6.28, 0.9121
275  },{ 10.54, 0.4533, 159.3, 4.832, 2.529
276  },{ 10.33, 0.4502, 162.0, 5.132, 2.444
277  },{ 10.15, 0.4471, 165.6, 5.378, 2.328
278  },{ 9.976, 0.4439, 168.0, 5.721, 2.258
279  },{ 9.804, 0.4408, 176.2, 5.675, 1.997
280  },{ 14.22, 0.363, 228.4, 7.024, 1.016
281  },{ 9.952, 0.4318, 233.5, 5.065, 0.9244
282  },{ 9.272, 0.4345, 210.0, 4.911, 1.258
283  },{ 10.13, 0.4146, 225.7, 5.525, 1.055
284  },{ 8.949, 0.4304, 213.3, 5.071, 1.221
285  },{ 11.94, 0.3783, 247.2, 6.655, 0.849
286  },{ 8.472, 0.4405, 195.5, 4.051, 1.604
287  },{ 8.301, 0.4399, 203.7, 3.667, 1.459
288  },{ 6.567, 0.4858, 193.0, 2.65, 1.66
289  },{ 5.951, 0.5016, 196.1, 2.662, 1.589
290  },{ 7.495, 0.4523, 251.4, 3.433, 0.8619
291  },{ 6.335, 0.4825, 255.1, 2.834, 0.8228
292  },{ 4.314, 0.5558, 214.8, 2.354, 1.263
293  },{ 4.02, 0.5681, 219.9, 2.402, 1.191
294  },{ 3.836, 0.5765, 210.2, 2.742, 1.305
295  },{ 4.68, 0.5247, 244.7, 2.749, 0.8962
296  },{ 3.223, 0.5883, 232.7, 2.954, 1.05
297  },{ 2.892, 0.6204, 208.6, 2.415, 1.416
298  },{ 4.728, 0.5522, 217.0, 3.091, 1.386
299  },{ 6.18, 0.52, 170.0, 4.0, 3.224
300  },{ 9.0, 0.47, 198.0, 3.8, 2.032
301  },{ 2.324, 0.6997, 216.0, 1.599, 1.399
302  },{ 1.961, 0.7286, 223.0, 1.621, 1.296
303  },{ 1.75, 0.7427, 350.1, 0.9789, 0.5507
304  },{ 10.31, 0.4613, 261.2, 4.738, 0.9899
305  },{ 7.962, 0.519, 235.7, 4.347, 1.313
306  },{ 6.227, 0.5645, 231.9, 3.961, 1.379
307  },{ 5.246, 0.5947, 228.6, 4.027, 1.432
308  },{ 5.408, 0.5811, 235.7, 3.961, 1.358
309  },{ 5.218, 0.5828, 245.0, 3.838, 1.25}
310  };
311 
312  // Free electron gas model
313  if ( T < 0.001 ) {
314  G4double slow = a[i][0] ;
315  G4double shigh = std::log( 1.0 + a[i][3]*1000.0 + a[i][4]*0.001 )
316  * a[i][2]*1000.0 ;
317  ionloss = slow*shigh / (slow + shigh) ;
318  ionloss *= std::sqrt(T*1000.0) ;
319 
320  // Main parametrisation
321  } else {
322  G4double slow = a[i][0] * std::pow((T*1000.0), a[i][1]) ;
323  G4double shigh = std::log( 1.0 + a[i][3]/T + a[i][4]*T ) * a[i][2]/T ;
324  ionloss = slow*shigh / (slow + shigh) ;
325 
326  }
327  if ( ionloss < 0.0) ionloss = 0.0 ;
328 
329  // He effective charge
330  ionloss /= HeEffChargeSquare(z, kineticEnergy*rateMass) ;
331 
332  return ionloss;
333 }
334 
335 
336 
337 
338 
339 
340 
341 
342 
343 
344 
345 
G4double GetZ() const
Definition: G4Material.cc:606
G4double GetTotNbOfElectPerVolume() const
Definition: G4Material.hh:210
tuple a
Definition: test.py:11
G4State
Definition: G4Material.hh:114
const G4String & GetChemicalFormula() const
Definition: G4Material.hh:177
const XML_Char * name
Definition: expat.h:151
int G4int
Definition: G4Types.hh:78
G4double HeEffChargeSquare(const G4double z, const G4double kineticEnergyHe) const
string material
Definition: eplot.py:19
bool G4bool
Definition: G4Types.hh:79
G4double GetTotNbOfAtomsPerVolume() const
Definition: G4Material.hh:207
tuple z
Definition: test.py:28
G4double StoppingPower(const G4Material *material, G4double kineticEnergy)
Definition: G4hICRU49He.cc:118
size_t GetNumberOfElements() const
Definition: G4Material.hh:184
G4State GetState() const
Definition: G4Material.hh:179
double G4double
Definition: G4Types.hh:76
tuple c
Definition: test.py:13
G4bool HasMaterial(const G4Material *material)
Definition: G4hICRU49He.cc:78
G4double ElectronicStoppingPower(G4double z, G4double kineticEnergy) const
Definition: G4hICRU49He.cc:202