1 | // |
---|
2 | // ******************************************************************** |
---|
3 | // * License and Disclaimer * |
---|
4 | // * * |
---|
5 | // * The Geant4 software is copyright of the Copyright Holders of * |
---|
6 | // * the Geant4 Collaboration. It is provided under the terms and * |
---|
7 | // * conditions of the Geant4 Software License, included in the file * |
---|
8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
---|
9 | // * include a list of copyright holders. * |
---|
10 | // * * |
---|
11 | // * Neither the authors of this software system, nor their employing * |
---|
12 | // * institutes,nor the agencies providing financial support for this * |
---|
13 | // * work make any representation or warranty, express or implied, * |
---|
14 | // * regarding this software system or assume any liability for its * |
---|
15 | // * use. Please see the license in the file LICENSE and URL above * |
---|
16 | // * for the full disclaimer and the limitation of liability. * |
---|
17 | // * * |
---|
18 | // * This code implementation is the result of the scientific and * |
---|
19 | // * technical work of the GEANT4 collaboration. * |
---|
20 | // * By using, copying, modifying or distributing the software (or * |
---|
21 | // * any work based on the software) you agree to acknowledge its * |
---|
22 | // * use in resulting scientific publications, and indicate your * |
---|
23 | // * acceptance of all terms of the Geant4 Software license. * |
---|
24 | // ******************************************************************** |
---|
25 | // |
---|
26 | // |
---|
27 | // $Id: G4PAIxSection.hh,v 1.12 2006/06/29 19:50:44 gunter Exp $ |
---|
28 | // GEANT4 tag $Name: $ |
---|
29 | // |
---|
30 | // |
---|
31 | // G4PAIxSection.hh -- header file |
---|
32 | // |
---|
33 | // GEANT 4 class header file --- Copyright CERN 1995 |
---|
34 | // CERB Geneva Switzerland |
---|
35 | // |
---|
36 | // for information related to this code, please, contact |
---|
37 | // CERN, CN Division, ASD Group |
---|
38 | // |
---|
39 | // Preparation of ionizing collision cross section according to Photo Absorption |
---|
40 | // Ionization (PAI) model for simulation of ionization energy losses in very thin |
---|
41 | // absorbers. Author: Vladimir.Grichine@cern.ch |
---|
42 | // |
---|
43 | // History: |
---|
44 | // |
---|
45 | // 19.10.03, V. Grichine: Integral dEdx was added for G4PAIModel class |
---|
46 | // |
---|
47 | // 13.05.03, V. Grichine: Numerical instability was fixed in SumOverInterval/Border |
---|
48 | // functions |
---|
49 | // 10.02.02, V. Grichine: New functions and arrays/gets for Cerenkov and |
---|
50 | // plasmon collisions dN/dx |
---|
51 | // 27.10.99, V. Grichine: Bug fixed in constructors, 3rd constructor and |
---|
52 | // GetStepEnergyLoss(step) were added, fDelta = 0.005 |
---|
53 | // 30.11.97, V. Grichine: 2nd version |
---|
54 | // 11.06.97, V. Grichine: 1st version |
---|
55 | |
---|
56 | #ifndef G4PAIXSECTION_HH |
---|
57 | #define G4PAIXSECTION_HH |
---|
58 | |
---|
59 | #include "G4ios.hh" |
---|
60 | #include "globals.hh" |
---|
61 | #include "Randomize.hh" |
---|
62 | |
---|
63 | #include"G4SandiaTable.hh" |
---|
64 | |
---|
65 | class G4MaterialCutsCouple; |
---|
66 | class G4Sandiatable; |
---|
67 | |
---|
68 | |
---|
69 | class G4PAIxSection |
---|
70 | { |
---|
71 | public: |
---|
72 | // Constructors |
---|
73 | G4PAIxSection( G4MaterialCutsCouple* matCC); |
---|
74 | |
---|
75 | G4PAIxSection( G4int materialIndex, |
---|
76 | G4double maxEnergyTransfer ) ; |
---|
77 | |
---|
78 | G4PAIxSection( G4int materialIndex, // for proton loss table |
---|
79 | G4double maxEnergyTransfer, |
---|
80 | G4double betaGammaSq , |
---|
81 | G4double** photoAbsCof, G4int intNumber ) ; |
---|
82 | |
---|
83 | G4PAIxSection( G4int materialIndex, // test constructor |
---|
84 | G4double maxEnergyTransfer, |
---|
85 | G4double betaGammaSq ) ; |
---|
86 | |
---|
87 | // G4PAIxSection(const G4PAIxSection& right) ; |
---|
88 | |
---|
89 | // Destructor |
---|
90 | |
---|
91 | ~G4PAIxSection() ; |
---|
92 | |
---|
93 | // Operators |
---|
94 | // G4PAIxSection& operator=(const G4PAIxSection& right) ; |
---|
95 | // G4int operator==(const G4PAIxSection& right)const ; |
---|
96 | // G4int operator!=(const G4PAIxSection& right)const ; |
---|
97 | |
---|
98 | // Methods |
---|
99 | |
---|
100 | // General control functions |
---|
101 | |
---|
102 | void InitPAI() ; |
---|
103 | |
---|
104 | void NormShift( G4double betaGammaSq ) ; |
---|
105 | |
---|
106 | void SplainPAI( G4double betaGammaSq ) ; |
---|
107 | |
---|
108 | // Physical methods |
---|
109 | |
---|
110 | |
---|
111 | G4double RutherfordIntegral( G4int intervalNumber, |
---|
112 | G4double limitLow, |
---|
113 | G4double limitHigh ) ; |
---|
114 | |
---|
115 | G4double ImPartDielectricConst( G4int intervalNumber, |
---|
116 | G4double energy ) ; |
---|
117 | |
---|
118 | G4double RePartDielectricConst(G4double energy) ; |
---|
119 | |
---|
120 | G4double DifPAIxSection( G4int intervalNumber, |
---|
121 | G4double betaGammaSq ) ; |
---|
122 | |
---|
123 | G4double PAIdNdxCerenkov( G4int intervalNumber, |
---|
124 | G4double betaGammaSq ) ; |
---|
125 | |
---|
126 | G4double PAIdNdxPlasmon( G4int intervalNumber, |
---|
127 | G4double betaGammaSq ) ; |
---|
128 | |
---|
129 | void IntegralPAIxSection() ; |
---|
130 | void IntegralCerenkov() ; |
---|
131 | void IntegralPlasmon() ; |
---|
132 | |
---|
133 | G4double SumOverInterval(G4int intervalNumber) ; |
---|
134 | G4double SumOverIntervaldEdx(G4int intervalNumber) ; |
---|
135 | G4double SumOverInterCerenkov(G4int intervalNumber) ; |
---|
136 | G4double SumOverInterPlasmon(G4int intervalNumber) ; |
---|
137 | |
---|
138 | G4double SumOverBorder( G4int intervalNumber, |
---|
139 | G4double energy ) ; |
---|
140 | G4double SumOverBorderdEdx( G4int intervalNumber, |
---|
141 | G4double energy ) ; |
---|
142 | G4double SumOverBordCerenkov( G4int intervalNumber, |
---|
143 | G4double energy ) ; |
---|
144 | G4double SumOverBordPlasmon( G4int intervalNumber, |
---|
145 | G4double energy ) ; |
---|
146 | |
---|
147 | G4double GetStepEnergyLoss( G4double step ) ; |
---|
148 | G4double GetStepCerenkovLoss( G4double step ) ; |
---|
149 | G4double GetStepPlasmonLoss( G4double step ) ; |
---|
150 | |
---|
151 | // Inline access functions |
---|
152 | |
---|
153 | G4int GetNumberOfGammas() const { return fNumberOfGammas ; } |
---|
154 | |
---|
155 | G4int GetSplineSize() const { return fSplineNumber ; } |
---|
156 | |
---|
157 | G4int GetIntervalNumber() const { return fIntervalNumber ; } |
---|
158 | |
---|
159 | G4double GetEnergyInterval(G4int i){ return fEnergyInterval[i] ; } |
---|
160 | |
---|
161 | G4double GetDifPAIxSection(G4int i){ return fDifPAIxSection[i] ; } |
---|
162 | G4double GetPAIdNdxCrenkov(G4int i){ return fdNdxCerenkov[i] ; } |
---|
163 | G4double GetPAIdNdxPlasmon(G4int i){ return fdNdxPlasmon[i] ; } |
---|
164 | |
---|
165 | G4double GetMeanEnergyLoss() const {return fIntegralPAIxSection[0] ; } |
---|
166 | G4double GetMeanCerenkovLoss() const {return fIntegralCerenkov[0] ; } |
---|
167 | G4double GetMeanPlasmonLoss() const {return fIntegralPlasmon[0] ; } |
---|
168 | |
---|
169 | G4double GetNormalizationCof() const { return fNormalizationCof ; } |
---|
170 | |
---|
171 | inline G4double GetPAItable(G4int i,G4int j) const ; |
---|
172 | |
---|
173 | inline G4double GetLorentzFactor(G4int i) const ; |
---|
174 | |
---|
175 | inline G4double GetSplineEnergy(G4int i) const ; |
---|
176 | |
---|
177 | inline G4double GetIntegralPAIxSection(G4int i) const ; |
---|
178 | inline G4double GetIntegralPAIdEdx(G4int i) const ; |
---|
179 | inline G4double GetIntegralCerenkov(G4int i) const ; |
---|
180 | inline G4double GetIntegralPlasmon(G4int i) const ; |
---|
181 | |
---|
182 | protected : |
---|
183 | |
---|
184 | private : |
---|
185 | |
---|
186 | // Local class constants |
---|
187 | |
---|
188 | static const G4double fDelta ; // energy shift from interval border = 0.001 |
---|
189 | static const G4double fError ; // error in lin-log approximation = 0.005 |
---|
190 | |
---|
191 | static G4int fNumberOfGammas ; // = 111 ; |
---|
192 | static const G4double fLorentzFactor[112] ; // static gamma array |
---|
193 | |
---|
194 | static |
---|
195 | const G4int fRefGammaNumber ; // The number of gamma for creation of spline (15) |
---|
196 | |
---|
197 | G4int fIntervalNumber ; // The number of energy intervals |
---|
198 | G4double fNormalizationCof ; // Normalization cof for PhotoAbsorptionXsection |
---|
199 | |
---|
200 | // G4double fBetaGammaSq ; // (beta*gamma)^2 |
---|
201 | |
---|
202 | G4double fDensity ; // Current density |
---|
203 | G4double fElectronDensity ; // Current electron (number) density |
---|
204 | G4int fSplineNumber ; // Current size of spline |
---|
205 | |
---|
206 | // Arrays of Sandia coefficients |
---|
207 | |
---|
208 | G4OrderedTable* fMatSandiaMatrix; |
---|
209 | G4SandiaTable* fSandia; |
---|
210 | |
---|
211 | G4double* fEnergyInterval ; |
---|
212 | G4double* fA1 ; |
---|
213 | G4double* fA2 ; |
---|
214 | G4double* fA3 ; |
---|
215 | G4double* fA4 ; |
---|
216 | |
---|
217 | static |
---|
218 | const G4int fMaxSplineSize ; // Max size of output splain arrays = 500 |
---|
219 | |
---|
220 | /* ****************** |
---|
221 | G4double* fSplineEnergy ; // energy points of splain |
---|
222 | G4double* fRePartDielectricConst ; // Real part of dielectric const |
---|
223 | G4double* fImPartDielectricConst ; // Imaginary part of dielectric const |
---|
224 | G4double* fIntegralTerm ; // Integral term in PAI cross section |
---|
225 | G4double* fDifPAIxSection ; // Differential PAI cross section |
---|
226 | G4double* fIntegralPAIxSection ; // Integral PAI cross section ? |
---|
227 | */ /////////////// |
---|
228 | |
---|
229 | |
---|
230 | G4double fSplineEnergy[500] ; // energy points of splain |
---|
231 | G4double fRePartDielectricConst[500] ; // Real part of dielectric const |
---|
232 | G4double fImPartDielectricConst[500] ; // Imaginary part of dielectric const |
---|
233 | G4double fIntegralTerm[500] ; // Integral term in PAI cross section |
---|
234 | G4double fDifPAIxSection[500] ; // Differential PAI cross section |
---|
235 | G4double fdNdxCerenkov[500] ; // dNdx of Cerenkov collisions |
---|
236 | G4double fdNdxPlasmon[500] ; // dNdx of Plasmon collisions |
---|
237 | |
---|
238 | G4double fIntegralPAIxSection[500] ; // Integral PAI cross section ? |
---|
239 | G4double fIntegralPAIdEdx[500] ; // Integral PAI dEdx ? |
---|
240 | G4double fIntegralCerenkov[500] ; // Integral Cerenkov N>omega ? |
---|
241 | G4double fIntegralPlasmon[500] ; // Integral Plasmon N>omega ? |
---|
242 | |
---|
243 | G4double fPAItable[500][112] ; // Output array |
---|
244 | |
---|
245 | } ; |
---|
246 | |
---|
247 | //////////////// Inline methods ////////////////////////////////// |
---|
248 | // |
---|
249 | |
---|
250 | |
---|
251 | inline G4double G4PAIxSection::GetPAItable(G4int i, G4int j) const |
---|
252 | { |
---|
253 | return fPAItable[i][j] ; |
---|
254 | } |
---|
255 | |
---|
256 | inline G4double G4PAIxSection::GetLorentzFactor(G4int j) const |
---|
257 | { |
---|
258 | return fLorentzFactor[j] ; |
---|
259 | } |
---|
260 | |
---|
261 | inline G4double G4PAIxSection::GetSplineEnergy(G4int i) const |
---|
262 | { |
---|
263 | if(i < 1 || i > fSplineNumber) |
---|
264 | { |
---|
265 | G4Exception("Invalid argument in G4PAIxSection::GetSplineEnergy"); |
---|
266 | } |
---|
267 | return fSplineEnergy[i] ; |
---|
268 | } |
---|
269 | |
---|
270 | inline G4double G4PAIxSection::GetIntegralPAIxSection(G4int i) const |
---|
271 | { |
---|
272 | if(i < 1 || i > fSplineNumber) |
---|
273 | { |
---|
274 | G4Exception("Invalid argument in G4PAIxSection::GetIntegralPAIxSection"); |
---|
275 | } |
---|
276 | return fIntegralPAIxSection[i] ; |
---|
277 | } |
---|
278 | |
---|
279 | inline G4double G4PAIxSection::GetIntegralPAIdEdx(G4int i) const |
---|
280 | { |
---|
281 | if(i < 1 || i > fSplineNumber) |
---|
282 | { |
---|
283 | G4Exception("Invalid argument in G4PAIxSection::GetIntegralPAIxSection"); |
---|
284 | } |
---|
285 | return fIntegralPAIdEdx[i] ; |
---|
286 | } |
---|
287 | |
---|
288 | inline G4double G4PAIxSection::GetIntegralCerenkov(G4int i) const |
---|
289 | { |
---|
290 | if(i < 1 || i > fSplineNumber) |
---|
291 | { |
---|
292 | G4Exception("Invalid argument in G4PAIxSection::GetIntegralCerenkov"); |
---|
293 | } |
---|
294 | return fIntegralCerenkov[i] ; |
---|
295 | } |
---|
296 | |
---|
297 | inline G4double G4PAIxSection::GetIntegralPlasmon(G4int i) const |
---|
298 | { |
---|
299 | if(i < 1 || i > fSplineNumber) |
---|
300 | { |
---|
301 | G4Exception("Invalid argument in G4PAIxSection::GetIntegralPlasmon"); |
---|
302 | } |
---|
303 | return fIntegralPlasmon[i] ; |
---|
304 | } |
---|
305 | |
---|
306 | #endif |
---|
307 | |
---|
308 | // ----------------- end of G4PAIxSection header file ------------------- |
---|