source: trunk/source/processes/electromagnetic/standard/include/G4PAIxSection.hh@ 1036

Last change on this file since 1036 was 1007, checked in by garnier, 17 years ago

update to geant4.9.2
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26//
27// $Id: G4PAIxSection.hh,v 1.15 2008/05/30 16:04:40 grichine Exp $
28// GEANT4 tag $Name: geant4-09-02 $
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
65class G4MaterialCutsCouple;
66class G4Sandiatable;
67
68
69class G4PAIxSection
70{
71public:
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 GetPhotonRange( G4double energy );
119 G4double GetElectronRange( G4double energy );
120
121 G4double RePartDielectricConst(G4double energy);
122
123 G4double DifPAIxSection( G4int intervalNumber,
124 G4double betaGammaSq );
125
126 G4double PAIdNdxCerenkov( G4int intervalNumber,
127 G4double betaGammaSq );
128 G4double PAIdNdxMM( G4int intervalNumber,
129 G4double betaGammaSq );
130
131 G4double PAIdNdxPlasmon( G4int intervalNumber,
132 G4double betaGammaSq );
133
134 G4double PAIdNdxResonance( G4int intervalNumber,
135 G4double betaGammaSq );
136
137 void IntegralPAIxSection();
138 void IntegralCerenkov();
139 void IntegralMM();
140 void IntegralPlasmon();
141 void IntegralResonance();
142
143 G4double SumOverInterval(G4int intervalNumber);
144 G4double SumOverIntervaldEdx(G4int intervalNumber);
145 G4double SumOverInterCerenkov(G4int intervalNumber);
146 G4double SumOverInterMM(G4int intervalNumber);
147 G4double SumOverInterPlasmon(G4int intervalNumber);
148 G4double SumOverInterResonance(G4int intervalNumber);
149
150 G4double SumOverBorder( G4int intervalNumber,
151 G4double energy );
152 G4double SumOverBorderdEdx( G4int intervalNumber,
153 G4double energy );
154 G4double SumOverBordCerenkov( G4int intervalNumber,
155 G4double energy );
156 G4double SumOverBordMM( G4int intervalNumber,
157 G4double energy );
158 G4double SumOverBordPlasmon( G4int intervalNumber,
159 G4double energy );
160 G4double SumOverBordResonance( G4int intervalNumber,
161 G4double energy );
162
163 G4double GetStepEnergyLoss( G4double step );
164 G4double GetStepCerenkovLoss( G4double step );
165 G4double GetStepMMLoss( G4double step );
166 G4double GetStepPlasmonLoss( G4double step );
167 G4double GetStepResonanceLoss( G4double step );
168
169 G4double GetEnergyTransfer();
170 G4double GetCerenkovEnergyTransfer();
171 G4double GetMMEnergyTransfer();
172 G4double GetPlasmonEnergyTransfer();
173 G4double GetResonanceEnergyTransfer();
174 G4double GetRutherfordEnergyTransfer();
175
176 // Inline access functions
177
178 G4int GetNumberOfGammas() const { return fNumberOfGammas; }
179
180 G4int GetSplineSize() const { return fSplineNumber; }
181
182 G4int GetIntervalNumber() const { return fIntervalNumber; }
183
184 G4double GetEnergyInterval(G4int i){ return fEnergyInterval[i]; }
185
186 G4double GetDifPAIxSection(G4int i){ return fDifPAIxSection[i]; }
187 G4double GetPAIdNdxCerenkov(G4int i){ return fdNdxCerenkov[i]; }
188 G4double GetPAIdNdxMM(G4int i){ return fdNdxMM[i]; }
189 G4double GetPAIdNdxPlasmon(G4int i){ return fdNdxPlasmon[i]; }
190 G4double GetPAIdNdxResonance(G4int i){ return fdNdxResonance[i]; }
191
192 G4double GetMeanEnergyLoss() const {return fIntegralPAIxSection[0]; }
193 G4double GetMeanCerenkovLoss() const {return fIntegralCerenkov[0]; }
194 G4double GetMeanMMLoss() const {return fIntegralMM[0]; }
195 G4double GetMeanPlasmonLoss() const {return fIntegralPlasmon[0]; }
196 G4double GetMeanResonanceLoss() const {return fIntegralResonance[0]; }
197
198 G4double GetNormalizationCof() const { return fNormalizationCof; }
199
200 inline G4double GetPAItable(G4int i,G4int j) const;
201
202 inline G4double GetLorentzFactor(G4int i) const;
203
204 inline G4double GetSplineEnergy(G4int i) const;
205
206 inline G4double GetIntegralPAIxSection(G4int i) const;
207 inline G4double GetIntegralPAIdEdx(G4int i) const;
208 inline G4double GetIntegralCerenkov(G4int i) const;
209 inline G4double GetIntegralMM(G4int i) const;
210 inline G4double GetIntegralPlasmon(G4int i) const;
211 inline G4double GetIntegralResonance(G4int i) const;
212
213protected :
214
215private :
216
217// Local class constants
218
219static const G4double fDelta; // energy shift from interval border = 0.001
220static const G4double fError; // error in lin-log approximation = 0.005
221
222static G4int fNumberOfGammas; // = 111;
223static const G4double fLorentzFactor[112]; // static gamma array
224
225static
226const G4int fRefGammaNumber ; // The number of gamma for creation of spline (15)
227
228G4int fIntervalNumber ; // The number of energy intervals
229G4double fNormalizationCof; // Normalization cof for PhotoAbsorptionXsection
230
231// G4double fBetaGammaSq; // (beta*gamma)^2
232
233 G4int fMaterialIndex; // current material index
234 G4double fDensity; // Current density
235 G4double fElectronDensity; // Current electron (number) density
236 G4int fSplineNumber; // Current size of spline
237
238// Arrays of Sandia coefficients
239
240 G4OrderedTable* fMatSandiaMatrix;
241 G4SandiaTable* fSandia;
242
243G4double* fEnergyInterval;
244G4double* fA1;
245G4double* fA2;
246G4double* fA3;
247G4double* fA4;
248
249static
250const G4int fMaxSplineSize ; // Max size of output splain arrays = 500
251
252/* ******************
253G4double* fSplineEnergy; // energy points of splain
254G4double* fRePartDielectricConst; // Real part of dielectric const
255G4double* fImPartDielectricConst; // Imaginary part of dielectric const
256G4double* fIntegralTerm; // Integral term in PAI cross section
257G4double* fDifPAIxSection; // Differential PAI cross section
258G4double* fIntegralPAIxSection; // Integral PAI cross section ?
259*/ ///////////////
260
261
262G4double fSplineEnergy[500]; // energy points of splain
263G4double fRePartDielectricConst[500]; // Real part of dielectric const
264G4double fImPartDielectricConst[500]; // Imaginary part of dielectric const
265G4double fIntegralTerm[500]; // Integral term in PAI cross section
266G4double fDifPAIxSection[500]; // Differential PAI cross section
267G4double fdNdxCerenkov[500]; // dNdx of Cerenkov collisions
268G4double fdNdxMM[500]; // dNdx of MM-Cerenkov collisions
269G4double fdNdxPlasmon[500]; // dNdx of Plasmon collisions
270G4double fdNdxResonance[500]; // dNdx of resonance collisions
271
272G4double fIntegralPAIxSection[500]; // Integral PAI cross section ?
273G4double fIntegralPAIdEdx[500]; // Integral PAI dEdx ?
274G4double fIntegralCerenkov[500]; // Integral Cerenkov N>omega ?
275G4double fIntegralMM[500]; // Integral MM-Cerenkov N>omega ?
276G4double fIntegralPlasmon[500]; // Integral Plasmon N>omega ?
277G4double fIntegralResonance[500]; // Integral resonance N>omega ?
278
279G4double fPAItable[500][112]; // Output array
280
281};
282
283//////////////// Inline methods //////////////////////////////////
284//
285
286
287inline G4double G4PAIxSection::GetPAItable(G4int i, G4int j) const
288{
289 return fPAItable[i][j];
290}
291
292inline G4double G4PAIxSection::GetLorentzFactor(G4int j) const
293{
294 return fLorentzFactor[j];
295}
296
297inline G4double G4PAIxSection::GetSplineEnergy(G4int i) const
298{
299 if(i < 1 || i > fSplineNumber)
300 {
301 G4Exception("Invalid argument in G4PAIxSection::GetSplineEnergy");
302 }
303 return fSplineEnergy[i];
304}
305
306inline G4double G4PAIxSection::GetIntegralPAIxSection(G4int i) const
307{
308 if(i < 1 || i > fSplineNumber)
309 {
310 G4Exception("Invalid argument in G4PAIxSection::GetIntegralPAIxSection");
311 }
312 return fIntegralPAIxSection[i];
313}
314
315inline G4double G4PAIxSection::GetIntegralPAIdEdx(G4int i) const
316{
317 if(i < 1 || i > fSplineNumber)
318 {
319 G4Exception("Invalid argument in G4PAIxSection::GetIntegralPAIxSection");
320 }
321 return fIntegralPAIdEdx[i];
322}
323
324inline G4double G4PAIxSection::GetIntegralCerenkov(G4int i) const
325{
326 if(i < 1 || i > fSplineNumber)
327 {
328 G4Exception("Invalid argument in G4PAIxSection::GetIntegralCerenkov");
329 }
330 return fIntegralCerenkov[i];
331}
332
333inline G4double G4PAIxSection::GetIntegralMM(G4int i) const
334{
335 if(i < 1 || i > fSplineNumber)
336 {
337 G4Exception("Invalid argument in G4PAIxSection::GetIntegralMM");
338 }
339 return fIntegralMM[i];
340}
341
342inline G4double G4PAIxSection::GetIntegralPlasmon(G4int i) const
343{
344 if(i < 1 || i > fSplineNumber)
345 {
346 G4Exception("Invalid argument in G4PAIxSection::GetIntegralPlasmon");
347 }
348 return fIntegralPlasmon[i];
349}
350
351inline G4double G4PAIxSection::GetIntegralResonance(G4int i) const
352{
353 if(i < 1 || i > fSplineNumber)
354 {
355 G4Exception("Invalid argument in G4PAIxSection::GetIntegralResonance");
356 }
357 return fIntegralResonance[i];
358}
359
360#endif
361
362// ----------------- end of G4PAIxSection header file -------------------
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