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G4ecpssrBaseLixsModel.cc
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26 
27 #include <iostream>
28 
29 #include "G4ecpssrBaseLixsModel.hh"
30 
31 #include "globals.hh"
32 #include "G4PhysicalConstants.hh"
33 #include "G4SystemOfUnits.hh"
34 #include "G4AtomicTransitionManager.hh"
35 #include "G4NistManager.hh"
36 #include "G4Proton.hh"
37 #include "G4Alpha.hh"
38 #include "G4LinLogInterpolation.hh"
39 #include "G4Exp.hh"
40 
41 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
42 
43 G4ecpssrBaseLixsModel::G4ecpssrBaseLixsModel()
44 {
45  verboseLevel=0;
46 
47  // Storing FLi data needed for 0.2 to 3.0 velocities region
48 
49  char *path = getenv("G4LEDATA");
50 
51  if (!path) {
52  G4Exception("G4ecpssrLCrossSection::G4ecpssrBaseLixsModel()","em0006", FatalException ,"G4LEDATA environment variable not set");
53  return;
54  }
55  std::ostringstream fileName1;
56  std::ostringstream fileName2;
57 
58  fileName1 << path << "/pixe/uf/FL1.dat";
59  fileName2 << path << "/pixe/uf/FL2.dat";
60 
61  // Reading of FL1.dat
62 
63  std::ifstream FL1(fileName1.str().c_str());
64  if (!FL1) G4Exception("G4ecpssrLCrossSection::G4ecpssrBaseLixsModel()","em0003",FatalException, "error opening FL1 data file");
65 
66  dummyVec1.push_back(0.);
67 
68  while(!FL1.eof())
69  {
70  double x1;
71  double y1;
72 
73  FL1>>x1>>y1;
74 
75  // Mandatory vector initialization
76  if (x1 != dummyVec1.back())
77  {
78  dummyVec1.push_back(x1);
79  aVecMap1[x1].push_back(-1.);
80  }
81 
82  FL1>>FL1Data[x1][y1];
83 
84  if (y1 != aVecMap1[x1].back()) aVecMap1[x1].push_back(y1);
85  }
86 
87  // Reading of FL2.dat
88 
89  std::ifstream FL2(fileName2.str().c_str());
90  if (!FL2) G4Exception("G4ecpssrLCrossSection::G4ecpssrBaseLixsModel()","em0003", FatalException," error opening FL2 data file");
91 
92  dummyVec2.push_back(0.);
93 
94  while(!FL2.eof())
95  {
96  double x2;
97  double y2;
98 
99  FL2>>x2>>y2;
100 
101  // Mandatory vector initialization
102  if (x2 != dummyVec2.back())
103  {
104  dummyVec2.push_back(x2);
105  aVecMap2[x2].push_back(-1.);
106  }
107 
108  FL2>>FL2Data[x2][y2];
109 
110  if (y2 != aVecMap2[x2].back()) aVecMap2[x2].push_back(y2);
111  }
112 }
113 
114 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
115 
116 G4ecpssrBaseLixsModel::~G4ecpssrBaseLixsModel()
117 {}
118 
119 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
120 
121 G4double G4ecpssrBaseLixsModel::ExpIntFunction(G4int n,G4double x)
122 
123 {
124 // this function allows fast evaluation of the n order exponential integral function En(x)
125 
126  G4int i;
127  G4int ii;
128  G4int nm1;
129  G4double a;
130  G4double b;
131  G4double c;
132  G4double d;
133  G4double del;
134  G4double fact;
135  G4double h;
136  G4double psi;
137  G4double ans = 0;
138  static const G4double euler= 0.5772156649;
139  static const G4int maxit= 100;
140  static const G4double fpmin = 1.0e-30;
141  static const G4double eps = 1.0e-7;
142  nm1=n-1;
143  if (n<0 || x<0.0 || (x==0.0 && (n==0 || n==1)))
144  G4cout << "*** WARNING in G4ecpssrBaseLixsModel::ExpIntFunction: bad arguments in ExpIntFunction"
145  << G4endl;
146  else {
147  if (n==0) ans=G4Exp(-x)/x;
148  else {
149  if (x==0.0) ans=1.0/nm1;
150  else {
151  if (x > 1.0) {
152  b=x+n;
153  c=1.0/fpmin;
154  d=1.0/b;
155  h=d;
156  for (i=1;i<=maxit;i++) {
157  a=-i*(nm1+i);
158  b +=2.0;
159  d=1.0/(a*d+b);
160  c=b+a/c;
161  del=c*d;
162  h *=del;
163  if (std::fabs(del-1.0) < eps) {
164  ans=h*G4Exp(-x);
165  return ans;
166  }
167  }
168  } else {
169  ans = (nm1!=0 ? 1.0/nm1 : -std::log(x)-euler);
170  fact=1.0;
171  for (i=1;i<=maxit;i++) {
172  fact *=-x/i;
173  if (i !=nm1) del = -fact/(i-nm1);
174  else {
175  psi = -euler;
176  for (ii=1;ii<=nm1;ii++) psi +=1.0/ii;
177  del=fact*(-std::log(x)+psi);
178  }
179  ans += del;
180  if (std::fabs(del) < std::fabs(ans)*eps) return ans;
181  }
182  }
183  }
184  }
185  }
186  return ans;
187 }
188 
189 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
190 
191 G4double G4ecpssrBaseLixsModel::CalculateL1CrossSection(G4int zTarget,G4double massIncident, G4double energyIncident)
192 {
193 
194  if (zTarget <=4) return 0.;
195 
196  //this L1-CrossSection calculation method is done according to Werner Brandt and Grzegorz Lapicki, Phys.Rev.A20 N2 (1979),
197  //and using data tables of O. Benka et al. At.Data Nucl.Data Tables Vol.22 No.3 (1978).
198 
199  G4NistManager* massManager = G4NistManager::Instance();
200 
201  G4AtomicTransitionManager* transitionManager = G4AtomicTransitionManager::Instance();
202 
203  G4double zIncident = 0;
204  G4Proton* aProtone = G4Proton::Proton();
205  G4Alpha* aAlpha = G4Alpha::Alpha();
206 
207  if (massIncident == aProtone->GetPDGMass() )
208  {
209  zIncident = (aProtone->GetPDGCharge())/eplus;
210  }
211  else
212  {
213  if (massIncident == aAlpha->GetPDGMass())
214  {
215  zIncident = (aAlpha->GetPDGCharge())/eplus;
216  }
217  else
218  {
219  G4cout << "*** WARNING in G4ecpssrBaseLixsModel::CalculateL1CrossSection : Proton or Alpha incident particles only. " << G4endl;
220  G4cout << massIncident << ", " << aAlpha->GetPDGMass() << " (alpha)" << aProtone->GetPDGMass() << " (proton)" << G4endl;
221  return 0;
222  }
223  }
224 
225  G4double l1BindingEnergy = transitionManager->Shell(zTarget,1)->BindingEnergy(); //Observed binding energy of L1-subshell
226  G4double massTarget = (massManager->GetAtomicMassAmu(zTarget))*amu_c2;
227  G4double systemMass =((massIncident*massTarget)/(massIncident+massTarget))/electron_mass_c2; //Mass of the system (projectile, target)
228  static const G4double zlshell= 4.15;
229  // *** see Benka, ADANDT 22, p 223
230  G4double screenedzTarget = zTarget-zlshell; //Effective nuclear charge as seen by electrons in L1-sub shell
231  static const G4double rydbergMeV= 13.6056923e-6;
232 
233  static const G4double nl= 2.;
234  // *** see Benka, ADANDT 22, p 220, f3
235  G4double tetal1 = (l1BindingEnergy*nl*nl)/((screenedzTarget*screenedzTarget)*rydbergMeV); //Screening parameter
236  // *** see Benka, ADANDT 22, p 220, f3
237 
238  if (verboseLevel>0) G4cout << " tetal1=" << tetal1<< G4endl;
239 
240  G4double reducedEnergy = (energyIncident*electron_mass_c2)/(massIncident*rydbergMeV*screenedzTarget*screenedzTarget);
241  // *** also called etaS
242  // *** see Benka, ADANDT 22, p 220, f3
243 
244  static const G4double bohrPow2Barn=(Bohr_radius*Bohr_radius)/barn ; //Bohr radius of hydrogen
245 
246  G4double sigma0 = 8.*pi*(zIncident*zIncident)*bohrPow2Barn*std::pow(screenedzTarget,-4.);
247  // *** see Benka, ADANDT 22, p 220, f2, for protons
248  // *** see Basbas, Phys Rev A7, p 1000
249 
250  G4double velocityl1 = CalculateVelocity(1, zTarget, massIncident, energyIncident); // Scaled velocity
251 
252  if (verboseLevel>0) G4cout << " velocityl1=" << velocityl1<< G4endl;
253 
254  static const G4double l1AnalyticalApproximation= 1.5;
255  G4double x1 =(nl*l1AnalyticalApproximation)/velocityl1;
256  // *** 1.5 is cK = cL1 (it is 1.25 for L2 & L3)
257  // *** see Brandt, Phys Rev A20, p 469, f16 in expression of h
258 
259  if (verboseLevel>0) G4cout << " x1=" << x1<< G4endl;
260 
261  G4double electrIonizationEnergyl1=0.;
262  // *** see Basbas, Phys Rev A17, p1665, f27
263  // *** see Brandt, Phys Rev A20, p469
264  // *** see Liu, Comp Phys Comm 97, p325, f A5
265 
266  if ( x1<=0.035) electrIonizationEnergyl1= 0.75*pi*(std::log(1./(x1*x1))-1.);
267  else
268  {
269  if ( x1<=3.)
270  electrIonizationEnergyl1 =G4Exp(-2.*x1)/(0.031+(0.213*std::pow(x1,0.5))+(0.005*x1)-(0.069*std::pow(x1,3./2.))+(0.324*x1*x1));
271  else
272  {if ( x1<=11.) electrIonizationEnergyl1 =2.*G4Exp(-2.*x1)/std::pow(x1,1.6);}
273  }
274 
275  G4double hFunctionl1 =(electrIonizationEnergyl1*2.*nl)/(tetal1*std::pow(velocityl1,3)); //takes into account the polarization effect
276  // *** see Brandt, Phys Rev A20, p 469, f16
277 
278  if (verboseLevel>0) G4cout << " hFunctionl1=" << hFunctionl1<< G4endl;
279 
280  G4double gFunctionl1 = (1.+(9.*velocityl1)+(31.*velocityl1*velocityl1)+(49.*std::pow(velocityl1,3.))+(162.*std::pow(velocityl1,4.))+(63.*std::pow(velocityl1,5.))+(18.*std::pow(velocityl1,6.))+(1.97*std::pow(velocityl1,7.)))/std::pow(1.+velocityl1,9.);//takes into account the reduced binding effect
281  // *** see Brandt, Phys Rev A20, p 469, f19
282 
283  if (verboseLevel>0) G4cout << " gFunctionl1=" << gFunctionl1<< G4endl;
284 
285  G4double sigmaPSS_l1 = 1.+(((2.*zIncident)/(screenedzTarget*tetal1))*(gFunctionl1-hFunctionl1)); //Binding-polarization factor
286  // *** also called dzeta
287  // *** also called epsilon
288  // *** see Basbas, Phys Rev A17, p1667, f45
289 
290  if (verboseLevel>0) G4cout << "sigmaPSS_l1 =" << sigmaPSS_l1<< G4endl;
291 
292  const G4double cNaturalUnit= 137.;
293 
294  G4double yl1Formula=0.4*(screenedzTarget/cNaturalUnit)*(screenedzTarget/cNaturalUnit)/(nl*velocityl1/sigmaPSS_l1);
295  // *** also called yS
296  // *** see Brandt, Phys Rev A20, p467, f6
297  // *** see Brandt, Phys Rev A23, p1728
298 
299  G4double l1relativityCorrection = std::pow((1.+(1.1*yl1Formula*yl1Formula)),0.5)+yl1Formula; // Relativistic correction parameter
300  // *** also called mRS
301  // *** see Brandt, Phys Rev A20, p467, f6
302 
303  //G4double reducedVelocity_l1 = velocityl1*std::pow(l1relativityCorrection,0.5); //Reduced velocity parameter
304 
305  G4double L1etaOverTheta2;
306 
307  G4double universalFunction_l1 = 0.;
308 
309  G4double sigmaPSSR_l1;
310 
311  // low velocity formula
312  // *****************
313  if ( velocityl1 <20. )
314  {
315 
316  L1etaOverTheta2 =(reducedEnergy* l1relativityCorrection)/((tetal1*sigmaPSS_l1)*(tetal1*sigmaPSS_l1));
317  // *** 1) RELATIVISTIC CORRECTION ADDED
318  // *** 2) sigma_PSS_l1 ADDED
319  // *** reducedEnergy is etaS, l1relativityCorrection is mRS
320  // *** see Phys Rev A20, p468, top
321 
322  if ( ((tetal1*sigmaPSS_l1) >=0.2) && ((tetal1*sigmaPSS_l1) <=2.6670) && (L1etaOverTheta2>=0.1e-3) && (L1etaOverTheta2<=0.866e2) )
323  universalFunction_l1 = FunctionFL1((tetal1*sigmaPSS_l1),L1etaOverTheta2);
324 
325  if (verboseLevel>0) G4cout << "at low velocity range, universalFunction_l1 =" << universalFunction_l1 << G4endl;
326 
327  sigmaPSSR_l1 = (sigma0/(tetal1*sigmaPSS_l1))*universalFunction_l1;// Plane-wave Born -Aproximation L1-subshell ionisation Cross Section
328  // *** see Benka, ADANDT 22, p220, f1
329 
330  if (verboseLevel>0) G4cout << " at low velocity range, sigma PWBA L1 CS = " << sigmaPSSR_l1<< G4endl;
331  }
332  else
333  {
334  L1etaOverTheta2 = reducedEnergy/(tetal1*tetal1);
335  // Medium & high velocity
336  // *** 1) NO RELATIVISTIC CORRECTION
337  // *** 2) NO sigma_PSS_l1
338  // *** see Benka, ADANDT 22, p223
339 
340  if ( (tetal1 >=0.2) && (tetal1 <=2.6670) && (L1etaOverTheta2>=0.1e-3) && (L1etaOverTheta2<=0.866e2) )
341  universalFunction_l1 = FunctionFL1(tetal1,L1etaOverTheta2);
342 
343  if (verboseLevel>0) G4cout << "at medium and high velocity range, universalFunction_l1 =" << universalFunction_l1 << G4endl;
344 
345  sigmaPSSR_l1 = (sigma0/tetal1)*universalFunction_l1;// Plane-wave Born -Aproximation L1-subshell ionisation Cross Section
346  // *** see Benka, ADANDT 22, p220, f1
347 
348  if (verboseLevel>0) G4cout << " sigma PWBA L1 CS at medium and high velocity range = " << sigmaPSSR_l1<< G4endl;
349  }
350 
351  G4double pssDeltal1 = (4./(systemMass *sigmaPSS_l1*tetal1))*(sigmaPSS_l1/velocityl1)*(sigmaPSS_l1/velocityl1);
352  // *** also called dzeta*delta
353  // *** see Brandt, Phys Rev A23, p1727, f B2
354 
355  if (verboseLevel>0) G4cout << " pssDeltal1=" << pssDeltal1<< G4endl;
356 
357  if (pssDeltal1>1) return 0.;
358 
359  G4double energyLossl1 = std::pow(1-pssDeltal1,0.5);
360  // *** also called z
361  // *** see Brandt, Phys Rev A23, p1727, after f B2
362 
363  if (verboseLevel>0) G4cout << " energyLossl1=" << energyLossl1<< G4endl;
364 
365  G4double coulombDeflectionl1 =
366  (8.*pi*zIncident/systemMass)*std::pow(tetal1*sigmaPSS_l1,-2.)*std::pow(velocityl1/sigmaPSS_l1,-3.)*(zTarget/screenedzTarget);
367  // *** see Brandt, Phys Rev A20, v2s and f2 and B2
368  // *** with factor n2 compared to Brandt, Phys Rev A23, p1727, f B3
369 
370  G4double cParameterl1 =2.* coulombDeflectionl1/(energyLossl1*(energyLossl1+1.));
371  // *** see Brandt, Phys Rev A23, p1727, f B4
372 
373  G4double coulombDeflectionFunction_l1 = 9.*ExpIntFunction(10,cParameterl1); //Coulomb-deflection effect correction
374 
375  if (verboseLevel>0) G4cout << " coulombDeflectionFunction_l1 =" << coulombDeflectionFunction_l1 << G4endl;
376 
377  G4double crossSection_L1 = coulombDeflectionFunction_l1 * sigmaPSSR_l1;
378 
379  //ECPSSR L1 -subshell cross section is estimated at perturbed-stationnairy-state(PSS)
380  //and reduced by the energy-loss(E),the Coulomb deflection(C),and the relativity(R) effects
381 
382  if (verboseLevel>0) G4cout << " crossSection_L1 =" << crossSection_L1 << G4endl;
383 
384  if (crossSection_L1 >= 0)
385  {
386  return crossSection_L1 * barn;
387  }
388 
389  else {return 0;}
390 }
391 
392 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
393 
394 G4double G4ecpssrBaseLixsModel::CalculateL2CrossSection(G4int zTarget,G4double massIncident, G4double energyIncident)
395 
396 {
397  if (zTarget <=13 ) return 0.;
398 
399  // this L2-CrossSection calculation method is done according to Werner Brandt and Grzegorz Lapicki, Phys.Rev.A20 N2 (1979),
400  // and using data tables of O. Benka et al. At.Data Nucl.Data Tables Vol.22 No.3 (1978).
401 
402  G4NistManager* massManager = G4NistManager::Instance();
403 
404  G4AtomicTransitionManager* transitionManager = G4AtomicTransitionManager::Instance();
405 
406  G4double zIncident = 0;
407 
408  G4Proton* aProtone = G4Proton::Proton();
409  G4Alpha* aAlpha = G4Alpha::Alpha();
410 
411  if (massIncident == aProtone->GetPDGMass() )
412  zIncident = (aProtone->GetPDGCharge())/eplus;
413 
414  else
415  {
416  if (massIncident == aAlpha->GetPDGMass())
417  zIncident = (aAlpha->GetPDGCharge())/eplus;
418 
419  else
420  {
421  G4cout << "*** WARNING in G4ecpssrBaseLixsModel::CalculateL2CrossSection : Proton or Alpha incident particles only. " << G4endl;
422  G4cout << massIncident << ", " << aAlpha->GetPDGMass() << " (alpha)" << aProtone->GetPDGMass() << " (proton)" << G4endl;
423  return 0;
424  }
425  }
426 
427  G4double l2BindingEnergy = transitionManager->Shell(zTarget,2)->BindingEnergy(); //Observed binding energy of L2-subshell
428 
429  G4double massTarget = (massManager->GetAtomicMassAmu(zTarget))*amu_c2;
430 
431  G4double systemMass =((massIncident*massTarget)/(massIncident+massTarget))/electron_mass_c2; //Mass of the system (projectile, target)
432 
433  const G4double zlshell= 4.15;
434 
435  G4double screenedzTarget = zTarget-zlshell; //Effective nuclear charge as seen by electrons in L2-subshell
436 
437  const G4double rydbergMeV= 13.6056923e-6;
438 
439  const G4double nl= 2.;
440 
441  G4double tetal2 = (l2BindingEnergy*nl*nl)/((screenedzTarget*screenedzTarget)*rydbergMeV); //Screening parameter
442 
443  if (verboseLevel>0) G4cout << " tetal2=" << tetal2<< G4endl;
444 
445  G4double reducedEnergy = (energyIncident*electron_mass_c2)/(massIncident*rydbergMeV*screenedzTarget*screenedzTarget);
446 
447  const G4double bohrPow2Barn=(Bohr_radius*Bohr_radius)/barn ; //Bohr radius of hydrogen
448 
449  G4double sigma0 = 8.*pi*(zIncident*zIncident)*bohrPow2Barn*std::pow(screenedzTarget,-4.);
450 
451  G4double velocityl2 = CalculateVelocity(2, zTarget, massIncident, energyIncident); // Scaled velocity
452 
453  if (verboseLevel>0) G4cout << " velocityl2=" << velocityl2<< G4endl;
454 
455  const G4double l23AnalyticalApproximation= 1.25;
456 
457  G4double x2 = (nl*l23AnalyticalApproximation)/velocityl2;
458 
459  if (verboseLevel>0) G4cout << " x2=" << x2<< G4endl;
460 
461  G4double electrIonizationEnergyl2=0.;
462 
463  if ( x2<=0.035) electrIonizationEnergyl2= 0.75*pi*(std::log(1./(x2*x2))-1.);
464  else
465  {
466  if ( x2<=3.)
467  electrIonizationEnergyl2 =G4Exp(-2.*x2)/(0.031+(0.213*std::pow(x2,0.5))+(0.005*x2)-(0.069*std::pow(x2,3./2.))+(0.324*x2*x2));
468  else
469  {if ( x2<=11.) electrIonizationEnergyl2 =2.*G4Exp(-2.*x2)/std::pow(x2,1.6); }
470  }
471 
472  G4double hFunctionl2 =(electrIonizationEnergyl2*2.*nl)/(tetal2*std::pow(velocityl2,3)); //takes into account the polarization effect
473 
474  if (verboseLevel>0) G4cout << " hFunctionl2=" << hFunctionl2<< G4endl;
475 
476  G4double gFunctionl2 = (1.+(10.*velocityl2)+(45.*velocityl2*velocityl2)+(102.*std::pow(velocityl2,3.))+(331.*std::pow(velocityl2,4.))+(6.7*std::pow(velocityl2,5.))+(58.*std::pow(velocityl2,6.))+(7.8*std::pow(velocityl2,7.))+ (0.888*std::pow(velocityl2,8.)) )/std::pow(1.+velocityl2,10.);
477  //takes into account the reduced binding effect
478 
479  if (verboseLevel>0) G4cout << " gFunctionl2=" << gFunctionl2<< G4endl;
480 
481  G4double sigmaPSS_l2 = 1.+(((2.*zIncident)/(screenedzTarget*tetal2))*(gFunctionl2-hFunctionl2)); //Binding-polarization factor
482 
483  if (verboseLevel>0) G4cout << " sigmaPSS_l2=" << sigmaPSS_l2<< G4endl;
484 
485  const G4double cNaturalUnit= 137.;
486 
487  G4double yl2Formula=0.15*(screenedzTarget/cNaturalUnit)*(screenedzTarget/cNaturalUnit)/(velocityl2/sigmaPSS_l2);
488 
489  G4double l2relativityCorrection = std::pow((1.+(1.1*yl2Formula*yl2Formula)),0.5)+yl2Formula; // Relativistic correction parameter
490 
491  G4double L2etaOverTheta2;
492 
493  G4double universalFunction_l2 = 0.;
494 
495  G4double sigmaPSSR_l2 ;
496 
497  if ( velocityl2 < 20. )
498  {
499 
500  L2etaOverTheta2 = (reducedEnergy*l2relativityCorrection)/((sigmaPSS_l2*tetal2)*(sigmaPSS_l2*tetal2));
501 
502  if ( (tetal2*sigmaPSS_l2>=0.2) && (tetal2*sigmaPSS_l2<=2.6670) && (L2etaOverTheta2>=0.1e-3) && (L2etaOverTheta2<=0.866e2) )
503  universalFunction_l2 = FunctionFL2((tetal2*sigmaPSS_l2),L2etaOverTheta2);
504 
505  sigmaPSSR_l2 = (sigma0/(tetal2*sigmaPSS_l2))*universalFunction_l2;
506 
507  if (verboseLevel>0) G4cout << " sigma PWBA L2 CS at low velocity range = " << sigmaPSSR_l2<< G4endl;
508  }
509  else
510  {
511 
512  L2etaOverTheta2 = reducedEnergy /(tetal2*tetal2);
513 
514  if ( (tetal2>=0.2) && (tetal2<=2.6670) && (L2etaOverTheta2>=0.1e-3) && (L2etaOverTheta2<=0.866e2) )
515  universalFunction_l2 = FunctionFL2((tetal2),L2etaOverTheta2);
516 
517  sigmaPSSR_l2 = (sigma0/tetal2)*universalFunction_l2;
518 
519  if (verboseLevel>0) G4cout << " sigma PWBA L2 CS at medium and high velocity range = " << sigmaPSSR_l2<< G4endl;
520 
521  }
522 
523  G4double pssDeltal2 = (4./(systemMass*sigmaPSS_l2*tetal2))*(sigmaPSS_l2/velocityl2)*(sigmaPSS_l2/velocityl2);
524 
525  if (pssDeltal2>1) return 0.;
526 
527  G4double energyLossl2 = std::pow(1-pssDeltal2,0.5);
528 
529  if (verboseLevel>0) G4cout << " energyLossl2=" << energyLossl2<< G4endl;
530 
531  G4double coulombDeflectionl2
532  =(8.*pi*zIncident/systemMass)*std::pow(tetal2*sigmaPSS_l2,-2.)*std::pow(velocityl2/sigmaPSS_l2,-3.)*(zTarget/screenedzTarget);
533 
534  G4double cParameterl2 = 2.*coulombDeflectionl2/(energyLossl2*(energyLossl2+1.));
535 
536  G4double coulombDeflectionFunction_l2 = 11.*ExpIntFunction(12,cParameterl2); //Coulomb-deflection effect correction
537  // *** see Brandt, Phys Rev A10, p477, f25
538 
539  if (verboseLevel>0) G4cout << " coulombDeflectionFunction_l2 =" << coulombDeflectionFunction_l2 << G4endl;
540 
541  G4double crossSection_L2 = coulombDeflectionFunction_l2 * sigmaPSSR_l2;
542  //ECPSSR L2 -subshell cross section is estimated at perturbed-stationnairy-state(PSS)
543  //and reduced by the energy-loss(E),the Coulomb deflection(C),and the relativity(R) effects
544 
545  if (verboseLevel>0) G4cout << " crossSection_L2 =" << crossSection_L2 << G4endl;
546 
547  if (crossSection_L2 >= 0)
548  {
549  return crossSection_L2 * barn;
550  }
551  else {return 0;}
552 }
553 
554 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
555 
556 
557 G4double G4ecpssrBaseLixsModel::CalculateL3CrossSection(G4int zTarget,G4double massIncident, G4double energyIncident)
558 
559 {
560  if (zTarget <=13) return 0.;
561 
562  //this L3-CrossSection calculation method is done according to Werner Brandt and Grzegorz Lapicki, Phys.Rev.A20 N2 (1979),
563  //and using data tables of O. Benka et al. At.Data Nucl.Data Tables Vol.22 No.3 (1978).
564 
565  G4NistManager* massManager = G4NistManager::Instance();
566 
567  G4AtomicTransitionManager* transitionManager = G4AtomicTransitionManager::Instance();
568 
569  G4double zIncident = 0;
570 
571  G4Proton* aProtone = G4Proton::Proton();
572  G4Alpha* aAlpha = G4Alpha::Alpha();
573 
574  if (massIncident == aProtone->GetPDGMass() )
575 
576  zIncident = (aProtone->GetPDGCharge())/eplus;
577 
578  else
579  {
580  if (massIncident == aAlpha->GetPDGMass())
581 
582  zIncident = (aAlpha->GetPDGCharge())/eplus;
583 
584  else
585  {
586  G4cout << "*** WARNING in G4ecpssrBaseLixsModel::CalculateL3CrossSection : Proton or Alpha incident particles only. " << G4endl;
587  G4cout << massIncident << ", " << aAlpha->GetPDGMass() << " (alpha)" << aProtone->GetPDGMass() << " (proton)" << G4endl;
588  return 0;
589  }
590  }
591 
592  G4double l3BindingEnergy = transitionManager->Shell(zTarget,3)->BindingEnergy();
593 
594  G4double massTarget = (massManager->GetAtomicMassAmu(zTarget))*amu_c2;
595 
596  G4double systemMass =((massIncident*massTarget)/(massIncident+massTarget))/electron_mass_c2;//Mass of the system (projectile, target)
597 
598  const G4double zlshell= 4.15;
599 
600  G4double screenedzTarget = zTarget-zlshell;//Effective nuclear charge as seen by electrons in L3-subshell
601 
602  const G4double rydbergMeV= 13.6056923e-6;
603 
604  const G4double nl= 2.;
605 
606  G4double tetal3 = (l3BindingEnergy*nl*nl)/((screenedzTarget*screenedzTarget)*rydbergMeV);//Screening parameter
607 
608  if (verboseLevel>0) G4cout << " tetal3=" << tetal3<< G4endl;
609 
610  G4double reducedEnergy = (energyIncident*electron_mass_c2)/(massIncident*rydbergMeV*screenedzTarget*screenedzTarget);
611 
612  const G4double bohrPow2Barn=(Bohr_radius*Bohr_radius)/barn ;//Bohr radius of hydrogen
613 
614  G4double sigma0 = 8.*pi*(zIncident*zIncident)*bohrPow2Barn*std::pow(screenedzTarget,-4.);
615 
616  G4double velocityl3 = CalculateVelocity(3, zTarget, massIncident, energyIncident);// Scaled velocity
617 
618  if (verboseLevel>0) G4cout << " velocityl3=" << velocityl3<< G4endl;
619 
620  const G4double l23AnalyticalApproximation= 1.25;
621 
622  G4double x3 = (nl*l23AnalyticalApproximation)/velocityl3;
623 
624  if (verboseLevel>0) G4cout << " x3=" << x3<< G4endl;
625 
626  G4double electrIonizationEnergyl3=0.;
627 
628  if ( x3<=0.035) electrIonizationEnergyl3= 0.75*pi*(std::log(1./(x3*x3))-1.);
629  else
630  {
631  if ( x3<=3.) electrIonizationEnergyl3 =G4Exp(-2.*x3)/(0.031+(0.213*std::pow(x3,0.5))+(0.005*x3)-(0.069*std::pow(x3,3./2.))+(0.324*x3*x3));
632  else
633  {
634  if ( x3<=11.) electrIonizationEnergyl3 =2.*G4Exp(-2.*x3)/std::pow(x3,1.6);}
635  }
636 
637  G4double hFunctionl3 =(electrIonizationEnergyl3*2.*nl)/(tetal3*std::pow(velocityl3,3));//takes into account the polarization effect
638 
639  if (verboseLevel>0) G4cout << " hFunctionl3=" << hFunctionl3<< G4endl;
640 
641  G4double gFunctionl3 = (1.+(10.*velocityl3)+(45.*velocityl3*velocityl3)+(102.*std::pow(velocityl3,3.))+(331.*std::pow(velocityl3,4.))+(6.7*std::pow(velocityl3,5.))+(58.*std::pow(velocityl3,6.))+(7.8*std::pow(velocityl3,7.))+ (0.888*std::pow(velocityl3,8.)) )/std::pow(1.+velocityl3,10.);
642  //takes into account the reduced binding effect
643 
644  if (verboseLevel>0) G4cout << " gFunctionl3=" << gFunctionl3<< G4endl;
645 
646  G4double sigmaPSS_l3 = 1.+(((2.*zIncident)/(screenedzTarget*tetal3))*(gFunctionl3-hFunctionl3));//Binding-polarization factor
647 
648  if (verboseLevel>0) G4cout << "sigmaPSS_l3 =" << sigmaPSS_l3<< G4endl;
649 
650  const G4double cNaturalUnit= 137.;
651 
652  G4double yl3Formula=0.15*(screenedzTarget/cNaturalUnit)*(screenedzTarget/cNaturalUnit)/(velocityl3/sigmaPSS_l3);
653 
654  G4double l3relativityCorrection = std::pow((1.+(1.1*yl3Formula*yl3Formula)),0.5)+yl3Formula; // Relativistic correction parameter
655 
656  G4double L3etaOverTheta2;
657 
658  G4double universalFunction_l3 = 0.;
659 
660  G4double sigmaPSSR_l3;
661 
662  if ( velocityl3 < 20. )
663  {
664 
665  L3etaOverTheta2 = (reducedEnergy* l3relativityCorrection)/((sigmaPSS_l3*tetal3)*(sigmaPSS_l3*tetal3));
666 
667  if ( (tetal3*sigmaPSS_l3>=0.2) && (tetal3*sigmaPSS_l3<=2.6670) && (L3etaOverTheta2>=0.1e-3) && (L3etaOverTheta2<=0.866e2) )
668 
669  universalFunction_l3 = 2.*FunctionFL2((tetal3*sigmaPSS_l3), L3etaOverTheta2 );
670 
671  sigmaPSSR_l3 = (sigma0/(tetal3*sigmaPSS_l3))*universalFunction_l3;
672 
673  if (verboseLevel>0) G4cout << " sigma PWBA L3 CS at low velocity range = " << sigmaPSSR_l3<< G4endl;
674 
675  }
676 
677  else
678 
679  {
680 
681  L3etaOverTheta2 = reducedEnergy/(tetal3*tetal3);
682 
683  if ( (tetal3>=0.2) && (tetal3<=2.6670) && (L3etaOverTheta2>=0.1e-3) && (L3etaOverTheta2<=0.866e2) )
684 
685  universalFunction_l3 = 2.*FunctionFL2(tetal3, L3etaOverTheta2 );
686 
687  sigmaPSSR_l3 = (sigma0/tetal3)*universalFunction_l3;
688 
689  if (verboseLevel>0) G4cout << " sigma PWBA L3 CS at medium and high velocity range = " << sigmaPSSR_l3<< G4endl;
690  }
691 
692  G4double pssDeltal3 = (4./(systemMass*sigmaPSS_l3*tetal3))*(sigmaPSS_l3/velocityl3)*(sigmaPSS_l3/velocityl3);
693 
694  if (verboseLevel>0) G4cout << " pssDeltal3=" << pssDeltal3<< G4endl;
695 
696  if (pssDeltal3>1) return 0.;
697 
698  G4double energyLossl3 = std::pow(1-pssDeltal3,0.5);
699 
700  if (verboseLevel>0) G4cout << " energyLossl3=" << energyLossl3<< G4endl;
701 
702  G4double coulombDeflectionl3 =
703  (8.*pi*zIncident/systemMass)*std::pow(tetal3*sigmaPSS_l3,-2.)*std::pow(velocityl3/sigmaPSS_l3,-3.)*(zTarget/screenedzTarget);
704 
705  G4double cParameterl3 = 2.*coulombDeflectionl3/(energyLossl3*(energyLossl3+1.));
706 
707  G4double coulombDeflectionFunction_l3 = 11.*ExpIntFunction(12,cParameterl3);//Coulomb-deflection effect correction
708  // *** see Brandt, Phys Rev A10, p477, f25
709 
710  if (verboseLevel>0) G4cout << " coulombDeflectionFunction_l3 =" << coulombDeflectionFunction_l3 << G4endl;
711 
712  G4double crossSection_L3 = coulombDeflectionFunction_l3 * sigmaPSSR_l3;
713  //ECPSSR L3 -subshell cross section is estimated at perturbed-stationnairy-state(PSS)
714  //and reduced by the energy-loss(E),the Coulomb deflection(C),and the relativity(R) effects
715 
716  if (verboseLevel>0) G4cout << " crossSection_L3 =" << crossSection_L3 << G4endl;
717 
718  if (crossSection_L3 >= 0)
719  {
720  return crossSection_L3 * barn;
721  }
722  else {return 0;}
723 }
724 
725 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
726 
727 G4double G4ecpssrBaseLixsModel::CalculateVelocity(G4int subShell, G4int zTarget, G4double massIncident, G4double energyIncident)
728 
729 {
730 
731  G4AtomicTransitionManager* transitionManager = G4AtomicTransitionManager::Instance();
732 
733  G4double liBindingEnergy = transitionManager->Shell(zTarget,subShell)->BindingEnergy();
734 
735  G4Proton* aProtone = G4Proton::Proton();
736  G4Alpha* aAlpha = G4Alpha::Alpha();
737 
738  if (!((massIncident == aProtone->GetPDGMass()) || (massIncident == aAlpha->GetPDGMass())))
739  {
740  G4cout << "*** WARNING in G4ecpssrBaseLixsModel::CalculateVelocity : Proton or Alpha incident particles only. " << G4endl;
741  G4cout << massIncident << ", " << aAlpha->GetPDGMass() << " (alpha)" << aProtone->GetPDGMass() << " (proton)" << G4endl;
742  return 0;
743  }
744 
745  const G4double zlshell= 4.15;
746 
747  G4double screenedzTarget = zTarget- zlshell;
748 
749  const G4double rydbergMeV= 13.6056923e-6;
750 
751  const G4double nl= 2.;
752 
753  G4double tetali = (liBindingEnergy*nl*nl)/(screenedzTarget*screenedzTarget*rydbergMeV);
754 
755  G4double reducedEnergy = (energyIncident*electron_mass_c2)/(massIncident*rydbergMeV*screenedzTarget*screenedzTarget);
756 
757  G4double velocity = 2.*nl*std::pow(reducedEnergy,0.5)/tetali;
758  // *** see Brandt, Phys Rev A10, p10, f4
759 
760  return velocity;
761 }
762 
763 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
764 
765 G4double G4ecpssrBaseLixsModel::FunctionFL1(G4double k, G4double theta)
766 {
767 
768  G4double sigma = 0.;
769  G4double valueT1 = 0;
770  G4double valueT2 = 0;
771  G4double valueE21 = 0;
772  G4double valueE22 = 0;
773  G4double valueE12 = 0;
774  G4double valueE11 = 0;
775  G4double xs11 = 0;
776  G4double xs12 = 0;
777  G4double xs21 = 0;
778  G4double xs22 = 0;
779 
780  // PROTECTION TO ALLOW INTERPOLATION AT MINIMUM AND MAXIMUM Eta/Theta2 values
781 
782  if (
783  theta==8.66e-4 ||
784  theta==8.66e-3 ||
785  theta==8.66e-2 ||
786  theta==8.66e-1 ||
787  theta==8.66e+00 ||
788  theta==8.66e+01
789  ) theta=theta-1e-12;
790 
791  if (
792  theta==1.e-4 ||
793  theta==1.e-3 ||
794  theta==1.e-2 ||
795  theta==1.e-1 ||
796  theta==1.e+00 ||
797  theta==1.e+01
798  ) theta=theta+1e-12;
799 
800  // END PROTECTION
801 
802  std::vector<double>::iterator t2 = std::upper_bound(dummyVec1.begin(),dummyVec1.end(), k);
803  std::vector<double>::iterator t1 = t2-1;
804 
805  std::vector<double>::iterator e12 = std::upper_bound(aVecMap1[(*t1)].begin(),aVecMap1[(*t1)].end(), theta);
806  std::vector<double>::iterator e11 = e12-1;
807 
808  std::vector<double>::iterator e22 = std::upper_bound(aVecMap1[(*t2)].begin(),aVecMap1[(*t2)].end(), theta);
809  std::vector<double>::iterator e21 = e22-1;
810 
811  valueT1 =*t1;
812  valueT2 =*t2;
813  valueE21 =*e21;
814  valueE22 =*e22;
815  valueE12 =*e12;
816  valueE11 =*e11;
817 
818  xs11 = FL1Data[valueT1][valueE11];
819  xs12 = FL1Data[valueT1][valueE12];
820  xs21 = FL1Data[valueT2][valueE21];
821  xs22 = FL1Data[valueT2][valueE22];
822 
823  if (verboseLevel>0)
824  G4cout
825  << valueT1 << " "
826  << valueT2 << " "
827  << valueE11 << " "
828  << valueE12 << " "
829  << valueE21 << " "
830  << valueE22 << " "
831  << xs11 << " "
832  << xs12 << " "
833  << xs21 << " "
834  << xs22 << " "
835  << G4endl;
836 
837  G4double xsProduct = xs11 * xs12 * xs21 * xs22;
838 
839  if (xs11==0 || xs12==0 ||xs21==0 ||xs22==0) return (0.);
840 
841  if (xsProduct != 0.)
842  {
843  sigma = QuadInterpolator( valueE11, valueE12,
844  valueE21, valueE22,
845  xs11, xs12,
846  xs21, xs22,
847  valueT1, valueT2,
848  k, theta );
849  }
850 
851  return sigma;
852 }
853 
854 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
855 
856 G4double G4ecpssrBaseLixsModel::FunctionFL2(G4double k, G4double theta)
857 {
858 
859  G4double sigma = 0.;
860  G4double valueT1 = 0;
861  G4double valueT2 = 0;
862  G4double valueE21 = 0;
863  G4double valueE22 = 0;
864  G4double valueE12 = 0;
865  G4double valueE11 = 0;
866  G4double xs11 = 0;
867  G4double xs12 = 0;
868  G4double xs21 = 0;
869  G4double xs22 = 0;
870 
871  // PROTECTION TO ALLOW INTERPOLATION AT MINIMUM AND MAXIMUM Eta/Theta2 values
872 
873  if (
874  theta==8.66e-4 ||
875  theta==8.66e-3 ||
876  theta==8.66e-2 ||
877  theta==8.66e-1 ||
878  theta==8.66e+00 ||
879  theta==8.66e+01
880  ) theta=theta-1e-12;
881 
882  if (
883  theta==1.e-4 ||
884  theta==1.e-3 ||
885  theta==1.e-2 ||
886  theta==1.e-1 ||
887  theta==1.e+00 ||
888  theta==1.e+01
889  ) theta=theta+1e-12;
890 
891  // END PROTECTION
892 
893  std::vector<double>::iterator t2 = std::upper_bound(dummyVec2.begin(),dummyVec2.end(), k);
894  std::vector<double>::iterator t1 = t2-1;
895 
896  std::vector<double>::iterator e12 = std::upper_bound(aVecMap2[(*t1)].begin(),aVecMap2[(*t1)].end(), theta);
897  std::vector<double>::iterator e11 = e12-1;
898 
899  std::vector<double>::iterator e22 = std::upper_bound(aVecMap2[(*t2)].begin(),aVecMap2[(*t2)].end(), theta);
900  std::vector<double>::iterator e21 = e22-1;
901 
902  valueT1 =*t1;
903  valueT2 =*t2;
904  valueE21 =*e21;
905  valueE22 =*e22;
906  valueE12 =*e12;
907  valueE11 =*e11;
908 
909  xs11 = FL2Data[valueT1][valueE11];
910  xs12 = FL2Data[valueT1][valueE12];
911  xs21 = FL2Data[valueT2][valueE21];
912  xs22 = FL2Data[valueT2][valueE22];
913 
914  if (verboseLevel>0)
915  G4cout
916  << valueT1 << " "
917  << valueT2 << " "
918  << valueE11 << " "
919  << valueE12 << " "
920  << valueE21 << " "
921  << valueE22 << " "
922  << xs11 << " "
923  << xs12 << " "
924  << xs21 << " "
925  << xs22 << " "
926  << G4endl;
927 
928  G4double xsProduct = xs11 * xs12 * xs21 * xs22;
929 
930  if (xs11==0 || xs12==0 ||xs21==0 ||xs22==0) return (0.);
931 
932  if (xsProduct != 0.)
933  {
934  sigma = QuadInterpolator( valueE11, valueE12,
935  valueE21, valueE22,
936  xs11, xs12,
937  xs21, xs22,
938  valueT1, valueT2,
939  k, theta );
940  }
941 
942  return sigma;
943 }
944 
945 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
946 
947 G4double G4ecpssrBaseLixsModel::LinLinInterpolate(G4double e1,
948  G4double e2,
949  G4double e,
950  G4double xs1,
951  G4double xs2)
952 {
953  G4double value = xs1 + (xs2 - xs1)*(e - e1)/ (e2 - e1);
954  return value;
955 }
956 
957 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
958 
959 G4double G4ecpssrBaseLixsModel::LinLogInterpolate(G4double e1,
960  G4double e2,
961  G4double e,
962  G4double xs1,
963  G4double xs2)
964 {
965  G4double d1 = std::log(xs1);
966  G4double d2 = std::log(xs2);
967  G4double value = G4Exp(d1 + (d2 - d1)*(e - e1)/ (e2 - e1));
968  return value;
969 }
970 
971 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
972 
973 G4double G4ecpssrBaseLixsModel::LogLogInterpolate(G4double e1,
974  G4double e2,
975  G4double e,
976  G4double xs1,
977  G4double xs2)
978 {
979  G4double a = (std::log10(xs2)-std::log10(xs1)) / (std::log10(e2)-std::log10(e1));
980  G4double b = std::log10(xs2) - a*std::log10(e2);
981  G4double sigma = a*std::log10(e) + b;
982  G4double value = (std::pow(10.,sigma));
983  return value;
984 }
985 
986 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
987 
988 G4double G4ecpssrBaseLixsModel::QuadInterpolator(G4double e11, G4double e12,
989  G4double e21, G4double e22,
990  G4double xs11, G4double xs12,
991  G4double xs21, G4double xs22,
992  G4double t1, G4double t2,
993  G4double t, G4double e)
994 {
995 // Log-Log
996  G4double interpolatedvalue1 = LogLogInterpolate(e11, e12, e, xs11, xs12);
997  G4double interpolatedvalue2 = LogLogInterpolate(e21, e22, e, xs21, xs22);
998  G4double value = LogLogInterpolate(t1, t2, t, interpolatedvalue1, interpolatedvalue2);
999 
1000 /*
1001 // Lin-Log
1002  G4double interpolatedvalue1 = LinLogInterpolate(e11, e12, e, xs11, xs12);
1003  G4double interpolatedvalue2 = LinLogInterpolate(e21, e22, e, xs21, xs22);
1004  G4double value = LinLogInterpolate(t1, t2, t, interpolatedvalue1, interpolatedvalue2);
1005 */
1006 
1007 /*
1008 // Lin-Lin
1009  G4double interpolatedvalue1 = LinLinInterpolate(e11, e12, e, xs11, xs12);
1010  G4double interpolatedvalue2 = LinLinInterpolate(e21, e22, e, xs21, xs22);
1011  G4double value = LinLinInterpolate(t1, t2, t, interpolatedvalue1, interpolatedvalue2);
1012 */
1013  return value;
1014 
1015 }
G4Exp.hh
G4LinLogInterpolation.hh
G4ecpssrBaseLixsModel::ExpIntFunction
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eps
static const G4double eps
Definition: G4ElectroNuclearCrossSection.cc:99
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G4AtomicShell::BindingEnergy
G4double BindingEnergy() const
Definition: G4AtomicShell.hh:80
G4int
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Definition: G4Types.hh:78
G4ecpssrBaseLixsModel::CalculateVelocity
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Definition: G4ecpssrBaseLixsModel.cc:727
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static G4NistManager * Instance()
Definition: G4NistManager.cc:68
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Definition: test.py:12
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Definition: G4ecpssrBaseLixsModel.cc:394
G4ecpssrBaseLixsModel::CalculateL1CrossSection
G4double CalculateL1CrossSection(G4int zTarget, G4double massIncident, G4double energyIncident)
Definition: G4ecpssrBaseLixsModel.cc:191
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G4GLOB_DLL std::ostream G4cout
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Definition: expat.h:331
G4ecpssrBaseLixsModel::CalculateL3CrossSection
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Definition: G4ecpssrBaseLixsModel.cc:557
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Definition: G4SIunits.hh:199
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Definition: G4Proton.cc:93
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Definition: hepunit.py:274
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Definition: G4UrQMD1_3Interface.hh:144
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Definition: G4ElectroNuclearCrossSection.cc:88
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Definition: G4Exception.cc:41
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Definition: G4ParticleDefinition.hh:122
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Definition: G4SIunits.hh:75
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Definition: G4Types.hh:76
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Definition: G4AtomicTransitionManager.cc:45
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