| 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 | // -------------------------------------------------------------------
|
|---|
| 28 | //
|
|---|
| 29 | // GEANT4 Class file
|
|---|
| 30 | //
|
|---|
| 31 | //
|
|---|
| 32 | // File name: G4VhShellCrossSection
|
|---|
| 33 | //
|
|---|
| 34 | // Author: V.Ivanchenko (Vladimir.Ivanchenko@cern.ch)
|
|---|
| 35 | //
|
|---|
| 36 | // History:
|
|---|
| 37 | // -----------
|
|---|
| 38 | // 20 Oct 2001 V.Ivanchenko 1st implementation
|
|---|
| 39 | // 24 Oct 2001 MGP Minor clean-up
|
|---|
| 40 | // 29 Oct 2001 VI Add delta energy
|
|---|
| 41 | //
|
|---|
| 42 | // -------------------------------------------------------------------
|
|---|
| 43 |
|
|---|
| 44 | #include "G4VhShellCrossSection.hh"
|
|---|
| 45 | #include "Randomize.hh"
|
|---|
| 46 |
|
|---|
| 47 | G4VhShellCrossSection::G4VhShellCrossSection()
|
|---|
| 48 | { }
|
|---|
| 49 |
|
|---|
| 50 |
|
|---|
| 51 | G4VhShellCrossSection::~G4VhShellCrossSection()
|
|---|
| 52 | { }
|
|---|
| 53 |
|
|---|
| 54 | void G4VhShellCrossSection :: SetTotalCS(G4double)
|
|---|
| 55 | {
|
|---|
| 56 | }
|
|---|
| 57 |
|
|---|
| 58 |
|
|---|
| 59 | G4int G4VhShellCrossSection::SelectRandomShell(G4int Z,
|
|---|
| 60 | G4double incidentEnergy,
|
|---|
| 61 | G4double mass,
|
|---|
| 62 | G4double deltaEnergy) const
|
|---|
| 63 | {
|
|---|
| 64 | std::vector<G4double> p = Probabilities(Z,incidentEnergy,mass,deltaEnergy);
|
|---|
| 65 | G4int shell = 0;
|
|---|
| 66 | size_t nShells = p.size();
|
|---|
| 67 | G4double q = G4UniformRand();
|
|---|
| 68 | for (size_t i=0; i<nShells; i++) {
|
|---|
| 69 |
|
|---|
| 70 | if (p[i] >= q) {
|
|---|
| 71 | shell = i;
|
|---|
| 72 | break;
|
|---|
| 73 | }
|
|---|
| 74 | q -= p[i];
|
|---|
| 75 | }
|
|---|
| 76 | return shell;
|
|---|
| 77 | }
|
|---|
| 78 |
|
|---|
| 79 |
|
|---|
