| 1 | //
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| 2 | // ********************************************************************
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| 3 | // * License and Disclaimer *
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| 4 | // * *
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of *
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and *
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| 7 | // * conditions of the Geant4 Software License, included in the file *
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These *
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| 9 | // * include a list of copyright holders. *
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| 10 | // * *
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| 11 | // * Neither the authors of this software system, nor their employing *
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| 12 | // * institutes,nor the agencies providing financial support for this *
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| 13 | // * work make any representation or warranty, express or implied, *
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| 14 | // * regarding this software system or assume any liability for its *
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| 15 | // * use. Please see the license in the file LICENSE and URL above *
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| 16 | // * for the full disclaimer and the limitation of liability. *
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| 17 | // * *
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| 18 | // * This code implementation is the result of the scientific and *
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| 19 | // * technical work of the GEANT4 collaboration. *
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| 20 | // * *
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| 21 | // * Parts of this code which have been developed by QinetiQ Ltd *
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| 22 | // * under contract to the European Space Agency (ESA) are the *
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| 23 | // * intellectual property of ESA. Rights to use, copy, modify and *
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| 24 | // * redistribute this software for general public use are granted *
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| 25 | // * in compliance with any licensing, distribution and development *
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| 26 | // * policy adopted by the Geant4 Collaboration. This code has been *
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| 27 | // * written by QinetiQ Ltd for the European Space Agency, under ESA *
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| 28 | // * contract 17191/03/NL/LvH (Aurora Programme). *
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| 29 | // * *
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| 30 | // * By using, copying, modifying or distributing the software (or *
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| 31 | // * any work based on the software) you agree to acknowledge its *
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| 32 | // * use in resulting scientific publications, and indicate your *
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| 33 | // * acceptance of all terms of the Geant4 Software license. *
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| 34 | // ********************************************************************
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| 35 | //
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| 36 | // %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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| 37 | //
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| 38 | // MODULE: G4WilsonRadius.cc
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| 39 | //
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| 40 | // Version: B.1
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| 41 | // Date: 15/04/04
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| 42 | // Author: P R Truscott
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| 43 | // Organisation: QinetiQ Ltd, UK
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| 44 | // Customer: ESA/ESTEC, NOORDWIJK
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| 45 | // Contract: 17191/03/NL/LvH
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| 46 | //
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| 47 | // %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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| 48 | //
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| 49 | // CHANGE HISTORY
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| 50 | // --------------
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| 51 | //
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| 52 | // 6 October 2003, P R Truscott, QinetiQ Ltd, UK
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| 53 | // Created.
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| 54 | //
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| 55 | // 15 March 2004, P R Truscott, QinetiQ Ltd, UK
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| 56 | // Beta release
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| 57 | //
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| 58 | // %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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| 59 | //
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| 60 | ////////////////////////////////////////////////////////////////////////////////
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| 61 | //
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| 62 | #include "G4WilsonRadius.hh"
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| 63 |
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| 64 | ////////////////////////////////////////////////////////////////////////////////
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| 65 | //
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| 66 | G4WilsonRadius::G4WilsonRadius ()
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| 67 | {
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| 68 | G4double r0 = 0.84*fermi;
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| 69 | r0sq = r0 * r0;
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| 70 | factor = std::sqrt(5.0/3.0) * fermi;
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| 71 | third = 1.0 / 3.0;
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| 72 | }
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| 73 | ////////////////////////////////////////////////////////////////////////////////
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| 74 | //
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| 75 | G4WilsonRadius::~G4WilsonRadius ()
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| 76 | {;}
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| 77 | ////////////////////////////////////////////////////////////////////////////////
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| 78 | //
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| 79 | G4double G4WilsonRadius::GetWilsonRMSRadius (G4double A)
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| 80 | {
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| 81 | G4double radius;
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| 82 | if (A > 26.0)
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| 83 | radius = factor * (0.84*std::pow(A,third) + 0.55);
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| 84 | else
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| 85 | {
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| 86 | G4double r[27] = {0.0, 0.85, 2.095, 1.976, 1.671, 1.986,
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| 87 | 2.57, 2.41, 2.23, 2.519, 2.45,
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| 88 | 2.42, 2.471, 2.440, 2.58, 2.611,
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| 89 | 2.730, 2.662, 2.727, 2.9, 3.040,
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| 90 | 2.867, 2.969, 2.94, 3.075, 3.11,
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| 91 | 3.06};
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| 92 | radius = factor * r[(G4int) (A+0.4)];
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| 93 | }
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| 94 | return radius;
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| 95 | }
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| 96 | ////////////////////////////////////////////////////////////////////////////////
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| 97 | //
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| 98 | G4double G4WilsonRadius::GetWilsonRadius (G4double A)
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| 99 | {
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| 100 | G4double r = GetWilsonRMSRadius(A);
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| 101 | return 1.29*std::sqrt(r*r-r0sq);
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| 102 | }
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| 103 | ////////////////////////////////////////////////////////////////////////////////
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| 104 | //
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