Gabriele Cosmo
110 lines
4.6 KiB
C++
110 lines
4.6 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * *
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// * Parts of this code which have been developed by QinetiQ Ltd *
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// * under contract to the European Space Agency (ESA) are the *
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// * intellectual property of ESA. Rights to use, copy, modify and *
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// * redistribute this software for general public use are granted *
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// * in compliance with any licensing, distribution and development *
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// * policy adopted by the Geant4 Collaboration. This code has been *
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// * written by QinetiQ Ltd for the European Space Agency, under ESA *
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// * contract 17191/03/NL/LvH (Aurora Programme). *
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// * *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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//
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// MODULE: G4WilsonRadius.cc
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//
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// Version: B.1
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// Date: 15/04/04
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// Author: P R Truscott
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// Organisation: QinetiQ Ltd, UK
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// Customer: ESA/ESTEC, NOORDWIJK
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// Contract: 17191/03/NL/LvH
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//
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// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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//
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// CHANGE HISTORY
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// --------------
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//
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// 6 October 2003, P R Truscott, QinetiQ Ltd, UK
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// Created.
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//
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// 15 March 2004, P R Truscott, QinetiQ Ltd, UK
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// Beta release
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//
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// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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//
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////////////////////////////////////////////////////////////////////////////////
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//
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#include "G4WilsonRadius.hh"
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#include "G4SystemOfUnits.hh"
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#include "G4Pow.hh"
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////////////////////////////////////////////////////////////////////////////////
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//
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G4WilsonRadius::G4WilsonRadius ()
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{
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G4double r0 = 0.84*fermi;
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r0sq = r0 * r0;
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factor = std::sqrt(5.0/3.0) * fermi;
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third = 1.0 / 3.0;
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}
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////////////////////////////////////////////////////////////////////////////////
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//
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G4WilsonRadius::~G4WilsonRadius ()
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{;}
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////////////////////////////////////////////////////////////////////////////////
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//
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G4double G4WilsonRadius::GetWilsonRMSRadius (G4double A)
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{
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G4double radius;
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if (A > 26.0)
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radius = factor * (0.84*G4Pow::GetInstance()->A13(A) + 0.55);
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else
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{
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// this was changed from just G4double to static const G4double
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// to make sure that time wasn't being wasted on every call reloading a stack variable
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// by MHM 20050119
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static const G4double r[27] = {0.0, 0.85, 2.095, 1.976, 1.671, 1.986,
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2.57, 2.41, 2.23, 2.519, 2.45,
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2.42, 2.471, 2.440, 2.58, 2.611,
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2.730, 2.662, 2.727, 2.9, 3.040,
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2.867, 2.969, 2.94, 3.075, 3.11,
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3.06};
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radius = factor * r[(G4int) (A+0.4)];
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}
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return radius;
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}
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////////////////////////////////////////////////////////////////////////////////
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//
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G4double G4WilsonRadius::GetWilsonRadius (G4double A)
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{
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G4double r = GetWilsonRMSRadius(A);
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return 1.29*std::sqrt(r*r-r0sq);
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}
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////////////////////////////////////////////////////////////////////////////////
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//
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