Gabriele Cosmo
72 lines
3.2 KiB
C++
Executable File
72 lines
3.2 KiB
C++
Executable File
//
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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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// * 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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#include "G4IRTUtils.hh"
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#include "globals.hh"
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#include "G4SystemOfUnits.hh"
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#include "G4ErrorFunction.hh"
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G4double G4IRTUtils::EffectiveDistance(const G4double& rc,
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const G4double& r0)
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{
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return r0 == 0 ? 0 : - rc / (1 - std::exp( rc / r0 ) );
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}
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G4double G4IRTUtils::GetRCutOff()
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{
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G4double tCutOff = 1000 * ns;
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G4double probabilityOfReaction = 0.01;
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G4double maximumReactionRadius = 1.45*CLHEP::nm;//??
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G4double maximumRelativeDiffusionCoefficient = 2.0*9.46e9 *CLHEP::nm*CLHEP::nm/CLHEP::s;//??
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G4double erfcInv = G4ErrorFunction::erfcInv(probabilityOfReaction);
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return maximumReactionRadius + 2.0 *
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std::sqrt(maximumRelativeDiffusionCoefficient * tCutOff) * erfcInv;
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}
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G4double G4IRTUtils::GetRCutOff(G4double tCutOff)
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{
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G4double probabilityOfReaction = 0.01;
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G4double maximumReactionRadius = 1.45*CLHEP::nm;//??
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G4double maximumRelativeDiffusionCoefficient = 2.0*9.46e9 *CLHEP::nm*CLHEP::nm/CLHEP::s;//??
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G4double erfcInv = G4ErrorFunction::erfcInv(probabilityOfReaction);
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return maximumReactionRadius + 2.0 *
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std::sqrt(maximumRelativeDiffusionCoefficient * tCutOff) * erfcInv;
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}
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G4double G4IRTUtils::GetDNADistanceCutOff()
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{
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G4double tCutOff = 100 * ps;
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G4double probabilityOfReaction = 0.01;
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G4double maximumReactionRadius = 1.45*CLHEP::nm;//??
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G4double maximumRelativeDiffusionCoefficient = 2.0*9.46e9 *CLHEP::nm*CLHEP::nm/CLHEP::s;//??
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G4double erfcInv = G4ErrorFunction::erfcInv(probabilityOfReaction);
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return maximumReactionRadius + 2.0 *
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std::sqrt(maximumRelativeDiffusionCoefficient * tCutOff) * erfcInv;
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} |