G4MuMultipleScattering.cc

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// $Id: G4MuMultipleScattering.cc 108424 2018-02-13 11:19:25Z gcosmo $
//
// -----------------------------------------------------------------------------
//
// GEANT4 Class file
//
// File name:     G4MuMultipleScattering
//
// Author:        Laszlo Urban
//
// Creation date: 24.10.2006 cloned from G4MultipleScattering
// 
// Modified:
// 12-02-07 skin can be changed via UI command (VI)
// 20.03.07 Remove local parameter skin, set facgeom=0.1(V.Ivanchenko) 
//
// -----------------------------------------------------------------------------
//
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#include "G4MuMultipleScattering.hh"
#include "G4SystemOfUnits.hh"
#include "G4WentzelVIModel.hh"
#include "G4UrbanMscModel.hh"
#include "G4MscStepLimitType.hh"

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using namespace std;

G4MuMultipleScattering::G4MuMultipleScattering(const G4String& pnam)
  : G4VMultipleScattering(pnam)
{
  isInitialized = false;  
}

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G4bool G4MuMultipleScattering::IsApplicable (const G4ParticleDefinition& p)
{
  return (p.GetPDGCharge() != 0.0 && !p.IsShortLived());
}

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void G4MuMultipleScattering::InitialiseProcess(const G4ParticleDefinition*)
{
  // Modification of parameters between runs
  if(isInitialized) { return; }
  if(!EmModel(0)) { SetEmModel(new G4UrbanMscModel()); }
  AddEmModel(1, EmModel(0));
  isInitialized = true;
}

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void G4MuMultipleScattering::StreamProcessInfo(std::ostream& out,
                                               G4String endOfLine) const
{
  out << "      RangeFactor= " << RangeFactor()
      << ", step limit type: " << StepLimitType()
      << ", lateralDisplacement: " << LateralDisplasmentFlag()
      << ", polarAngleLimit(deg)= " << PolarAngleLimit()/degree
      << endOfLine;
}

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void G4MuMultipleScattering::ProcessDescription(std::ostream& out) const
{
  out << "<strong>"
  "Muon multiple scattering</strong>. Simulates combined effects of <br>"
  "elastic scattering at the end of the step, to save computing time. May<br>"
  "be combined with Coulomb scattering in a 'mixed' scattering algorithm.";
  G4VMultipleScattering::ProcessDescription(out);
}

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