HadrontherapyInteractionParameters.cc

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// Hadrontherapy advanced example for Geant4
// See more at: https://twiki.cern.ch/twiki/bin/view/Geant4/AdvancedExamplesHadrontherapy

#include <fstream>
#include <iostream>
#include <sstream>
#include <cmath>
#include <vector>

#include "HadrontherapyInteractionParameters.hh"
#include "HadrontherapyParameterMessenger.hh"
#include "HadrontherapyDetectorConstruction.hh"

#include "globals.hh"
#include "G4SystemOfUnits.hh"
#include "G4UnitsTable.hh"
#include "G4UImanager.hh"
#include "G4RunManager.hh"
#include "G4LossTableManager.hh"
#include "G4Material.hh"
#include "G4MaterialCutsCouple.hh"
#include "G4ParticleDefinition.hh"
#include "G4ParticleTable.hh"
#include "G4NistManager.hh"
#include "G4Element.hh"
#include "G4StateManager.hh"

HadrontherapyInteractionParameters::HadrontherapyInteractionParameters(G4bool wantMessenger): 
    nistEle(new G4NistElementBuilder(0)),                     
    nistMat(new G4NistMaterialBuilder(nistEle, 0)),                   
    data(G4cout.rdbuf()), 
    pMessenger(0),
    beamFlag(false)

{
    if (wantMessenger) pMessenger = new HadrontherapyParameterMessenger(this); 
}

HadrontherapyInteractionParameters::~HadrontherapyInteractionParameters()
{
    if (pMessenger) delete pMessenger; 
    delete nistMat; 
    delete nistEle; 
}

G4double HadrontherapyInteractionParameters::GetStopping (G4double ene, 
                                                    const G4ParticleDefinition* pDef, 
                      const G4Material* pMat,
                G4double dens)
{
    if (dens) return ComputeTotalDEDX(ene, pDef, pMat)/dens;
    return ComputeTotalDEDX(ene, pDef, pMat);
}
bool HadrontherapyInteractionParameters::GetStoppingTable(const G4String& vararg)
{
  // Check arguments
  if ( !ParseArg(vararg)) return false;
  // Clear previous energy & mass sp vectors
        energy.clear(); 
        massDedx.clear();
  // log scale 
  if (kinEmin != kinEmax && npoints >1)
  {
      G4double logmin = std::log10(kinEmin);
      G4double logmax = std::log10(kinEmax); 
      G4double en;
      // uniform log space
            for (G4double c = 0.; c < npoints; c++)
         {
        en = std::pow(10., logmin + ( c*(logmax-logmin)  / (npoints - 1.)) );  
        energy.push_back(en/MeV);
        dedxtot =  ComputeTotalDEDX (en, particle, material);
              massDedx.push_back ( (dedxtot / density)/(MeV*cm2/g) );
         }
  }
  else // one point only
  {
      energy.push_back(kinEmin/MeV);
      dedxtot =  ComputeTotalDEDX (kinEmin, particle, material);
      massDedx.push_back ( (dedxtot / density)/(MeV*cm2/g) );
  }

    G4cout.precision(6);  
    data <<  "MeV             " << "MeV*cm2/g      " << particle << " (into " << 
      material << ", density = " << G4BestUnit(density,"Volumic Mass") << ")" << G4endl;
    data << G4endl;
    data << std::left << std::setfill(' ');
    for (size_t i=0; i<energy.size(); i++){
    data << std::setw(16) << energy[i] << massDedx[i] << G4endl;
  }
    outfile.close();
    // This will plot

// Info to user
    G4String ofName = (filename == "") ? "User terminal": filename;
    G4cout << "User choice:\n";
    G4cout << "Kinetic energy lower limit= "<< G4BestUnit(kinEmin,"Energy") << 
        ", Kinetic energy upper limit= " << G4BestUnit(kinEmax,"Energy") << 
           ", npoints= "<< npoints << ", particle= \"" << particle << 
     "\", material= \"" << material << "\", filename= \""<< 
     ofName << "\"" << G4endl;
    return true;
}
// Search for user material choice inside G4NistManager database
G4Material* HadrontherapyInteractionParameters::GetNistMaterial(G4String mat)
{
    Pmaterial = G4NistManager::Instance()->FindOrBuildMaterial(mat);
    if (Pmaterial) density = Pmaterial -> GetDensity(); 
    return Pmaterial;
}
// Parse arguments line
bool HadrontherapyInteractionParameters::ParseArg(const G4String& vararg)
{
  kinEmin = kinEmax = npoints = 0.;
  particle = material = filename = "";
  // set internal variables
  std::istringstream strParam(vararg);
  // TODO here check for number and parameters consistency 
  strParam >> std::skipws >> material >> kinEmin >> kinEmax >> npoints >> particle >> filename;
  // npoints must be an integer!
  npoints = std::floor(npoints); 

// Check that  kinEmax >= kinEmin > 0 &&  npoints >= 1 
// TODO NIST points and linear scale
   if (kinEmax == 0. && kinEmin > 0. ) kinEmax = kinEmin;
   if (kinEmax == 0. && kinEmin == 0. ) kinEmax = kinEmin = 1.*MeV;
   if (kinEmax < kinEmin) 
   {
     G4cout << "WARNING: kinEmin must not exceed kinEmax!" << G4endl;
     G4cout << "Usage: /parameter/command  material EkinMin EKinMax nPoints [particle] [output filename]" << G4endl;  
     return false;
   }
  if (npoints < 1) npoints = 1;

    // check if element/material is into database
    if (!GetNistMaterial(material) )
     {
       G4cout << "WARNING: material \"" << material << "\" doesn't exist in NIST elements/materials"
           " table [$G4INSTALL/source/materials/src/G4NistMaterialBuilder.cc]" << G4endl; 
       G4cout << "Use command \"/parameter/nist\" to see full materials list" << G4endl; 
       return false;
     }
    // Check for particle
    if (particle == "") particle = "proton"; // default to "proton"
    else if ( !FindParticle(particle) )
     {
    G4cout << "WARNING: Particle \"" << particle << "\" isn't supported." << G4endl;
    G4cout << "Try the command \"/particle/list\" to get full supported particles list." << G4endl;
    G4cout << "If you are interested in an ion that isn't in this list you must give it to the particle gun."
              "\nTry the commands:\n/gun/particle ion"
        "\n/gun/ion <atomic number> <mass number> <[charge]>" << G4endl << G4endl;
    return false;
     }
    // start physics by forcing a G4RunManager::BeamOn(): 
    BeamOn();
    // Set output file
    if( filename != "" ) 
       {
          outfile.open(filename,std::ios_base::trunc); // overwrite existing file
          data.rdbuf(outfile.rdbuf());
       }
    else data.rdbuf(G4cout.rdbuf());  // output is G4cout!                
    return true;
}
// Force physics tables build
void HadrontherapyInteractionParameters::BeamOn()
{
    // first check if RunManager is above G4State_Idle 
    G4StateManager* mState = G4StateManager::GetStateManager();
    G4ApplicationState  aState = mState -> GetCurrentState(); 
    if ( aState <= G4State_Idle && beamFlag == false)
   {
      G4cout << "Issuing a G4RunManager::beamOn()... "; 
      G4cout << "Current Run State is " << mState -> GetStateString( aState ) << G4endl; 
      G4RunManager::GetRunManager() -> BeamOn(0);
      beamFlag = true;
   }

}
// print a list of Nist elements and materials
void HadrontherapyInteractionParameters::ListOfNistMaterials(const G4String& vararg)
{
/*
 $G4INSTALL/source/materials/src/G4NistElementBuilder.cc
 You can also construct a new material by the ConstructNewMaterial method:
 see $G4INSTALL/source/materials/src/G4NistMaterialBuilder.cc
*/
    // Get simplest full list
     if (vararg =="list")
    {
      const std::vector<G4String>& vec =  nistMat -> GetMaterialNames(); 
      for (size_t i=0; i<vec.size(); i++)
       {
          G4cout << std::setw(12) << std::left << i+1 << vec[i] << G4endl;
       }
      G4cout << G4endl;
          }
    else if (vararg =="all" || vararg =="simple" || vararg =="compound" || vararg =="hep" )
  {
    nistMat -> ListMaterials(vararg);
  }
}