G4String_inFile=(std::string)std::getenv("JZCaPA")+"/Utils/Alignment_2021.xml";// I added corresponding scan name in each run
dC->LoadAlignmentFile(_inFile.c_str());
m_alignment=dC->GetAlignment();
}
G4cout<<"This doesn't do anything yet"<<G4endl;
// // Define the position of the particle
// G4double x = yourRandomDistributionX; //x position
// G4double y = yourRandomDistributionY; //y position
// G4ThreeVector position(x,y,0); //Insert x and y into a vector. Beam will be at zero
// G4double time = 0*s; //Time is always zero for us
// //
// G4PrimaryVertex* vertex = new G4PrimaryVertex(position, time); //Insert the position and time into a primary vertex
//
//
// // A note for Hongbo:
// // I think for now we can use the particle type as defined by the .xml file
// // but for future work it might be good for us to simulate an impure beam.
// // What I've written below should work fine. You just need to worry about x and y above
//
// G4ParticleDefinition* particleDefinition
// = G4ParticleTable::GetParticleTable()->FindParticle(alignment.beam_type.c_str()); //get the particle definition for this beam
// G4PrimaryParticle* particle = new G4PrimaryParticle(particleDefinition); //create a particle with the given definition
// particle->SetMomentumDirection(G4ThreeVector(0,0,1)); //set the momentum to be purely in Z
// particle->SetKineticEnergy(alignment.beam_energy); //get the beam energy from the alignment file
// vertex->SetPrimary(particle); //add the particle to the vertex created above
//
// event->AddPrimaryVertex(vertex); //add the vertex to this event for geant to simulate
// Define the position of the particle
G4String_profile=(std::string)std::getenv("JZCaPA")+"/Utils/2021testbeam_scan/"+m_alignment.beam_scan+".txt";//Select the corresponding scan file according to run number
if(m_alignment.beam_scan==""){
G4cout<<" ==== This Run does not belong to any processed Scan ==== "<<G4endl;// You can check ("JZCaPA")/Utils/2021testbeam_scan/README.md
}
constintWireChamberSize=101;
G4doubleprobListX[WireChamberSize],
probListY[WireChamberSize];
// Put the X and Y beam profile into two arrays
std::ifstream_scanfile(_profile);
for(intj=0;j<2;++j){
for(inti=0;i<WireChamberSize;++i){
if(!j){
_scanfile>>probListX[i];
}
_scanfile>>probListY[i];
}
}
_scanfile.close();
G4RandGeneralRandX(probListX,WireChamberSize);//Generate the random number, range (0, 1)
G4cout<<"Beam scan & type & energy ==> ("<<m_alignment.beam_scan<<m_alignment.beam_type<<", "<<m_alignment.beam_energy<<")"<<G4endl;
G4cout<<"Particle Position ==> ("<<position.x()<<", "<<position.y()<<", "<<position.z()<<")"<<G4endl;
G4ParticleDefinition*particleDefinition
=G4ParticleTable::GetParticleTable()->FindParticle(m_alignment.beam_type.c_str());// about the definition of the ParticleTable, I changed the Alignment_2021.xml file, "e" to "e-", "p" to "proton"
