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MiniScatter.cc
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MiniScatter.cc
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/* MiniScatter.cc:
* Helga Holmestad 2015-2019
* Kyrre Sjobak 2015-
* Eric Fackelman 2022-
*
* This file is part of MiniScatter.
*
* MiniScatter is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* MiniScatter is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with MiniScatter. If not, see <https://www.gnu.org/licenses/>.
*/
#include "G4RunManager.hh"
#include "G4UImanager.hh"
#include "DetectorConstruction.hh"
#include "MagnetSensorWorldConstruction.hh"
#include "VirtualTrackerWorldConstruction.hh"
#include "PrimaryGeneratorAction.hh"
#include "RunAction.hh"
#include "EventAction.hh"
#include "G4PhysListFactory.hh"
#include "G4ParallelWorldPhysics.hh"
#include "EMonlyPhysicsList.hh"
#include "G4Version.hh"
#include "G4Exception.hh"
#if G4VERSION_NUMBER >= 1060
//These macros were removed in version 10.6;
// from what I can see it looks like they are are no longer needed
#define G4VIS_USE
#define G4UI_USE
#endif
#include "MiniScatterVersion.hh"
#include "RootFileWriter.hh"
#include "G4SystemOfUnits.hh"
#include "G4String.hh"
#include <string> //C++11 std::stoi
#include "TROOT.h"
#ifdef G4VIS_USE
#include "G4VisExecutive.hh"
#endif
#ifdef G4UI_USE
#include "G4UIExecutive.hh"
#endif
//#include <unistd.h> //getopt()
#include <getopt.h> // Long options to getopt (GNU extension)
void printHelp(G4double target_thick,
G4String target_material,
G4String background_material,
std::vector<G4double>* detector_distances,
G4double detector_angle,
G4double target_angle,
G4double world_size,
G4String physListName,
G4double physCutoffDist,
G4int numEvents,
G4double beam_energy,
G4double beam_eFlat_min,
G4double beam_eFlat_max,
G4String beam_type,
G4double beam_offset,
G4double beam_zpos,
G4double beam_angle,
G4String covarianceString,
G4double beam_rCut,
G4bool doBacktrack,
G4String beam_loadfile,
G4int rngSeed,
G4String filename_out,
G4String foldername_out,
G4bool quickmode,
G4bool anaScatterTest,
G4bool miniROOTfile,
G4double cutoff_energyFraction,
G4double cutoff_radius,
G4double edep_dens_dz,
G4int engNbins,
G4double histPosLim,
G4double histAngLim,
std::vector<G4String> &magnetDefinitions);
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
int main(int argc,char** argv) {
// Avoid problem (segfault)
// "Error in <UnknownClass::InitInterpreter()>: LLVM SYMBOLS ARE EXPOSED TO CLING! This will cause problems; please hide them or dlopen() them after the call to TROOT::InitInterpreter()!"
// when running with GUI.
gROOT->Reset();
G4cout << "**********************************************************" << G4endl
<< "**********************************************************" << G4endl
<< G4endl;
G4cout << " Welcome to MiniScatter, release version " << miniscatter_version << "!" << G4endl
<< " Release dated: " << miniscatter_date << G4endl
<< G4endl;
G4cout << " MiniScatter is controlled with command line arguments." << G4endl
<< " Run MiniScatter --help to see all possible arguments,"
<< " a description of each of them, and their default/current values." << G4endl
<< G4endl;
G4cout << " If publishing results obtained with this code, " << G4endl
<< " please cite K.Sjobak and H.Holmestad, 'MINISCATTER, A SIMPLE GEANT4 WRAPPER'," << G4endl
<< " https://dx.doi.org/10.18429/JACoW-IPAC2019-WEPTS025" << G4endl
<< G4endl;
G4cout << "**********************************************************" << G4endl
<< "**********************************************************" << G4endl
<< G4endl;
//Parse command line arguments
int getopt_char;
int getopt_idx;
G4double target_thick = 1.0; // Target thickness [mm]; 0.0 for no target slab (only magnets)
G4String target_material = "G4_Al"; // Name of target material to use
G4double target_angle = 0.0; // Target angle around y-axis [deg]
G4String background_material = "G4_Galactic"; // Background material
std::vector<G4double> detector_distances; // Detector distances at x=y=0 [mm]
detector_distances.push_back(50.0);
G4double detector_angle = 0.0; // Detectector angle around y-axis [deg]
G4double world_size = 500.0; // World full size X/Y [mm]
// (not half-size as taken as argument by G4Box etc.)
G4double beam_energy = 200; // Beam kinetic energy [MeV]
G4double beam_eFlat_min = -1.0; // For flat-spectrum energy distribution,
G4double beam_eFlat_max = -1.0; // set these to min/max, both > 0.0.
G4String beam_type = "e-"; // Beam particle type
G4double beam_offset = 0.0; // Beam offset (x) [mm]
G4double beam_zpos = 0.0; // Beam offset (z) [mm]
G4bool doBacktrack = false; // Backtrack to the z-position?
G4double beam_angle = 0.0; // Beam angle [deg]
G4String covarianceString = ""; // Beam covariance matrix parameters
G4double beam_rCut = 0.0; // Beam distribution radial cutoff
G4String beam_loadFile = ""; // Filename to load beam distribution from
G4String physListName = "QGSP_FTFP_BERT"; // Name of physics list to use
G4double physCutoffDist = 0.1; // Default physics cutoff distance [mm]
G4int numEvents = 0; // Number of events to generate
G4bool useGUI = false; // GUI on/off
G4bool quickmode = false; // Don't make slow plots
G4bool anaScatterTest = false; // Compute analytical multiple scattering,
// for comparison with simulation output.
G4String filename_out = "output"; // Output filename
G4String foldername_out = "plots"; // Output foldername
G4bool miniROOTfile = false; // Write small root file
// (only analysis output, no TTrees)
G4int rngSeed = 0; // RNG seed
G4double cutoff_energyFraction = 0.95; // [fraction]
G4double cutoff_radius = world_size; // [mm]
G4double edep_dens_dz = 0.0; // Z bin width for energy deposit histograms [mm]
G4int engNbins = 0; // Number of bins for the 1D energy histograms
G4double histPosLim = 10.0; // Position histogram Limit, default 10
G4double histAngLim = 5.0; // Angle histogram Limit, default 5
std::vector<G4String> magnetDefinitions;
static struct option long_options[] = {
{"thick", required_argument, NULL, 't' },
{"mat", required_argument, NULL, 'm' },
{"backgroundMaterial", required_argument, NULL, 1600 },
{"dist", required_argument, NULL, 'd' },
{"ang", required_argument, NULL, 'a' },
{"targetAngle", required_argument, NULL, 'A' },
{"worldsize", required_argument, NULL, 'w' },
{"ang", required_argument, NULL, 'a' },
{"phys", required_argument, NULL, 'p' },
{"physCutoffDist", required_argument, NULL, 1400 },
{"numEvents", required_argument, NULL, 'n' },
{"energy", required_argument, NULL, 'e' },
{"energyDistFlat", required_argument, NULL, 1300 },
{"beam", required_argument, NULL, 'b' },
{"xoffset", required_argument, NULL, 'x' },
{"zoffset", required_argument, NULL, 'z' },
{"beamAngle", required_argument, NULL, 1500 },
{"covar", required_argument, NULL, 'c' },
{"beamRcut", required_argument, NULL, 1200 },
{"beamFile", required_argument, NULL, 1700 },
{"outname", required_argument, NULL, 'f' },
{"outfolder", required_argument, NULL, 'o' },
{"seed", required_argument, NULL, 's' },
{"help", no_argument, NULL, 'h' },
{"gui", no_argument, NULL, 'g' },
{"quickmode", no_argument, NULL, 'q' },
{"anaScatterTest", no_argument, NULL, 1004 },
{"miniroot", no_argument, NULL, 'r' },
{"cutoffEnergyFraction", required_argument, NULL, 1000 },
{"cutoffRadius", required_argument, NULL, 1001 },
{"edepDZ", required_argument, NULL, 1002 },
{"engNbins", required_argument, NULL, 1003 },
{"histPosLim", required_argument, NULL, 1005 },
{"histAngLim", required_argument, NULL, 1006 },
{"magnet", required_argument, NULL, 1100 },
{"object", required_argument, NULL, 1100 }, //synonymous with --magnet
{0,0,0,0}
};
while ( (getopt_char = getopt_long(argc,argv, "t:m:d:a:A:w:p:n:e:b:x:z:c:f:o:s:hgqr", long_options, &getopt_idx)) != -1) {
switch(getopt_char) {
case 'h': //--help ; Print help
printHelp(target_thick,
target_material,
background_material,
&detector_distances,
detector_angle,
target_angle,
world_size,
physListName,
physCutoffDist,
numEvents,
beam_energy,
beam_eFlat_min,
beam_eFlat_max,
beam_type,
beam_offset,
beam_zpos,
beam_angle,
covarianceString,
beam_rCut,
doBacktrack,
beam_loadFile,
rngSeed,
filename_out,
foldername_out,
quickmode,
anaScatterTest,
miniROOTfile,
cutoff_energyFraction,
cutoff_radius,
edep_dens_dz,
engNbins,
histPosLim,
histAngLim,
magnetDefinitions);
exit(1);
break;
case 'g': //--gui ; Use the GUI
useGUI = true;
break;
case 't': //--thick ; Target thickness
try {
target_thick = std::stod(string(optarg));
}
catch (const std::invalid_argument& ia) {
G4cout << "Invalid argument when reading target thickness" << G4endl
<< "Got: '" << optarg << "'" << G4endl
<< "Expected a floating point number! (exponential notation is accepted)" << G4endl;
exit(1);
}
break;
case 'd': //--dist ; Detector distance(s)
{ //Scope to avoid spilling temp variables
detector_distances.clear();
std::string detectorString = std::string(optarg);
if (detectorString == "NONE") break; //Just clear it
//Split by :
size_t startPos = 0;
size_t endPos = 0;
do {
endPos = detectorString.find(":",startPos);
std::string detStr = detectorString.substr(startPos,endPos-startPos);
G4double dist;
try {
dist = std::stod(detStr);
}
catch (const std::invalid_argument& ia) {
G4cout << "Invalid argument when reading detector distance" << G4endl
<< "Got: '" << detStr << "'" << G4endl
<< "Expected a floating point number! (exponential notation is accepted)" << G4endl;
exit(1);
}
detector_distances.push_back(dist);
startPos = endPos+1;
} while (endPos != std::string::npos);
}
break;
case 'a': //--angle ; Detector angle
try {
detector_angle = std::stod(string(optarg));
}
catch (const std::invalid_argument& ia) {
G4cout << "Invalid argument when reading detector angle" << G4endl
<< "Got: '" << optarg << "'" << G4endl
<< "Expected a floating point number! (exponential notation is accepted)" << G4endl;
exit(1);
}
break;
case 'A': //--targetAngle ; Target angle
try {
target_angle = std::stod(string(optarg));
}
catch (const std::invalid_argument& ia) {
G4cout << "Invalid argument when reading target angle" << G4endl
<< "Got: '" << optarg << "'" << G4endl
<< "Expected a floating point number! (exponential notation is accepted)" << G4endl;
exit(1);
}
break;
case 'w': //--worldsize ; World size
try {
world_size = std::stod(string(optarg));
}
catch (const std::invalid_argument& ia) {
G4cout << "Invalid argument when reading world size" << G4endl
<< "Got: '" << optarg << "'" << G4endl
<< "Expected a floating point number! (exponential notation is accepted)" << G4endl;
exit(1);
}
break;
case 'p': //--phys ; Named physics list
physListName = G4String(optarg);
break;
case 1400: //--physCutoffDist ; Physics cutoff distance (--physCutoffDist)
try {
physCutoffDist = std::stod(string(optarg));
}
catch (const std::invalid_argument& ia) {
G4cout << "Invalid argument when reading physCutoffDist" << G4endl
<< "Got: '" << optarg << "'" << G4endl
<< "Expected a floating point number! (exponential notation is accepted)" << G4endl;
exit(1);
}
break;
case 'm': //--mat ; Target material
target_material = G4String(optarg);
break;
case 1600: //--backgroundMaterial ; Background material
background_material = G4String(optarg);
break;
case 'n': //--numEvents ; Number of events
try {
numEvents = std::stoi(string(optarg));
}
catch (const std::invalid_argument& ia) {
G4cout << "Invalid argument when reading number of events" << G4endl
<< "Got: '" << optarg << "'" << G4endl
<< "Expected an integer!" << G4endl;
exit(1);
}
break;
case 'e': //--energy ; The (reference) beam kinetic energy
try {
beam_energy = std::stod(string(optarg));
}
catch (const std::invalid_argument& ia) {
G4cout << "Invalid argument when reading beam kinetic energy" << G4endl
<< "Got: '" << optarg << "'" << G4endl
<< "Expected a floating point number! (exponential notation is accepted)" << G4endl;
exit(1);
}
break;
case 1300: {//--energyDistFlat ; beam energy (flat distribution)
std::string edist_str = std::string(optarg);
size_t startPos = 0;
size_t endPos = edist_str.find(':',startPos);
if (endPos == std::string::npos) {
G4cout << " Error while searching for ':' in edist_str = '"
<< edist_str << "', did not find?" << G4endl;
exit(1);
}
try {
beam_eFlat_min = std::stod(string(edist_str.substr(0,endPos)));
}
catch (const std::invalid_argument& ia) {
G4cout << "Invalid argument when reading minimum energy '" << edist_str.substr(0,endPos) << "' for eFlat." << G4endl
<< "Got: '" << optarg << "'" << G4endl
<< "Expected a floating point number! (exponential notation is accepted)" << G4endl;
exit(1);
}
startPos = endPos+1;
endPos = edist_str.find(":",startPos);
if (endPos != std::string::npos) {
G4cout << " Error while searching for ':' in edist_str = "
<< edist_str << "', found a second one?" << G4endl;
exit(1);
}
try {
beam_eFlat_max = std::stod(string(edist_str.substr(startPos,endPos-startPos)));
}
catch (const std::invalid_argument& ia) {
G4cout << "Invalid argument when reading maximum energy '" << edist_str.substr(startPos,endPos-startPos) << "' for eFlat." << G4endl
<< "Got: '" << optarg << "'" << G4endl
<< "Expected a floating point number! (exponential notation is accepted)" << G4endl;
exit(1);
}
if (beam_eFlat_min < 0 or beam_eFlat_max <= 0 or beam_eFlat_min >= beam_eFlat_max) {
G4cout << "Invalid eFlat_min/_max" << G4endl;
exit(1);
}
}
break;
case 'b': //--beam ; Beam particle type
beam_type = G4String(optarg);
break;
case 'x': //--xoffset / Beam offset (x)
try {
beam_offset = std::stod(string(optarg));
}
catch (const std::invalid_argument& ia) {
G4cout << "Invalid argument when reading beam offset (x)" << G4endl
<< "Got: '" << optarg << "'" << G4endl
<< "Expected a floating point number! (exponential notation is accepted)" << G4endl;
exit(1);
}
break;
case 'z': //--zoffset ; Beam offset (z)
if (strlen(optarg) > 0 && optarg[0] == '*') {
doBacktrack = true;
}
try {
if (doBacktrack) {
beam_zpos = std::stod(string(optarg).substr(1));
}
else {
beam_zpos = std::stod(string(optarg));
}
}
catch (const std::invalid_argument& ia) {
G4cout << "Invalid argument when reading beam offset (z)" << G4endl
<< "Got: '" << optarg << "'" << G4endl
<< "Expected a floating point number! (exponential notation and prepended '*' is accepted)" << G4endl;
exit(1);
}
break;
case 1500: //--beamAngle ; Initial angle of beam particles
try {
beam_angle = std::stod(string(optarg));
}
catch (const std::invalid_argument& ia) {
G4cout << "Invalid argument when reading beamAngle" << G4endl
<< "Got: '" << optarg << "'" << G4endl
<< "Expected a floating point number! (exponential notation is accepted)" << G4endl;
exit(1);
}
break;
case 'c': //--covar ; Beam covariance matrix from Twiss parameters
//-c epsN[um]:beta[m]:alpha(::epsN_Y[um]:betaY[m]:alphaY)
covarianceString = G4String(optarg);
break;
case 1200: //--beamRcut ; Beam radial cutoff [mm]
try {
beam_rCut = std::stod(string(optarg));
}
catch (const std::invalid_argument& ia) {
G4cout << "Invalid argument when reading beam_rCut" << G4endl
<< "Got: '" << optarg << "'" << G4endl
<< "Expected a floating point number! (exponential notation is accepted)" << G4endl;
exit(1);
}
break;
case 1700: //--beamFile ; Input filename to load beam from
beam_loadFile = G4String(optarg);
break;
case 'f': //--outname ; Output filename
filename_out = G4String(optarg);
break;
case 'o': //--outname ; Output foldername
foldername_out = G4String(optarg);
break;
case 'r': //--miniroot ; Mini ROOT file
miniROOTfile = true;
break;
case 's': //--seed ; RNG seed
try {
rngSeed = std::stoi(string(optarg));
}
catch (const std::invalid_argument& ia) {
G4cout << "Invalid argument when reading rngSeed" << G4endl
<< "Got: '" << optarg << "'" << G4endl
<< "Expected an integer!" << G4endl;
exit(1);
}
break;
case 'q': //--quickmode ; Quick mode (skip most plots)
quickmode = true;
break;
case 1004: //--anaScatterTest ; Make analytical plots for scattering
anaScatterTest = true;
break;
case 1000: //--cutoffEnergyFraction ; Cutoff energy fraction
try {
cutoff_energyFraction = std::stod(string(optarg));
}
catch (const std::invalid_argument& ia) {
G4cout << "Invalid argument when reading cutoff_energyFraction" << G4endl
<< "Got: '" << optarg << "'" << G4endl
<< "Expected a floating point number! (exponential notation is accepted)" << G4endl;
exit(1);
}
if (cutoff_energyFraction > 1.0 || cutoff_energyFraction < 0) {
G4ExceptionDescription errormessage;
errormessage << "Expected an energy cut off fraction between 0.0 and 1.0, but " << cutoff_energyFraction << " was given!";
G4Exception("MiniScatter.cc Flag Check: --cutoff_energyFraction","MSFlagCheck1000",FatalException,errormessage);
}
break;
case 1001: //--cutoffRadius ; Cutoff radius [mm]
try {
cutoff_radius = std::stod(string(optarg));
}
catch (const std::invalid_argument& ia) {
G4cout << "Invalid argument when reading cutoff_radius" << G4endl
<< "Got: '" << optarg << "'" << G4endl
<< "Expected a floating point number! (exponential notation is accepted)" << G4endl;
exit(1);
}
break;
case 1002: //--edepDZ ; Z bin width for energy deposit histograms [mm]
try {
edep_dens_dz = std::stod(string(optarg));
}
catch (const std::invalid_argument& ia) {
G4cout << "Invalid argument when reading edep_dens_dz" << G4endl
<< "Got: '" << optarg << "'" << G4endl
<< "Expected a floating point number! (exponential notation is accepted)" << G4endl;
exit(1);
}
break;
case 1003: //--engNbins ; Number of bins for the energy 1D histograms
if (engNbins != 0) {
G4cout << "Can only set engNbins once." << G4endl;
}
try {
engNbins = std::stoi(string(optarg));
}
catch (const std::invalid_argument& ia) {
G4cout << "Invalid argument when reading engNbins" << G4endl
<< "Got: '" << optarg << "'" << G4endl
<< "Expected an integer!" << G4endl;
exit(1);
}
if (engNbins < 0){
G4cout << "engNbins must be >= 0" << G4endl;
}
break;
case 1005: //--histPosLim ; Position Histogram Limit change
try {
histPosLim = std::stod(string(optarg));
}
catch (const std::invalid_argument& ia) {
G4cout << "Invalid argument when reading histPosLim" << G4endl
<< "Got: '" << optarg << "'" << G4endl
<< "Expected a floating point number!" << G4endl;
exit(1);
}
break;
case 1006: //--histAngLim ; Angle Histogram Limit change
try {
histAngLim = std::stod(string(optarg));
}
catch (const std::invalid_argument& ia) {
G4cout << "Invalid argument when reading histAngLim" << G4endl
<< "Got: '" << optarg << "'" << G4endl
<< "Expected a floating point number!" << G4endl;
exit(1);
}
break;
case 1100: //--object/--magnet ; Definition of an Object, also known as a Magnet
magnetDefinitions.push_back(string(optarg));
break;
default: // WTF?
G4cout << "Got an unknown getopt_char '" << char(getopt_char) << "' ("<< getopt_char<<")"
<< " when parsing command line arguments." << G4endl;
exit(1);
}
}
//Copy remaining arguments to array that is passed to Geant4
int argc_effective = argc-optind+1;
char** argv_effective = new char*[argc_effective];
argv_effective[0] = argv[0]; //First arg is always executable name
for (int i = optind; i < argc;i++){
argv_effective[i+1-optind] = argv[i];
}
//Print the gotten/default arguments
printHelp(target_thick,
target_material,
background_material,
&detector_distances,
detector_angle,
target_angle,
world_size,
physListName,
physCutoffDist,
numEvents,
beam_energy,
beam_eFlat_min,
beam_eFlat_max,
beam_type,
beam_offset,
beam_zpos,
beam_angle,
covarianceString,
beam_rCut,
doBacktrack,
beam_loadFile,
rngSeed,
filename_out,
foldername_out,
quickmode,
anaScatterTest,
miniROOTfile,
cutoff_energyFraction,
cutoff_radius,
edep_dens_dz,
engNbins,
histPosLim,
histAngLim,
magnetDefinitions);
G4cout << "Status of other arguments:" << G4endl
<< "numEvents = " << numEvents << G4endl
<< "useGUI = " << (useGUI==true ? "yes" : "no") << G4endl;
if (covarianceString != "") {
G4cout << "Covariance string = '" << covarianceString << "'" << G4endl;
}
G4cout << "Arguments which are passed on to Geant4:" << G4endl;
for (int i = 0; i < argc_effective; i++) {
G4cout << i << " '" << argv_effective[i] << "'" << G4endl;
}
G4cout << G4endl;
G4cout << "Starting Geant4..." << G4endl << G4endl;
G4RunManager* runManager = new G4RunManager;
//Set the initial seed
if (rngSeed == 0) {
G4Random::setTheSeed(time(NULL));
}
else {
G4Random::setTheSeed(rngSeed);
}
// ** Set mandatory initialization classes **
// Physics
G4int verbose=0;
G4VModularPhysicsList* physlist = NULL;
if (physListName.substr(0,7) == "EMonly_") {
G4String EMlistName = physListName.substr(7,physListName.length()-7);
physlist = new EMonlyPhysicsList(EMlistName);
}
else {
G4PhysListFactory plFactory;
physlist = plFactory.GetReferencePhysList(physListName);
if (physlist==NULL) {
G4cerr << "Bad physics list!" << G4endl;
G4cerr << G4endl;
G4cerr << "Possiblities:" << G4endl;
const std::vector<G4String>& listnames_hadr = plFactory.AvailablePhysLists();
for (auto l : listnames_hadr) {
G4cerr << "'" << l << "'" << G4endl;
}
G4cerr << G4endl;
G4cerr << "EM options:" << G4endl;
const std::vector<G4String>& listnames_em = plFactory.AvailablePhysListsEM();
for (auto l : listnames_em) {
G4cerr << "'" << l << "'" << G4endl;
}
G4cerr << G4endl;
G4String errormessage = "Physics list '" + physListName +"' not found.";
G4Exception("MiniScatter.cc physics list selection", "MSPhysList1000", FatalException, errormessage);
}
}
physlist->SetVerboseLevel(verbose);
runManager->SetUserInitialization(physlist);
//physlist->SetDefaultCutValue( 0.00001*mm);
physlist->SetDefaultCutValue( physCutoffDist*mm);
// Geometry and detectors
G4double world_min_length_detectors =
VirtualTrackerWorldConstruction::ComputeMaxAbsZ(&detector_distances, detector_angle, world_size) * 2.0;
G4double world_min_length_beam = fabs(PrimaryGeneratorAction::GetDefaultZpos(target_thick)) * 2.0;
if (beam_zpos != 0.0) {
world_min_length_beam = fabs(beam_zpos) * 2.0;
}
G4double world_min_length = world_min_length_detectors;
if (world_min_length_beam > world_min_length) {
world_min_length = world_min_length_beam;
}
DetectorConstruction* physWorld = new DetectorConstruction(target_thick,
target_material,
target_angle,
background_material,
world_size,
world_min_length,
magnetDefinitions);
MagnetSensorWorldConstruction* magnetSensorWorld =
new MagnetSensorWorldConstruction("MagnetSensorWorld",physWorld);
physWorld->RegisterParallelWorld(magnetSensorWorld);
physlist->RegisterPhysics(new G4ParallelWorldPhysics("MagnetSensorWorld"));
VirtualTrackerWorldConstruction* virtualTrackerWorld =
new VirtualTrackerWorldConstruction("VirtualTrackerWorld",physWorld, &detector_distances, detector_angle);
physWorld->RegisterParallelWorld(virtualTrackerWorld);
physlist->RegisterPhysics(new G4ParallelWorldPhysics("VirtualTrackerWorld"));
runManager->SetUserInitialization(physWorld);
// ** Set user action classes **
PrimaryGeneratorAction* gen_action = new PrimaryGeneratorAction(physWorld,
beam_energy,
beam_type,
beam_offset,
beam_zpos,
doBacktrack,
beam_angle,
covarianceString,
beam_rCut,
rngSeed,
beam_eFlat_min,
beam_eFlat_max,
beam_loadFile,
numEvents);
runManager->SetUserAction(gen_action);
//
RunAction* run_action = new RunAction;
runManager->SetUserAction(run_action);
//
EventAction* event_action = new EventAction(run_action);
runManager->SetUserAction(event_action);
// ** Final initializations **
//Initialize G4 kernel
runManager->Initialize();
//Initialize magnetic fields
physWorld->PostInitialize();
//Configure ROOT output
RootFileWriter::GetInstance()->setFilename(filename_out);
RootFileWriter::GetInstance()->setFoldername(foldername_out);
RootFileWriter::GetInstance()->setQuickmode(quickmode);
RootFileWriter::GetInstance()->setanaScatterTest(anaScatterTest);
RootFileWriter::GetInstance()->setMiniFile(miniROOTfile);
RootFileWriter::GetInstance()->setBeamEnergyCutoff(cutoff_energyFraction);
RootFileWriter::GetInstance()->setPositionCutoffR(cutoff_radius);
RootFileWriter::GetInstance()->setEdepDensDZ(edep_dens_dz);
RootFileWriter::GetInstance()->setEngNbins(engNbins); // 0 = auto
RootFileWriter::GetInstance()->setNumEvents(numEvents); // May be 0
RootFileWriter::GetInstance()->setRNGseed(rngSeed);
RootFileWriter::GetInstance()->setHistPosLim(histPosLim);
RootFileWriter::GetInstance()->setHistAngLim(histAngLim);
#ifdef G4VIS_USE
// Initialize visualization
G4VisManager* visManager = new G4VisExecutive;
// G4VisExecutive can take a verbosity argument - see /vis/verbose guidance.
// G4VisManager* visManager = new G4VisExecutive("Quiet");
visManager->Initialize();
#endif
// Get the pointer to the User Interface manager
G4UImanager* UImanager = G4UImanager::GetUIpointer();
// ** Start the run **
if (argc_effective != 1) { // batch mode
if (useGUI) {
G4cout << "UseGUI is not compatible with batch mode!" << G4endl;
exit(1);
}
G4String command = "/control/execute ";
G4String fileName = argv_effective[1];
UImanager->ApplyCommand(command+fileName);
}
else if (useGUI == true) { // interactive mode : define UI session
#ifdef G4UI_USE
G4UIExecutive* ui = new G4UIExecutive(argc_effective,argv_effective);
#ifdef G4VIS_USE
UImanager->ApplyCommand("/control/execute vis.mac");
#endif
if (numEvents > 0) {
G4cout << G4String("'/run/beamOn ") + std::to_string(numEvents) << "'" << G4endl;
UImanager->ApplyCommand(G4String("/run/beamOn ") + std::to_string(numEvents));
}
if (ui->IsGUI())
ui->SessionStart(); //Returns when GUI is closed.
delete ui;
#else
G4cout << "ERROR in initialization: GUI is turned on (-g), but G4UI_USE is not set!" << G4endl;
exit(1);
#endif
}
//Run given number of events
if (useGUI==false and numEvents > 0) {
G4cout << G4String("'/run/beamOn ") + std::to_string(numEvents) << "'" << G4endl;
UImanager->ApplyCommand(G4String("/run/beamOn ") + std::to_string(numEvents));
}
G4cout <<"Done." << G4endl;
// ** Job termination and cleanup **
// Free the store: user actions, physics_list and detector_description are
// owned and deleted by the run manager, so they should not
// be deleted in the main() program !
#ifdef G4VIS_USE
delete visManager;
#endif
// Delete runManager
delete runManager;
G4cout << "runManager deleted" << G4endl;
//Cleanup memory
delete[] argv_effective;
argv_effective = NULL;
delete magnetSensorWorld;
magnetSensorWorld = NULL;
G4cout << "MiniScatter is finished" << G4endl;
return 0;
}
//--------------------------------------------------------------------------------
void printHelp(G4double target_thick,
G4String target_material,
G4String background_material,
std::vector<G4double>* detector_distances,
G4double detector_angle,
G4double target_angle,
G4double world_size,
G4String physListName,
G4double physCutoffDist,
G4int numEvents,
G4double beam_energy,
G4double beam_eFlat_min,
G4double beam_eFlat_max,
G4String beam_type,
G4double beam_offset,
G4double beam_zpos,
G4double beam_angle,
G4String covarianceString,
G4double beam_rCut,
G4bool doBacktrack,
G4String beam_loadFile,
G4int rngSeed,
G4String filename_out,
G4String foldername_out,
G4bool quickmode,
G4bool anaScatterTest,
G4bool miniROOTfile,
G4double cutoff_energyFraction,
G4double cutoff_radius,
G4double edep_dens_dz,
G4int engNbins,
G4double histPosLim,
G4double histAngLim,
std::vector<G4String> &magnetDefinitions) {
G4cout << "Usage/options, long and short forms:" << G4endl<<G4endl;
G4cout << " --thick/-t <double>" << G4endl
<< "\t Target thickness [mm]"
<< "\t Set thickness to 0.0 for no target (only objects)" << G4endl
<< "\t Default/current value = " << target_thick << G4endl <<G4endl;
G4cout << " --mat/-m <string>" << G4endl
<< "\t Target material name" << G4endl
<< "\t Valid choices: 'G4_Al', 'G4_Au','G4_C', 'G4_Cu', 'G4_Pb', 'G4_Ti', 'G4_Si', 'G4_W', 'G4_U', 'G4_Fe'," << G4endl
<< "\t 'G4_MYLAR', 'G4_KAPTON', 'G4_STAINLESS-STEEL', 'G4_WATER', 'G4_SODIUM_IODIDE', 'G4_POLYPROPYLENE'" << G4endl
<< "\t 'G4_Galactic', 'G4_AIR'," << G4endl
<< "\t 'Sapphire', 'ChromoxPure', 'ChromoxScreen'." << G4endl
<< "\t Also possible: 'gas::pressure' " << G4endl
<< "\t where 'gas' is 'H_2', 'He', 'N_2', 'Ne', or 'Ar'," << G4endl
<< "\t and pressure is given in mbar (T=300K is assumed)." << G4endl
<< "\t Default/current value = '"
<< target_material << "'" << G4endl << G4endl;
G4cout << " --backgroundMaterial <string>" << G4endl
<< "\t The name of the background material (world volume) to use." << G4endl
<< "\t Default/current value = '"
<< background_material << "'" << G4endl << G4endl;
G4cout << " --dist/-d <double>(:<double>:<double>:...) or NONE" << G4endl
<< "\t Detector distance(s) [mm]" << G4endl
<< "\t Default/current value = ";
if (detector_distances->size() == 0) {
G4cout << "NONE" << G4endl<<G4endl;
}
else {
for (int i = 0; i < ((int)detector_distances->size())-1; i++) {
G4cout << detector_distances->at(i) << ":";
}
G4cout << detector_distances->back() << G4endl<<G4endl;
}
G4cout << " --ang/-a <double>" << G4endl
<< "\t Detector angle [deg]" << G4endl
<< "\t Default/current value = "
<< detector_angle << G4endl << G4endl;
G4cout << " --targetAngle/-A <double>" << G4endl
<< "\t Target angle [deg]" << G4endl
<< "\t Default/current value = "
<< target_angle << G4endl << G4endl;
G4cout << " --worldsize/-w <double>" << G4endl
<< "\t World size X/Y [mm]" << G4endl
<< "\t Default/current value = "
<< world_size << G4endl << G4endl;
G4cout << " --phys/-p <string>" << G4endl
<< "\t Physics list name" << G4endl
<< "\t Run with an invalid value to see options. To disable hadronic physics," << G4endl
<< "\t use the \"base\" physics list 'EMonly_' followed by one of the usual EM options ('EMY' etc)," << G4endl