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fix alpha simulation and FindThetaCM

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This commit is contained in:
Ryan Tang 2024-02-20 16:38:40 -05:00
parent b0b37ce950
commit 364530f73c
7 changed files with 310 additions and 349 deletions
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1
.gitignore vendored
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@ -24,4 +24,5 @@ Cleopatra/Isotope
Cleopatra/IsotopeShort Cleopatra/IsotopeShort
Cleopatra/PlotSimulation Cleopatra/PlotSimulation
Cleopatra/PlotTGraphTObjArray Cleopatra/PlotTGraphTObjArray
Cleopatra/SimAlpha
Cleopatra/Transfer Cleopatra/Transfer

22
Cleopatra/ClassHelios.h
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@ -77,6 +77,7 @@ class HELIOS{
public: public:
HELIOS(); HELIOS();
HELIOS(std::string filename, unsigned short ID);
~HELIOS(); ~HELIOS();
void SetCoincidentWithRecoil(bool TorF){ this->isCoincidentWithRecoil = TorF;} void SetCoincidentWithRecoil(bool TorF){ this->isCoincidentWithRecoil = TorF;}
@ -166,11 +167,25 @@ private:
const double c = 299.792458; //mm/ns const double c = 299.792458; //mm/ns
void Clear();
}; };
HELIOS::HELIOS(){ HELIOS::HELIOS(){
Clear();
}
HELIOS::HELIOS(std::string filename, unsigned short ID){
Clear();
SetDetectorGeometry(filename, ID);
}
HELIOS::~HELIOS(){
}
void HELIOS::Clear(){
orbitb.Clear(); orbitb.Clear();
orbitB.Clear(); orbitB.Clear();
@ -191,11 +206,6 @@ HELIOS::HELIOS(){
overrideDetDistance = false; overrideDetDistance = false;
overrideFirstPos = false; overrideFirstPos = false;
isCoincidentWithRecoil = false; isCoincidentWithRecoil = false;
}
HELIOS::~HELIOS(){
} }
void HELIOS::OverrideMagneticField(double BField){ void HELIOS::OverrideMagneticField(double BField){

20
Cleopatra/ClassTransfer.h
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@ -43,7 +43,7 @@ public:
void SetExA(double Ex); void SetExA(double Ex);
void SetExB(double Ex); void SetExB(double Ex);
TString GetReactionName(); TString GetReactionName() const;
TString GetReactionName_Latex(); TString GetReactionName_Latex();
ReactionConfig GetRectionConfig() { return config;} ReactionConfig GetRectionConfig() { return config;}
@ -65,7 +65,7 @@ public:
TLorentzVector GetPB() const {return PB;} TLorentzVector GetPB() const {return PB;}
void PrintFourVectors() const; void PrintFourVectors() const;
void PrintReaction() const; void PrintReaction(bool withEx = true) const;
double CalkCM(double ExB); //momentum at CM frame double CalkCM(double ExB); //momentum at CM frame
void CalReactionConstant(); void CalReactionConstant();
@ -252,7 +252,7 @@ void TransferReaction::SetReactionFromFile(string configFile, unsigned short ID)
} }
TString TransferReaction::GetReactionName(){ TString TransferReaction::GetReactionName() const{
TString rName; TString rName;
rName.Form("%s(%s,%s)%s", nameA.c_str(), namea.c_str(), nameb.c_str(), nameB.c_str()); rName.Form("%s(%s,%s)%s", nameA.c_str(), namea.c_str(), nameb.c_str(), nameB.c_str());
return rName; return rName;
@ -272,6 +272,7 @@ TString TransferReaction::format(TString name){
} }
return "^{"+temp2+"}"+temp; return "^{"+temp2+"}"+temp;
} }
TString TransferReaction::GetReactionName_Latex(){ TString TransferReaction::GetReactionName_Latex(){
TString rName; TString rName;
rName.Form("%s(%s,%s)%s @ %.2f MeV/u", format(nameA).Data(), format(namea).Data(), format(nameb).Data(), format(nameB).Data(), config.beamEnergy); rName.Form("%s(%s,%s)%s @ %.2f MeV/u", format(nameA).Data(), format(namea).Data(), format(nameb).Data(), format(nameB).Data(), config.beamEnergy);
@ -327,8 +328,10 @@ void TransferReaction::PrintFourVectors() const {
} }
void TransferReaction::PrintReaction() const { void TransferReaction::PrintReaction(bool withEx) const {
printf("=====================================================\n");
printf("\e[1m\e[33m %s \e[0m\n", GetReactionName().Data());
printf("=====================================================\n"); printf("=====================================================\n");
printf("------------------------------ Beam\n"); printf("------------------------------ Beam\n");
printf(" beam : A = %3d, Z = %2d, Ex = %.2f MeV\n", config.beamA, config.beamZ, config.beamEx); printf(" beam : A = %3d, Z = %2d, Ex = %.2f MeV\n", config.beamA, config.beamZ, config.beamEx);
@ -342,10 +345,12 @@ void TransferReaction::PrintReaction() const {
printf("------------------------------ Recoil\n"); printf("------------------------------ Recoil\n");
printf(" light : A = %3d, Z = %2d \n", recoil.lightA, recoil.lightZ); printf(" light : A = %3d, Z = %2d \n", recoil.lightA, recoil.lightZ);
printf(" heavy : A = %3d, Z = %2d \n", recoil.heavyA, recoil.heavyZ); printf(" heavy : A = %3d, Z = %2d \n", recoil.heavyA, recoil.heavyZ);
printf("=====================================================\n"); printf("=====================================================\n");
exList.Print();
printf("=====================================================\n");
if( withEx ) {
exList.Print();
printf("=====================================================\n");
}
} }
void TransferReaction::Event(double thetaCM_rad, double phiCM_rad){ void TransferReaction::Event(double thetaCM_rad, double phiCM_rad){
@ -395,7 +400,6 @@ void TransferReaction::Event(double thetaCM_rad, double phiCM_rad){
} }
std::pair<double, double> TransferReaction::CalExThetaCM(double e, double z, double Bfield, double perpDist){ std::pair<double, double> TransferReaction::CalExThetaCM(double e, double z, double Bfield, double perpDist){
double Ex = TMath::QuietNaN(); double Ex = TMath::QuietNaN();

36
Cleopatra/FindThetaCM.C
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@ -22,12 +22,13 @@ int main(int argc, char *argv[]){
printf("=== Find ThetaCM convrage for each detector at Ex ====\n"); printf("=== Find ThetaCM convrage for each detector at Ex ====\n");
printf("=================================================================\n"); printf("=================================================================\n");
if(argc < 2 || argc > 6) { if(argc < 2 || argc > 7) {
printf("Usage: ./FindThetaCM Ex\n"); printf("Usage: ./FindThetaCM Ex\n");
printf("Usage: ./FindThetaCM Ex nDiv\n"); printf("Usage: ./FindThetaCM Ex nDiv\n");
printf("Usage: ./FindThetaCM Ex nDiv X-Ratio\n"); printf("Usage: ./FindThetaCM Ex nDiv X-Ratio\n");
printf("Usage: ./FindThetaCM Ex nDiv X-Ratio reactionTxt detGeoTxt\n"); printf("Usage: ./FindThetaCM Ex nDiv X-Ratio reactionTxt detGeoTxt ID\n");
exit(0); printf(" * default is the first settings from reaction and detGeo.\n");
exit(0);
} }
double Ex = 0; double Ex = 0;
@ -35,24 +36,21 @@ int main(int argc, char *argv[]){
int nDiv = 1; int nDiv = 1;
string reactionTxt = "reactionConfig.txt"; string reactionTxt = "reactionConfig.txt";
string detGeoTxt = "detectorGeo.txt"; string detGeoTxt = "detectorGeo.txt";
int ID = 0;
if ( argc >= 2 ){
Ex = atof(argv[1]); if ( argc >= 2 ) Ex = atof(argv[1]);
} if ( argc >= 3 ) nDiv = atoi(argv[2]);
if ( argc >= 3 ){ if ( argc >= 4 ) xRatio = atof(argv[3]);
nDiv = atoi(argv[2]); if ( argc >= 5 ) reactionTxt = argv[4];
} if ( argc >= 6 ) detGeoTxt = argv[5];
if ( argc >= 4 ){ if ( argc >= 6 ) ID = atoi(argv[6]);
xRatio = atof(argv[3]);
} if( nDiv < 1 ) {
if ( argc >= 5 ){ printf(" nDiv must be >= 1 \n");
reactionTxt = argv[4]; return -1;
}
if ( argc >= 6 ){
detGeoTxt = argv[5];
} }
FindThetaCM(Ex, nDiv, xRatio, reactionTxt, detGeoTxt); FindThetaCM(Ex, nDiv, xRatio, reactionTxt, detGeoTxt, ID);
return 0; return 0;
} }

270
Cleopatra/FindThetaCM.h
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@ -20,188 +20,124 @@
#include "../Cleopatra/ClassTransfer.h" #include "../Cleopatra/ClassTransfer.h"
void FindThetaCM(double Ex, int nDivision=1, double XRATION = 0.95, void FindThetaCM(double Ex, int nDivision=1, double XRATION = 0.95,
std::string basicConfig="reactionConfig.txt", std::string reactionConfigFileName="reactionConfig.txt",
std::string detGeoFileName = "detectorGeo.txt", unsigned short ID = 0){ std::string detGeoFileName = "detectorGeo.txt", unsigned short ID = 0){
//---- reaction
int AA, zA; //beam
int Aa, za; //target
int Ab, zb; //recoil-1
double ExA;
//---- beam ///========================================================= load files
double KEAmean, KEAsigma; // MeV/u , assume Guassian
double thetaMean, thetaSigma; // mrad , assume Guassian due to small angle
double xBeam, yBeam; // mm
/**///========================================================= load files TransferReaction reaction(reactionConfigFileName, ID);
ReactionConfig reConfig; reaction.SetExB(Ex);
DetGeo detGeo; reaction.CalReactionConstant();
if( reConfig.LoadReactionConfig(basicConfig) ){ reaction.PrintReaction(false);
ReactionConfig reConfig = reaction.GetRectionConfig();
Recoil recoil = reaction.GetRecoil();
KEAmean = reConfig.beamEnergy; HELIOS helios(detGeoFileName, ID);
KEAsigma = reConfig.beamEnergySigma; helios.PrintGeometry();
DetGeo detGeo = helios.GetDetectorGeometry();
Array array = helios.GetArrayGeometry();
//calculate a TGraph for thetaCM vs z
const int nData = 170;
double px[nData];
double py[nData];
double mb = reaction.GetMass_b();
double kCM = reaction.GetMomentumbCM();
double q = TMath::Sqrt(mb*mb + kCM * kCM );
double beta = reaction.GetReactionBeta() ;
double BField = detGeo.Bfield;
double slope = reaction.GetEZSlope(BField);
double gamma = reaction.GetReactionGamma();
double perpDist = array.detPerpDist;
thetaMean = reConfig.beamTheta; for(int i = 0; i < nData; i++){
thetaSigma = reConfig.beamThetaSigma; double thetacm = (i + 5.) * TMath::DegToRad();
double temp = TMath::TwoPi() * slope / beta / kCM * perpDist / TMath::Sin(thetacm);
px[i] = beta /slope * (gamma * beta * q - gamma * kCM * TMath::Cos(thetacm)) * (1 - TMath::ASin(temp)/TMath::TwoPi());
py[i] = thetacm * TMath::RadToDeg();
}
xBeam = reConfig.beamX; //find minimum z position
yBeam = reConfig.beamY; TGraph * xt = new TGraph(100, py, px);
xt->SetName("xt");
///double zMin0 = xt->Eval(0);
///printf("z for thetaCM = 0 : %f mm \n", zMin0);
///xt->Draw("AC*");
/// find the minimum z position and the corresponding theta
double zMin0 = 99999999;
double tMin0 = 99999999;
for( double ttt = 3 ; ttt < 20 ; ttt += 0.1 ){
double zzz = xt->Eval(ttt);
if( zzz < zMin0 ) {
zMin0 = zzz;
tMin0 = ttt;
}
}
printf(" z min %f mm at thetaCM %f deg \n", zMin0, tMin0);
AA = reConfig.beamA; zA = reConfig.beamZ; TGraph * tx = new TGraph(nData, px, py);
Aa = reConfig.targetA; za = reConfig.targetZ; tx->SetName(Form("tx"));
Ab = reConfig.recoil[ID].lightA; zb = reConfig.recoil[ID].lightZ; tx->SetLineColor(4);
ExA = reConfig.beamEx; //Remove nan data
for( int i = tx->GetN() -1 ; i >= 0 ; i--){
}else{ if( TMath::IsNaN(tx->GetPointX(i)) ) tx->RemovePoint(i);
printf("cannot load %s \n", basicConfig.c_str());
return;
} }
std::vector<double> pos; // tx->Draw("AC");
double a = 11.5;
double length = 50.5; ///========================================================= result
double firstPos = 0;
int iDet = 6;
int jDet = 4;
double BField = 0;
//=============================================================
//=============================================================
//=============================================================
//===== Set Reaction
TransferReaction reaction;
int AB = AA+Aa-Ab, zB = zA+za-zb;
reaction.SetA(AA,zA);
reaction.Seta(Aa,za);
reaction.Setb(Ab,zb);
reaction.SetB(AB,zB);
reaction.SetIncidentEnergyAngle(KEAmean, 0, 0);
reaction.SetExB(Ex);
reaction.SetExA(ExA);
reaction.CalReactionConstant();
printf("===================================================\n");
printf("=========== %27s ===========\n", reaction.GetReactionName().Data());
printf("===================================================\n");
printf("----- loading reaction from : %s. \n", basicConfig.c_str());
printf(" Ex A: %7.3f MeV\n", ExA);
printf(" KE: %7.4f \n", KEAmean);
printf(" theta: %7.4f \n", thetaMean);
printf("offset(x,y): %7.4f, %7.4f mm \n", xBeam, yBeam);
printf(" Q-value: %7.4f MeV \n", reaction.GetQValue() );
printf(" Max Ex: %7.4f MeV \n", reaction.GetMaxExB() );
printf("===================================================\n");
printf("----- loading detector geometery : %s.", detGeoFileName.c_str());
if(detGeo.LoadDetectorGeo(detGeoFileName) ){
pos = detGeo.array[ID].detPos;
a = detGeo.array[ID].detPerpDist;
length = detGeo.array[ID].detLength;
firstPos = detGeo.array[ID].firstPos;
iDet = detGeo.array[ID].nDet;
jDet = detGeo.array[ID].mDet;
BField = detGeo.Bfield;
printf("... done.\n");
}else{
printf("... fail\n");
return;
}
int iDet = array.nDet;
double length = array.detLength;
vector<double> midPos;
vector<double> midPos; for(int i = 0; i < iDet; i++){
if( array.firstPos > 0 ){
for(int i = 0; i < iDet; i++){ midPos.push_back(array.detPos[i]+length/2.);
if( firstPos > 0 ){ }else{
midPos.push_back(pos[i]+length/2.); midPos.push_back(array.detPos[i]-length/2.);
}else{ }
midPos.push_back(pos[i]-length/2.); // printf("%2d | %f \n", i, midPos.back());
} }
}
//calculate a TGraph for thetaCM vs z
double px[100];
double py[100];
double mb = reaction.GetMass_b();
double kCM = reaction.GetMomentumbCM();
double q = TMath::Sqrt(mb*mb + kCM * kCM );
double beta = reaction.GetReactionBeta() ;
double slope = 299.792458 * zb * abs(BField) / TMath::TwoPi() * beta / 1000.; // MeV/mm
double gamma = reaction.GetReactionGamma();
for(int i = 0; i < 100; i++){
double thetacm = (i + 5.) * TMath::DegToRad();
double temp = TMath::TwoPi() * slope / beta / kCM * a / TMath::Sin(thetacm);
px[i] = beta /slope * (gamma * beta * q - gamma * kCM * TMath::Cos(thetacm)) * (1 - TMath::ASin(temp)/TMath::TwoPi());
py[i] = thetacm * TMath::RadToDeg();
}
//find minimum z position printf("==== ThetaCM in degree =================\n");
TGraph * xt = new TGraph(100, py, px); printf(" x-ratio : %f, number of division : %d \n", XRATION, nDivision);
xt->SetName("xt"); printf("\n");
///double zMin0 = xt->Eval(0); for( int j = 0; j < nDivision + 1; j++) printf("%5.2f ", -XRATION + 2*XRATION/nDivision*j);
///printf("z for thetaCM = 0 : %f mm \n", zMin0); printf(" <<-- in X \n");
for( int j = 0; j < nDivision + 1; j++) printf("%5s ", " | ");
///xt->Draw("AC*"); printf("\n");
for( int j = 0; j < nDivision + 1; j++) printf("%5.2f ", length/2 -length*XRATION/2 + length*XRATION/nDivision*j);
/// find the minimum z position and the corresponding theta printf(" <<-- in mm \n\n");
double zMin0 = 0; printf("========================= Ex : %6.4f MeV\n", Ex);
double tMin0 = 0; printf(" %6s - %6s | %6s, %6s, %6s\n", "Min", "Max", "Mean", "Dt", "sin(x)dx * 180/pi");
for( double ttt = 3 ; ttt < 20 ; ttt += 0.1 ){ printf("-------------------------------------------------\n");
double zzz = xt->Eval(ttt); for( int i = 0; i < iDet; i++){
if( zzz < zMin0 ) { double zMin = midPos[i]-length*XRATION/2.;
zMin0 = zzz; double zMax = midPos[i]+length*XRATION/2.;
tMin0 = ttt; double zLength = zMax - zMin;
} double zStep = zLength/(nDivision);
} for( int j = 0 ; j < nDivision ; j++){
printf(" z min %f mm at thetaCM %f deg \n", zMin0, tMin0);
TGraph * tx = new TGraph(100, px, py);
tx->SetName(Form("tx"));
tx->SetLineColor(4);
//tx->Draw("AC*");
/**///========================================================= result
printf("==== ThetaCM in degree =================\n"); double tMin = (zMin + j*zStep > zMin0) ? tx->Eval(zMin + j*zStep) : TMath::QuietNaN();
printf("========================= x-ratio : %f, number of division : %d \n", XRATION, nDivision); double tMax = (zMin + (j+1)*zStep > zMin0) ? tx->Eval(zMin + (j+1)*zStep) : TMath::QuietNaN();
printf("\n");
for( int j = 0; j < nDivision + 1; j++) printf("%5.2f ", -XRATION + 2*XRATION/nDivision*j); double tMean = (tMax + tMin)/2.;
printf(" <<-- in X \n"); double dt = (tMax - tMin);
for( int j = 0; j < nDivision + 1; j++) printf("%5s ", " | ");
printf("\n"); double sintdt = TMath::Sin(tMean * TMath::DegToRad()) * dt ;
for( int j = 0; j < nDivision + 1; j++) printf("%5.2f ", length/2 -length*XRATION/2 + length*XRATION/nDivision*j);
printf(" <<-- in cm \n\n");
printf("========================= Ex : %6.4f MeV\n", Ex);
printf(" %6s - %6s | %6s, %6s, %6s\n", "Min", "Max", "Mean", "Dt", "sin(x)dx * 180/pi");
printf("-------------------------------------------------\n");
for( int i = 0; i < iDet; i++){
double zMin = midPos[i]-length*XRATION/2.;
double zMax = midPos[i]+length*XRATION/2.;
double zLength = zMax - zMin;
double zStep = zLength/(nDivision);
for( int j = 0 ; j < nDivision ; j++){
double tMin = (zMin + j*zStep > zMin0) ? tx->Eval(zMin + j*zStep) : TMath::QuietNaN();
double tMax = (zMin + (j+1)*zStep > zMin0) ? tx->Eval(zMin + (j+1)*zStep) : TMath::QuietNaN();
double tMean = (tMax + tMin)/2.;
double dt = (tMax - tMin);
double sintdt = TMath::Sin(tMean * TMath::DegToRad()) * dt ;
printf(" det-%d[%d]: %6.2f - %6.2f | %6.2f, %6.2f, %6.4f\n", i, j, tMin, tMax, tMean, dt, sintdt); printf(" det-%d[%d]: %6.2f - %6.2f | %6.2f, %6.2f, %6.4f\n", i, j, tMin, tMax, tMean, dt, sintdt);
} }
if( nDivision > 0 ) printf("--------------\n"); if( nDivision > 0 ) printf("--------------\n");
} }
printf("================================================= \n"); printf("================================================= \n");
} }

303
Cleopatra/alpha.C
View File

@ -1,4 +1,4 @@
#include "ClassHelios.h" #include "../Cleopatra/ClassHelios.h"
#include "TROOT.h" #include "TROOT.h"
#include "TBenchmark.h" #include "TBenchmark.h"
#include "TLorentzVector.h" #include "TLorentzVector.h"
@ -18,155 +18,164 @@
const double ma = 3727.3792; // alpha mass const double ma = 3727.3792; // alpha mass
void alpha(){ void alpha( int numEvent = 100000){
//================================================= User Setting //================================================= User Setting
const int numEnergy = 4; std::string heliosDetGeoFile = "detectorGeo.txt";
double energy [numEnergy] = {3.18, 5.16, 5.49, 5.81}; int geoID = 0;
//std::vector<double> energy = {3.18, 5.16, 5.49, 5.81};
std::vector<double> energy = {5.34, 5.42, 5.68, 6.05, 6.23, 6.77, 8.78}; //228Th
//---- Over-ride HELIOS detector geometry
// double BField = 2.5; // T
// double BFieldTheta = 0.; // direction of B-field
// bool isCoincidentWithRecoil = false;
// double eSigma = 0.040 ; // detector energy sigma MeV
// double zSigma = 0.500 ; // detector position sigma mm
//---- save root file name
TString saveFileName = "SimAlpha.root";
//=============================================================
//=============================================================
printf("===================================================\n");
printf("============= Alpha source in HELIOS ============\n");
printf("===================================================\n");
int numEnergy = energy.size();
printf("========= Alpha Enegry : \n");
for( int i = 0; i < numEnergy ; i++){
printf("%2d | %6.2f MeV\n", i, energy[i]);
}
//======== Set HELIOS
printf("############################################## HELIOS configuration\n");
HELIOS helios;
// helios.OverrideMagneticFieldDirection(BFieldTheta);
// helios.OverrideFirstPos(-700);
//helios.OverrideDetectorDistance(5);
// bool sethelios = helios.SetDetectorGeometry(heliosDetGeoFile, geoID);
// if( !sethelios){
// helios.OverrideMagneticField(BField);
// printf("======== B-field : %5.2f T, Theta : %6.2f deg\n", BField, BFieldTheta);
// }
// helios.SetCoincidentWithRecoil(isCoincidentWithRecoil);
// printf("========== energy resol.: %f MeV\n", eSigma);
// printf("=========== pos-Z resol.: %f mm \n", zSigma);
helios.SetDetectorGeometry(heliosDetGeoFile, geoID);
helios.PrintGeometry();
//====================== build tree
TFile * saveFile = new TFile(saveFileName, "recreate");
TTree * tree = new TTree("tree", "tree");
double theta, phi, T;
int hit; // the output of Helios.CalHit
double e, z, x, t;
int loop, detID;
double dphi, rho; //rad of rotation, and radius
int energyID;
double xHit, yHit;
int numEvent = 1000000; tree->Branch("hit", &hit, "hit/I");
tree->Branch("theta", &theta, "theta/D");
//---- HELIOS detector geometry tree->Branch("phi", &phi, "phi/D");
//string heliosDetGeoFile = "detectorGeo.txt"; tree->Branch("T", &T, "T/D");
string heliosDetGeoFile = ""; tree->Branch("energy", &energy, "energy/D");
double BField = 2.5; // T tree->Branch("energyID", &energyID, "energyID/I");
double BFieldTheta = 0.; // direction of B-field
bool isCoincidentWithRecoil = false; tree->Branch("e", &e, "e/D");
double eSigma = 0.040 ; // detector energy sigma MeV tree->Branch("z", &z, "z/D");
double zSigma = 0.500 ; // detector position sigma mm tree->Branch("t", &t, "t/D");
tree->Branch("detID", &detID, "detID/I");
//---- save root file name tree->Branch("loop", &loop, "loop/I");
TString saveFileName = "alpha.root"; tree->Branch("dphi", &dphi, "dphi/D");
tree->Branch("rho", &rho, "rho/D");
//============================================================= tree->Branch("xHit", &xHit, "xHit/D");
//============================================================= tree->Branch("yHit", &yHit, "yHit/D");
printf("===================================================\n"); //========timer
printf("============= Alpha source in HELIOS ============\n"); TBenchmark clock;
printf("===================================================\n"); bool shown ;
clock.Reset();
printf("========= Alpha Enegry : \n"); clock.Start("timer");
for( int i = 0; i < numEnergy ; i++){ shown = false;
printf("%2d | %6.2f MeV\n", i, energy[i]); printf("############################################## generating %d events \n", numEvent);
}
//====================================================== calculate
int count = 0;
//======== Set HELIOS TLorentzVector P;
printf("############################################## HELIOS configuration\n"); TVector3 v;
HELIOS helios; for( int i = 0; i < numEvent; i++){
helios.OverrideMagneticFieldDirection(BFieldTheta); //==== generate alpha
helios.OverrideFirstPos(-700); theta = TMath::ACos(2 * gRandom->Rndm() - 1) ;
//helios.OverrideDetectorDistance(5); phi = TMath::TwoPi() * gRandom->Rndm();
bool sethelios = helios.SetDetectorGeometry(heliosDetGeoFile);
if( !sethelios){ energyID = gRandom->Integer(numEnergy);
helios.OverrideMagneticField(BField); T = energy[energyID];
printf("======== B-field : %5.2f T, Theta : %6.2f deg\n", BField, BFieldTheta);
} double p = TMath::Sqrt( ( ma + T )*(ma + T) - ma* ma);
helios.SetCoincidentWithRecoil(isCoincidentWithRecoil);
printf("========== energy resol.: %f MeV\n", eSigma); v.SetMagThetaPhi(p, theta, phi);
printf("=========== pos-Z resol.: %f mm \n", zSigma);
P.SetVectM(v, ma);
//====================== build tree P.SetUniqueID(2); //alpha particle has charge 2
TFile * saveFile = new TFile(saveFileName, "recreate");
TTree * tree = new TTree("tree", "tree"); //################################### tree branches
double theta, phi, T; //==== Helios
helios.CalArrayHit(P);
int hit; // the output of Helios.CalHit hit = helios.CheckDetAcceptance();
double e, z, x, t;
int loop, detID; e = helios.GetEnergy() + gRandom->Gaus(0, helios.GetDetectorGeometry().array[geoID].eSigma);
double dphi, rho; //rad of rotation, and radius
int energyID;
double xHit, yHit;
tree->Branch("hit", &hit, "hit/I"); trajectory orb = helios.GetTrajectory_b();
tree->Branch("theta", &theta, "theta/D");
tree->Branch("phi", &phi, "phi/D"); z = orb.z + gRandom->Gaus(0, helios.GetDetectorGeometry().array[geoID].zSigma);
tree->Branch("T", &T, "T/D"); t = orb.t;
tree->Branch("energy", &energy, "energy/D"); loop = orb.effLoop;
tree->Branch("energyID", &energyID, "energyID/I"); detID = orb.detID;
dphi = orb.phi;
tree->Branch("e", &e, "e/D"); rho = orb.rho;
tree->Branch("x", &x, "x/D"); xHit = orb.x;
tree->Branch("z", &z, "z/D"); yHit = orb.y;
tree->Branch("t", &t, "t/D");
tree->Branch("detID", &detID, "detID/I"); if( hit == 1) {
tree->Branch("loop", &loop, "loop/I"); count ++;
tree->Branch("dphi", &dphi, "dphi/D"); }
tree->Branch("rho", &rho, "rho/D");
tree->Branch("xHit", &xHit, "xHit/D"); tree->Fill();
tree->Branch("yHit", &yHit, "yHit/D");
//#################################################################### Timer
//========timer clock.Stop("timer");
TBenchmark clock; Double_t time = clock.GetRealTime("timer");
bool shown ; clock.Start("timer");
clock.Reset();
clock.Start("timer"); if ( !shown ) {
shown = false; if (fmod(time, 10) < 1 ){
printf("############################################## generating %d events \n", numEvent); printf( "%10d[%2d%%]| %8.2f sec | expect: %5.1f min \n", i, TMath::Nint((i+1)*100./numEvent), time , numEvent*time/(i+1)/60);
shown = 1;
//====================================================== calculate
int count = 0;
TLorentzVector P;
TVector3 v;
for( int i = 0; i < numEvent; i++){
//==== generate alpha
theta = TMath::ACos(2 * gRandom->Rndm() - 1) ;
phi = TMath::TwoPi() * gRandom->Rndm();
energyID = gRandom->Integer(numEnergy);
T = energy[energyID];
double p = TMath::Sqrt( ( ma + T )*(ma + T) - ma* ma);
v.SetMagThetaPhi(p, theta, phi);
P.SetVectM(v, ma);
//################################### tree branches
//==== Helios
hit = helios.CalHit(P, 2, P, 2);
e = helios.GetEnergy() + gRandom->Gaus(0, eSigma);
z = helios.GetZ() ;
x = helios.GetX() + gRandom->Gaus(0, zSigma);
t = helios.GetTime();
loop = helios.GetLoop();
detID = helios.GetDetID();
dphi = helios.GetdPhi();
rho = helios.GetRho();
xHit = helios.GetXPos(z);
yHit = helios.GetYPos(z);
z += gRandom->Gaus(0, zSigma);
if( hit == 1) {
count ++;
} }
}else{
tree->Fill(); if (fmod(time, 10) > 9 ){
shown = 0;
//#################################################################### Timer
clock.Stop("timer");
Double_t time = clock.GetRealTime("timer");
clock.Start("timer");
if ( !shown ) {
if (fmod(time, 10) < 1 ){
printf( "%10d[%2d%%]| %8.2f sec | expect: %5.1f min \n", i, TMath::Nint((i+1)*100./numEvent), time , numEvent*time/(i+1)/60);
shown = 1;
}
}else{
if (fmod(time, 10) > 9 ){
shown = 0;
}
} }
} }
}
saveFile->Write();
saveFile->Close(); saveFile->Write();
saveFile->Close();
printf("=============== done. saved as %s. count(hit==1) : %d\n", saveFileName.Data(), count);
gROOT->ProcessLine(".q"); printf("=============== done. saved as %s. count(hit==1) : %d\n", saveFileName.Data(), count);
gROOT->ProcessLine(".q");
} }
int main(){
alpha();
return 0;
}

7
Cleopatra/makefile
View File

@ -1,6 +1,6 @@
CC=g++ CC=g++
ALL = Isotope InFileCreator ExtractXSec ExtractXSecFromText PlotTGraphTObjArray Cleopatra FindThetaCM Transfer ALL = Isotope InFileCreator ExtractXSec ExtractXSecFromText PlotTGraphTObjArray Cleopatra FindThetaCM Transfer SimAlpha
all: $(ALL) all: $(ALL)
@ -22,11 +22,14 @@ PlotTGraphTObjArray: PlotTGraphTObjArray.C PlotTGraphTObjArray.h
Cleopatra: Cleopatra.C Cleopatra: Cleopatra.C
$(CC) Cleopatra.C -o Cleopatra `root-config --cflags --glibs` $(CC) Cleopatra.C -o Cleopatra `root-config --cflags --glibs`
FindThetaCM: FindThetaCM.C FindThetaCM.h ../Cleopatra/ClassHelios.h ../Cleopatra/ClassIsotope.h ../Cleopatra/constant.h FindThetaCM: FindThetaCM.C FindThetaCM.h ../Cleopatra/ClassTransfer.h ../Cleopatra/ClassHelios.h ../Cleopatra/ClassIsotope.h ../Cleopatra/constant.h
$(CC) FindThetaCM.C -o FindThetaCM `root-config --cflags --glibs` $(CC) FindThetaCM.C -o FindThetaCM `root-config --cflags --glibs`
Transfer: Transfer.C Transfer.h ../Cleopatra/ClassTransfer.h ../Cleopatra/ClassHelios.h ../Cleopatra/ClassIsotope.h ../Cleopatra/constant.h Transfer: Transfer.C Transfer.h ../Cleopatra/ClassTransfer.h ../Cleopatra/ClassHelios.h ../Cleopatra/ClassIsotope.h ../Cleopatra/constant.h
$(CC) Transfer.C -o Transfer `root-config --cflags --glibs` $(CC) Transfer.C -o Transfer `root-config --cflags --glibs`
SimAlpha: alpha.C ../Cleopatra/ClassHelios.h
$(CC) alpha.C -o SimAlpha `root-config --cflags --glibs`
clean: clean:
/bin/rm -f $(ALL) /bin/rm -f $(ALL)