diff --git a/core/detectors/trd/CbmTrdRadiator.cxx b/core/detectors/trd/CbmTrdRadiator.cxx
index 0adeb44987e41454f6ac59a08e877f9b705d5c7a..43e2a654087a9ddc74f7a2503b534a6cc55f0583 100644
--- a/core/detectors/trd/CbmTrdRadiator.cxx
+++ b/core/detectors/trd/CbmTrdRadiator.cxx
@@ -18,34 +18,18 @@
#include <TRandom3.h> // for gRandom
#include <TVector3.h> // for TVector3
-#include <iomanip> // for setprecision, __iom_t5
+#include <iomanip> // for setprecision, __iom_t5
+
#include <stdio.h> // for printf, sprintf
#include <stdlib.h> // for exit
using std::setprecision;
-
-// ----- Default constructor ---------------------------------------
-CbmTrdRadiator::CbmTrdRadiator() : CbmTrdRadiator(kTRUE, 130, 0.0013, 0.02) {}
-//-----------------------------------------------------------------------------
-
-// ----- Constructor --------------------------------------------------
-CbmTrdRadiator::CbmTrdRadiator(Bool_t SimpleTR,
- Int_t Nfoils,
- Float_t FoilThick,
- Float_t GapThick)
- : CbmTrdRadiator(SimpleTR, Nfoils, FoilThick, GapThick, "polyethylen", "") {}
-//-----------------------------------------------------------------------------
-
-// ----- Constructor --------------------------------------------------
-CbmTrdRadiator::CbmTrdRadiator(Bool_t SimpleTR,
- Int_t Nfoils,
- Float_t FoilThick,
- Float_t GapThick,
- TString material,
- TString prototype)
- : fWindowFoil("")
- , fRadType(prototype)
+// ----- Default constructor ------------------------------------------------
+CbmTrdRadiator::CbmTrdRadiator(Bool_t SimpleTR, Int_t Nfoils, Float_t FoilThick, Float_t GapThick, TString material,
+ TString window) // If "Kapton" is set, 0.05 mu aluminum will be added
+ : fWindowFoil(window)
+ , fRadType("")
, fDetType(-1)
, fFirstPass(kTRUE)
, fSimpleTR(SimpleTR)
@@ -58,13 +42,14 @@ CbmTrdRadiator::CbmTrdRadiator(Bool_t SimpleTR,
, fGapDens(-1.)
, fFoilOmega(-1.)
, fGapOmega(-1.)
- , fnPhotonCorr(1.0)
+ , fnPhotonCorr(0.65)
, fFoilThickCorr(1.)
, fGapThickCorr(1.)
, fGasThickCorr(1.)
, fnTRprod(-1)
, fWinDens(-1.)
, fWinThick(-1.)
+ , WINDOW()
, fCom1(-1.)
, fCom2(-1.)
, fSpBinWidth((Float_t) fSpRange / (Float_t) fSpNBins)
@@ -80,39 +65,39 @@ CbmTrdRadiator::CbmTrdRadiator(Bool_t SimpleTR,
, fnTRabs()
, fnTRab(-1.)
, fELoss(-1.)
- , fMom(-1., -1., -1.) {
+ , fMom(-1., -1., -1.)
+{
for (Int_t i = 0; i < fNMom; i++) {
fFinal[i] = nullptr;
}
- //Init();
- CreateHistograms();
}
//-----------------------------------------------------------------------------
-// ----- Constructor --------------------------------------------------
-CbmTrdRadiator::CbmTrdRadiator(Bool_t SimpleTR, TString prototype)
- : fWindowFoil("Kapton")
- , //which is the gas window of MS2012 prototypes. Anything else will result in a mylar gas window -> MuBu default
- fRadType(prototype)
+// ----- Constructor using predefined radiator prototype------------------------------------
+CbmTrdRadiator::CbmTrdRadiator(Bool_t SimpleTR, TString prototype,
+ TString window) // If "Kapton" is set, 0.05 mu aluminum will be added
+ : fWindowFoil(window)
+ , fRadType(prototype)
, fDetType(-1)
, fFirstPass(kTRUE)
, fSimpleTR(SimpleTR)
- , fNFoils(130)
- , fFoilThick(0.0013)
- , fGapThick(0.02)
+ , fNFoils(337)
+ , fFoilThick(0.0012)
+ , fGapThick(0.09)
, fFoilMaterial("")
, fGasThick(-1)
, fFoilDens(-1.)
, fGapDens(-1.)
, fFoilOmega(-1.)
, fGapOmega(-1.)
- , fnPhotonCorr(1.0)
+ , fnPhotonCorr(0.65)
, fFoilThickCorr(1.)
, fGapThickCorr(1.)
, fGasThickCorr(1.)
, fnTRprod(-1)
, fWinDens(-1.)
, fWinThick(-1.)
+ , WINDOW()
, fCom1(-1.)
, fCom2(-1.)
, fSpBinWidth((Float_t) fSpRange / (Float_t) fSpNBins)
@@ -128,19 +113,17 @@ CbmTrdRadiator::CbmTrdRadiator(Bool_t SimpleTR, TString prototype)
, fnTRabs()
, fnTRab(-1.)
, fELoss(-1.)
- , fMom(-1., -1., -1.) {
+ , fMom(-1., -1., -1.)
+{
for (Int_t i = 0; i < fNMom; i++) {
fFinal[i] = nullptr;
}
-
- //Init(SimpleTR, prototype);
- //SetRadPrototype(prototype);
- CreateHistograms();
}
//-----------------------------------------------------------------------------
// ----- Destructor ----------------------------------------------------
-CbmTrdRadiator::~CbmTrdRadiator() {
+CbmTrdRadiator::~CbmTrdRadiator()
+{
// FairRootManager *fManager = FairRootManager::Instance();
// fManager->Write();
if (fSpectrum) {
@@ -157,7 +140,8 @@ CbmTrdRadiator::~CbmTrdRadiator() {
}
// ----- Create Histogramms --------------------------------------------------
-void CbmTrdRadiator::CreateHistograms() {
+void CbmTrdRadiator::CreateHistograms()
+{
// Create the needed histograms
@@ -172,22 +156,13 @@ void CbmTrdRadiator::CreateHistograms() {
fSpectrum = new TH1D("fSpectrum", "TR spectrum", fSpNBins, SpLower, SpUpper);
if (fWinSpectrum) delete fWinSpectrum;
- fWinSpectrum = new TH1D(
- "fWinSpectrum", "TR spectrum in Mylar", fSpNBins, SpLower, SpUpper);
+ fWinSpectrum = new TH1D("fWinSpectrum", "TR spectrum in Mylar", fSpNBins, SpLower, SpUpper);
if (fDetSpectrum) delete fDetSpectrum;
- fDetSpectrum = new TH1D("fDetSpectrum",
- "TR spectrum escaped from detector",
- fSpNBins,
- SpLower,
- SpUpper);
+ fDetSpectrum = new TH1D("fDetSpectrum", "TR spectrum escaped from detector", fSpNBins, SpLower, SpUpper);
if (fDetSpectrumA) delete fDetSpectrumA;
- fDetSpectrumA = new TH1D("fDetSpectrumA",
- "TR spectrum absorbed in detector",
- fSpNBins,
- SpLower,
- SpUpper);
+ fDetSpectrumA = new TH1D("fDetSpectrumA", "TR spectrum absorbed in detector", fSpNBins, SpLower, SpUpper);
for (Int_t i = 0; i < fNMom; i++) {
sprintf(name, "fFinal%d", i + 1);
@@ -197,166 +172,122 @@ void CbmTrdRadiator::CreateHistograms() {
}
}
-// ----- Init function ----------------------------------------------------
-void CbmTrdRadiator::Init(Bool_t SimpleTR,
- Int_t Nfoils,
- Float_t FoilThick,
- Float_t GapThick,
- TString material = "polyethylen") {
+// ----- Init function ----------------------------------------------------
+void CbmTrdRadiator::Init()
+{
LOG(info) << "================CbmTrdRadiator===============";
- // Set initial parameters defining the radiator
+ CreateHistograms();
- fNFoils = Nfoils;
- fGapThick = GapThick;
- fFoilThick = FoilThick;
- fSimpleTR = SimpleTR;
- fnPhotonCorr = 1.0;
+ //Check if a radiator type has been set
+ if (fRadType == "") {
+ //Set fnPhotonCorr also if no prototype has been specified
+ fnPhotonCorr = 0.65;
+ //Check specified radiator types
+ }
+ else if (fRadType == "tdr18") { //Default TDR18 radiator 30cm Box + 1.5 cm in carbon grid
+ fFoilMaterial = "pefoam20";
+ fNFoils = 337;
+ fGapThick = 900 * 0.0001;
+ fFoilThick = 12 * 0.0001;
+ fnPhotonCorr = 0.65;
+ }
+ else if (fRadType == "B++" || fRadType == "K++") {
+ fFoilMaterial = "pokalon";
+ fNFoils = 350;
+ fGapThick = 0.07;
+ fFoilThick = 0.0024;
+ fnPhotonCorr = 0.65;
+ }
+ else if (fRadType == "G30") {
+ fFoilMaterial = "pefiber";
+ fNFoils = 1791;
+ fGapThick = 50 * 0.0001;
+ fFoilThick = 17 * 0.0001;
+ fnPhotonCorr = 0.65;
+ }
+ else { // If radiator typ is neither empty nor one of the above (because of typo or else) set defaults
+
+ LOG(warn) << "CbmTrdRadiator::Init : *********** Radiator prototype not known ***********";
+ LOG(warn) << "CbmTrdRadiator::Init : switch to default parameters ";
+ fFoilMaterial = "pefoam20";
+ fNFoils = 337;
+ fGapThick = 900 * 0.0001;
+ fFoilThick = 12 * 0.0001;
+ fnPhotonCorr = 0.65;
+ }
- CreateHistograms();
+ //Material has been specified now, either in the constructor or set by radiator type above. Now, go through materials and set properties accordingly
- LOG(info) << "CbmTrdRadiator::Init : Foil material : " << material;
- LOG(info) << "CbmTrdRadiator::Init : Nr. of foils : " << Nfoils;
- LOG(info) << "CbmTrdRadiator::Init : Foil thickness : "
- << setprecision(4) << FoilThick << " cm";
- LOG(info) << "CbmTrdRadiator::Init : Gap thickness : " << GapThick
- << " cm";
- LOG(info) << "CbmTrdRadiator::Init : Simple TR production: "
- << setprecision(2) << SimpleTR;
-
- // material dependent parameters for the radiator material
- // (polyethylen)
- if (material == "" || material == "polyethylen") {
- fFoilDens = 0.92; // [g/cm3 ]
- fFoilOmega = 20.9; //plasma frequency ( from Anton )
- } else if (material == "pefoam20") {
- // (polyethylen)
+
+ // material dependent parameters for the gas between the foils of the radiator
+ //Properties of the air gaps between foils
+ fGapDens = 0.001205; // [g/cm3]
+ fGapOmega = 0.7; //plasma frequency ( from Anton )
+ //material = fFoilMaterial;
+ if (fFoilMaterial == "pefoam20") {
+ // (polyethylen foam foil)
fFoilDens = 0.90; // [g/cm3 ]
fFoilOmega = 20.64; //plasma frequency ( from Cyrano )
- } else if (material == "pefiber") {
+ }
+ else if (fFoilMaterial == "polyethylen") {
+ // (polyethylen)
+ fFoilDens = 0.92; // [g/cm3 ]
+ fFoilOmega = 20.9; //plasma frequency ( from Anton )
+ }
+ else if (fFoilMaterial == "pefiber") {
// (polyethylen)
fFoilDens = 0.90; // [g/cm3 ]
fFoilOmega = 20.64; //plasma frequency ( from Cyrano )
- } else if (material == "mylar") {
+ }
+ else if (fFoilMaterial == "mylar") {
// (Mylar)
fFoilDens = 1.393; // [g/cm3 ]
fFoilOmega = 24.53; //plasma frequency ( from Cyrano )
- } else if (material == "pokalon") {
- // (Pokalon)
+ }
+ else if (fFoilMaterial == "pokalon") {
+ // (PokalonN470)
fFoilDens = 1.150; // [g/cm3 ]
- fFoilOmega = 22.50; //plasma frequency ( from Cyrano )
- } else {
- // (polyethylen)
- material = "polyethylen";
- fFoilDens = 0.92; // [g/cm3 ]
- fFoilOmega = 20.9; //plasma frequency ( from Anton )
+ fFoilOmega = 22.43; //plasma frequency ( from Cyrano )
+ }
+ else { // If material is empty or one of the above (because of typo or else) set default
+ LOG(warn) << "CbmTrdRadiator::Init : *********** Radiator material not known ***********";
+ LOG(warn) << "CbmTrdRadiator::Init : switch to default material ";
+ // (polyethylen foam foil)
+ fFoilMaterial = "pefoam20";
+ fFoilDens = 0.90; // [g/cm3 ]
+ fFoilOmega = 20.64; //plasma frequency ( from Cyrano )
}
- fFoilMaterial = material;
- // material dependent parameters for the gas between the foils of the
- // radiator
- // changed gap density at 16.04.07 FU
- // density of air is 0.001205, 0.00186
- //fGapDens = 0.00186; // [g/cm3]
- fGapDens = 0.001205; // [g/cm3]
- fGapOmega = 0.7; //plasma frequency ( from Anton )
// foil between radiator and gas chamber
- // TODO: implement kapton foil also in trd geometry
- fWinDens = 1.39; // [g/cm3]
- fWinThick = 0.0025; // [cm]
-
-
- // Get all the gas properties from CbmTrdGas
- CbmTrdGas* fTrdGas = CbmTrdGas::Instance();
- if (fTrdGas == 0) {
- fTrdGas = new CbmTrdGas();
- fTrdGas->Init();
+ if (fWindowFoil == "Kapton") { // 0.05 mu Aluminum is added in SigmaWin() for Kapton
+ fWinDens = 1.42; //[g/cm3] ?? define values ?? default mylar
+ fWinThick = 0.0025; // [cm] ?? define values ?? default mylar
}
-
- fCom2 = fTrdGas->GetNobleGas();
- fCom1 = fTrdGas->GetCO2();
- fDetType = fTrdGas->GetDetType();
- fGasThick = fTrdGas->GetGasThick();
-
- LOG(info) << "CbmTrdRadiator::Init : Detector noble gas : "
- << fTrdGas->GetNobleGas();
- LOG(info) << "CbmTrdRadiator::Init : Detector cruncher gas: "
- << fTrdGas->GetCO2();
- LOG(info) << "CbmTrdRadiator::Init : Detector type : "
- << fTrdGas->GetDetType();
- LOG(info) << "CbmTrdRadiator::Init : Detector gas thick. : "
- << fTrdGas->GetGasThick() << " cm";
-
- //LOG(info) << "************* End of Trd Radiator Init **************";
-
- // If simplified version is used one didn't calculate the TR
- // for each CbmTrdPoint in full glory, but create at startup
- // some histograms for several momenta which are later used to
- // get the TR much faster.
- if (fSimpleTR == kTRUE) {
-
- ProduceSpectra();
-
- TFile* oldfile = gFile;
- TFile* f1 = new TFile("TRhistos.root", "recreate");
- f1->cd();
-
- for (Int_t i = 0; i < fNMom; i++) {
- fFinal[i]->Write();
- }
-
- f1->Close();
- f1->Delete();
- gFile = oldfile;
+ else if (fWindowFoil != "Mylar") {
+ if (!WINDOW.Init(fWindowFoil)) fWindowFoil = "Mylar";
+ }
+ if (fWindowFoil == "Mylar") {
+ fWinDens = 1.39; //[g/cm3]
+ fWinThick = 0.0100; //[cm]
+ }
+ if (!WINDOW.fN) {
+ LOG(info) << "CbmTrdRadiator::Init : Window type : " << fWindowFoil;
+ LOG(info) << "CbmTrdRadiator::Init : Window density : " << fWinDens << " g/cm^3";
+ LOG(info) << "CbmTrdRadiator::Init : Window thickness : " << fWinThick << " cm";
}
-}
-//----------------------------------------------------------------------------
-
-// ----- Init function ----------------------------------------------------
-void CbmTrdRadiator::Init(Bool_t SimpleTR,
- Int_t Nfoils,
- Float_t FoilThick,
- Float_t GapThick) {
-
- LOG(info) << "================CbmTrdRadiator===============";
- // Set initial parameters defining the radiator
- fNFoils = Nfoils;
- fGapThick = GapThick;
- fFoilThick = FoilThick;
- fSimpleTR = SimpleTR;
- fnPhotonCorr = 1.0;
- CreateHistograms();
-
- //LOG(info) << "CbmTrdRadiator::Init : Foil material : " << material;
- LOG(info) << "CbmTrdRadiator::Init : Nr. of foils : " << Nfoils;
- LOG(info) << "CbmTrdRadiator::Init : Foil thickness : "
- << setprecision(4) << FoilThick << " cm";
- LOG(info) << "CbmTrdRadiator::Init : Gap thickness : " << GapThick
- << " cm";
- LOG(info) << "CbmTrdRadiator::Init : Simple TR production: "
- << setprecision(2) << SimpleTR;
-
-
- // material dependend parameters for the radiator material
- // (polyethylen)
- fFoilDens = 0.92; // [g/cm3 ]
- fFoilOmega = 20.9; //plasma frequency ( from Anton )
-
- // material dependent parameters for the gas between the foils of the
- // radiator
- // changed gap density at 16.04.07 FU
- // density of air is 0.001205, 0.00186
- //fGapDens = 0.00186; // [g/cm3]
- fGapDens = 0.001205; // [g/cm3]
- fGapOmega = 0.7; //plasma frequency ( from Anton )
-
- // foil between radiator and gas chamber
- // TODO: implement kapton foil also in trd geometry
- fWinDens = 1.39; // [g/cm3]
- fWinThick = 0.0025; // [cm]
+ LOG(info) << "CbmTrdRadiator::Init : Prototype : " << fRadType;
+ LOG(info) << "CbmTrdRadiator::Init : Scaling factor : " << fnPhotonCorr;
+ LOG(info) << "CbmTrdRadiator::Init : Foil material : " << fFoilMaterial;
+ LOG(info) << "CbmTrdRadiator::Init : Nr. of foils : " << fNFoils;
+ LOG(info) << "CbmTrdRadiator::Init : Foil thickness : " << setprecision(4) << fFoilThick << " cm";
+ LOG(info) << "CbmTrdRadiator::Init : Gap thickness : " << fGapThick << " cm";
+ LOG(info) << "CbmTrdRadiator::Init : Simple TR production: " << setprecision(2) << fSimpleTR;
+ LOG(info) << "CbmTrdRadiator::Init : Foil plasm. frequ. : " << fFoilOmega << " keV";
+ LOG(info) << "CbmTrdRadiator::Init : Gap plasm. frequ. : " << fGapOmega << " keV";
// Get all the gas properties from CbmTrdGas
@@ -370,14 +301,13 @@ void CbmTrdRadiator::Init(Bool_t SimpleTR,
fCom1 = fTrdGas->GetCO2();
fDetType = fTrdGas->GetDetType();
fGasThick = fTrdGas->GetGasThick();
- /*
- LOG(info) << "Detector noble gas : "<< fTrdGas->GetNobleGas();
- LOG(info) << "Detector cruncher gas: "<< fTrdGas->GetCO2();
- LOG(info) << "Detector type : "<< fTrdGas->GetDetType();
- LOG(info) << "Detector gas thick. : "<< fTrdGas->GetGasThick() <<" cm";
- */
- //LOG(info) << "************* End of Trd Radiator Init **************";
+ LOG(info) << "CbmTrdRadiator::Init : Detector noble gas : " << fTrdGas->GetNobleGas();
+ LOG(info) << "CbmTrdRadiator::Init : Detector quenching gas: " << fTrdGas->GetCO2();
+ LOG(info) << "CbmTrdRadiator::Init : Detector type : " << fTrdGas->GetDetType();
+ LOG(info) << "CbmTrdRadiator::Init : Detector gas thick. : " << fTrdGas->GetGasThick() << " cm";
+
+ //LOG(info) << "************* End of Trd Radiator Init **************";
// If simplified version is used one didn't calculate the TR
// for each CbmTrdPoint in full glory, but create at startup
// some histograms for several momenta which are later used to
@@ -386,236 +316,111 @@ void CbmTrdRadiator::Init(Bool_t SimpleTR,
ProduceSpectra();
- TFile* oldfile = gFile;
- TFile* f1 = new TFile("TRhistos.root", "recreate");
- f1->cd();
+ TFile* f1 = new TFile("TRhistos.root", "recreate");
for (Int_t i = 0; i < fNMom; i++) {
fFinal[i]->Write();
}
-
f1->Close();
f1->Delete();
- gFile = oldfile;
}
}
-//----------------------------------------------------------------------------
-// ----- Init function ----------------------------------------------------
-void CbmTrdRadiator::Init() {
- LOG(info) << "================CbmTrdRadiator===============";
- TString material;
- CreateHistograms();
- if (fRadType == "") {
- fFoilMaterial = "polyethylen";
- fnPhotonCorr = 1.0;
-
- /*
- LOG(info) << "CbmTrdRadiator::Init : Foil material : " << fFoilMaterial;
- //LOG(info) << "CbmTrdRadiator::Init : Nr. of foils : " << fNfoils;
- LOG(info) << "CbmTrdRadiator::Init : Foil thickness : " << setprecision(4) << fFoilThick <<" cm";
- LOG(info) << "CbmTrdRadiator::Init : Gap thickness : " << fGapThick << " cm";
- LOG(info) << "CbmTrdRadiator::Init : Simple TR production: " << setprecision(2)<< fSimpleTR;
- */
- // material dependend parameters for the radiator material
- // (polyethylen)
- fFoilDens = 0.92; // [g/cm3 ]
- fFoilOmega = 20.9; //plasma frequency ( from Anton )
+//----------------------------------------------------------------------------
+CbmTrdRadiator::CbmTrdEntranceWindow::CbmTrdEntranceWindow(TString def) : fN(0)
+{
+ memset(fThick, 0, NCOMPONENTS * sizeof(Float_t));
+ memset(fDens, 0, NCOMPONENTS * sizeof(Float_t));
+ memset(GetMu, 0, NCOMPONENTS * sizeof(GetMuPtr));
+ Init(def);
+}
- // material dependent parameters for the gas between the foils of the
- // radiator
- // changed gap density at 16.04.07 FU
- // density of air is 0.001205, 0.00186
- //fGapDens = 0.00186; // [g/cm3]
- fGapDens = 0.001205; // [g/cm3]
- fGapOmega = 0.7; //plasma frequency ( from Anton )
-
- // foil between radiator and gas chamber
- // TODO: implement kapton foil also in trd geometry
- fWinDens = 1.39; // [g/cm3]
- fWinThick = 0.0025; // [cm]
- } else {
- if (fRadType == "default") {
- material = "polyethylen";
- fNFoils = 130;
- fGapThick = 0.02;
- fFoilThick = 0.0013;
- fnPhotonCorr = 1.0;
- } else if (fRadType == "A") {
- material = "polyethylen";
- fNFoils = 200;
- fGapThick = 700 * 0.0001;
- fFoilThick = 15 * 0.0001;
- fnPhotonCorr = 0.40;
- } else if (fRadType == "Bshort" || fRadType == "Kshort") {
- material = "pokalon";
- fNFoils = 100;
- fGapThick = 0.07;
- fFoilThick = 0.0024;
- fnPhotonCorr = 0.65;
- } else if (fRadType == "B" || fRadType == "K") {
- material = "pokalon";
- fNFoils = 250;
- fGapThick = 0.07;
- fFoilThick = 0.0024;
- fnPhotonCorr = 0.65;
- } else if (fRadType == "B++" || fRadType == "K++") {
- material = "pokalon";
- fNFoils = 350;
- fGapThick = 0.07;
- fFoilThick = 0.0024;
- fnPhotonCorr = 0.65;
- } else if (fRadType == "C") {
- material = "polyethylen";
- fNFoils = 200;
- fGapThick = 700 * 0.0001;
- fFoilThick = 15 * 0.0001;
- fnPhotonCorr = 0.30;
- } else if (fRadType == "D") {
- material = "polyethylen";
- fNFoils = 100;
- fGapThick = 500 * 0.0001;
- fFoilThick = 15 * 0.0001;
- fnPhotonCorr = 0.45;
- } else if (fRadType == "E") {
- material = "polyethylen";
- fNFoils = 120;
- fGapThick = 500 * 0.0001;
- fFoilThick = 20 * 0.0001;
- fnPhotonCorr = 0.60;
- } else if (fRadType == "F") {
- material = "polyethylen";
- fNFoils = 220;
- fGapThick = 250 * 0.0001;
- fFoilThick = 20 * 0.0001;
- fnPhotonCorr = 0.65;
- } else if (fRadType == "G30") {
- material = "pefiber";
- fNFoils = 200;
- fGapThick = 700 * 0.0001;
- fFoilThick = 15 * 0.0001;
- fnPhotonCorr = 0.65;
- } else if (fRadType == "H") {
- material = "pefoam20";
- fNFoils = 200;
- fGapThick = 700 * 0.0001;
- fFoilThick = 15 * 0.0001;
- fnPhotonCorr = 0.65;
- } else if (fRadType == "H++") {
- material = "pefoam20";
- fNFoils = 200;
- fGapThick = 700 * 0.0001;
- fFoilThick = 15 * 0.0001;
- fnPhotonCorr = 0.65;
- } else {
- LOG(warn) << "CbmTrdRadiator::Init : *********** Radiator prototype not "
- "known ***********";
- LOG(warn) << "CbmTrdRadiator::Init : switch to default "
- "parameters ";
- material = "polyethylen";
- fNFoils = 130;
- fGapThick = 0.02;
- fFoilThick = 0.0013;
- fnPhotonCorr = 1.0;
+//----------------------------------------------------------------------------
+Bool_t CbmTrdRadiator::CbmTrdEntranceWindow::Init(TString def)
+{
+ TObjArray* mats = def.Tokenize(";");
+ for (fN = 0; fN < mats->GetEntriesFast(); fN++) {
+ TObjString* mat = (TObjString*) (*mats)[fN];
+ TString mname = mat->String();
+ if (mname.CompareTo("Al") == 0) {
+ fMat[fN] = "Al";
+ fDens[fN] = 2.7;
+ GetMu[fN] = CbmTrdRadiator::GetMuAl;
}
- fFoilMaterial = material;
- if (material == "" || material == "polyethylen") {
- fFoilDens = 0.92; // [g/cm3 ]
- fFoilOmega = 20.9; //plasma frequency ( from Anton )
- } else if (material == "pefoam20") {
- // (polyethylen)
- fFoilDens = 0.90; // [g/cm3 ]
- fFoilOmega = 20.64; //plasma frequency ( from Cyrano )
- } else if (material == "pefiber") {
- // (polyethylen)
- fFoilDens = 0.90; // [g/cm3 ]
- fFoilOmega = 20.64; //plasma frequency ( from Cyrano )
- } else if (material == "mylar") {
- // (Mylar)
- fFoilDens = 1.393; // [g/cm3 ]
- fFoilOmega = 24.53; //plasma frequency ( from Cyrano )
- } else if (material == "pokalon") {
- // (Pokalon)
- fFoilDens = 1.150; // [g/cm3 ]
- fFoilOmega = 22.50; //plasma frequency ( from Cyrano )
- } else {
- // (polyethylen)
- fFoilDens = 0.92; // [g/cm3 ]
- fFoilOmega = 20.9; //plasma frequency ( from Anton )
+ else if (mname.CompareTo("C") == 0) {
+ fMat[fN] = "C";
+ fDens[fN] = 2.267;
+ GetMu[fN] = CbmTrdRadiator::GetMuC;
}
- fGapDens = 0.001205; // [g/cm3]
- fGapOmega = 0.7; //plasma frequency ( from Anton )
- // foil between radiator and gas chamber
- fWinDens =
- 1.42; //[g/cm3] for Kapton -> Alu is added only in case of kapton !!!
- fWinThick = 0.0025; // [cm]
-
- LOG(info) << "CbmTrdRadiator::Init : Prototype : " << fRadType;
- LOG(info) << "CbmTrdRadiator::Init : Scaling factor : "
- << fnPhotonCorr;
- LOG(info) << "CbmTrdRadiator::Init : Foil material : "
- << fFoilMaterial;
- LOG(info) << "CbmTrdRadiator::Init : Nr. of foils : " << fNFoils;
- LOG(info) << "CbmTrdRadiator::Init : Foil thickness : "
- << setprecision(4) << fFoilThick << " cm";
- LOG(info) << "CbmTrdRadiator::Init : Gap thickness : " << fGapThick
- << " cm";
- LOG(info) << "CbmTrdRadiator::Init : Simple TR production: "
- << setprecision(2) << fSimpleTR;
- LOG(info) << "CbmTrdRadiator::Init : Foil plasm. frequ. : " << fFoilOmega
- << " keV";
- LOG(info) << "CbmTrdRadiator::Init : Gap plasm. frequ. : " << fGapOmega
- << " keV";
- LOG(info) << "CbmTrdRadiator::Init : Window density : " << fWinDens
- << " g/cm^3";
- LOG(info) << "CbmTrdRadiator::Init : Window thickness : " << fWinThick
- << " cm";
- }
-
-
- // Get all the gas properties from CbmTrdGas
- CbmTrdGas* fTrdGas = CbmTrdGas::Instance();
- if (fTrdGas == 0) {
- fTrdGas = new CbmTrdGas();
- fTrdGas->Init();
- }
-
- fCom2 = fTrdGas->GetNobleGas();
- fCom1 = fTrdGas->GetCO2();
- fDetType = fTrdGas->GetDetType();
- fGasThick = fTrdGas->GetGasThick();
-
- LOG(info) << "CbmTrdRadiator::Init : Detector noble gas : "
- << fTrdGas->GetNobleGas();
- LOG(info) << "CbmTrdRadiator::Init : Detector cruncher gas: "
- << fTrdGas->GetCO2();
- LOG(info) << "CbmTrdRadiator::Init : Detector type : "
- << fTrdGas->GetDetType();
- LOG(info) << "CbmTrdRadiator::Init : Detector gas thick. : "
- << fTrdGas->GetGasThick() << " cm";
-
- //LOG(info) << "************* End of Trd Radiator Init **************";
- // If simplified version is used one didn't calculate the TR
- // for each CbmTrdPoint in full glory, but create at startup
- // some histograms for several momenta which are later used to
- // get the TR much faster.
- if (fSimpleTR == kTRUE) {
-
- ProduceSpectra();
-
- TFile* f1 = new TFile("TRhistos.root", "recreate");
-
- for (Int_t i = 0; i < fNMom; i++) {
- fFinal[i]->Write();
+ else if (mname.CompareTo("HC") == 0) {
+ fMat[fN] = "HC";
+ fDens[fN] = 4.8e-2; // 48 Kg/m^3
+ GetMu[fN] = CbmTrdRadiator::GetMuAir;
}
- f1->Close();
- f1->Delete();
+ else if (mname.CompareTo("Po") == 0) {
+ fMat[fN] = "Po";
+ fDens[fN] = 0.92;
+ GetMu[fN] = CbmTrdRadiator::GetMuPo;
+ }
+ else if (mname.CompareTo("Pok") == 0) {
+ fMat[fN] = "Pok";
+ fDens[fN] = 1.150;
+ GetMu[fN] = CbmTrdRadiator::GetMuPok;
+ }
+ else if (mname.CompareTo("Ka") == 0) {
+ fMat[fN] = "Ka";
+ fDens[fN] = 1.39;
+ GetMu[fN] = CbmTrdRadiator::GetMuKa;
+ }
+ else if (mname.CompareTo("Air") == 0) {
+ fMat[fN] = "Air";
+ fDens[fN] = 1.205e-3;
+ GetMu[fN] = CbmTrdRadiator::GetMuAir;
+ }
+ else if (mname.CompareTo("Xe") == 0) {
+ fMat[fN] = "Xe";
+ fDens[fN] = 5.9e-3;
+ GetMu[fN] = CbmTrdRadiator::GetMuXe;
+ }
+ else if (mname.CompareTo("CO2") == 0) {
+ fMat[fN] = "CO2";
+ fDens[fN] = 1.9767e-3;
+ GetMu[fN] = CbmTrdRadiator::GetMuCO2;
+ }
+ else if (mname.CompareTo("My") == 0) {
+ fMat[fN] = "My";
+ fDens[fN] = 1.393;
+ GetMu[fN] = CbmTrdRadiator::GetMuMy;
+ }
+ else {
+ LOG(warn) << "CbmTrdEntranceWindow::Init : material " << mname.Data() << " not in the DB. Can't create "
+ << def.Data() << " entrance window structure. Default to Mylar.";
+ fN = 0;
+ return kFALSE;
+ }
+ LOG(info) << "CbmTrdEntranceWindow::Init : C" << fN << " type : " << fMat[fN];
+ LOG(info) << "CbmTrdEntranceWindow::Init : density : " << fDens[fN] << " g/cm^3";
+ LOG(info) << "CbmTrdEntranceWindow::Init : thickness : " << fThick[fN] << " cm";
}
+ mats->Delete();
+ delete mats;
+ return kTRUE;
}
+
//----------------------------------------------------------------------------
+void CbmTrdRadiator::SetEWwidths(Int_t n, Float_t* w)
+{
+ if (n > NCOMPONENTS) {
+ LOG(warn) << "CbmTrdEntranceWindow : can support only up to " << NCOMPONENTS
+ << " plane-parallel elements. Please check your simulations";
+ n = NCOMPONENTS;
+ }
+ memcpy(WINDOW.fThick, w, n * sizeof(Float_t));
+}
//---- Lattice Hit------------------------------------------------------------
-Bool_t CbmTrdRadiator::LatticeHit(const CbmTrdPoint* point) {
+Bool_t CbmTrdRadiator::LatticeHit(const CbmTrdPoint* point)
+{
//printf("---------------------------------------------------\n");
Double_t point_in[3];
Double_t point_out[3];
@@ -627,28 +432,23 @@ Bool_t CbmTrdRadiator::LatticeHit(const CbmTrdPoint* point) {
point_out[0] = point->GetXOut();
point_out[1] = point->GetYOut();
point_out[2] = point->GetZOut();
- Double_t back_direction[3] = {(point_in[0] - point_out[0]),
- (point_in[1] - point_out[1]),
+ Double_t back_direction[3] = {(point_in[0] - point_out[0]), (point_in[1] - point_out[1]),
(point_in[2] - point_out[2])};
if (back_direction[2] > 0) {
- LOG(debug2)
- << "CbmTrdRadiator::LatticeHit: MC-track points towards target!";
+ LOG(debug2) << "CbmTrdRadiator::LatticeHit: MC-track points towards target!";
//for(Int_t i = 0; i < 3; i++)
//printf("%i: in:%8.2f out:%8.2f direction:%8.2f\n",i,point_in[i],point_out[i],back_direction[i]);
return false;
}
- Double_t trackLength = TMath::Sqrt(back_direction[0] * back_direction[0]
- + back_direction[1] * back_direction[1]
+ Double_t trackLength = TMath::Sqrt(back_direction[0] * back_direction[0] + back_direction[1] * back_direction[1]
+ back_direction[2] * back_direction[2]);
trackLength *= 10.; // cm -> mm to get a step width of 1mm
//printf("track length:%7.2fmm\n",trackLength);
- gGeoManager->FindNode((point_out[0] + point_in[0]) / 2,
- (point_out[1] + point_in[1]) / 2,
+ gGeoManager->FindNode((point_out[0] + point_in[0]) / 2, (point_out[1] + point_in[1]) / 2,
(point_out[2] + point_in[2]) / 2);
- Double_t pos[3] = {
- point_in[0], point_in[1], point_in[2]}; // start at entrance point
+ Double_t pos[3] = {point_in[0], point_in[1], point_in[2]}; // start at entrance point
for (Int_t i = 0; i < 3; i++) {
back_direction[i] /= trackLength;
@@ -658,8 +458,7 @@ Bool_t CbmTrdRadiator::LatticeHit(const CbmTrdPoint* point) {
Int_t stepCount = 0;
while (
/*(!TString(gGeoManager->GetPath()).Contains("lattice") || !TString(gGeoManager->GetPath()).Contains("radiator")) &&*/
- pos[2] >= point_in[2] - 5
- && stepCount < 50) {
+ pos[2] >= point_in[2] - 5 && stepCount < 50) {
stepCount++;
//printf("step%i\n",stepCount);
for (Int_t i = 0; i < 3; i++) {
@@ -671,23 +470,27 @@ Bool_t CbmTrdRadiator::LatticeHit(const CbmTrdPoint* point) {
if (TString(gGeoManager->GetPath()).Contains("radiator")) {
//printf ("%s false\n",TString(gGeoManager->GetPath()).Data());
return false;
- } else if (TString(gGeoManager->GetPath()).Contains("lattice")) {
+ }
+ else if (TString(gGeoManager->GetPath()).Contains("lattice")) {
//printf ("%s true <----------------------------------------\n",TString(gGeoManager->GetPath()).Data());
return true;
- } else if (TString(gGeoManager->GetPath()).Contains("frame")) {
+ }
+ else if (TString(gGeoManager->GetPath()).Contains("frame")) {
//printf ("%s true <----------------------------------------\n",TString(gGeoManager->GetPath()).Data());
return true;
- } else {
+ }
+ else {
//printf ("%s\n",TString(gGeoManager->GetPath()).Data());
}
}
- } else {
- LOG(error) << "CbmTrdRadiator::LatticeHit: MC-track not in TRD! Node:"
- << TString(gGeoManager->GetPath()).Data()
+ }
+ else {
+ LOG(error) << "CbmTrdRadiator::LatticeHit: MC-track not in TRD! Node:" << TString(gGeoManager->GetPath()).Data()
<< " gGeoManager->MasterToLocal() failed!";
return false;
}
- } else {
+ }
+ else {
LOG(error) << "CbmTrdRadiator::LatticeHit: CbmTrdPoint == nullptr!";
return false;
}
@@ -695,12 +498,12 @@ Bool_t CbmTrdRadiator::LatticeHit(const CbmTrdPoint* point) {
}
//----------------------------------------------------------------------------
// ---- Spectra Production ---------------------------------------------------
-void CbmTrdRadiator::ProduceSpectra() {
+void CbmTrdRadiator::ProduceSpectra()
+{
fTrackMomentum = new Double_t[fNMom];
- Double_t trackMomentum[fNMom] = {
- 0.1, 0.25, 0.5, 1.0, 1.5, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0};
+ Double_t trackMomentum[fNMom] = {0.1, 0.25, 0.5, 1.0, 1.5, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0};
for (Int_t imom = 0; imom < fNMom; imom++) {
fTrackMomentum[imom] = trackMomentum[imom];
@@ -721,15 +524,15 @@ void CbmTrdRadiator::ProduceSpectra() {
tmp = fDetSpectrumA->GetBinContent(j + 1);
fFinal[i]->SetBinContent(j + 1, tmp);
}
- fFinal[i]->SetTitle(
- Form("%s-momentum%.2f", fFinal[i]->GetTitle(), fTrackMomentum[i]));
+ fFinal[i]->SetTitle(Form("%s-momentum%.2f", fFinal[i]->GetTitle(), fTrackMomentum[i]));
}
}
//----------------------------------------------------------------------------
// ---- GetTR ---------------------------------------------------------------
-Float_t CbmTrdRadiator::GetTR(TVector3 Mom) {
+Float_t CbmTrdRadiator::GetTR(TVector3 Mom)
+{
/*
* Simplified simulation of the TR
@@ -750,7 +553,6 @@ Float_t CbmTrdRadiator::GetTR(TVector3 Mom) {
}
ELoss(i);
-
}
/*
@@ -768,7 +570,8 @@ Float_t CbmTrdRadiator::GetTR(TVector3 Mom) {
//----------------------------------------------------------------------------
//----- main TR processing function ------------------------------
-void CbmTrdRadiator::ProcessTR() {
+void CbmTrdRadiator::ProcessTR()
+{
// Compute the angle normalization factor -
// for different angles the detector thicknesses are different
@@ -810,7 +613,8 @@ void CbmTrdRadiator::ProcessTR() {
//----------------------------------------------------------------------------
// ---- Compute the energy losses --------------------------------------------
-Int_t CbmTrdRadiator::ELoss(Int_t index) {
+Int_t CbmTrdRadiator::ELoss(Int_t index)
+{
// calculate the energy loss of the TR photons in the
// detector gas. fNTRab is the number of TR photons
@@ -835,7 +639,8 @@ Int_t CbmTrdRadiator::ELoss(Int_t index) {
eTR = fDetSpectrumA->GetRandom();
eLoss += eTR;
}
- } else {
+ }
+ else {
if (0 == fFinal[index]) {
LOG(error) << " -Err :: No input spectra ";
fELoss = -1;
@@ -859,7 +664,8 @@ Int_t CbmTrdRadiator::ELoss(Int_t index) {
//----------------------------------------------------------------------------
//----- TR spectrum ---------------------------------------------------
-Int_t CbmTrdRadiator::TRspectrum() {
+Int_t CbmTrdRadiator::TRspectrum()
+{
// calculate the number of TR photons in the radiator which are not
// absorbed in the radiator.
@@ -894,16 +700,13 @@ Int_t CbmTrdRadiator::TRspectrum() {
Float_t csFoil = fFoilOmega / energyeV;
Float_t csGap = fGapOmega / energyeV;
- Float_t rho1 = energyeV * fFoilThickCorr * 1e4 * 2.5
- * (1.0 / (gamma * gamma) + csFoil * csFoil);
- Float_t rho2 = energyeV * fFoilThickCorr * 1e4 * 2.5
- * (1.0 / (gamma * gamma) + csGap * csGap);
+ Float_t rho1 = energyeV * fFoilThickCorr * 1e4 * 2.5 * (1.0 / (gamma * gamma) + csFoil * csFoil);
+ Float_t rho2 = energyeV * fFoilThickCorr * 1e4 * 2.5 * (1.0 / (gamma * gamma) + csGap * csGap);
// Calculate the sum over the production angle tetan
Float_t sum = 0;
for (Int_t iSum = 0; iSum < kSumMax; iSum++) {
- Float_t tetan = (TMath::Pi() * 2.0 * (iSum + 1) - (rho1 + kappa * rho2))
- / (kappa + 1.0);
+ Float_t tetan = (TMath::Pi() * 2.0 * (iSum + 1) - (rho1 + kappa * rho2)) / (kappa + 1.0);
if (tetan < 0.0) { tetan = 0.0; }
Float_t aux = 1.0 / (rho1 + tetan) - 1.0 / (rho2 + tetan);
sum += tetan * (aux * aux) * (1.0 - TMath::Cos(rho1 + tetan));
@@ -914,8 +717,7 @@ Int_t CbmTrdRadiator::TRspectrum() {
Float_t energykeV = energyeV * 0.001;
// dN / domega
- Float_t wn =
- kAlpha * 4.0 / (fSigma[iBin] * (kappa + 1.0)) * conv * sum / energykeV;
+ Float_t wn = kAlpha * 4.0 / (fSigma[iBin] * (kappa + 1.0)) * conv * sum / energykeV;
/*
wn = 4.0 * kAlpha
/ (energykeV * (kappa + 1.0))
@@ -941,7 +743,8 @@ Int_t CbmTrdRadiator::TRspectrum() {
//------------------------------------------------------------------
//----- WinTRspectrum -----------------------------------------------
-Int_t CbmTrdRadiator::WinTRspectrum() {
+Int_t CbmTrdRadiator::WinTRspectrum()
+{
//
// Computes the spectrum after absorption in Mylar foil
//
@@ -954,9 +757,8 @@ Int_t CbmTrdRadiator::WinTRspectrum() {
for (Int_t iBin = 0; iBin < fSpNBins; iBin++) {
Float_t sp = 0;
- if (fFirstPass == true) {
- sp = fSpectrum->GetBinContent(iBin + 1);
- } else {
+ if (fFirstPass == true) { sp = fSpectrum->GetBinContent(iBin + 1); }
+ else {
sp = fDetSpectrum->GetBinContent(iBin + 1);
}
// compute the absorption coefficient
@@ -978,7 +780,8 @@ Int_t CbmTrdRadiator::WinTRspectrum() {
//----------------------------------------------------------------------------
//----- DetTRspectrum ------------------------------------------------
-Int_t CbmTrdRadiator::DetTRspectrum() {
+Int_t CbmTrdRadiator::DetTRspectrum()
+{
//
// Computes the spectrum absorbed and passed in the gas mixture
//
@@ -1019,7 +822,8 @@ Int_t CbmTrdRadiator::DetTRspectrum() {
//----------------------------------------------------------------------------
//----- Gamma factor--------------------------------------------------
-Float_t CbmTrdRadiator::GammaF() {
+Float_t CbmTrdRadiator::GammaF()
+{
// put this in the header ?
Float_t massE = 5.1099907e-4; // GeV/c2
@@ -1032,7 +836,8 @@ Float_t CbmTrdRadiator::GammaF() {
//----------------------------------------------------------------------------
//----- SetSigma---------------------------------------------------------
-void CbmTrdRadiator::SetSigma(Int_t SigmaT) {
+void CbmTrdRadiator::SetSigma(Int_t SigmaT)
+{
//
// Sets the absorbtion crosssection for the energies of the TR spectrum
//
@@ -1068,7 +873,8 @@ void CbmTrdRadiator::SetSigma(Int_t SigmaT) {
//----------------------------------------------------------------------------
//----- Sigma-------------------------------------------------------------
-Float_t CbmTrdRadiator::Sigma(Float_t energykeV) {
+Float_t CbmTrdRadiator::Sigma(Float_t energykeV)
+{
//
// Calculates the absorbtion crosssection for a one-foil-one-gap-radiator
//
@@ -1077,8 +883,7 @@ Float_t CbmTrdRadiator::Sigma(Float_t energykeV) {
Float_t energyMeV = energykeV * 0.001;
Float_t foil = 0.0;
- if (fFoilMaterial == "polyethylen")
- foil = GetMuPo(energyMeV) * fFoilDens * fFoilThickCorr;
+ if (fFoilMaterial == "polyethylen") foil = GetMuPo(energyMeV) * fFoilDens * fFoilThickCorr;
else if (fFoilMaterial == "pefoam20")
foil = GetMuPo(energyMeV) * fFoilDens * fFoilThickCorr;
else if (fFoilMaterial == "pefiber")
@@ -1094,40 +899,42 @@ Float_t CbmTrdRadiator::Sigma(Float_t energykeV) {
if (energyMeV >= 0.001) {
Float_t result = (foil + (GetMuAir(energyMeV) * fGapDens * fGapThickCorr));
return result;
- } else {
+ }
+ else {
return 1e6;
}
}
//----------------------------------------------------------------------------
//----- SigmaWin -------------------------------------------------------
-Float_t CbmTrdRadiator::SigmaWin(Float_t energykeV) {
+Float_t CbmTrdRadiator::SigmaWin(Float_t energykeV)
+{
//
// Calculates the absorbtion crosssection for a one-foil
//
// keV -> MeV
Float_t energyMeV = energykeV * 0.001;
- //if (fWindowFoil=="Kapton"){
- //if (energyMeV >= 0.001) {
- //return((GetMuKa(energyMeV) * fWinDens * fWinThick) + (GetMuAl(energyMeV) * 2.70/*[g/cm^3]*/ * 5E-6/*[cm]*/));
- //}
- // else {
- // return 1e6;
- // }
- // }
- // else {
if (energyMeV >= 0.001) {
- return (GetMuMy(energyMeV) * fWinDens * fWinThick);
- } else {
- return 1e6;
+ if (fWindowFoil == "Kapton") // aluminized kapton
+ return GetMuKa(energyMeV) * fWinDens * fWinThick + GetMuAl(energyMeV) * 2.70 /*[g/cm^3]*/ * 5E-6 /*[cm]*/;
+ else if (fWindowFoil == "Mylar") // mylar foil
+ return GetMuMy(energyMeV) * fWinDens * fWinThick;
+ else { // general sandwich structure
+ Float_t sigma(0.);
+ for (Int_t iwin(0); iwin < WINDOW.fN; iwin++)
+ sigma += WINDOW.GetMu[iwin](energyMeV) * WINDOW.fDens[iwin] * WINDOW.fThick[iwin];
+ return sigma;
+ }
}
- // }
+ else
+ return 1e6;
}
//----------------------------------------------------------------------------
//----- SigmaDet --------------------------------------------------------
-Float_t CbmTrdRadiator::SigmaDet(Float_t energykeV) {
+Float_t CbmTrdRadiator::SigmaDet(Float_t energykeV)
+{
//
//Calculates the absorbtion crosssection for a choosed gas
//
@@ -1141,257 +948,106 @@ Float_t CbmTrdRadiator::SigmaDet(Float_t energykeV) {
// Values are from http://pdg.lbl.gov/AtomicNuclearProperties/
// return(GetMuCO2(energyMeV) * 0.001806 * fGasThick * fCom1 +
// GetMuXe(energyMeV) * 0.00589 * fGasThick * fCom2);
- return (GetMuCO2(energyMeV) * 0.00184 * fGasThick * fCom1
- + GetMuXe(energyMeV) * 0.00549 * fGasThick * fCom2);
- } else {
+ return (GetMuCO2(energyMeV) * 0.00184 * fGasThick * fCom1 + GetMuXe(energyMeV) * 0.00549 * fGasThick * fCom2);
+ }
+ else {
return 1e6;
}
}
//----------------------------------------------------------------------------
//----- GetMuPok --------------------------------------------------------
-Float_t CbmTrdRadiator::GetMuPok(Float_t energyMeV) {
+Float_t CbmTrdRadiator::GetMuPok(Float_t energyMeV)
+{
//
// Returns the photon absorbtion cross section for pokalon N470
//
- const Int_t kN = 46;
- Float_t en[kN] = {
- 1.000E-03, 1.500E-03, 2.000E-03, 3.000E-03, 4.000E-03, 5.000E-03, 6.000E-03,
- 8.000E-03, 1.000E-02, 1.500E-02, 2.000E-02, 3.000E-02, 4.000E-02, 5.000E-02,
- 6.000E-02, 8.000E-02, 1.000E-01, 1.500E-01, 2.000E-01, 3.000E-01, 4.000E-01,
- 5.000E-01, 6.000E-01, 8.000E-01, 1.000E+00, 1.022E+00, 1.250E+00, 1.500E+00,
- 2.000E+00, 2.044E+00, 3.000E+00, 4.000E+00, 5.000E+00, 6.000E+00, 7.000E+00,
- 8.000E+00, 9.000E+00, 1.000E+01, 1.100E+01, 1.200E+01, 1.300E+01, 1.400E+01,
- 1.500E+01, 1.600E+01, 1.800E+01, 2.000E+01};
- Float_t mu[kN] = {
- 2.537E+03, 8.218E+02, 3.599E+02, 1.093E+02, 4.616E+01, 2.351E+01, 1.352E+01,
- 5.675E+00, 2.938E+00, 9.776E-01, 5.179E-01, 2.847E-01, 2.249E-01, 2.003E-01,
- 1.866E-01, 1.705E-01, 1.600E-01, 1.422E-01, 1.297E-01, 1.125E-01, 1.007E-01,
- 9.193E-02, 8.501E-02, 7.465E-02, 6.711E-02, 6.642E-02, 6.002E-02, 5.463E-02,
- 4.686E-02, 4.631E-02, 3.755E-02, 3.210E-02, 2.851E-02, 2.597E-02, 2.409E-02,
- 2.263E-02, 2.149E-02, 2.056E-02, 1.979E-02, 1.916E-02, 1.862E-02, 1.816E-02,
- 1.777E-02, 1.743E-02, 1.687E-02, 1.644E-02};
- return Interpolate(energyMeV, en, mu, kN);
+ return Interpolate(energyMeV, fEn_pok, fMu_pok, fKN_pok);
}
//----------------------------------------------------------------------------
//----- GetMuKa --------------------------------------------------------
-Float_t CbmTrdRadiator::GetMuKa(Float_t energyMeV) {
+Float_t CbmTrdRadiator::GetMuKa(Float_t energyMeV)
+{
//
// Returns the photon absorbtion cross section for kapton
//
- const Int_t kN = 46;
- Float_t en[kN] = {
- 1.000E-03, 1.500E-03, 2.000E-03, 3.000E-03, 4.000E-03, 5.000E-03, 6.000E-03,
- 8.000E-03, 1.000E-02, 1.500E-02, 2.000E-02, 3.000E-02, 4.000E-02, 5.000E-02,
- 6.000E-02, 8.000E-02, 1.000E-01, 1.500E-01, 2.000E-01, 3.000E-01, 4.000E-01,
- 5.000E-01, 6.000E-01, 8.000E-01, 1.000E+00, 1.022E+00, 1.250E+00, 1.500E+00,
- 2.000E+00, 2.044E+00, 3.000E+00, 4.000E+00, 5.000E+00, 6.000E+00, 7.000E+00,
- 8.000E+00, 9.000E+00, 1.000E+01, 1.100E+01, 1.200E+01, 1.300E+01, 1.400E+01,
- 1.500E+01, 1.600E+01, 1.800E+01, 2.000E+01};
- Float_t mu[kN] = {
- 2.731E+03, 8.875E+02, 3.895E+02, 1.185E+02, 5.013E+01, 2.555E+01, 1.470E+01,
- 6.160E+00, 3.180E+00, 1.043E+00, 5.415E-01, 2.880E-01, 2.235E-01, 1.973E-01,
- 1.830E-01, 1.666E-01, 1.560E-01, 1.385E-01, 1.263E-01, 1.095E-01, 9.799E-02,
- 8.944E-02, 8.270E-02, 7.262E-02, 6.529E-02, 6.462E-02, 5.839E-02, 5.315E-02,
- 4.561E-02, 4.507E-02, 3.659E-02, 3.133E-02, 2.787E-02, 2.543E-02, 2.362E-02,
- 2.223E-02, 2.114E-02, 2.025E-02, 1.953E-02, 1.893E-02, 1.842E-02, 1.799E-02,
- 1.762E-02, 1.730E-02, 1.678E-02, 1.638E-02};
- return Interpolate(energyMeV, en, mu, kN);
+ return Interpolate(energyMeV, fEn_ka, fMu_ka, fKN_ka);
}
//----------------------------------------------------------------------------
//----- GetMuAl --------------------------------------------------------
-Float_t CbmTrdRadiator::GetMuAl(Float_t energyMeV) {
+Float_t CbmTrdRadiator::GetMuAl(Float_t energyMeV)
+{
//
// Returns the photon absorbtion cross section for Al
//
-
- const Int_t kN = 48;
-
- Float_t en[kN] = {
- 1.000E-03, 1.500E-03, 1.560E-03, 1.560E-03, 2.000E-03, 3.000E-03, 4.000E-03,
- 5.000E-03, 6.000E-03, 8.000E-03, 1.000E-02, 1.500E-02, 2.000E-02, 3.000E-02,
- 4.000E-02, 5.000E-02, 6.000E-02, 8.000E-02, 1.000E-01, 1.500E-01, 2.000E-01,
- 3.000E-01, 4.000E-01, 5.000E-01, 6.000E-01, 8.000E-01, 1.000E+00, 1.022E+00,
- 1.250E+00, 1.500E+00, 2.000E+00, 2.044E+00, 3.000E+00, 4.000E+00, 5.000E+00,
- 6.000E+00, 7.000E+00, 8.000E+00, 9.000E+00, 1.000E+01, 1.100E+01, 1.200E+01,
- 1.300E+01, 1.400E+01, 1.500E+01, 1.600E+01, 1.800E+01, 2.000E+01};
-
- Float_t mu[kN] = {
- 1.185E+03, 4.023E+02, 3.621E+02, 3.957E+03, 2.263E+03, 7.881E+02, 3.605E+02,
- 1.934E+02, 1.153E+02, 5.032E+01, 2.621E+01, 7.955E+00, 3.442E+00, 1.128E+00,
- 5.684E-01, 3.681E-01, 2.778E-01, 2.018E-01, 1.704E-01, 1.378E-01, 1.223E-01,
- 1.042E-01, 9.276E-02, 8.445E-02, 7.802E-02, 6.841E-02, 6.146E-02, 6.080E-02,
- 5.496E-02, 5.006E-02, 4.324E-02, 4.277E-02, 3.541E-02, 3.106E-02, 2.836E-02,
- 2.655E-02, 2.529E-02, 2.437E-02, 2.369E-02, 2.318E-02, 2.279E-02, 2.249E-02,
- 2.226E-02, 2.208E-02, 2.195E-02, 2.185E-02, 2.173E-02, 2.168E-02};
-
- return Interpolate(energyMeV, en, mu, kN);
+ return Interpolate(energyMeV, fEn_al, fMu_al, fKN_al);
}
//----------------------------------------------------------------------------
+//----- GetMuC --------------------------------------------------------
+Float_t CbmTrdRadiator::GetMuC(Float_t energyMeV)
+{
+ //
+ // Returns the photon absorbtion cross section for Carbon
+ //
+ return Interpolate(energyMeV, fEn_c, fMu_c, fKN_c);
+}
+//----------------------------------------------------------------------------
//----- GetMuPo --------------------------------------------------------
-Float_t CbmTrdRadiator::GetMuPo(Float_t energyMeV) {
+Float_t CbmTrdRadiator::GetMuPo(Float_t energyMeV)
+{
//
// Returns the photon absorbtion cross section for polypropylene
//
-
- const Int_t kN = 36;
-
- Float_t mu[kN] = {
- 1.894E+03, 5.999E+02, 2.593E+02, 7.743E+01, 3.242E+01, 1.643E+01,
- 9.432E+00, 3.975E+00, 2.088E+00, 7.452E-01, 4.315E-01, 2.706E-01,
- 2.275E-01, 2.084E-01, 1.970E-01, 1.823E-01, 1.719E-01, 1.534E-01,
- 1.402E-01, 1.217E-01, 1.089E-01, 9.947E-02, 9.198E-02, 8.078E-02,
- 7.262E-02, 6.495E-02, 5.910E-02, 5.064E-02, 4.045E-02, 3.444E-02,
- 3.045E-02, 2.760E-02, 2.383E-02, 2.145E-02, 1.819E-02, 1.658E-02};
-
- Float_t en[kN] = {
- 1.000E-03, 1.500E-03, 2.000E-03, 3.000E-03, 4.000E-03, 5.000E-03,
- 6.000E-03, 8.000E-03, 1.000E-02, 1.500E-02, 2.000E-02, 3.000E-02,
- 4.000E-02, 5.000E-02, 6.000E-02, 8.000E-02, 1.000E-01, 1.500E-01,
- 2.000E-01, 3.000E-01, 4.000E-01, 5.000E-01, 6.000E-01, 8.000E-01,
- 1.000E+00, 1.250E+00, 1.500E+00, 2.000E+00, 3.000E+00, 4.000E+00,
- 5.000E+00, 6.000E+00, 8.000E+00, 1.000E+01, 1.500E+01, 2.000E+01};
-
- return Interpolate(energyMeV, en, mu, kN);
+ return Interpolate(energyMeV, fEn_po, fMu_po, fKN_po);
}
//----------------------------------------------------------------------------
//----- GetMuAir --------------------------------------------------------
-Float_t CbmTrdRadiator::GetMuAir(Float_t energyMeV) {
+Float_t CbmTrdRadiator::GetMuAir(Float_t energyMeV)
+{
//
// Returns the photon absorbtion cross section for Air
//
-
- const Int_t kN = 38;
-
-
- Float_t mu[kN] = {
- 0.35854E+04, 0.11841E+04, 0.52458E+03, 0.16143E+03, 0.15722E+03,
- 0.14250E+03, 0.77538E+02, 0.40099E+02, 0.23313E+02, 0.98816E+01,
- 0.51000E+01, 0.16079E+01, 0.77536E+00, 0.35282E+00, 0.24790E+00,
- 0.20750E+00, 0.18703E+00, 0.16589E+00, 0.15375E+00, 0.13530E+00,
- 0.12311E+00, 0.10654E+00, 0.95297E-01, 0.86939E-01, 0.80390E-01,
- 0.70596E-01, 0.63452E-01, 0.56754E-01, 0.51644E-01, 0.44382E-01,
- 0.35733E-01, 0.30721E-01, 0.27450E-01, 0.25171E-01, 0.22205E-01,
- 0.20399E-01, 0.18053E-01, 0.18057E-01};
-
- Float_t en[kN] = {
- 0.10000E-02, 0.15000E-02, 0.20000E-02, 0.30000E-02, 0.32029E-02,
- 0.32029E-02, 0.40000E-02, 0.50000E-02, 0.60000E-02, 0.80000E-02,
- 0.10000E-01, 0.15000E-01, 0.20000E-01, 0.30000E-01, 0.40000E-01,
- 0.50000E-01, 0.60000E-01, 0.80000E-01, 0.10000E+00, 0.15000E+00,
- 0.20000E+00, 0.30000E+00, 0.40000E+00, 0.50000E+00, 0.60000E+00,
- 0.80000E+00, 0.10000E+01, 0.12500E+01, 0.15000E+01, 0.20000E+01,
- 0.30000E+01, 0.40000E+01, 0.50000E+01, 0.60000E+01, 0.80000E+01,
- 0.10000E+02, 0.15000E+02, 0.20000E+02};
-
- return Interpolate(energyMeV, en, mu, kN);
+ return Interpolate(energyMeV, fEn_air, fMu_air, fKN_air);
}
//----------------------------------------------------------------------------
//----- GetMuXe --------------------------------------------------------
-Float_t CbmTrdRadiator::GetMuXe(Float_t energyMeV) {
+Float_t CbmTrdRadiator::GetMuXe(Float_t energyMeV)
+{
//
// Returns the photon absorbtion cross section for xenon
//
-
- const Int_t kN = 48;
-
- Float_t mu[kN] = {
- 9.413E+03, 8.151E+03, 7.035E+03, 7.338E+03, 4.085E+03, 2.088E+03, 7.780E+02,
- 3.787E+02, 2.408E+02, 6.941E+02, 6.392E+02, 6.044E+02, 8.181E+02, 7.579E+02,
- 6.991E+02, 8.064E+02, 6.376E+02, 3.032E+02, 1.690E+02, 5.743E+01, 2.652E+01,
- 8.930E+00, 6.129E+00, 3.316E+01, 2.270E+01, 1.272E+01, 7.825E+00, 3.633E+00,
- 2.011E+00, 7.202E-01, 3.760E-01, 1.797E-01, 1.223E-01, 9.699E-02, 8.281E-02,
- 6.696E-02, 5.785E-02, 5.054E-02, 4.594E-02, 4.078E-02, 3.681E-02, 3.577E-02,
- 3.583E-02, 3.634E-02, 3.797E-02, 3.987E-02, 4.445E-02, 4.815E-02};
-
- Float_t en[kN] = {
- 1.00000E-03, 1.07191E-03, 1.14900E-03, 1.14900E-03, 1.50000E-03,
- 2.00000E-03, 3.00000E-03, 4.00000E-03, 4.78220E-03, 4.78220E-03,
- 5.00000E-03, 5.10370E-03, 5.10370E-03, 5.27536E-03, 5.45280E-03,
- 5.45280E-03, 6.00000E-03, 8.00000E-03, 1.00000E-02, 1.50000E-02,
- 2.00000E-02, 3.00000E-02, 3.45614E-02, 3.45614E-02, 4.00000E-02,
- 5.00000E-02, 6.00000E-02, 8.00000E-02, 1.00000E-01, 1.50000E-01,
- 2.00000E-01, 3.00000E-01, 4.00000E-01, 5.00000E-01, 6.00000E-01,
- 8.00000E-01, 1.00000E+00, 1.25000E+00, 1.50000E+00, 2.00000E+00,
- 3.00000E+00, 4.00000E+00, 5.00000E+00, 6.00000E+00, 8.00000E+00,
- 1.00000E+01, 1.50000E+01, 2.00000E+01};
-
- return Interpolate(energyMeV, en, mu, kN);
+ return Interpolate(energyMeV, fEn_xe, fMu_xe, fKN_xe);
}
//----------------------------------------------------------------------------
//----- GetMuCO2 ------------------------------------------------------
-Float_t CbmTrdRadiator::GetMuCO2(Float_t energyMeV) {
+Float_t CbmTrdRadiator::GetMuCO2(Float_t energyMeV)
+{
//
// Returns the photon absorbtion cross section for CO2
//
-
- const Int_t kN = 36;
-
- Float_t mu[kN] = {0.39383E+04, 0.13166E+04, 0.58750E+03, 0.18240E+03,
- 0.77996E+02, 0.40024E+02, 0.23116E+02, 0.96997E+01,
- 0.49726E+01, 0.15543E+01, 0.74915E+00, 0.34442E+00,
- 0.24440E+00, 0.20589E+00, 0.18632E+00, 0.16578E+00,
- 0.15394E+00, 0.13558E+00, 0.12336E+00, 0.10678E+00,
- 0.95510E-01, 0.87165E-01, 0.80587E-01, 0.70769E-01,
- 0.63626E-01, 0.56894E-01, 0.51782E-01, 0.44499E-01,
- 0.35839E-01, 0.30825E-01, 0.27555E-01, 0.25269E-01,
- 0.22311E-01, 0.20516E-01, 0.18184E-01, 0.17152E-01};
-
- Float_t en[kN] = {0.10000E-02, 0.15000E-02, 0.20000E-02, 0.30000E-02,
- 0.40000E-02, 0.50000E-02, 0.60000E-02, 0.80000E-02,
- 0.10000E-01, 0.15000E-01, 0.20000E-01, 0.30000E-01,
- 0.40000E-01, 0.50000E-01, 0.60000E-01, 0.80000E-01,
- 0.10000E+00, 0.15000E+00, 0.20000E+00, 0.30000E+00,
- 0.40000E+00, 0.50000E+00, 0.60000E+00, 0.80000E+00,
- 0.10000E+01, 0.12500E+01, 0.15000E+01, 0.20000E+01,
- 0.30000E+01, 0.40000E+01, 0.50000E+01, 0.60000E+01,
- 0.80000E+01, 0.10000E+02, 0.15000E+02, 0.20000E+02};
-
- return Interpolate(energyMeV, en, mu, kN);
+ return Interpolate(energyMeV, fEn_co2, fMu_co2, fKN_co2);
}
//----------------------------------------------------------------------------
//----- GetMuMy -------------------------------------------------------
-Float_t CbmTrdRadiator::GetMuMy(Float_t energyMeV) {
+Float_t CbmTrdRadiator::GetMuMy(Float_t energyMeV)
+{
//
// Returns the photon absorbtion cross section for mylar
//
-
- const Int_t kN = 36;
-
- Float_t mu[kN] = {
- 2.911E+03, 9.536E+02, 4.206E+02, 1.288E+02, 5.466E+01, 2.792E+01,
- 1.608E+01, 6.750E+00, 3.481E+00, 1.132E+00, 5.798E-01, 3.009E-01,
- 2.304E-01, 2.020E-01, 1.868E-01, 1.695E-01, 1.586E-01, 1.406E-01,
- 1.282E-01, 1.111E-01, 9.947E-02, 9.079E-02, 8.395E-02, 7.372E-02,
- 6.628E-02, 5.927E-02, 5.395E-02, 4.630E-02, 3.715E-02, 3.181E-02,
- 2.829E-02, 2.582E-02, 2.257E-02, 2.057E-02, 1.789E-02, 1.664E-02};
-
- Float_t en[kN] = {1.00000E-03, 1.50000E-03, 2.00000E-03, 3.00000E-03,
- 4.00000E-03, 5.00000E-03, 6.00000E-03, 8.00000E-03,
- 1.00000E-02, 1.50000E-02, 2.00000E-02, 3.00000E-02,
- 4.00000E-02, 5.00000E-02, 6.00000E-02, 8.00000E-02,
- 1.00000E-01, 1.50000E-01, 2.00000E-01, 3.00000E-01,
- 4.00000E-01, 5.00000E-01, 6.00000E-01, 8.00000E-01,
- 1.00000E+00, 1.25000E+00, 1.50000E+00, 2.00000E+00,
- 3.00000E+00, 4.00000E+00, 5.00000E+00, 6.00000E+00,
- 8.00000E+00, 1.00000E+01, 1.50000E+01, 2.00000E+01};
-
- return Interpolate(energyMeV, en, mu, kN);
+ return Interpolate(energyMeV, fEn_my, fMu_my, fKN_my);
}
//----------------------------------------------------------------------------
//----- Interpolate ------------------------------------------------------
-Float_t CbmTrdRadiator::Interpolate(Float_t energyMeV,
- Float_t* en,
- Float_t* mu,
- Int_t n) {
+Float_t CbmTrdRadiator::Interpolate(Float_t energyMeV, const Float_t* en, const Float_t* mu, Int_t n)
+{
//
// Interpolates the photon absorbtion cross section
// for a given energy <energyMeV>.
@@ -1401,22 +1057,22 @@ Float_t CbmTrdRadiator::Interpolate(Float_t energyMeV,
Int_t index = 0;
Int_t istat = Locate(en, n, energyMeV, index, de);
if (istat == 0) {
+ // Float_t result = (mu[index] - de * (mu[index] - mu[index+1])
+ // / (en[index+1] - en[index] ));
+ // return result;
Float_t result =
- (mu[index]
- - de * (mu[index] - mu[index + 1]) / (en[index + 1] - en[index]));
- return result;
- } else {
+ (TMath::Log(mu[index]) - de * (TMath::Log(mu[index]) - TMath::Log(mu[index + 1])) / (en[index + 1] - en[index]));
+ return TMath::Exp(result);
+ }
+ else {
return 0.0;
}
}
//----------------------------------------------------------------------------
//----- Locate ------------------------------------------------------------
-Int_t CbmTrdRadiator::Locate(Float_t* xv,
- Int_t n,
- Float_t xval,
- Int_t& kl,
- Float_t& dx) {
+Int_t CbmTrdRadiator::Locate(const Float_t* xv, Int_t n, Float_t xval, Int_t& kl, Float_t& dx)
+{
//
// Locates a point (xval) in a 1-dim grid (xv(n))
//
@@ -1429,18 +1085,12 @@ Int_t CbmTrdRadiator::Locate(Float_t* xv,
kl = 0;
while (kh - kl > 1) {
- if (xval < xv[km = (kl + kh) / 2])
- kh = km;
+ if (xval < xv[km = (kl + kh) / 2]) kh = km;
else
kl = km;
}
if (xval < xv[kl] || xval > xv[kl + 1] || kl >= n - 1) {
- printf("Locate failed xv[%d] %f xval %f xv[%d] %f!!!\n",
- kl,
- xv[kl],
- xval,
- kl + 1,
- xv[kl + 1]);
+ printf("Locate failed xv[%d] %f xval %f xv[%d] %f!!!\n", kl, xv[kl], xval, kl + 1, xv[kl + 1]);
exit(1);
}
@@ -1449,6 +1099,43 @@ Int_t CbmTrdRadiator::Locate(Float_t* xv,
return 0;
}
//----------------------------------------------------------------------------
+// Photon absorption cross sections
+
+// Pokalon N470
+constexpr Float_t CbmTrdRadiator::fEn_pok[46];
+constexpr Float_t CbmTrdRadiator::fMu_pok[46];
+
+// Kapton
+constexpr Float_t CbmTrdRadiator::fEn_ka[46];
+constexpr Float_t CbmTrdRadiator::fMu_ka[46];
+
+// Aluminum
+constexpr Float_t CbmTrdRadiator::fEn_al[48];
+constexpr Float_t CbmTrdRadiator::fMu_al[48];
+
+// Polypropylene/Polyethylene
+constexpr Float_t CbmTrdRadiator::fEn_po[36];
+constexpr Float_t CbmTrdRadiator::fMu_po[36];
+
+// Carbon
+constexpr Float_t CbmTrdRadiator::fEn_c[46];
+constexpr Float_t CbmTrdRadiator::fMu_c[46];
+
+// Air
+constexpr Float_t CbmTrdRadiator::fEn_air[38];
+constexpr Float_t CbmTrdRadiator::fMu_air[38];
+
+// Xenon
+constexpr Float_t CbmTrdRadiator::fEn_xe[48];
+constexpr Float_t CbmTrdRadiator::fMu_xe[48];
+
+// CO2
+constexpr Float_t CbmTrdRadiator::fEn_co2[36];
+constexpr Float_t CbmTrdRadiator::fMu_co2[36];
+
+// Mylar
+constexpr Float_t CbmTrdRadiator::fEn_my[36];
+constexpr Float_t CbmTrdRadiator::fMu_my[36];
ClassImp(CbmTrdRadiator)
diff --git a/core/detectors/trd/CbmTrdRadiator.h b/core/detectors/trd/CbmTrdRadiator.h
index 08d55b6c2470f5a5c59524cda18375cc9b5e8e8b..b2f1f2c4dffa608c3bb3187d7fe46144174b5d37 100644
--- a/core/detectors/trd/CbmTrdRadiator.h
+++ b/core/detectors/trd/CbmTrdRadiator.h
@@ -12,6 +12,7 @@
#ifndef CBMTRDRADIATOR_H
#define CBMTRDRADIATOR_H
+#define NCOMPONENTS 10
#include <Rtypes.h> // for THashConsistencyHolder, ClassDef
#include <RtypesCore.h> // for Float_t, Int_t, Bool_t, Double_t
@@ -20,44 +21,39 @@
class CbmTrdPoint;
class TH1D;
-
+typedef Float_t (*GetMuPtr)(Float_t);
class CbmTrdRadiator {
public:
+ struct CbmTrdEntranceWindow {
+ CbmTrdEntranceWindow(TString def = "");
+ Bool_t Init(TString def);
+
+ Int_t fN; // no of components
+ TString fMat[NCOMPONENTS]; // components' names
+ Float_t fThick[NCOMPONENTS]; // thickness [cm] of window components
+ Float_t fDens[NCOMPONENTS]; // density [g/cm^3] of window components
+ GetMuPtr GetMu[NCOMPONENTS]; // array of mu=f(E) for each component
+ };
+
/** Default constructor **/
- CbmTrdRadiator();
-
- /** Constructor **/
- CbmTrdRadiator(Bool_t SimpleTR,
- Int_t Nfoils,
- Float_t FoilThick,
- Float_t GapThick);
-
- /** Constructor **/
- CbmTrdRadiator(Bool_t SimpleTR,
- Int_t Nfoils,
- Float_t FoilThick,
- Float_t GapThick,
- TString material,
- TString prototype);
-
- /** Constructor 20.02.2013 to include external files with tr-spectra**/
- CbmTrdRadiator(Bool_t SimpleTR, TString prototype);
+ CbmTrdRadiator(Bool_t SimpleTR = true, Int_t Nfoils = 337, Float_t FoilThick = 0.0012, Float_t GapThick = 0.09,
+ TString material = "pefoam20", TString window = "Kapton");
+
+ /** Constructor using predefined radiator prototype **/
+ CbmTrdRadiator(Bool_t SimpleTR, TString prototype, TString window = "Kapton");
/* // implemented prototypes are:
- "A" ALICE like 7xfiber layer + 2x8mm Rohacell layer
- "Bshort" POKALON 24µm, 0.7mm gap, 100 foils
- "B" POKALON 24µm, 0.7mm gap, 250 foils
+ "tdr18" 153x2mm PE foam foil layer (146 layers in box, 7 layers in carbon grid)
"B++" POKALON 24µm, 0.7mm gap, 350 foils
- "C" PE 15µm, 0.7mm gap, 200 foils
- "D" PE 15µm, 0.5mm gap, 100 foils
- "E" PE 20µm, 0.5mm gap, 120 foils
- "F" PE 20µm, 0.25mm gap, 220 foils
- "G30" 30xfiber layer
- "H" 125x2mm PE foam foil layer
- "H++" 177x2mm PE foam foil layer
- "Kshort" POKALON 24µm, 0.7mm gap, 100 foils micro-structured
- "K" POKALON 24µm, 0.7mm gap, 250 foils micro-structured
"K++" POKALON 24µm, 0.7mm gap, 350 foils micro-structured
+ "G30" 30xfiber layer
+
+
+ For the entrance window the general syntax would be c0;c1;c2;...
+ where ci are planar components. e.g. Al;C;Air;C;Al is the TRD-2D sandwich
+ There are two shortcuts for the Munster detector namely:
+ "Mylar" - simple mylar window
+ "Kapton" - Al(50nm)kapton(25µm )
*/
/** Destructor **/
@@ -66,19 +62,9 @@ public:
/** Create the needed histograms **/
void CreateHistograms();
- /** Init function **/
- void Init(Bool_t SimpleTR,
- Int_t Nfoils,
- Float_t FoilThick,
- Float_t GapTick,
- TString material);
- /** Init function **/
- void Init(Bool_t SimpleTR, Int_t Nfoils, Float_t FoilThick, Float_t GapThick);
/** Init function **/
void Init();
- // void SetRadPrototype(TString prototype);
-
/** Spectra production **/
void ProduceSpectra();
@@ -112,23 +98,24 @@ public:
TString fWindowFoil;
/** Computation of photon absorption cross sections taken from http://physics.nist.gov/PhysRefData/Xcom/html/xcom1.html**/
- Float_t GetMuAl(Float_t energyMeV);
- Float_t GetMuPo(Float_t energyMeV);
- Float_t GetMuPok(Float_t energyMeV);
- Float_t GetMuKa(Float_t energyMeV);
- Float_t GetMuAir(Float_t energyMeV);
- Float_t GetMuXe(Float_t energyMeV);
- Float_t GetMuCO2(Float_t energyMeV);
- Float_t GetMuMy(Float_t energyMeV);
+ static Float_t GetMuAl(Float_t energyMeV);
+ static Float_t GetMuPo(Float_t energyMeV);
+ static Float_t GetMuPok(Float_t energyMeV);
+ static Float_t GetMuKa(Float_t energyMeV);
+ static Float_t GetMuAir(Float_t energyMeV);
+ static Float_t GetMuXe(Float_t energyMeV);
+ static Float_t GetMuCO2(Float_t energyMeV);
+ static Float_t GetMuMy(Float_t energyMeV);
+ static Float_t GetMuC(Float_t energyMeV);
/** Calculate the TR for a given momentum **/
Float_t GetTR(TVector3 mom);
/** Interpolate between given points of table **/
- Float_t Interpolate(Float_t energyMeV, Float_t* en, Float_t* mu, Int_t n);
+ static Float_t Interpolate(Float_t energyMeV, const Float_t* en, const Float_t* mu, Int_t n);
/** Locate a point in 1-dim grid **/
- Int_t Locate(Float_t* xv, Int_t n, Float_t xval, Int_t& kl, Float_t& dx);
+ static Int_t Locate(const Float_t* xv, Int_t n, Float_t xval, Int_t& kl, Float_t& dx);
/** Setters for private data memebers **/
@@ -136,6 +123,8 @@ public:
void SetFoilThick(Float_t t) { fFoilThick = t; }
void SetGapThick(Float_t t) { fGapThick = t; }
void SetSigma(Int_t SigmaT);
+ /** define plane-parallel Entrance Window section in [cm] **/
+ void SetEWwidths(Int_t n, Float_t* w);
Bool_t LatticeHit(const CbmTrdPoint* point);
@@ -152,7 +141,7 @@ private:
Float_t fFoilThick; // Thickness of the foils (cm)
Float_t fGapThick; // Thickness of gaps between the foils (cm)
TString fFoilMaterial;
- Float_t fGasThick; // Thickness of hte active gas volume.
+ Float_t fGasThick; // Thickness of the active gas volume.
/* Parameters fixed in Init() */
@@ -175,6 +164,7 @@ private:
Float_t fWinDens;
Float_t fWinThick;
+ CbmTrdEntranceWindow WINDOW; // generic window structure
Float_t fCom1; // first component of the gas
Float_t fCom2; // second component of the gas
@@ -183,10 +173,8 @@ private:
static const Int_t fSpRange = 50; // Maximum (keV) of eloss spectrum
Float_t fSpBinWidth; // Bin width=fSpNBins/fSpRange
- Float_t*
- fSigma; //! [fSpNBins] Array of sigma values for the foil of the radiator
- Float_t*
- fSigmaWin; //! [fSpNBins] Array of sigma values for the entrance window of detector
+ Float_t* fSigma; //! [fSpNBins] Array of sigma values for the foil of the radiator
+ Float_t* fSigmaWin; //! [fSpNBins] Array of sigma values for the entrance window of detector
Float_t* fSigmaDet; //! [fSpNBins] Array of sigma values for the active gas
TH1D* fSpectrum; //! TR photon energy spectrum
@@ -206,7 +194,140 @@ private:
TVector3 fMom; // momentum of the electron
- ClassDef(CbmTrdRadiator, 1)
+ /* Photon absorption cross section for pokalon N470 */
+ static const Int_t fKN_pok = 46;
+ static constexpr Float_t fEn_pok[46] = {
+ 1.000E-03, 1.500E-03, 2.000E-03, 3.000E-03, 4.000E-03, 5.000E-03, 6.000E-03, 8.000E-03, 1.000E-02, 1.500E-02,
+ 2.000E-02, 3.000E-02, 4.000E-02, 5.000E-02, 6.000E-02, 8.000E-02, 1.000E-01, 1.500E-01, 2.000E-01, 3.000E-01,
+ 4.000E-01, 5.000E-01, 6.000E-01, 8.000E-01, 1.000E+00, 1.022E+00, 1.250E+00, 1.500E+00, 2.000E+00, 2.044E+00,
+ 3.000E+00, 4.000E+00, 5.000E+00, 6.000E+00, 7.000E+00, 8.000E+00, 9.000E+00, 1.000E+01, 1.100E+01, 1.200E+01,
+ 1.300E+01, 1.400E+01, 1.500E+01, 1.600E+01, 1.800E+01, 2.000E+01};
+ static constexpr Float_t fMu_pok[46] = {
+ 2.537E+03, 8.218E+02, 3.599E+02, 1.093E+02, 4.616E+01, 2.351E+01, 1.352E+01, 5.675E+00, 2.938E+00, 9.776E-01,
+ 5.179E-01, 2.847E-01, 2.249E-01, 2.003E-01, 1.866E-01, 1.705E-01, 1.600E-01, 1.422E-01, 1.297E-01, 1.125E-01,
+ 1.007E-01, 9.193E-02, 8.501E-02, 7.465E-02, 6.711E-02, 6.642E-02, 6.002E-02, 5.463E-02, 4.686E-02, 4.631E-02,
+ 3.755E-02, 3.210E-02, 2.851E-02, 2.597E-02, 2.409E-02, 2.263E-02, 2.149E-02, 2.056E-02, 1.979E-02, 1.916E-02,
+ 1.862E-02, 1.816E-02, 1.777E-02, 1.743E-02, 1.687E-02, 1.644E-02};
+
+ /* Photon absorption cross section for kapton */
+ static const Int_t fKN_ka = 46;
+ static constexpr Float_t fEn_ka[46] = {
+ 1.000E-03, 1.500E-03, 2.000E-03, 3.000E-03, 4.000E-03, 5.000E-03, 6.000E-03, 8.000E-03, 1.000E-02, 1.500E-02,
+ 2.000E-02, 3.000E-02, 4.000E-02, 5.000E-02, 6.000E-02, 8.000E-02, 1.000E-01, 1.500E-01, 2.000E-01, 3.000E-01,
+ 4.000E-01, 5.000E-01, 6.000E-01, 8.000E-01, 1.000E+00, 1.022E+00, 1.250E+00, 1.500E+00, 2.000E+00, 2.044E+00,
+ 3.000E+00, 4.000E+00, 5.000E+00, 6.000E+00, 7.000E+00, 8.000E+00, 9.000E+00, 1.000E+01, 1.100E+01, 1.200E+01,
+ 1.300E+01, 1.400E+01, 1.500E+01, 1.600E+01, 1.800E+01, 2.000E+01};
+ static constexpr Float_t fMu_ka[46] = {
+ 2.731E+03, 8.875E+02, 3.895E+02, 1.185E+02, 5.013E+01, 2.555E+01, 1.470E+01, 6.160E+00, 3.180E+00, 1.043E+00,
+ 5.415E-01, 2.880E-01, 2.235E-01, 1.973E-01, 1.830E-01, 1.666E-01, 1.560E-01, 1.385E-01, 1.263E-01, 1.095E-01,
+ 9.799E-02, 8.944E-02, 8.270E-02, 7.262E-02, 6.529E-02, 6.462E-02, 5.839E-02, 5.315E-02, 4.561E-02, 4.507E-02,
+ 3.659E-02, 3.133E-02, 2.787E-02, 2.543E-02, 2.362E-02, 2.223E-02, 2.114E-02, 2.025E-02, 1.953E-02, 1.893E-02,
+ 1.842E-02, 1.799E-02, 1.762E-02, 1.730E-02, 1.678E-02, 1.638E-02};
+
+ /* Photon absorption cross section for aluminum */
+ static const Int_t fKN_al = 48;
+ static constexpr Float_t fEn_al[48] = {
+ 1.000E-03, 1.500E-03, 1.560E-03, 1.560E-03, 2.000E-03, 3.000E-03, 4.000E-03, 5.000E-03, 6.000E-03, 8.000E-03,
+ 1.000E-02, 1.500E-02, 2.000E-02, 3.000E-02, 4.000E-02, 5.000E-02, 6.000E-02, 8.000E-02, 1.000E-01, 1.500E-01,
+ 2.000E-01, 3.000E-01, 4.000E-01, 5.000E-01, 6.000E-01, 8.000E-01, 1.000E+00, 1.022E+00, 1.250E+00, 1.500E+00,
+ 2.000E+00, 2.044E+00, 3.000E+00, 4.000E+00, 5.000E+00, 6.000E+00, 7.000E+00, 8.000E+00, 9.000E+00, 1.000E+01,
+ 1.100E+01, 1.200E+01, 1.300E+01, 1.400E+01, 1.500E+01, 1.600E+01, 1.800E+01, 2.000E+01};
+ static constexpr Float_t fMu_al[48] = {
+ 1.185E+03, 4.023E+02, 3.621E+02, 3.957E+03, 2.263E+03, 7.881E+02, 3.605E+02, 1.934E+02, 1.153E+02, 5.032E+01,
+ 2.621E+01, 7.955E+00, 3.442E+00, 1.128E+00, 5.684E-01, 3.681E-01, 2.778E-01, 2.018E-01, 1.704E-01, 1.378E-01,
+ 1.223E-01, 1.042E-01, 9.276E-02, 8.445E-02, 7.802E-02, 6.841E-02, 6.146E-02, 6.080E-02, 5.496E-02, 5.006E-02,
+ 4.324E-02, 4.277E-02, 3.541E-02, 3.106E-02, 2.836E-02, 2.655E-02, 2.529E-02, 2.437E-02, 2.369E-02, 2.318E-02,
+ 2.279E-02, 2.249E-02, 2.226E-02, 2.208E-02, 2.195E-02, 2.185E-02, 2.173E-02, 2.168E-02};
+
+ /* Photon absorption cross section for polypropylene/polyethylene */
+ static const Int_t fKN_po = 36;
+ static constexpr Float_t fEn_po[36] = {
+ 1.000E-03, 1.500E-03, 2.000E-03, 3.000E-03, 4.000E-03, 5.000E-03, 6.000E-03, 8.000E-03, 1.000E-02,
+ 1.500E-02, 2.000E-02, 3.000E-02, 4.000E-02, 5.000E-02, 6.000E-02, 8.000E-02, 1.000E-01, 1.500E-01,
+ 2.000E-01, 3.000E-01, 4.000E-01, 5.000E-01, 6.000E-01, 8.000E-01, 1.000E+00, 1.250E+00, 1.500E+00,
+ 2.000E+00, 3.000E+00, 4.000E+00, 5.000E+00, 6.000E+00, 8.000E+00, 1.000E+01, 1.500E+01, 2.000E+01};
+ static constexpr Float_t fMu_po[36] = {
+ 1.894E+03, 5.999E+02, 2.593E+02, 7.743E+01, 3.242E+01, 1.643E+01, 9.432E+00, 3.975E+00, 2.088E+00,
+ 7.452E-01, 4.315E-01, 2.706E-01, 2.275E-01, 2.084E-01, 1.970E-01, 1.823E-01, 1.719E-01, 1.534E-01,
+ 1.402E-01, 1.217E-01, 1.089E-01, 9.947E-02, 9.198E-02, 8.078E-02, 7.262E-02, 6.495E-02, 5.910E-02,
+ 5.064E-02, 4.045E-02, 3.444E-02, 3.045E-02, 2.760E-02, 2.383E-02, 2.145E-02, 1.819E-02, 1.658E-02};
+
+ /* Photon absorption cross section for carbon */
+ static const Int_t fKN_c = 46;
+ static constexpr Float_t fEn_c[46] = {
+ 1.000E-03, 1.500E-03, 2.000E-03, 3.000E-03, 4.000E-03, 5.000E-03, 6.000E-03, 8.000E-03, 1.000E-02, 1.500E-02,
+ 2.000E-02, 3.000E-02, 4.000E-02, 5.000E-02, 6.000E-02, 8.000E-02, 1.000E-01, 1.500E-01, 2.000E-01, 3.000E-01,
+ 4.000E-01, 5.000E-01, 6.000E-01, 8.000E-01, 1.000E+00, 1.022E+00, 1.250E+00, 1.500E+00, 2.000E+00, 2.044E+00,
+ 3.000E+00, 4.000E+00, 5.000E+00, 6.000E+00, 7.000E+00, 8.000E+00, 9.000E+00, 1.000E+01, 1.100E+01, 1.200E+01,
+ 1.300E+01, 1.400E+01, 1.500E+01, 1.600E+01, 1.800E+01, 2.000E+01};
+ static constexpr Float_t fMu_c[46] = {
+ 2.211e+03, 7.004e+02, 3.026e+02, 9.032e+01, 3.778e+01, 1.912e+01, 1.095e+01, 4.576e+00, 2.373e+00, 8.074e-01,
+ 4.420e-01, 2.562e-01, 2.076e-01, 1.871e-01, 1.753e-01, 1.610e-01, 1.514e-01, 1.347e-01, 1.229e-01, 1.066e-01,
+ 9.547e-02, 8.715e-02, 8.058e-02, 7.076e-02, 6.362e-02, 6.296e-02, 5.690e-02, 5.179e-02, 4.443e-02, 4.391e-02,
+ 3.563e-02, 3.047e-02, 2.708e-02, 2.469e-02, 2.291e-02, 2.154e-02, 2.047e-02, 1.959e-02, 1.888e-02, 1.828e-02,
+ 1.778e-02, 1.735e-02, 1.698e-02, 1.667e-02, 1.615e-02, 1.575e-02};
+
+ /* Photon absorption cross section for air */
+ static const Int_t fKN_air = 38;
+ static constexpr Float_t fEn_air[38] = {
+ 0.10000E-02, 0.15000E-02, 0.20000E-02, 0.30000E-02, 0.32029E-02, 0.32029E-02, 0.40000E-02, 0.50000E-02,
+ 0.60000E-02, 0.80000E-02, 0.10000E-01, 0.15000E-01, 0.20000E-01, 0.30000E-01, 0.40000E-01, 0.50000E-01,
+ 0.60000E-01, 0.80000E-01, 0.10000E+00, 0.15000E+00, 0.20000E+00, 0.30000E+00, 0.40000E+00, 0.50000E+00,
+ 0.60000E+00, 0.80000E+00, 0.10000E+01, 0.12500E+01, 0.15000E+01, 0.20000E+01, 0.30000E+01, 0.40000E+01,
+ 0.50000E+01, 0.60000E+01, 0.80000E+01, 0.10000E+02, 0.15000E+02, 0.20000E+02};
+ static constexpr Float_t fMu_air[38] = {
+ 0.35854E+04, 0.11841E+04, 0.52458E+03, 0.16143E+03, 0.15722E+03, 0.14250E+03, 0.77538E+02, 0.40099E+02,
+ 0.23313E+02, 0.98816E+01, 0.51000E+01, 0.16079E+01, 0.77536E+00, 0.35282E+00, 0.24790E+00, 0.20750E+00,
+ 0.18703E+00, 0.16589E+00, 0.15375E+00, 0.13530E+00, 0.12311E+00, 0.10654E+00, 0.95297E-01, 0.86939E-01,
+ 0.80390E-01, 0.70596E-01, 0.63452E-01, 0.56754E-01, 0.51644E-01, 0.44382E-01, 0.35733E-01, 0.30721E-01,
+ 0.27450E-01, 0.25171E-01, 0.22205E-01, 0.20399E-01, 0.18053E-01, 0.18057E-01};
+
+ /* Photon absorption cross section for xenon */
+ static const Int_t fKN_xe = 48;
+ static constexpr Float_t fEn_xe[48] = {
+ 1.00000E-03, 1.07191E-03, 1.14900E-03, 1.14900E-03, 1.50000E-03, 2.00000E-03, 3.00000E-03, 4.00000E-03,
+ 4.78220E-03, 4.78220E-03, 5.00000E-03, 5.10370E-03, 5.10370E-03, 5.27536E-03, 5.45280E-03, 5.45280E-03,
+ 6.00000E-03, 8.00000E-03, 1.00000E-02, 1.50000E-02, 2.00000E-02, 3.00000E-02, 3.45614E-02, 3.45614E-02,
+ 4.00000E-02, 5.00000E-02, 6.00000E-02, 8.00000E-02, 1.00000E-01, 1.50000E-01, 2.00000E-01, 3.00000E-01,
+ 4.00000E-01, 5.00000E-01, 6.00000E-01, 8.00000E-01, 1.00000E+00, 1.25000E+00, 1.50000E+00, 2.00000E+00,
+ 3.00000E+00, 4.00000E+00, 5.00000E+00, 6.00000E+00, 8.00000E+00, 1.00000E+01, 1.50000E+01, 2.00000E+01};
+ static constexpr Float_t fMu_xe[48] = {
+ 9.413E+03, 8.151E+03, 7.035E+03, 7.338E+03, 4.085E+03, 2.088E+03, 7.780E+02, 3.787E+02, 2.408E+02, 6.941E+02,
+ 6.392E+02, 6.044E+02, 8.181E+02, 7.579E+02, 6.991E+02, 8.064E+02, 6.376E+02, 3.032E+02, 1.690E+02, 5.743E+01,
+ 2.652E+01, 8.930E+00, 6.129E+00, 3.316E+01, 2.270E+01, 1.272E+01, 7.825E+00, 3.633E+00, 2.011E+00, 7.202E-01,
+ 3.760E-01, 1.797E-01, 1.223E-01, 9.699E-02, 8.281E-02, 6.696E-02, 5.785E-02, 5.054E-02, 4.594E-02, 4.078E-02,
+ 3.681E-02, 3.577E-02, 3.583E-02, 3.634E-02, 3.797E-02, 3.987E-02, 4.445E-02, 4.815E-02};
+
+ /* Photon absorption cross section for CO2 */
+ static const Int_t fKN_co2 = 36;
+ static constexpr Float_t fEn_co2[36] = {0.10000E-02, 0.15000E-02, 0.20000E-02, 0.30000E-02, 0.40000E-02, 0.50000E-02,
+ 0.60000E-02, 0.80000E-02, 0.10000E-01, 0.15000E-01, 0.20000E-01, 0.30000E-01,
+ 0.40000E-01, 0.50000E-01, 0.60000E-01, 0.80000E-01, 0.10000E+00, 0.15000E+00,
+ 0.20000E+00, 0.30000E+00, 0.40000E+00, 0.50000E+00, 0.60000E+00, 0.80000E+00,
+ 0.10000E+01, 0.12500E+01, 0.15000E+01, 0.20000E+01, 0.30000E+01, 0.40000E+01,
+ 0.50000E+01, 0.60000E+01, 0.80000E+01, 0.10000E+02, 0.15000E+02, 0.20000E+02};
+ static constexpr Float_t fMu_co2[36] = {0.39383E+04, 0.13166E+04, 0.58750E+03, 0.18240E+03, 0.77996E+02, 0.40024E+02,
+ 0.23116E+02, 0.96997E+01, 0.49726E+01, 0.15543E+01, 0.74915E+00, 0.34442E+00,
+ 0.24440E+00, 0.20589E+00, 0.18632E+00, 0.16578E+00, 0.15394E+00, 0.13558E+00,
+ 0.12336E+00, 0.10678E+00, 0.95510E-01, 0.87165E-01, 0.80587E-01, 0.70769E-01,
+ 0.63626E-01, 0.56894E-01, 0.51782E-01, 0.44499E-01, 0.35839E-01, 0.30825E-01,
+ 0.27555E-01, 0.25269E-01, 0.22311E-01, 0.20516E-01, 0.18184E-01, 0.17152E-01};
+
+ /* Photon absorption cross section for mylar */
+ static const Int_t fKN_my = 36;
+ static constexpr Float_t fEn_my[36] = {1.00000E-03, 1.50000E-03, 2.00000E-03, 3.00000E-03, 4.00000E-03, 5.00000E-03,
+ 6.00000E-03, 8.00000E-03, 1.00000E-02, 1.50000E-02, 2.00000E-02, 3.00000E-02,
+ 4.00000E-02, 5.00000E-02, 6.00000E-02, 8.00000E-02, 1.00000E-01, 1.50000E-01,
+ 2.00000E-01, 3.00000E-01, 4.00000E-01, 5.00000E-01, 6.00000E-01, 8.00000E-01,
+ 1.00000E+00, 1.25000E+00, 1.50000E+00, 2.00000E+00, 3.00000E+00, 4.00000E+00,
+ 5.00000E+00, 6.00000E+00, 8.00000E+00, 1.00000E+01, 1.50000E+01, 2.00000E+01};
+ static constexpr Float_t fMu_my[36] = {
+ 2.911E+03, 9.536E+02, 4.206E+02, 1.288E+02, 5.466E+01, 2.792E+01, 1.608E+01, 6.750E+00, 3.481E+00,
+ 1.132E+00, 5.798E-01, 3.009E-01, 2.304E-01, 2.020E-01, 1.868E-01, 1.695E-01, 1.586E-01, 1.406E-01,
+ 1.282E-01, 1.111E-01, 9.947E-02, 9.079E-02, 8.395E-02, 7.372E-02, 6.628E-02, 5.927E-02, 5.395E-02,
+ 4.630E-02, 3.715E-02, 3.181E-02, 2.829E-02, 2.582E-02, 2.257E-02, 2.057E-02, 1.789E-02, 1.664E-02};
+
+
+ ClassDef(CbmTrdRadiator, 3)
};
-
#endif
diff --git a/sim/detectors/trd/CbmTrd.cxx b/sim/detectors/trd/CbmTrd.cxx
index 1c85f4788ae9f3b59515ccca0bf3fbe3d7f8a7bc..1b00a4dd837872408e879a08f2da91e92da278e7 100644
--- a/sim/detectors/trd/CbmTrd.cxx
+++ b/sim/detectors/trd/CbmTrd.cxx
@@ -43,8 +43,9 @@ CbmTrd::CbmTrd()
, fPosIndex(0)
, fTrdPoints(new TClonesArray("CbmTrdPoint"))
, fGeoHandler(new CbmTrdGeoHandler())
- , fUseGlobalPhysicsProcesses(kTRUE)
- , fCombiTrans(nullptr) {
+ , fUseGlobalPhysicsProcesses(kFALSE)
+ , fCombiTrans(nullptr)
+{
fVerboseLevel = 1;
}
// ----------------------------------------------------------------------------
@@ -63,15 +64,17 @@ CbmTrd::CbmTrd(const char* name, Bool_t active)
, fPosIndex(0)
, fTrdPoints(new TClonesArray("CbmTrdPoint"))
, fGeoHandler(new CbmTrdGeoHandler())
- , fUseGlobalPhysicsProcesses(kTRUE)
- , fCombiTrans(nullptr) {
+ , fUseGlobalPhysicsProcesses(kFALSE)
+ , fCombiTrans(nullptr)
+{
fVerboseLevel = 1;
}
// ----------------------------------------------------------------------------
// ----- Destructor -------------------------------------------------------
-CbmTrd::~CbmTrd() {
+CbmTrd::~CbmTrd()
+{
if (fTrdPoints) {
fTrdPoints->Delete();
delete fTrdPoints;
@@ -82,7 +85,8 @@ CbmTrd::~CbmTrd() {
// ----- Initialize -------------------------------------------------------
-void CbmTrd::Initialize() {
+void CbmTrd::Initialize()
+{
FairDetector::Initialize();
// Initialize the CbmTrdGeoHandler helper class from the
@@ -94,7 +98,8 @@ void CbmTrd::Initialize() {
// ----- SetSpecialPhysicsCuts --------------------------------------------
-void CbmTrd::SetSpecialPhysicsCuts() {
+void CbmTrd::SetSpecialPhysicsCuts()
+{
FairRun* fRun = FairRun::Instance();
// Setting the properties for the TRDgas is only tested
@@ -135,12 +140,12 @@ void CbmTrd::SetSpecialPhysicsCuts() {
trdgas->Print();
LOG(fatal) << "Parameters from Virtual Montecarlo:";
LOG(fatal) << "Name " << name << " Aeff=" << a << " Zeff=" << z;
- Fatal("CbmTrd::SetSpecialPhysicsCuts",
- "Material parameters different between TVirtualMC and TGeomanager");
+ Fatal("CbmTrd::SetSpecialPhysicsCuts", "Material parameters different between TVirtualMC and TGeomanager");
}
// Set new properties, physics cuts etc. for the TRDgas
if (!fUseGlobalPhysicsProcesses) {
+ LOG(info) << "Using special parameters for TRDgas";
gMC->Gstpar(matIdVMC, "STRA", 1.0);
gMC->Gstpar(matIdVMC, "PAIR", 1.0);
gMC->Gstpar(matIdVMC, "COMP", 1.0);
@@ -157,6 +162,9 @@ void CbmTrd::SetSpecialPhysicsCuts() {
gMC->Gstpar(matIdVMC, "DRAY", 1.0);
gMC->Gstpar(matIdVMC, "RAYL", 1.0);
}
+ else
+ LOG(info) << "!! Using global parameters for TRDgas";
+
// cut values
gMC->Gstpar(matIdVMC, "CUTELE", 10.e-6);
gMC->Gstpar(matIdVMC, "CUTGAM", 10.e-6);
@@ -174,7 +182,8 @@ void CbmTrd::SetSpecialPhysicsCuts() {
// ----- Public method ProcessHits ----------------------------------------
-Bool_t CbmTrd::ProcessHits(FairVolume*) {
+Bool_t CbmTrd::ProcessHits(FairVolume*)
+{
// Set parameters at entrance of volume. Reset ELoss.
if (gMC->IsTrackEntering()) {
fELoss = 0.;
@@ -188,8 +197,7 @@ Bool_t CbmTrd::ProcessHits(FairVolume*) {
fELoss += gMC->Edep();
// Create CbmTrdPoint at exit of active volume
- if (gMC->IsTrackExiting() || gMC->IsTrackStop()
- || gMC->IsTrackDisappeared()) {
+ if (gMC->IsTrackExiting() || gMC->IsTrackStop() || gMC->IsTrackDisappeared()) {
gMC->TrackPosition(fPosOut);
gMC->TrackMomentum(fMomOut);
@@ -201,15 +209,9 @@ Bool_t CbmTrd::ProcessHits(FairVolume*) {
Int_t size = fTrdPoints->GetEntriesFast();
new ((*fTrdPoints)[size])
- CbmTrdPoint(trackId,
- moduleAddress,
- TVector3(fPosIn.X(), fPosIn.Y(), fPosIn.Z()),
- TVector3(fMomIn.Px(), fMomIn.Py(), fMomIn.Pz()),
- TVector3(fPosOut.X(), fPosOut.Y(), fPosOut.Z()),
- TVector3(fMomOut.Px(), fMomOut.Py(), fMomOut.Pz()),
- fTime,
- fLength,
- fELoss);
+ CbmTrdPoint(trackId, moduleAddress, TVector3(fPosIn.X(), fPosIn.Y(), fPosIn.Z()),
+ TVector3(fMomIn.Px(), fMomIn.Py(), fMomIn.Pz()), TVector3(fPosOut.X(), fPosOut.Y(), fPosOut.Z()),
+ TVector3(fMomOut.Px(), fMomOut.Py(), fMomOut.Pz()), fTime, fLength, fELoss);
// Increment number of trd points in TParticle
CbmStack* stack = (CbmStack*) gMC->GetStack();
@@ -224,7 +226,8 @@ Bool_t CbmTrd::ProcessHits(FairVolume*) {
// ----- Public method EndOfEvent -----------------------------------------
-void CbmTrd::EndOfEvent() {
+void CbmTrd::EndOfEvent()
+{
if (fVerboseLevel) Print();
fTrdPoints->Delete();
fPosIndex = 0;
@@ -233,16 +236,14 @@ void CbmTrd::EndOfEvent() {
// ----- Public method Register -------------------------------------------
-void CbmTrd::Register() {
- FairRootManager::Instance()->Register("TrdPoint", "Trd", fTrdPoints, kTRUE);
-}
+void CbmTrd::Register() { FairRootManager::Instance()->Register("TrdPoint", "Trd", fTrdPoints, kTRUE); }
// ----------------------------------------------------------------------------
// ----- Public method GetCollection --------------------------------------
-TClonesArray* CbmTrd::GetCollection(Int_t iColl) const {
- if (iColl == 0)
- return fTrdPoints;
+TClonesArray* CbmTrd::GetCollection(Int_t iColl) const
+{
+ if (iColl == 0) return fTrdPoints;
else
return NULL;
}
@@ -250,7 +251,8 @@ TClonesArray* CbmTrd::GetCollection(Int_t iColl) const {
// ----- Public method Print ----------------------------------------------
-void CbmTrd::Print(Option_t*) const {
+void CbmTrd::Print(Option_t*) const
+{
Int_t nHits = fTrdPoints->GetEntriesFast();
LOG(info) << fName << ": " << nHits << " points registered in this event.";
@@ -264,7 +266,8 @@ void CbmTrd::Print(Option_t*) const {
// ----- Public method Reset ----------------------------------------------
-void CbmTrd::Reset() {
+void CbmTrd::Reset()
+{
fTrdPoints->Delete();
ResetParameters();
}
@@ -272,7 +275,8 @@ void CbmTrd::Reset() {
// ----- Public method CopyClones -----------------------------------------
-void CbmTrd::CopyClones(TClonesArray* cl1, TClonesArray* cl2, Int_t offset) {
+void CbmTrd::CopyClones(TClonesArray* cl1, TClonesArray* cl2, Int_t offset)
+{
Int_t nEntries = cl1->GetEntriesFast();
LOG(info) << "CbmTrd: " << nEntries << " entries to add.";
TClonesArray& clref = *cl2;
@@ -289,34 +293,35 @@ void CbmTrd::CopyClones(TClonesArray* cl1, TClonesArray* cl2, Int_t offset) {
// ----- ConstructGeometry --------------------------------------------------
-void CbmTrd::ConstructGeometry() {
+void CbmTrd::ConstructGeometry()
+{
TString fileName = GetGeometryFileName();
- if (fileName.EndsWith(".root")) {
- ConstructRootGeometry();
- } else {
- LOG(fatal) << "Geometry format of TRD file " << fileName.Data()
- << " not supported.";
+ if (fileName.EndsWith(".root")) { ConstructRootGeometry(); }
+ else {
+ LOG(fatal) << "Geometry format of TRD file " << fileName.Data() << " not supported.";
}
}
// ----------------------------------------------------------------------------
//__________________________________________________________________________
-void CbmTrd::ConstructRootGeometry(TGeoMatrix*) {
+void CbmTrd::ConstructRootGeometry(TGeoMatrix*)
+{
if (Cbm::GeometryUtils::IsNewGeometryFile(fgeoName)) {
LOG(info) << "Importing TRD geometry from ROOT file " << fgeoName.Data();
Cbm::GeometryUtils::ImportRootGeometry(fgeoName, this, fCombiTrans);
- } else {
+ }
+ else {
LOG(info) << "Constructing TRD geometry from ROOT file " << fgeoName.Data();
FairModule::ConstructRootGeometry();
}
}
// ----- CheckIfSensitive -------------------------------------------------
-Bool_t CbmTrd::CheckIfSensitive(std::string name) {
+Bool_t CbmTrd::CheckIfSensitive(std::string name)
+{
TString tsname = name;
if (tsname.EqualTo("gas")) {
- LOG(debug) << "CbmTrd::CheckIfSensitive: Register active volume: "
- << tsname;
+ LOG(debug) << "CbmTrd::CheckIfSensitive: Register active volume: " << tsname;
return kTRUE;
}
return kFALSE;
diff --git a/sim/detectors/trd/CbmTrdDigitizer.cxx b/sim/detectors/trd/CbmTrdDigitizer.cxx
index 0e3379227f7b6eec4ac1e1a55ff12785e59f7ef5..5525fd0efa6c57f82e648a8cb0d06f093e25e36c 100644
--- a/sim/detectors/trd/CbmTrdDigitizer.cxx
+++ b/sim/detectors/trd/CbmTrdDigitizer.cxx
@@ -73,7 +73,7 @@ CbmTrdDigitizer::CbmTrdDigitizer(CbmTrdRadiator* radiator)
// ,fGeoHandler(new CbmTrdGeoHandler())
, fModuleMap()
, fDigiMap() {
- if (fRadiator == NULL) fRadiator = new CbmTrdRadiator(kTRUE, "K++");
+ if (fRadiator == NULL) fRadiator = new CbmTrdRadiator(kTRUE, "tdr18");
}