CbmLitCheckEnergyLossMuons.cxx

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/* Copyright (C) 2009-2020 GSI/JINR-LIT, Darmstadt/Dubna
   SPDX-License-Identifier: GPL-3.0-only
   Authors: Andrey Lebedev [committer] */
 
#include "qa/material/CbmLitCheckEnergyLossMuons.h"
 
#include "CbmDrawHist.h"
#include "CbmUtils.h"
#include "TCanvas.h"
#include "data/CbmLitTrackParam.h"
#include "propagation/CbmLitMaterialEffectsImp.h"
#include "propagation/CbmLitMaterialInfo.h"
 
#include <TAxis.h>
#include <TGraph.h>
 
#include <boost/assign/list_of.hpp>
 
#include <cstdlib>
 
using boost::assign::list_of;
 
CbmLitCheckEnergyLossMuons::CbmLitCheckEnergyLossMuons() : fMat("iron"), fOutputDir("./test/")
{
  fMom[0]  = 47.04;
  fMom[1]  = 56.16;
  fMom[2]  = 68.02;
  fMom[3]  = 85.09;
  fMom[4]  = 100.3;
  fMom[5]  = 152.7;
  fMom[6]  = 176.4;
  fMom[7]  = 221.8;
  fMom[8]  = 286.8;
  fMom[9]  = 364.2;
  fMom[10] = 391.7;
  fMom[11] = 494.5;
  fMom[12] = 899.5;
  fMom[13] = 1101.;
  fMom[14] = 1502.;
  fMom[15] = 2103.;
  fMom[16] = 3104.;
  fMom[17] = 4104.;
  fMom[18] = 8105.;
  fMom[19] = 10110.;
  fMom[20] = 14110.;
  fMom[21] = 20110.;
  fMom[22] = 30110.;
  fMom[23] = 40110.;
  fMom[24] = 80110.;
  fMom[25] = 100100.;
}
 
CbmLitCheckEnergyLossMuons::~CbmLitCheckEnergyLossMuons() {}
 
void CbmLitCheckEnergyLossMuons::Check()
{
  SetDefaultDrawStyle();
 
  CreateGraphs();
 
  if (fMat == "iron") {
    FillTableIron();
  }
  else if (fMat == "tungsten") {
    FillTableTungsten();
  }
  else if (fMat == "carbon") {
    FillTableCarbon();
  }
 
  CalcEloss();
 
  DrawGraphs();
}
 
void CbmLitCheckEnergyLossMuons::DrawGraphs()
{
  TCanvas* c1 = new TCanvas("mean_energy_loss_muons", "mean_energy_loss_muons", 700, 500);
 
  fTable[0]->GetXaxis()->SetLimits(45, 100102);
  fTable[0]->SetMinimum(0.1);
  fTable[0]->SetMaximum(10.);
 
  DrawGraph(list_of(fTable[0])(fTable[1])(fTable[2])(fTable[3])(fCalc[0])(fCalc[1])(fCalc[2])(fCalc[3]),
            list_of("total (table)")("ionization (table)")("bremsstrahlung (table)")("pair production (table)")(
              "total (calculation)")("ionization (calculation)")("bremsstrahlung (calculation)")(
              "pair production (calculation)"),
            kLog, kLog, true, 0.20, 0.97, 0.9, 0.7);
 
  Cbm::SaveCanvasAsImage(c1, fOutputDir);
}
 
void CbmLitCheckEnergyLossMuons::CalcEloss()
{
  CbmLitMaterialInfo material;
  if (fMat == "tungsten") {
    material.SetA(183.84);
    material.SetZ(74.0);
    material.SetRho(19.3);
    material.SetRL(0.35);
  }
  else if (fMat == "iron") {
    material.SetA(55.85);
    material.SetZ(26.0);
    material.SetRho(7.87);
    material.SetRL(1.757622);
  }
  else if (fMat == "carbon") {
    material.SetA(12.0107);
    material.SetZ(6);
    material.SetRho(2.265);
    material.SetRL(18.8);
  }
  else {
    exit(0);
  }
 
  CbmLitMaterialEffectsImp me;
  CbmLitTrackParam par;
  for (Int_t i = 0; i < 26; i++) {
    par.SetQp(1. / (fMom[i] * 1e-3));
    fCalc[1]->SetPoint(i, fMom[i], me.BetheBloch(&par, &material) * 1e3);
    fCalc[2]->SetPoint(i, fMom[i], me.BetheHeitler(&par, &material) * 1e3);
    fCalc[3]->SetPoint(i, fMom[i], me.PairProduction(&par, &material) * 1e3);
    fCalc[0]->SetPoint(i, fMom[i], me.dEdx(&par, &material) * 1e3);
  }
}
 
void CbmLitCheckEnergyLossMuons::CreateGraphs()
{
  for (int i = 0; i < 4; i++) {
    fTable[i] = new TGraph();
    fTable[i]->GetXaxis()->SetTitle("Momentum [MeV/c]");
    fTable[i]->GetYaxis()->SetTitle("Energy loss [Mev*cm^2/g]");
    fCalc[i] = new TGraph();
    fCalc[i]->GetXaxis()->SetTitle("Momentum [MeV/c]");
    fCalc[i]->GetYaxis()->SetTitle("Energy loss [Mev*cm^2/g]");
  }
}
 
void CbmLitCheckEnergyLossMuons::FillTableIron()
{
  Double_t table_iron[26][4] = {
    //ion    //brems   //pair   //total
    {5.494, 0.000, 0.000, 5.494}, {4.321, 0.000, 0.000, 4.321}, {3.399, 0.000, 0.000, 3.399},
    {2.654, 0.000, 0.000, 2.654}, {2.274, 0.000, 0.000, 2.274}, {1.717, 0.000, 0.000, 1.717},
 
    {1.616, 0.000, 0.000, 1.616}, {1.516, 0.000, 0.000, 1.516}, {1.463, 0.000, 0.000, 1.463},
    {1.451, 0.000, 0.000, 1.451}, {1.452, 0.000, 0.000, 1.453}, {1.467, 0.000, 0.000, 1.467},
    {1.548, 0.000, 0.000, 1.548},
 
    {1.581, 0.001, 0.000, 1.582}, {1.635, 0.001, 0.000, 1.637}, {1.694, 0.002, 0.001, 1.697},
    {1.760, 0.003, 0.002, 1.767}, {1.806, 0.004, 0.004, 1.816}, {1.911, 0.010, 0.011, 1.936},
 
    {1.942, 0.014, 0.015, 1.975}, {1.987, 0.021, 0.024, 2.039}, {2.032, 0.033, 0.039, 2.113},
    {2.080, 0.054, 0.068, 2.214}, {2.112, 0.076, 0.099, 2.303}, {2.184, 0.171, 0.236, 2.623},
    {2.207, 0.221, 0.310, 2.777}};
 
  for (Int_t i = 0; i < 26; i++) {
    fTable[1]->SetPoint(i, fMom[i], table_iron[i][0]);
    fTable[2]->SetPoint(i, fMom[i], table_iron[i][1]);
    fTable[3]->SetPoint(i, fMom[i], table_iron[i][2]);
    fTable[0]->SetPoint(i, fMom[i], table_iron[i][3]);
  }
}
 
void CbmLitCheckEnergyLossMuons::FillTableTungsten()
{
  Double_t table_tungsten[26][4] = {
    //ion    //brems   //pair   //total
    {4.000, 0.000, 0.000, 4.00},  {3.185, 0.000, 0.000, 3.185}, {2.534, 0.000, 0.000, 2.534},
    {2.000, 0.000, 0.000, 2.000}, {1.726, 0.000, 0.000, 1.726}, {1.323, 0.000, 0.000, 1.323},
 
    {1.251, 0.000, 0.000, 1.251}, {1.182, 0.000, 0.000, 1.182}, {1.149, 0.000, 0.000, 1.149},
    {1.145, 0.000, 0.000, 1.145}, {1.150, 0.000, 0.000, 1.150}, {1.168, 0.000, 0.000, 1.168},
    {1.247, 0.001, 0.000, 1.249},
 
    {1.279, 0.001, 0.000, 1.281}, {1.329, 0.002, 0.001, 1.333}, {1.384, 0.004, 0.002, 1.391},
    {1.446, 0.006, 0.005, 1.459}, {1.489, 0.009, 0.009, 1.509}, {1.587, 0.023, 0.026, 1.640},
 
    {1.616, 0.031, 0.036, 1.687}, {1.658, 0.047, 0.057, 1.768}, {1.700, 0.073, 0.092, 1.874},
    {1.745, 0.120, 0.159, 2.035}, {1.774, 0.169, 0.231, 2.190}, {1.840, 0.383, 0.548, 2.800},
    {1.860, 0.496, 0.717, 3.110}};
 
  for (Int_t i = 0; i < 26; i++) {
    fTable[1]->SetPoint(i, fMom[i], table_tungsten[i][0]);
    fTable[2]->SetPoint(i, fMom[i], table_tungsten[i][1]);
    fTable[3]->SetPoint(i, fMom[i], table_tungsten[i][2]);
    fTable[0]->SetPoint(i, fMom[i], table_tungsten[i][3]);
  }
}
 
void CbmLitCheckEnergyLossMuons::FillTableCarbon()
{
  Double_t table_carbon[26][4] = {
    //ion    //brems   //pair   //total
    {7.119, 0.000, 0.000, 7.119}, {5.551, 0.000, 0.000, 5.551}, {4.332, 0.000, 0.000, 4.332},
    {3.356, 0.000, 0.000, 3.356}, {2.861, 0.000, 0.000, 2.861}, {2.127, 0.000, 0.000, 2.127},
 
    {1.992, 0.000, 0.000, 1.992}, {1.854, 0.000, 0.000, 1.854}, {1.775, 0.000, 0.000, 1.775},
    {1.745, 0.000, 0.000, 1.745}, {1.745, 0.000, 0.000, 1.745}, {1.751, 0.000, 0.000, 1.751},
    {1.819, 0.000, 0.000, 1.820},
 
    {1.850, 0.000, 0.000, 1.851}, {1.900, 0.000, 0.000, 1.901}, {1.955, 0.000, 0.000, 1.957},
    {2.018, 0.001, 0.001, 2.021}, {2.062, 0.001, 0.001, 2.066}, {2.161, 0.003, 0.003, 2.171},
 
    {2.191, 0.004, 0.004, 2.204}, {2.234, 0.006, 0.007, 2.254}, {2.278, 0.010, 0.011, 2.308},
    {2.326, 0.016, 0.019, 2.374}, {2.359, 0.022, 0.028, 2.427}, {2.434, 0.050, 0.068, 2.587},
    {2.458, 0.065, 0.089, 2.655}};
 
  for (Int_t i = 0; i < 26; i++) {
    fTable[1]->SetPoint(i, fMom[i], table_carbon[i][0]);
    fTable[2]->SetPoint(i, fMom[i], table_carbon[i][1]);
    fTable[3]->SetPoint(i, fMom[i], table_carbon[i][2]);
    fTable[0]->SetPoint(i, fMom[i], table_carbon[i][3]);
  }
}
 
ClassImp(CbmLitCheckEnergyLossMuons);