| Geant4 Cross Reference |
1 void Read(TString source, TString physics_list 1 void Read(TString source, TString physics_list){
2 // Create output file geant4_dose.txt with the 2 // Create output file geant4_dose.txt with the dose rate distribution, calculated
3 // with the simulation results containted in b 3 // with the simulation results containted in brachytherapy.root
4 4
5 gROOT -> Reset(); 5 gROOT -> Reset();
6 TString fileName="brachytherapy_"+source+"_"+p 6 TString fileName="brachytherapy_"+source+"_"+physics_list+".root";
7 std::cout<< "Reading " << fileName << std::end 7 std::cout<< "Reading " << fileName << std::endl;
8 //const char * c = fileName.c_str(); 8 //const char * c = fileName.c_str();
9 TFile f(fileName); 9 TFile f(fileName);
10 10
11 Double_t Seed_length = 0.35; //seed length in 11 Double_t Seed_length = 0.35; //seed length in cm
12 12
13 Double_t EnergyMap[401]; //2D map of total ene 13 Double_t EnergyMap[401]; //2D map of total energy in "radial distance (mm)" and "angle (5 degrees)"
14 Int_t Voxels[401]; //the number of voxels used 14 Int_t Voxels[401]; //the number of voxels used to provide dose to each element of the energy map
15 Double_t normDose[401]; //Energy map divided b 15 Double_t normDose[401]; //Energy map divided by voxels used to make cell, normalised to energy deposition at 1cm, 90 degrees
16 Double_t GeomFunction[401]; //Geometry Functio 16 Double_t GeomFunction[401]; //Geometry Function, normalised to the geometry function at the reference point
17 Double_t GeometryFunctionZero; //Geometry fun 17 Double_t GeometryFunctionZero; //Geometry function at reference point, 1cm and 90 degrees
18 Double_t beta; //beta angle for Geometry Func 18 Double_t beta; //beta angle for Geometry Function calculation
19 Double_t R; //radial distance in cm 19 Double_t R; //radial distance in cm
20 Double_t K; //polar angle in radians 20 Double_t K; //polar angle in radians
21 Double_t Radial[401]; //radial dose function 21 Double_t Radial[401]; //radial dose function
22 Double_t radius; //radius (mm) 22 Double_t radius; //radius (mm)
23 Int_t radInt; //nearest integer of radius (mm) 23 Int_t radInt; //nearest integer of radius (mm)
24 Int_t numberOfBins=801; 24 Int_t numberOfBins=801;
25 25
26 for (int i=0; i <401; i++) 26 for (int i=0; i <401; i++)
27 { 27 {
28 EnergyMap[i]=0.; 28 EnergyMap[i]=0.;
29 Voxels[i]=0.; 29 Voxels[i]=0.;
30 } 30 }
31 31
32 //Build Energy Deposition Map 32 //Build Energy Deposition Map
33 for (int k=0; k< numberOfBins; k++) 33 for (int k=0; k< numberOfBins; k++)
34 { 34 {
35 for (int m=0; m< numberOfBins; m++) 35 for (int m=0; m< numberOfBins; m++)
36 { 36 {
37 Double_t xx_histo = h20->GetXaxis()->GetBin 37 Double_t xx_histo = h20->GetXaxis()->GetBinCenter(k);
38 Double_t yy_histo = h20->GetYaxis()->GetBin 38 Double_t yy_histo = h20->GetYaxis()->GetBinCenter(m);
39 Double_t edep_histo=h20->GetBinContent(k, m 39 Double_t edep_histo=h20->GetBinContent(k, m);
40 radius = sqrt(xx_histo*xx_histo+yy_histo*yy 40 radius = sqrt(xx_histo*xx_histo+yy_histo*yy_histo);
41 // if ((edep_histo!=0) && radius < 12. && ra 41 // if ((edep_histo!=0) && radius < 12. && radius > 9) std::cout << "histo: " << xx_histo << ", " << yy_histo
42 // 42 // << ", radius: " << radius <<", edep: "<< edep_histo << std::endl;
43 43
44 if (radius != 0){ 44 if (radius != 0){
45 radInt = TMath::Nint(4*radius); 45 radInt = TMath::Nint(4*radius);
46 if ((radInt>0)&&(radInt<=400)) 46 if ((radInt>0)&&(radInt<=400))
47 { 47 {
48 EnergyMap[radInt]+= edep_histo; 48 EnergyMap[radInt]+= edep_histo;
49 Voxels[radInt]+= 1; 49 Voxels[radInt]+= 1;
50 // if (radius < 12. && 50 // if (radius < 12. && radius > 9 && edep_histo!=0)std::cout<< "Radius: " << radius << ", radInt:"<<radInt << ", EnergyMap: "<< EnergyMap[radInt]<< ", voxels: " << Voxels[radInt]<< std::endl;
51 51
52 } 52 }
53 } 53 }
54 54
55 }} 55 }}
56 56
57 //Create Normalised Dose Map 57 //Create Normalised Dose Map
58 std::cout << "The energy deposition at the ref 58 std::cout << "The energy deposition at the reference point is " << EnergyMap[40] << std::endl;
59 Double_t tempNormValue = EnergyMap[40]/Voxels[ 59 Double_t tempNormValue = EnergyMap[40]/Voxels[40];
60 //value at 1cm, 90 degrees, the normalisation 60 //value at 1cm, 90 degrees, the normalisation point
61 std::cout << "Dose rate ditribution (distances 61 std::cout << "Dose rate ditribution (distances in cm)" << std::endl;
62 62
63 ofstream myfile; 63 ofstream myfile;
64 TString outputFileName ="geant4_dose_"+ source 64 TString outputFileName ="geant4_dose_"+ source+"_"+physics_list+".txt";
65 //const char * cOutputFileName = fileName.c_s 65 //const char * cOutputFileName = fileName.c_str();
66 myfile.open(outputFileName); 66 myfile.open(outputFileName);
67 std::cout << "file " << outputFileName << " is 67 std::cout << "file " << outputFileName << " is created "<<std::endl;
68 68
69 for (int i=0; i<=400; i++) 69 for (int i=0; i<=400; i++)
70 { 70 {
71 R = double(i)/40; //distance in CM!!! 71 R = double(i)/40; //distance in CM!!!
72 if (Voxels[i]>0) normDose[i] = EnergyMap[i]/V 72 if (Voxels[i]>0) normDose[i] = EnergyMap[i]/Voxels[i]/tempNormValue;
73 else normDose[i] = 0; 73 else normDose[i] = 0;
74 74
75 75
76 76
77 if (R> 0.05) 77 if (R> 0.05)
78 { 78 {
79 // cout << R << " " << normDose[i] << e 79 // cout << R << " " << normDose[i] << endl;
80 myfile << R << " " << normDose[i] << 80 myfile << R << " " << normDose[i] << "\n";
81 } 81 }
82 } 82 }
83 83
84 myfile.close(); 84 myfile.close();
85 } 85 }
86 86
87 87