+ AliDebug(10, "\tCreating materials");
+ // Get pointer to geometry singleton object.
+ AliFMDGeometry* geometry = AliFMDGeometry::Instance();
+ geometry->Init();
+#if 0
+ if (gGeoManager && gGeoManager->GetMedium("FMD Si$")) {
+ // We need to figure out the some stuff about the geometry
+ fmd->ExtractGeomInfo();
+ return;
+ }
+#endif
+ Int_t id;
+ Double_t a = 0;
+ Double_t z = 0;
+ Double_t density = 0;
+ Double_t radiationLength = 0;
+ Double_t absorbtionLength = 999;
+ Int_t fieldType = gAlice->Field()->Integ(); // Field type
+ Double_t maxField = gAlice->Field()->Max(); // Field max.
+ Double_t maxBending = 0; // Max Angle
+ Double_t maxStepSize = 0.001; // Max step size
+ Double_t maxEnergyLoss = 1; // Max Delta E
+ Double_t precision = 0.001; // Precision
+ Double_t minStepSize = 0.001; // Minimum step size
+
+ // Silicon
+ a = 28.0855;
+ z = 14.;
+ density = geometry->GetSiDensity();
+ radiationLength = 9.36;
+ maxBending = 1;
+ maxStepSize = .001;
+ precision = .001;
+ minStepSize = .001;
+ id = kSiId;
+ AliMaterial(id, "Si$", a, z, density, radiationLength, absorbtionLength);
+ AliMedium(kSiId, "Si$", id,1,fieldType,maxField,maxBending,
+ maxStepSize,maxEnergyLoss,precision,minStepSize);
+
+
+ // Carbon
+ a = 12.011;
+ z = 6.;
+ density = 2.265;
+ radiationLength = 18.8;
+ maxBending = 10;
+ maxStepSize = .01;
+ precision = .003;
+ minStepSize = .003;
+ id = kCarbonId;
+ AliMaterial(id, "Carbon$", a, z, density, radiationLength, absorbtionLength);
+ AliMedium(kCarbonId, "Carbon$", id,0,fieldType,maxField,maxBending,
+ maxStepSize,maxEnergyLoss,precision,minStepSize);
+
+ // Aluminum
+ a = 26.981539;
+ z = 13.;
+ density = 2.7;
+ radiationLength = 8.9;
+ id = kAlId;
+ AliMaterial(id, "Aluminum$",a,z, density, radiationLength, absorbtionLength);
+ AliMedium(kAlId, "Aluminum$", id, 0, fieldType, maxField, maxBending,
+ maxStepSize, maxEnergyLoss, precision, minStepSize);
+
+
+ // Copper
+ a = 63.546;
+ z = 29;
+ density = 8.96;
+ radiationLength = 1.43;
+ id = kCopperId;
+ AliMaterial(id, "Copper$",
+ a, z, density, radiationLength, absorbtionLength);
+ AliMedium(kCopperId, "Copper$", id, 0, fieldType, maxField, maxBending,
+ maxStepSize, maxEnergyLoss, precision, minStepSize);
+
+
+ // Silicon chip
+ {
+ Float_t as[] = { 12.0107, 14.0067, 15.9994,
+ 1.00794, 28.0855, 107.8682 };
+ Float_t zs[] = { 6., 7., 8.,
+ 1., 14., 47. };
+ Float_t ws[] = { 0.039730642, 0.001396798, 0.01169634,
+ 0.004367771, 0.844665, 0.09814344903 };
+ density = 2.36436;
+ maxBending = 10;
+ maxStepSize = .01;
+ precision = .003;
+ minStepSize = .003;
+ id = kSiChipId;
+ AliMixture(id, "Si Chip$", as, zs, density, 6, ws);
+ AliMedium(kSiChipId, "Si Chip$", id, 0, fieldType, maxField, maxBending,
+ maxStepSize, maxEnergyLoss, precision, minStepSize);
+ }
+
+ // Kaption
+ {
+ Float_t as[] = { 1.00794, 12.0107, 14.010, 15.9994};
+ Float_t zs[] = { 1., 6., 7., 8.};
+ Float_t ws[] = { 0.026362, 0.69113, 0.07327, 0.209235};
+ density = 1.42;
+ maxBending = 1;
+ maxStepSize = .001;
+ precision = .001;
+ minStepSize = .001;
+ id = kKaptonId;
+ AliMixture(id, "Kaption$", as, zs, density, 4, ws);
+ AliMedium(kKaptonId, "Kaption$", id,0,fieldType,maxField,maxBending,
+ maxStepSize,maxEnergyLoss,precision,minStepSize);
+ }
+
+ // Air
+ {
+ Float_t as[] = { 12.0107, 14.0067, 15.9994, 39.948 };
+ Float_t zs[] = { 6., 7., 8., 18. };
+ Float_t ws[] = { 0.000124, 0.755267, 0.231781, 0.012827 };
+ density = .00120479;
+ maxBending = 1;
+ maxStepSize = .001;
+ precision = .001;
+ minStepSize = .001;
+ id = kAirId;
+ AliMixture(id, "Air$", as, zs, density, 4, ws);
+ AliMedium(kAirId, "Air$", id,0,fieldType,maxField,maxBending,
+ maxStepSize,maxEnergyLoss,precision,minStepSize);
+ }
+
+ // PCB
+ {
+ Float_t zs[] = { 14., 20., 13., 12.,
+ 5., 22., 11., 19.,
+ 26., 9., 8., 6.,
+ 7., 1.};
+ Float_t as[] = { 28.0855, 40.078, 26.981538, 24.305,
+ 10.811, 47.867, 22.98977, 39.0983,
+ 55.845, 18.9984, 15.9994, 12.0107,
+ 14.0067, 1.00794};
+ Float_t ws[] = { 0.15144894, 0.08147477, 0.04128158, 0.00904554,
+ 0.01397570, 0.00287685, 0.00445114, 0.00498089,
+ 0.00209828, 0.00420000, 0.36043788, 0.27529426,
+ 0.01415852, 0.03427566};
+ density = 1.8;
+ maxBending = 1;
+ maxStepSize = .001;
+ precision = .001;
+ minStepSize = .001;
+ id = kPcbId;
+ AliMixture(id, "PCB$", as, zs, density, 14, ws);
+ AliMedium(kPcbId, "PCB$", id,0,fieldType,maxField,maxBending,
+ maxStepSize,maxEnergyLoss,precision,minStepSize);
+ }
+
+ // Plastic
+ {
+ Float_t as[] = { 1.01, 12.01 };
+ Float_t zs[] = { 1., 6. };
+ Float_t ws[] = { 1., 1. };
+ density = 1.03;
+ maxBending = 10;
+ maxStepSize = .01;
+ precision = .003;
+ minStepSize = .003;
+ id = kPlasticId;
+ AliMixture(id, "Plastic$", as, zs, density, -2, ws);
+ AliMedium(kPlasticId, "Plastic$", id,0,fieldType,maxField,maxBending,
+ maxStepSize,maxEnergyLoss,precision,minStepSize);
+ }