,fGeometry(0)
,fGasDensity(0)
,fFoilDensity(0)
+ ,fGasNobleFraction(0)
,fDrawTR(0)
,fDisplayType(0)
{
,fGeometry(0)
,fGasDensity(0)
,fFoilDensity(0)
+ ,fGasNobleFraction(0)
,fDrawTR(0)
,fDisplayType(0)
{
Float_t aco[2] = { 12.011 , 15.9994 };
Float_t zco[2] = { 6.0 , 8.0 };
Float_t wco[2] = { 1.0 , 2.0 };
- Float_t dco = 0.00186;
+ Float_t dco = 0.00186; // at 20C
// For water
Float_t awa[2] = { 1.0079, 15.9994 };
Float_t wwa[2] = { 2.0 , 1.0 };
Float_t dwa = 1.0;
- // For isobutane (C4H10)
- Float_t ais[2] = { 12.011 , 1.0079 };
- Float_t zis[2] = { 6.0 , 1.0 };
- Float_t wis[2] = { 4.0 , 10.0 };
- Float_t dis = 0.00267;
-
// For plexiglas (C5H8O2)
Float_t apg[3] = { 12.011 , 1.0079, 15.9994 };
Float_t zpg[3] = { 6.0 , 1.0 , 8.0 };
Float_t wXeCO2[3] = { 8.5 , 1.5 , 3.0 };
// Xe-content of the Xe/CO2-mixture (85% / 15%)
Float_t fxc = 0.85;
- Float_t dxe = 0.00549;
- Float_t dgm = fxc * dxe + (1.0 - fxc) * dco;
+ Float_t dxe = 0.00549; // at 20C
+ Float_t dgmXe = fxc * dxe + (1.0 - fxc) * dco;
+
+ // For Ar/CO2-gas-mixture
+ Float_t aArCO2[3] = { 39.948 , 12.0107 , 15.9994 };
+ Float_t zArCO2[3] = { 18.0 , 6.0 , 8.0 };
+ Float_t wArCO2[3] = { 8.2 , 1.8 , 3.6 };
+ // Ar-content of the Ar/CO2-mixture (82% / 18%)
+ Float_t fac = 0.82;
+ Float_t dar = 0.00166; // at 20C
+ Float_t dgmAr = fac * dar + (1.0 - fac) * dco;
// General tracking parameter
Float_t tmaxfd = -10.0;
AliMixture(2, "Air" , aAir, zAir, dAir, 4, wAir );
AliMixture(3, "Polyethilene", ape, zpe, dpe, -2, wpe );
AliMixture(8, "CO2", aco, zco, dco, -2, wco );
- AliMixture(9, "Isobutane", ais, zis, dis, -2, wis );
- AliMixture(10,"Gas mixture", aXeCO2, zXeCO2, dgm, -3, wXeCO2);
+ if (AliTRDSimParam::Instance()->IsXenon()) {
+ AliMixture(10,"XeCO2", aXeCO2, zXeCO2, dgmXe, -3, wXeCO2);
+ }
+ else if (AliTRDSimParam::Instance()->IsArgon()) {
+ AliInfo("Gas mixture: Ar C02 (80/20)");
+ AliMixture(10,"ArCO2", aArCO2, zArCO2, dgmAr, -3, wArCO2);
+ }
+ else {
+ AliFatal("Wrong gas mixture");
+ exit(1);
+ }
AliMixture(12,"G10", aG10, zG10, dG10, 4, wG10 );
AliMixture(13,"Water", awa, zwa, dwa, -2, wwa );
AliMixture(14,"Plexiglas", apg, zpg, dpg, -3, wpg );
// Save the density values for the TRD absorbtion
Float_t dmy = 1.39;
fFoilDensity = dmy;
- fGasDensity = dgm;
+ if (AliTRDSimParam::Instance()->IsXenon()) {
+ fGasDensity = dgmXe;
+ fGasNobleFraction = fxc;
+ }
+ else if (AliTRDSimParam::Instance()->IsArgon()) {
+ fGasDensity = dgmAr;
+ fGasNobleFraction = fac;
+ }
}
}
+//_____________________________________________________________________________
+AliLoader* AliTRD::MakeLoader(const char* topfoldername)
+{
+ fLoader = new AliLoader(GetName(),topfoldername);
+
+ AliInfo("Adding Tracklets-loader");
+ AliDataLoader *dl = new AliDataLoader("TRD.Tracklets.root","tracklets", "tracklets");
+ fLoader->AddDataLoader(dl);
+
+ return fLoader;
+}
+
//_____________________________________________________________________________
AliTRD &AliTRD::operator=(const AliTRD &trd)
{