/**************************************************************************
* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
* *
* Author: The ALICE Off-line Project. *
* Contributors are mentioned in the code where appropriate. *
* *
* Permission to use, copy, modify and distribute this software and its *
* documentation strictly for non-commercial purposes is hereby granted *
* without fee, provided that the above copyright notice appears in all *
* copies and that both the copyright notice and this permission notice *
* appear in the supporting documentation. The authors make no claims *
* about the suitability of this software for any purpose. It is *
* provided "as is" without express or implied warranty. *
**************************************************************************/
/* $Id$ */
/////////////////////////////////////////////////////////////////////
// //
// T0 ( T-zero) detector version 1 //
//
//Begin Html
/*
*/
//End Html
// //
// //
//////////////////////////////////////////////////////////////////////
#include
#include
#include "TGeoCompositeShape.h"
#include "TGeoManager.h"
#include "TGeoMatrix.h"
#include "TGeoPcon.h"
#include "TGeoTube.h"
#include
#include
#include
#include
#include
#include
#include "AliLog.h"
#include "AliMagF.h"
#include "AliRun.h"
#include "AliT0hit.h"
#include "AliT0v1.h"
#include "AliT0Parameters.h"
#include "AliMC.h"
#include "AliCDBLocal.h"
#include "AliCDBStorage.h"
#include "AliCDBManager.h"
#include "AliCDBEntry.h"
#include "AliTrackReference.h"
ClassImp(AliT0v1)
//--------------------------------------------------------------------
AliT0v1::AliT0v1(): AliT0(),
fIdSens1(0),
fEffPMT(0x0)
{
//
// Standart constructor for T0 Detector version 0
}
//--------------------------------------------------------------------
AliT0v1::AliT0v1(const char *name, const char *title):
AliT0(name,title),
fIdSens1(0),
fEffPMT(0x0)
{
//
// Standart constructor for T0 Detector version 0
//
fIshunt = 2;
AliT0Parameters* param = AliT0Parameters::Instance();
for (Int_t i=0; i<24; i++){
TGraph* grEff = param ->GetPMTeff(i);
fEffPMT.AddAtAndExpand(grEff,i);
}
}
//_____________________________________________________________________________
AliT0v1::~AliT0v1()
{
// desctructor
}
//-------------------------------------------------------------------------
void AliT0v1::CreateGeometry()
{
//
// Create the geometry of T0 Detector version 0
//
// begin Html
/*
*/
//
Int_t *idtmed = fIdtmed->GetArray();
/*
AliT0Parameters* param = AliT0Parameters::Instance();
param->Init();
Float_t zdetC = param->GetZposition(0);
Float_t zdetA = param->GetZposition(1);
*/
Float_t zdetC = 69.7;
Float_t zdetA = 373.;
Int_t is;
Int_t idrotm[999];
Double_t x,y,z;
//C T0 mother volume
Float_t pstartR[18]={0., 360., 5.,
-6.8, 4.25, 10., //-76.5+0.00+69.7
// -0.75 , 4.45, 10., // -76.5+6.05+69.7
// 1.25 , 4.45, 10., //-76.5+8.05+69.7
-0.75 , 4.5, 10., // -76.5+6.05+69.7
1.25 , 4.5, 10., //-76.5+8.05+69.7
1.25 , 5.1, 10, //-76.5+8.05+69.7
6.8 , 5.1, 10.}; //-62.9+0.00+69.7
Float_t pstart[3]={4., 12.5,6.8};
Float_t pinstart[3]={0.,1.45,6.5};
Float_t ppmt[3]={0.,1.4,3.5};
Float_t ptop[3]={0.,1.,1.0};
Float_t preg[3]={0., 1.0, 0.005}; //photcathode dobavil bogdanov
Float_t ptopout[3]={1.,1.01, 1.}; //metal air around raiator for photos reflection
Float_t pbot[3]={0.6,1.2,0.1};
Float_t pglass[3]={1.2,1.3,2.};
Float_t pcer[3]={0.9,1.1,1.35};
Float_t psteel[3]={0.9,1.1,0.15};
Float_t psupport1[3] = {4.51,4.52,4.0};//C kozhuh vnutri
Float_t psupport2[3] = {9.5,9.6,4.0};// snaruzhi C
Float_t psupport3[3] = {4.52,9.5, 0.05};//kryshki C
Float_t psupport5[3] = {1.44,1.45,6.5}; // stakanchik dlai feu C
Float_t psupport6[3] = {0,1.4,0.04}; //kryshechka stakanchika Al
Float_t psupport7[3] = {1.44,1.45,0.4}; //kolechko snaruzhu stakanchika Al
// Mother Volume katushka dlia krepezha vokrug truby k Absorbru
AliMatrix(idrotm[901], 90., 0., 90., 90., 180., 0.);
Float_t ppcon[70];
ppcon[0] = 0;
ppcon[1] = 360;
ppcon[2] = 13;
// 1:
ppcon[3] = 7.2;
ppcon[4] = 4.4;
ppcon[5] = 4.5;
// 2
ppcon[6] = 8.2;
ppcon[7] = 4.4;
ppcon[8] = 4.5;
// 3
ppcon[9] = 8.2;
ppcon[10] = 4.4;
ppcon[11] = 5.1;
// 4
ppcon[12] = 8.3;
ppcon[13] = 4.4;
ppcon[14] = 5.1;
// 5
ppcon[15] = 8.3;
ppcon[16] = 4.9;
ppcon[17] = 5.1;
// 6
ppcon[18] = 15.;
ppcon[19] = 4.9;
ppcon[20] = 5.1;
// 7
ppcon[21] = 15.;
ppcon[22] = 3.15 ;
ppcon[23] = 5.1;
/// 8
ppcon[24] = 15.01;
ppcon[25] = 3.15;
ppcon[26] = 5.1;
/// 9
ppcon[27] = 15.01;
ppcon[28] = 3.15;
ppcon[29] = 3.25;
/// 9
ppcon[30] = 19.71;
ppcon[31] = 3.15;
ppcon[32] = 3.25;
// 10
ppcon[33] = 19.8;
ppcon[34] = 3.15;
ppcon[35] = 3.25;
// 11
ppcon[36] = 19.8;
ppcon[37] = 3.15;
ppcon[38] = 7.6;
// 14
ppcon[39] = 19.99;
ppcon[40] = 3.15;
ppcon[41] = 7.6;
gMC->Gsvolu("0SUP", "PCON", idtmed[kAir], ppcon,42);
z = -zdetC;
gMC->Gspos("0SUP",1,"ALIC",0.,0.,z,idrotm[901],"ONLY");
//-------------------------------------------------------------------
// T0 volume
//-------------------------------------------------------------------
gMC->Gsvolu("0STR","PCON",idtmed[kAir],pstartR,18);
gMC->Gspos("0STR",1,"ALIC",0.,0.,-zdetC+pstartR[3],idrotm[901],"ONLY");
// gMC->Gspos("0STL",1,"ALIC",0.,0.,zdetA+pstart[2],0,"ONLY");
//T0 interior
gMC->Gsvolu("0INS","TUBE",idtmed[kAir],pinstart,3);
gMC->Gsvolu("0PMT","TUBE",idtmed[kAir],ppmt,3);
gMC->Gsvolu("0SU1","TUBE",idtmed[kC],psupport1,3);//C kozhuh vnutri
gMC->Gsvolu("0SU2","TUBE",idtmed[kC],psupport2,3);// snaruzhi C
gMC->Gsvolu("0SU3","TUBE",idtmed[kC],psupport3,3);//kryshka perednaiai C
gMC->Gsvolu("0SU4","TUBE",idtmed[kC],psupport3,3);//kryshka zadnaiai C
// gMC->Gsvolu("0SU5","TUBE",idtmed[kAir],psupport4,3);// dyrki dlia feu v zadnej kryshke Air
gMC->Gsvolu("0SU6","TUBE",idtmed[kC],psupport5,3);// stakanchik dlai feu C
gMC->Gsvolu("0SU7","TUBE",idtmed[kAl],psupport6,3);//kryshechka stakanchika Al
gMC->Gsvolu("0SU8","TUBE",idtmed[kAl],psupport7,3);//kolechko snaruzhu stakanchika Al
//non-absorber side support and T0A !!!!!!!!
TGeoPcon * supPgon = new TGeoPcon("0supPgon",0.,360.,4);
supPgon->DefineSection(0, 0, 4.1, 5.5);
supPgon->DefineSection(1, 10.5 , 4.1, 5.5);
supPgon->DefineSection(2, 10.5 , 4.1, 4.9);
supPgon->DefineSection(3, 12.5 , 4.1, 4.9);
TGeoTranslation *trPgon = new TGeoTranslation("0trPgon",0,0,0);
trPgon->RegisterYourself();
TGeoVolumeAssembly * stlin = new TGeoVolumeAssembly("0STL");//empty segment
TGeoVolume *ins = gGeoManager->GetVolume("0INS");
new TGeoTube("0HOLE", 0, 1.51, 6.5);
TGeoTranslation *tr [12];
Double_t angle = 2 * TMath::Pi() / 12;
// Char_t nameTr[40];
TString nameTr;
for (Int_t itr=0; itr<12; itr++) {
// sprintf (nameTr,"0TR%i",itr+1);
nameTr = Form("0TR%i",itr+1);
x = 6.5 * TMath::Sin(itr * angle);
y = 6.5 * TMath::Cos(itr * angle);
tr[itr] = new TGeoTranslation(nameTr.Data(),x,y,6.5);
tr[itr]->RegisterYourself();
stlin->AddNode(ins,itr+13,tr[itr]);
}
TGeoCompositeShape *supsh = new TGeoCompositeShape("0supsh","0supPgon:0trPgon-(0HOLE:0TR1+0HOLE:0TR2+0HOLE:0TR3+0HOLE:0TR4+0HOLE:0TR5+0HOLE:0TR6+0HOLE:0TR7+0HOLE:0TR8+0HOLE:0TR9+0HOLE:0TR10+0HOLE:0TR11+0HOLE:0TR12)");
TGeoMedium *medal = gGeoManager->GetMedium("T0_Aluminium$");
TGeoVolume *supA = new TGeoVolume("0SUA",supsh,medal);
stlin->AddNode(supA,1,new TGeoTranslation(0,0,0));
TGeoVolume *alice = gGeoManager->GetVolume("ALIC");
alice->AddNode(stlin,1,new TGeoTranslation(0,0, zdetA ));
// T0A finished
//T0C
// first ring: 12 units of Scintillator+PMT+divider
Float_t theta = (180 / TMath::Pi()) * TMath::ATan(6.6 / zdetC);
Float_t phi[3];
for (is=0; is<12; is++)
{
x = 6.6 * TMath::Sin(is * angle);
y = 6.6 * TMath::Cos(is * angle);
phi[0] = -30 * is;
phi[1] = 90 - is * 30;
phi[2] = 90 - is * 30;
for (Int_t j = 0; j < 3; j++)
if (phi[j] < 0) phi[j] += 360;
AliMatrix (idrotm[902 + is], 90., phi[0],
90. + theta, phi[1],
theta, phi[2]);
z=-pstart[2]+pinstart[2]+0.3;
gMC->Gspos ("0INS", is + 1, "0STR", x, y, z, idrotm[902 + is], "ONLY");
}
x=0;
y=0;
// z=-pinstart[2]+ppmt[2]+psupport6[2]*2;
z=-pinstart[2]+ppmt[2]+0.08; //+psupport6[2];
gMC->Gspos("0PMT",1,"0INS",x,y,z,0,"ONLY");
// PMT
// Entry window (glass)
gMC->Gsvolu("0TOP","TUBE",idtmed[kOpGlass],ptop,3); //glass
z=-ppmt[2]+ptop[2];
gMC->Gspos("0TOP",1,"0PMT",0,0,z,0,"ONLY");
//"metal" air volume to simulate reclection
gMC->Gsvolu("0TOO","TUBE",idtmed[kOpAir],ptopout,3);
gMC->Gspos("0TOO",1,"0PMT",0,0,z,0,"ONLY");
//Fotokatod
gMC->Gsvolu ("0REG", "TUBE", idtmed[kOpGlassCathode], preg, 3);
z = -ppmt[2] + 2 * ptop[2] + preg[2];
gMC->Gspos ("0REG", 1, "0PMT", 0, 0, z, 0, "ONLY");
// Bottom glass
gMC->Gsvolu("0BOT","TUBE",idtmed[kGlass],pbot,3);
z=ppmt[2]-pbot[2];
gMC->Gspos("0BOT",1,"0PMT",0,0,z,0,"ONLY");
// Side cylinder glass
gMC->Gsvolu("0OUT","TUBE",idtmed[kGlass],pglass,3);
z=ppmt[2]-pglass[2];
gMC->Gspos("0OUT",1,"0PMT",0,0,z,0,"ONLY");
//PMT electrodes support structure
gMC->Gsvolu("0CER","TUBE",idtmed[kCer],pcer,3);
gMC->Gsvolu("0STE","TUBE",idtmed[kSteel],psteel,3);
z=-ppmt[2]+2*ptop[2]+0.3 + pcer[2];
gMC->Gspos("0CER",1,"0PMT",0,0,z,0,"ONLY");
z +=psteel[2]+pcer[2];
gMC->Gspos("0STE",1,"0PMT",0,0,z,0,"ONLY");
//Support absorber (C) side
z=-pstart[2]+psupport1[2];// 0.05; //0.1;
gMC->Gspos("0SU1",1,"0STR",0,0,z,0,"ONLY"); //C kozhuh snaruzhi
gMC->Gspos("0SU2",1,"0STR",0,0,z,0,"ONLY"); //C kozhuh vnutri
z=-pstart[2]+psupport3[2];// - 0.1;
gMC->Gspos("0SU3",1,"0STR",0,0,z,0,"ONLY"); //peredniaia kryshka
z=-pstart[2]+2.*psupport1[2];//+0.1;
gMC->Gspos("0SU4",1,"0STR",0,0,z,0,"MANY"); //zadnaiai kryshka
gMC->Gspos("0SU6",1,"0INS",0,0,0,0,"ONLY");//C stakanchik dlia feu
z=-pinstart[2]+psupport6[2]; //-0.1;
gMC->Gspos("0SU7",1,"0INS",0,0,z,0,"ONLY"); //Al kryshechka
z=pinstart[2]-psupport7[2];
// gMC->Gspos("0SU8",1,"0SU6",0,0,z,0,"ONLY"); //Al kolechko
Float_t par[3];
par[0]=4.4;
par[1]=4.5;
par[2]=0.5;
gMC->Gsvolu("0SC0","TUBE",idtmed[kC],par,3);
z=ppcon[3]+par[2];
gMC->Gspos("0SC0",1,"0SUP",0,0,z,0,"ONLY");
z += par[2];
par[0]=4.4;
par[1]=5.1;
par[2]=0.05;
gMC->Gsvolu("0SC1","TUBE",idtmed[kC],par,3);
z += par[2];
gMC->Gspos("0SC1",1,"0SUP",0,0,z,0,"ONLY");
z=z+par[2];
par[0]=4.9;
par[1]=5.0;
par[2]=6.7/2;
gMC->Gsvolu("0SC2","TUBE",idtmed[kC],par,3);
z += par[2];
gMC->Gspos("0SC2",1,"0SUP",0,0,z,0,"ONLY");
z += par[2];
par[0]=3.15;
par[1]=4.9;
par[2]=0.01/2;
gMC->Gsvolu("0SA1","TUBE",idtmed[kAl],par,3);
z += par[2];
// z -= par[2];
gMC->Gspos("0SA1",1,"0SUP",0,0,z,0,"ONLY");
z=z+par[2];
par[0]=3.15;
par[1]=3.16;
par[2]=4.7/2;
gMC->Gsvolu("0SA2","TUBE",idtmed[kAl],par,3);
z += par[2];
gMC->Gspos("0SA2",1,"0SUP",0,0,z,0,"ONLY");
z=z+par[2];
par[0]=3.16; // eta chast' prikruchena k absorberu
par[1]=7.4;
par[2]=0.01;
gMC->Gsvolu("0SA3","TUBE",idtmed[kAl],par,3);
// z += par[2];
z = ppcon[39] - par[2];
gMC->Gspos("0SA3",1,"0SUP",0,0,z,0,"ONLY");
par[0]=3.16; // gvozdi eta chast' prikruchena k absorberu
par[1]=7.4;
par[2]=0.01;
gMC->Gsvolu("0SN2","TUBE",idtmed[kSteel],par,3);
gMC->Gspos("0SN2",1,"0SUP",0,0,z,0,"MANY");
}
//------------------------------------------------------------------------
void AliT0v1::AddAlignableVolumes() const
{
//
// Create entries for alignable volumes associating the symbolic volume
// name with the corresponding volume path. Needs to be syncronized with
// eventual changes in the geometry.
//
// TString volPath;
// TString symName, sn;
TString volPath;
TString symName, sn;
TString vpA = "/ALIC_1/0STL_1/0INS_";
TString vpC = "/ALIC_1/0STR_1/0INS_";
TString vpInside = "/0PMT_1/0TOP_1";
TString vpAalign = "/ALIC_1/0STL_1";
TString vpCalign = "/ALIC_1/0STR_1";
for (Int_t imod=0; imod<26; imod++)
{
if (imod < 24)
{
if (imod < 12)
{ volPath = vpC; sn="T0/C/PMT";}
else
{ volPath = vpA; sn="T0/A/PMT";}
volPath += imod+1;
volPath += vpInside;
symName = sn;
symName += imod+1;
}
else if (imod == 24)
{volPath = vpCalign; symName="/ALIC_1/0STR_1";}
else
{volPath = vpAalign; symName="/ALIC_1/0STL_1";}
AliDebug(2,"--------------------------------------------");
AliDebug(2,Form("Alignable object %d", imod));
AliDebug(2,Form("volPath=%s\n",volPath.Data()));
AliDebug(2,Form("symName=%s\n",symName.Data()));
AliDebug(2,"--------------------------------------------");
if(!gGeoManager->SetAlignableEntry(symName.Data(),volPath.Data()))
AliFatal(Form("Alignable entry %s not created. Volume path %s not valid",
symName.Data(),volPath.Data()));
}
}
//------------------------------------------------------------------------
void AliT0v1::CreateMaterials()
{
Int_t isxfld = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Integ();
Float_t sxmgmx = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Max();
// Float_t a,z,d,radl,absl,buf[1];
// Int_t nbuf;
// AIR
Float_t aAir[4]={12.0107,14.0067,15.9994,39.948};
Float_t zAir[4]={6.,7.,8.,18.};
Float_t wAir[4]={0.000124,0.755267,0.231781,0.012827};
Float_t dAir = 1.20479E-3;
Float_t dAir1 = 1.20479E-11;
// Scintillator CH
Float_t ascin[2]={1.01,12.01};
Float_t zscin[2]={1,6};
Float_t wscin[2]={1,1};
Float_t denscin=1.03;
//Lucite C(CH3)CO2CH3
Float_t alucite[3]={1.01,12.01,15.999};
Float_t zlucite[3]={1,6,8};
Float_t wlucite[3]={8,5,2};
Float_t denlucite=1.16;
// PMT glass SiO2
Float_t aglass[2]={28.0855,15.9994};
Float_t zglass[2]={14.,8.};
Float_t wglass[2]={1.,2.};
Float_t dglass=2.65;
// Ceramic 97.2% Al2O3 , 2.8% SiO2
// Float_t wcer[2]={0.972,0.028};
Float_t aCeramic[2] = { 26.981539,15.9994 };
Float_t zCeramic[2] = { 13.,8. };
Float_t wCeramic[2] = { 2.,3. };
Float_t denscer = 3.6;
// Brass 80% Cu, 20% Zn
Float_t abrass[2] = {63.546,65.39};
Float_t zbrass[2] = {29,30};
Float_t wbrass[2] = {0.8,0.2};
Float_t denbrass=8.96;
//Ribber C6H12S
Float_t aribber[3] = {12.,1.,32.};
Float_t zribber[3] = {6.,1.,16.};
Float_t wribber[3] = {6.,12.,1.};
Float_t denribber=0.8;
// Support inside
Float_t asupport[2] = {12.,1.};
Float_t zsupport[2] = {6.,1.};
Float_t wsupport[2] = {1.,1.};
Float_t densupport=0.1;
//*** Definition Of avaible T0 materials ***
AliMaterial(0, "Steel$", 55.850,26.,7.87,1.76,999);
AliMixture(1, "Vacuum$", aAir, zAir, dAir1,4,wAir);
AliMixture(2, "Air$", aAir, zAir, dAir,4,wAir);
AliMaterial(10, "CarbonPlastic$", 12.01, 6.0, 2.26, 18.8,999);
AliMaterial(11, "Aliminium$", 26.98, 13.0, 2.7, 8.9,999);
AliMixture( 3, "Ceramic $",aCeramic, zCeramic, denscer, -2, wCeramic);
AliMixture( 4, "PMT glass $",aglass,zglass,dglass,-2,wglass);
/*
char namate[21]="";
gMC->Gfmate((*fIdmate)[3], namate, a, z, d, radl, absl, buf, nbuf);
acer[0]=a;
zcer[0]=z;
gMC->Gfmate((*fIdmate)[4], namate, a, z, d, radl, absl, buf, nbuf);
acer[1]=a;
zcer[1]=z;
AliMixture( 11, "Ceramic $", acer, zcer, denscer, 2, wcer);
*/
AliMixture( 5, "Scintillator$",ascin,zscin,denscin,-2,wscin);
AliMixture( 6, "Brass $", abrass, zbrass, denbrass, 2, wbrass);
AliMixture( 7, "Ribber $",aribber,zribber,denribber,-3,wribber);
AliMixture( 8, "Lucite$",alucite,zlucite,denlucite,-3,wlucite);
AliMixture( 9, "Penoplast$",asupport,zsupport,densupport,-2,wsupport);
AliMixture( 21, "PMT Optical glass $",aglass,zglass,dglass,-2,wglass);
AliMixture( 24, "PMT Optical glass cathode $",aglass,zglass,dglass,-2,wglass);
AliMixture(22, "T0 Opt Air$", aAir, zAir, dAir,4,wAir);
AliMixture(23, "T0 Opt Air Next$", aAir, zAir, dAir,4,wAir);
AliMedium(1, "T0 Air$", 2, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
AliMedium(2, "Scintillator$", 5, 1, isxfld, sxmgmx, 10., .01, 1., .003, .003);
AliMedium(3, "Vacuum$", 1, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
AliMedium(4, "Ceramic$", 3, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
AliMedium(6, "Glass$", 4, 1, isxfld, sxmgmx, 10., .01, .1, .003, .003);
AliMedium(8, "Steel$", 0, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
AliMedium(9, "Ribber $", 7, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
AliMedium(11, "Brass $", 6, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
AliMedium(12, "Lucite$", 8, 1, isxfld, sxmgmx, 10., .01, 1., .003, .003);
AliMedium(13, "CarbonPlastic$", 10, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);
AliMedium(14, "PenoPlast$", 9, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);
AliMedium(15, "Aluminium$", 11, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);
AliMedium(16, "OpticalGlass$", 21, 1, isxfld, sxmgmx, 10., .01, .1, .003, .003);
AliMedium(17, "T0 OpAir$", 22, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
AliMedium(18, "T0 OpAirNext$", 23, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
AliMedium(19, "OpticalGlassCathode$", 24, 1, isxfld, sxmgmx, 10., .01, .1, .003, .003);
AliDebugClass(1,": ++++++++++++++Medium set++++++++++");
}
//-------------------------------------------------------------------
void AliT0v1::DefineOpticalProperties()
{
// Optical properties definition.
Int_t *idtmed = fIdtmed->GetArray();
// Definition Cherenkov parameters
int i;
const Int_t kNbins=31;
Float_t rindexSiO2[kNbins], efficAll[kNbins], rindexAir[kNbins], absorAir[kNbins],rindexCathodeNext[kNbins], absorbCathodeNext[kNbins];
Double_t efficMet[kNbins], aReflMet[kNbins];
// quartz 20mm
Float_t aAbsSiO2[kNbins]={29.0, 28.6, 28.3, 27.7, 27.3, 26.7, 26.4,
25.9, 25.3, 24.9, 24.5, 23.7,
23.2, 22.8, 22.4, 21.8, 21.3,
22.8, 22.1, 21.7, 21.2, 20.5,
19.9, 19.3, 18.7, 18.0, 17.1,
16.3, 15.3, 14.3, 14.3 };
Float_t aPckov[kNbins] ={3.87, 3.94, 4.02, 4.11, 4.19, 4.29, 4.38,
4.48, 4.58, 4.69, 4.81, 4.93,
5.05, 5.19, 5.33, 5.48, 5.63,
5.8, 5.97, 6.16, 6.36, 6.57,
6.8, 7.04, 7.3, 7.58, 7.89,
8.22, 8.57, 8.97, 9.39 };
Double_t dPckov[kNbins] ={3.87, 3.94, 4.02, 4.11, 4.19, 4.29, 4.38,
4.48, 4.58, 4.69, 4.81, 4.93,
5.05, 5.19, 5.33, 5.48, 5.63,
5.8, 5.97, 6.16, 6.36, 6.57,
6.8, 7.04, 7.3, 7.58, 7.89,
8.22, 8.57, 8.97, 9.39 };
/*
Float_t effCathode[kNbins]={0.11, 0.13, 0.15, 0.16, 0.18, 0.19, 0.20,
0.21, 0.22, 0.23, 0.24, 0.26,
0.27, 0.29, 0.30, 0.29, 0.29,
0.28, 0.28, 0.27, 0.26, 0.25,
0.25, 0.23, 0.20, 0.19, 0.17,
0.17, 0.17, 0.2, 0.23};
*/
// Float_t aAbsSiO2[kNbins]; //quartz 30mm
for(i=0;iSetCerenkov (idtmed[kOpGlass], kNbins, aPckov, aAbsSiO2, efficAll, rindexSiO2 );
// gMC->SetCerenkov (idtmed[kOpGlassCathode], kNbins, aPckov, aAbsSiO2, effCathode, rindexSiO2 );
gMC->SetCerenkov (idtmed[kOpGlassCathode], kNbins, aPckov, aAbsSiO2,efficAll , rindexSiO2 );
gMC->SetCerenkov (idtmed[kOpAir], kNbins, aPckov,absorAir , efficAll,rindexAir );
gMC->SetCerenkov (idtmed[kOpAirNext], kNbins, aPckov,absorbCathodeNext , efficAll, rindexCathodeNext);
//Define a boarder for radiator optical properties
gMC->DefineOpSurface("surfRd", kUnified /*kGlisur*/,kDielectric_metal,kPolished, 0.);
gMC->SetMaterialProperty("surfRd", "EFFICIENCY", kNbins, dPckov, efficMet);
gMC->SetMaterialProperty("surfRd", "REFLECTIVITY", kNbins, dPckov, aReflMet);
gMC->SetBorderSurface("0TOPborder", "0TOP",1,"0TOO",1, "surfRd");
}
//-------------------------------------------------------------------
void AliT0v1::Init()
{
// Initialises version 0 of the Forward Multiplicity Detector
//
AliT0::Init();
fIdSens1=gMC->VolId("0REG");
AliDebug(1,Form("%s: *** T0 version 1 initialized ***\n",ClassName()));
}
//-------------------------------------------------------------------
void AliT0v1::StepManager()
{
//
// Called for every step in the T0 Detector
//
Int_t id,copy,copy1;
static Float_t hits[6];
static Int_t vol[2];
TLorentzVector pos;
TLorentzVector mom;
// TClonesArray &lhits = *fHits;
if(!gMC->IsTrackAlive()) return; // particle has disappeared
id=gMC->CurrentVolID(copy);
// Check the sensetive volume
if(id==fIdSens1 ) {
if(gMC->IsTrackEntering()) {
gMC->CurrentVolOffID(2,copy);
vol[1]=copy;
gMC->CurrentVolOffID(3,copy1);
vol[0]=copy1;
gMC->TrackPosition(pos);
hits[0] = pos[0];
hits[1] = pos[1];
hits[2] = pos[2];
if(pos[2]<0) vol[0] = 2;
if(pos[2]>=0) vol[0] = 1;
Float_t etot=gMC->Etot();
hits[3]=etot;
Int_t iPart= gMC->TrackPid();
Int_t partID=gMC->IdFromPDG(iPart);
hits[4]=partID;
Float_t ttime=gMC->TrackTime();
hits[5]=ttime*1e12;
if (gMC->TrackPid() == 50000050) // If particles is photon then ...
{
if(RegisterPhotoE(vol[1]-1,hits[3])) {
AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(),vol,hits);
// Create a track reference at the exit of photocatode
}
}
//charge particle
if ( gMC->TrackCharge() )
AddTrackReference(gAlice->GetMCApp()->GetCurrentTrackNumber(), AliTrackReference::kT0);
/*
printf("track(%i) alive(%i) disap(%i) enter(%i) exit(%i) inside(%i) out(%i) stop(%i) new(%i) \n",
gAlice->GetMCApp()->GetCurrentTrackNumber(),
gMC->IsTrackAlive(),
gMC->IsTrackDisappeared(),
gMC->IsTrackEntering(),
gMC->IsTrackExiting(),
gMC->IsTrackInside(),
gMC->IsTrackOut(),
gMC->IsTrackStop(),
gMC->IsNewTrack());
*/
}// trck entering
} //sensitive
}
//------------------------------------------------------------------------
Bool_t AliT0v1::RegisterPhotoE(Int_t ipmt,Double_t energy)
{
// Float_t hc=197.326960*1.e6; //mev*nm
Double_t hc=1.973*1.e-6; //gev*nm
Float_t lambda=hc/energy;
Float_t eff = ((TGraph*) fEffPMT.At(ipmt))->Eval(lambda);
Double_t p = gRandom->Rndm();
if (p > eff)
return kFALSE;
return kTRUE;
}
//----------------------------------------------------------------------------