/**************************************************************************
* 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. *
**************************************************************************/
/*
$Log$
*/
/////////////////////////////////////////////////////////////////////
// //
// START ( T-zero) detector version 0 //
//
//Begin Html
/*
*/
//End Html
// //
// //
//////////////////////////////////////////////////////////////////////
#include
#include
#include
#include
#include "AliSTARTv0.h"
#include "AliRun.h"
#include "AliMC.h"
#include
#include
//#include "TGeant3.h"
#include
ClassImp(AliSTARTv0)
//--------------------------------------------------------------------
AliSTARTv0::AliSTARTv0(const char *name, const char *title):
AliSTART(name,title)
{
//
// Standart constructor for START Detector version 0
//
fIdSens1=0;
// setBufferSize(128000);
}
//-------------------------------------------------------------------------
void AliSTARTv0::CreateGeometry()
{
//
// Create the geometry of START Detector version 0
//
// begin Html
/*
*/
//
Int_t *idtmed = fIdtmed->GetArray()-2099;
Int_t is;
Int_t idrotm[999];
Float_t x,y,z;
Float_t pstart[3]={4.5,10.7,5.3};
// Float_t pscin[3]={0.,2.54/2.,1.5};
Float_t ppmt[3]={0.,1.3,3.5};
Float_t pdivider[3]={0.,1.2,1.75};
Float_t pdiv2[3]={0.,1.2,1.25};
Float_t pdiv1[3]={0.6,1.2,0.5};
Float_t ptop[3]={0.,1.3,1.5};
Float_t pbot[3]={0.6,1.2,0.1};
Float_t pglass[3]={1.2,1.3,2.};
Float_t pcer[3]={0.9,1.1,0.09};
Float_t psteel[3]={0.9,1.1,0.01};
Float_t ppins[3]={0.6,1.2,0.014};
Float_t phole[3]={0.6,1.2,0.015};
Float_t pknob[3]={0.5,0.6,0.4};
Float_t pknob_vac[3]={0.,0.5,0.4};
Float_t pknob_bot[3]={0.,0.6,0.05};
Float_t pribber[3] = {0.,1.2,2.413/2.};
Float_t presist[3] = {0.,1.2,0.087/2.};
Float_t zdet=75.;
//-------------------------------------------------------------------
// START volume
//-------------------------------------------------------------------
AliMatrix(idrotm[901], 90., 0., 90., 90., 180., 0.);
gMC->Gsvolu("STRT","TUBE",idtmed[2101-1],pstart,3);
gMC->Gspos("STRT",1,"ALIC",0.,0.,zdet,0,"ONLY");
gMC->Gspos("STRT",2,"ALIC",0.,0.,-zdet,idrotm[901],"ONLY");
//START interior
// gMC->Gsvolu("SCIN","TUBE",idtmed[2102-1],pscin,3);
gMC->Gsvolu("PMT ","TUBE",idtmed[2103-1],ppmt,3);
gMC->Gsvolu("DIVI","TUBE",idtmed[2103-1],pdivider,3);
// first ring: 13 units of Scintillator+PMT+divider
for (is=1; is<=13; is++)
{
x=6.5*TMath::Sin(is*2*3.1415/13);
y=6.5*TMath::Cos(is*2*3.1415/13);
z=-pstart[2]+ppmt[2];
printf(" is %d x %f y %f r%f\n",is,x,y,sqrt(x*x+y*y));
// gMC->Gspos("SCIN",is,"STRT",x,y,z,0,"ONLY");
// z=z+pscin[2]+ppmt[2];
gMC->Gspos("PMT ",is,"STRT",x,y,z,0,"ONLY");
z=ppmt[2]+pdivider[2];
printf(" is %d, z Divider %f\n",is,z);
gMC->Gspos("DIVI",is,"STRT",x,y,z,0,"ONLY");
}
//second ring: 20 units of Scintillator+PMT+divider
for (is=14; is<=33;is++)
{
x=9.3*TMath::Sin(2.*3.1415/26+(is-13)*2*3.1415/20);
y=9.3*TMath::Cos(2.*3.1315/26+(is-13)*2*3.1415/20);
z=-pstart[2]+ppmt[2];
// gMC->Gspos("SCIN",is,"STRT",x,y,z,0,"ONLY");
//z=z+pscin[2]+ppmt[2];
gMC->Gspos("PMT ",is,"STRT",x,y,z,0,"ONLY");
z=ppmt[2]+pdiv2[2];
gMC->Gspos("DIVI",is,"STRT",x,y,z,0,"ONLY");
}
// PMT
// Entry window (glass)
gMC->Gsvolu("PTOP","TUBE",idtmed[2106-1],ptop,3);
z=-ppmt[2]+ptop[2];
gMC->Gspos("PTOP",1,"PMT ",0,0,z,0,"ONLY");
// printf("Z PTOP %f -ppmt[2] %f ptop[2] %f\n",z,-ppmt[2],ptop[2]);
// Bottom glass
gMC->Gsvolu("PBOT","TUBE",idtmed[2106-1],pbot,3);
z=ppmt[2]-pbot[2];
printf("Z bottom %f\n",z);
gMC->Gspos("PBOT",1,"PMT ",0,0,z,0,"ONLY");
// Side cylinder glass
gMC->Gsvolu("POUT","TUBE",idtmed[2106-1],pglass,3);
z=ppmt[2]-pglass[2];
// printf("Z glass %f\n",z);
gMC->Gspos("POUT",1,"PMT ",0,0,z,0,"ONLY");
//PMT electrodes support structure
gMC->Gsvolu("PCER","TUBE",idtmed[2104-1],pcer,3);
gMC->Gsvolu("PSTE","TUBE",idtmed[2108-1],psteel,3);
z=-ppmt[2]+2*ptop[2]+0.3;;
// printf("Z Cer 1 %f\n",z);
for (is=1; is<=15; is++)
{
z=z+psteel[2]+pcer[2];
gMC->Gspos("PCER",is,"PMT",0,0,z,0,"ONLY");
z=z+psteel[2]+pcer[2];
gMC->Gspos("PSTE",is,"PMT",0,0,z,0,"ONLY");
}
// Divider
// Knob at the bottom of PMT baloon
gMC->Gsvolu("KNOB","TUBE",idtmed[2106-1],pknob,3);
z=-pdivider[2]+pknob[2];
// printf("zknob %f\n",z);
gMC->Gspos("KNOB",1,"DIVI",0,0,z,0,"ONLY");
gMC->Gsvolu("KNBO","TUBE",idtmed[2106-1],pknob_bot,3);
z=-pdivider[2]+2*pknob[2]+pknob_bot[2];
// printf("knobbot %f\n",z);
gMC->Gspos("KNBO",1,"DIVI ",0,0,z,0,"ONLY");
gMC->Gsvolu("KNVA","TUBE",idtmed[2106-1],pknob_vac,3);
z=-pdivider[2]+pknob_vac[2];
// printf("knobvac %f\n",z);
gMC->Gspos("KNVA",1,"DIVI",0,0,z,0,"ONLY");
//Steel pins + pin holes
gMC->Gsvolu("PINS","TUBE",idtmed[2108-1],ppins,3);
z=-pdivider[2]+ppins[2];
gMC->Gspos("PINS",1,"DIVI",0,0,z,0,"ONLY");
gMC->Gsvolu("HOLE","TUBE",idtmed[2111-1],phole,3);
z=-pdivider[2]+2*ppins[2]+phole[2];
gMC->Gspos("HOLE",1,"DIVI",0,0,z,0,"ONLY");
//Socket
gMC->Gsvolu("DIV1","TUBE",idtmed[2104-1],pdiv1,3);
z=-pdivider[2]+pdiv1[2];
gMC->Gspos("DIV1",1,"DIVI",0,0,z,0,"ONLY");
//Resistors
gMC->Gsvolu("DIV2","TUBE",idtmed[2101-1],pdiv2,3);
z=pdivider[2]-pdiv2[2];
gMC->Gspos("DIV2",1,"DIVI",0,0,z,0,"ONLY");
gMC->Gsvolu("DRES","TUBE",idtmed[2104-1],presist,3);
z=-pdiv2[2]+presist[2];
gMC->Gspos("DRES",1,"DIV2",0,0,z,0,"ONLY");
gMC->Gsvolu("DRIB","TUBE",idtmed[2109-1],pribber,3);
z=pdiv2[2]-pribber[2];
gMC->Gspos("DRIB",1,"DIV2",0,0,z,0,"ONLY");
// printf("z DRIB %f\n",z);
}
//------------------------------------------------------------------------
void AliSTARTv0::CreateMaterials()
{
Int_t ISXFLD = gAlice->Field()->Integ();
Float_t SXMGMX = gAlice->Field()->Max();
Float_t a,z,d,radl,absl,buf[1];
Int_t nbuf;
// 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;
// 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 acer[2],zcer[2],wcer[2]={0.972,0.028};
Float_t aal2o3[2] = { 26.981539,15.9994 };
Float_t zal2o3[2] = { 13.,8. };
Float_t wal2o3[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;
// AliMC* gMC = AliMC::GetMC();
// Int_t *idtmed = gAlice->Idtmed();
// Int_t imat;
//*** Definition Of avaible START materials ***
AliMaterial(0, "START Steel$", 55.850,26.,7.87,1.76,999);
AliMaterial(1, "START Vacuum$", 1.e-16,1.e-16,1.e-16,1.e16,999);
AliMaterial(2, "START Air$", 14.61, 7.3, .001205, 30423.,999);
AliMixture( 3, "Al2O3 $", aal2o3, zal2o3, denscer, -2, wal2o3);
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( 9, "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 $",aribber,zribber,denribber,-3,wribber);
//**
AliMedium(1, "START Air$", 2, 0, ISXFLD, SXMGMX, 10., .1, 1., .003, .003);
// AliMedium(2102, "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$", 9, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
AliMedium(6, "Glass$", 4, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
AliMedium(8, "Steel$", 0, 0, ISXFLD, SXMGMX, 1., .001, 1., .001, .001);
AliMedium(11, "Brass $", 6, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
AliMedium(9, "Ribber $", 7, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
}
//---------------------------------------------------------------------
void AliSTARTv0::DrawModule()
{
//
// Draw a shaded view of the Forward multiplicity detector version 0
//
//Set ALIC mother transparent
gMC->Gsatt("ALIC","SEEN",0);
//
//Set volumes visible
gMC->Gsatt("STRT","SEEN",0);
//gMC->Gsatt("SCIN","SEEN",1);
gMC->Gsatt("PMT ","SEEN",1);
gMC->Gsatt("DIVI","SEEN",1);
//
gMC->Gdopt("hide","on");
gMC->Gdopt("shad","on");
gMC->SetClipBox(".");
gMC->SetClipBox("*",0,1000,-1000,1000,-1000,1000);
gMC->DefaultRange();
gMC->Gdraw("alic",40,30,0,12,9.5,.2,0.2);
gMC->Gdhead(1111,"T-Zero detector");
gMC->Gdopt("hide","off");
}
//-------------------------------------------------------------------
void AliSTARTv0::Init()
{
// Initialises version 0 of the Forward Multiplicity Detector
//
//Int_t *idtmed = gAlice->Idtmed();
AliSTART::Init();
fIdSens1=gMC->VolId("PTOP");
printf("*** START version 0 initialized ***\n");
}
//-------------------------------------------------------------------
void AliSTARTv0::StepManager()
{
//
// Called for every step in the START Detector
//
Int_t id,copy,copy1;
static Float_t hits[7];
static Float_t edep;
static Int_t vol[2];
TLorentzVector pos;
TClonesArray &lhits = *fHits;
//AliMC* gMC=AliMC::GetMC();
// TGeant3* geant3= (TGeant3*)gMC;
if(!gMC->IsTrackAlive()) return; // particle has disappeared
Float_t charge = gMC->TrackCharge();
if(TMath::Abs(charge)<=0.) return; //take only charged particles
// gMC->Gpcxyz();
id=gMC->CurrentVolID(copy);
// printf("igauto %d\n",gMC->ctrak->igauto);
// printf("gMC->ckine->ipart %d",gMC->ckine->ipart);
// Check the sensetive volume
if(id==fIdSens1 )
{
if(gMC->IsTrackEntering())
{
gMC->CurrentVolOffID(2,copy);
vol[0]=copy;
gMC->CurrentVolOffID(1,copy1);
vol[1]=copy1;
gMC->TrackPosition(pos);
hits[0] = pos[0];
hits[1] = pos[1];
hits[2] = pos[2];
Float_t etot=gMC->Etot();
hits[4]=etot;
Int_t part= gMC->TrackPid();
hits[5]=part;
Float_t ttime=gMC->TrackTime();
hits[6]=ttime*1e9;
edep=0;
// Float_t xV=geant3->Gckine()->vert[0];
//Float_t yV=geant3->Gckine()->vert[1];
//Float_t zV=geant3->Gckine()->vert[2];
//Float_t tl=gMC -> TrackLength();
// if(hits[6]<2.4){
// for (i=0; i<=6; i++){
// printf(" HITS on START entr %f\n",hits[i]);}
//}
}
if(gMC->IsTrackInside())
{
Float_t de=gMC->Edep();
edep=edep+de;
// printf ("E deposition %f\n",edep);
// for (i=0; i<=6; i++){
// printf(" HITS on START inside %f\n",hits[i]); }
}
if(gMC->IsTrackExiting())
{
Float_t de=gMC->Edep();
edep=edep+de;
hits[3]=edep*1e3;
// for (i=0; i<=6; i++){
// printf(" HITS on START Exit %f\n",hits[i]); }
//for (i=0; i<=1; i++) { printf("START vol %d\n",vol[i]);}
new(lhits[fNhits++]) AliSTARThit(fIshunt,gAlice->CurrentTrack(),vol,hits); }
}
//---------------------------------------------------------------------
}
//}