/***************************************************************************
* 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. *
**************************************************************************/
/*
$Log$
Revision 1.29 2003/10/13 05:28:59 bnandi
gaspmd[2] value changed 0.25->7.0 because of overlap
Revision 1.28 2003/10/08 12:59:08 bnandi
zpos is positive
Revision 1.27 2003/10/08 12:56:58 bnandi
gaspmd[2] value changed from 7.0 to 0.25
Revision 1.26 2003/10/03 06:04:10 bnandi
z_psa and z_psb bugs fixed
Revision 1.25 2003/10/01 11:08:04 bnandi
changes for NewIO
Revision 1.24 2003/10/01 08:32:51 hristov
CurrentTrack replaced by GetCurrentTrackNumber
Revision 1.23 2003/10/01 05:07:51 bnandi
New geometry in new Alice Coordinate system
New rectangular geometry for ALICE PMD - Bedanga Mohanty and Y. P. Viyogi
June 2003
*/
//
///////////////////////////////////////////////////////////////////////////////
// //
// Photon Multiplicity Detector Version 1 //
// //
//Begin_Html
/*
*/
//End_Html
// //
///////////////////////////////////////////////////////////////////////////////
////
#include "AliPMDv1.h"
#include "AliRun.h"
#include "AliConst.h"
#include "AliMagF.h"
#include "Riostream.h"
#include
#include "AliMC.h"
static Int_t ncol_um1,ncol_um2, nrow_um1, nrow_um2;
static Int_t kdet;
static Float_t sm_length_ax,sm_length_ay;
static Float_t sm_length_bx,sm_length_by;
static Float_t zdist, zdist1;
static Float_t sm_thick, cell_radius, cell_wall, cell_depth;
static Float_t boundary, th_base, th_air, th_pcb;
static Float_t th_lead, th_steel;
ClassImp(AliPMDv1)
//_____________________________________________________________________________
AliPMDv1::AliPMDv1()
{
//
// Default constructor
//
fMedSens=0;
}
//_____________________________________________________________________________
AliPMDv1::AliPMDv1(const char *name, const char *title)
: AliPMD(name,title)
{
//
// Standard constructor
//
fMedSens=0;
}
//_____________________________________________________________________________
void AliPMDv1::CreateGeometry()
{
// Create geometry for Photon Multiplicity Detector
GetParameters();
CreateSupermodule();
CreatePMD();
}
//_____________________________________________________________________________
void AliPMDv1::CreateSupermodule()
{
//
// Creates the geometry of the cells of PMD, places them in supermodule
// which is a rectangular object.
// Basic unit is ECAR, a hexagonal cell made of Ar+CO2, which is
// placed inside another hexagonal cell made of Cu (ECCU) with larger
// radius, compared to ECAR. The difference in radius gives the dimension
// of half width of each cell wall.
// These cells are placed in a rectangular strip which are of 2 types
// EST1 and EST2
// 2 types of unit modules are made EUM1 and EUM2 which contains these strips
// placed repeatedly
// Each supermodule (ESMA, ESMB), made of G10 is filled with following
//components. They have 9 unit moudles inside them
// ESMA, ESMB are placed in EPMD along with EMPB (Pb converter)
// and EMFE (iron support)
Int_t i,j;
Float_t xb, yb, zb;
Int_t number;
Int_t ihrotm,irotdm;
const Float_t root3_2 = TMath::Sqrt(3.) /2.;
const Float_t root3 = TMath::Sqrt(3.);
Int_t *idtmed = fIdtmed->GetArray()-599;
AliMatrix(ihrotm, 90., 30., 90., 120., 0., 0.);
AliMatrix(irotdm, 90., 180., 90., 270., 180., 0.);
zdist = TMath::Abs(zdist1);
// First create the sensitive medium of a hexagon cell (ECAR)
// Inner hexagon filled with gas (Ar+CO2)
Float_t hexd2[10] = {0.,360.,6,2,-0.25,0.,0.23,0.25,0.,0.23};
hexd2[4] = -cell_depth/2.;
hexd2[7] = cell_depth/2.;
hexd2[6] = cell_radius - cell_wall;
hexd2[9] = cell_radius - cell_wall;
gMC->Gsvolu("ECAR", "PGON", idtmed[604], hexd2,10);
gMC->Gsatt("ECAR", "SEEN", 0);
// Place the sensitive medium inside a hexagon copper cell (ECCU)
// Outer hexagon made of Copper
Float_t hexd1[10] = {0.,360.,6,2,-0.25,0.,0.25,0.25,0.,0.25};
hexd1[4] = -cell_depth/2.;
hexd1[7] = cell_depth/2.;
hexd1[6] = cell_radius;
hexd1[9] = cell_radius;
gMC->Gsvolu("ECCU", "PGON", idtmed[614], hexd1,10);
gMC->Gsatt("ECCU", "SEEN", 0);
// Place inner hex (sensitive volume) inside outer hex (copper)
gMC->Gsposp("ECAR", 1, "ECCU", 0., 0., 0., 0, "ONLY", hexd2, 10);
// Now create Rectangular TWO strips (EST1, EST2)
// of 1 column and 48 or 96 cells length
// volume for first strip EST1 made of AIR
Float_t dbox1[3];
dbox1[0] = ncol_um1*cell_radius;
dbox1[1] = cell_radius/root3_2;
dbox1[2] = cell_depth/2.;
gMC->Gsvolu("EST1","BOX", idtmed[698], dbox1, 3);
gMC->Gsatt("EST1", "SEEN", 0);
// volume for second strip EST2
Float_t dbox2[3];
dbox2[0] = ncol_um2*cell_radius;
dbox2[1] = dbox1[1];
dbox2[2] = dbox1[2];
gMC->Gsvolu("EST2","BOX", idtmed[698], dbox2, 3);
gMC->Gsatt("EST2", "SEEN", 0);
// Place hexagonal cells ECCU placed inside EST1
yb = 0.;
zb = 0.;
xb = -(dbox1[0]) + cell_radius;
for (i = 1; i <= ncol_um1; ++i)
{
number = i;
gMC->Gsposp("ECCU", number, "EST1", xb,yb,zb, ihrotm, "ONLY", hexd1,10);
xb += (cell_radius*2.);
}
// Place hexagonal cells ECCU placed inside EST2
yb = 0.;
zb = 0.;
xb = -(dbox2[0]) + cell_radius;
for (i = 1; i <= ncol_um2; ++i)
{
number = i;
gMC->Gsposp("ECCU", number, "EST2", xb,yb,zb, ihrotm, "ONLY", hexd1,10);
xb += (cell_radius*2.);
}
// 2 types of rectangular shaped unit modules EUM1 and EUM2 (defined by BOX)
// Create EUM1
Float_t dbox3[3];
dbox3[0] = dbox1[0]+cell_radius/2.;
dbox3[1] = (dbox1[1]*nrow_um1)-(cell_radius*root3*(nrow_um1-1)/6.);
dbox3[2] = cell_depth/2.;
gMC->Gsvolu("EUM1","BOX", idtmed[698], dbox3, 3);
gMC->Gsatt("EUM1", "SEEN", 1);
// Place rectangular strips EST1 inside EUM1 unit module
yb = -dbox3[1]+dbox1[1];
for (j = 1; j <= nrow_um1; ++j)
{
if(j%2 == 0)
{
xb =cell_radius/2.0;
}
else
{
xb = -cell_radius/2.0;
}
number = j;
gMC->Gsposp("EST1",number, "EUM1", xb, yb , 0. , 0, "MANY",dbox1,3);
yb = (-dbox3[1]+dbox1[1])+j*1.0*cell_radius*root3;
}
// Create EUM2
Float_t dbox4[3];
dbox4[0] = dbox2[0]+cell_radius/2.;
dbox4[1] =(dbox2[1]*nrow_um2)-(cell_radius*root3*(nrow_um2-1)/6.);
dbox4[2] = dbox3[2];
gMC->Gsvolu("EUM2","BOX", idtmed[698], dbox4, 3);
gMC->Gsatt("EUM2", "SEEN", 1);
// Place rectangular strips EST2 inside EUM2 unit module
yb = -dbox4[1]+dbox2[1];
for (j = 1; j <= nrow_um2; ++j)
{
if(j%2 == 0)
{
xb =cell_radius/2.0;
}
else
{
xb = -cell_radius/2.0;
}
number = j;
gMC->Gsposp("EST2",number, "EUM2", xb, yb , 0. , 0, "MANY",dbox2,3);
yb = (-dbox4[1]+dbox2[1])+j*1.0*cell_radius*root3;
}
// 2 types of Rectangular shaped supermodules (BOX)
//each with 6 unit modules
// volume for SUPERMODULE ESMA
//Space added to provide a gapping for HV between UM's
Float_t dbox_sm1[3];
dbox_sm1[0] = 3.0*dbox3[0]+(2.0*0.025);
dbox_sm1[1] = 2.0*dbox3[1]+0.025;
dbox_sm1[2] = cell_depth/2.;
gMC->Gsvolu("ESMA","BOX", idtmed[698], dbox_sm1, 3);
gMC->Gsatt("ESMA", "SEEN", 1);
//Position the 6 unit modules in EMSA
Float_t x_a1,x_a2,x_a3,y_a1,y_a2;
x_a1 = -dbox_sm1[0] + dbox3[0];
x_a2 = 0.;
x_a3 = dbox_sm1[0] - dbox3[0];
y_a1 = dbox_sm1[1] - dbox3[1];
y_a2 = -dbox_sm1[1] + dbox3[1];
gMC->Gsposp("EUM1", 1, "ESMA", x_a1, y_a1, 0., 0, "ONLY",dbox3,3);
gMC->Gsposp("EUM1", 2, "ESMA", x_a2, y_a1, 0., 0, "ONLY",dbox3,3);
gMC->Gsposp("EUM1", 3, "ESMA", x_a3, y_a1, 0., 0, "ONLY",dbox3,3);
gMC->Gsposp("EUM1", 4, "ESMA", x_a1, y_a2, 0., 0, "ONLY",dbox3,3);
gMC->Gsposp("EUM1", 5, "ESMA", x_a2, y_a2, 0., 0, "ONLY",dbox3,3);
gMC->Gsposp("EUM1", 6, "ESMA", x_a3, y_a2, 0., 0, "ONLY",dbox3,3);
// volume for SUPERMODULE ESMB
//Space is added to provide a gapping for HV between UM's
Float_t dbox_sm2[3];
dbox_sm2[0] = 2.0*dbox4[0]+0.025;
dbox_sm2[1] = 3.0*dbox4[1]+(2.0*0.025);
dbox_sm2[2] = cell_depth/2.;
gMC->Gsvolu("ESMB","BOX", idtmed[698], dbox_sm2, 3);
gMC->Gsatt("ESMB", "SEEN", 1);
//Position the 6 unit modules in EMSB
Float_t x_b1,x_b2,y_b1,y_b2,y_b3;
x_b1 = -dbox_sm2[0] +dbox4[0];
x_b2 = dbox_sm2[0]-dbox4[0];
y_b1 =dbox_sm2[1]-dbox4[1];
y_b2 = 0.;
y_b3 = -dbox_sm2[1]+dbox4[1];
gMC->Gsposp("EUM2", 1, "ESMB", x_b1, y_b1, 0., 0, "ONLY",dbox4,3);
gMC->Gsposp("EUM2", 2, "ESMB", x_b2, y_b1, 0., 0, "ONLY",dbox4,3);
gMC->Gsposp("EUM2", 3, "ESMB", x_b1, y_b2, 0., 0, "ONLY",dbox4,3);
gMC->Gsposp("EUM2", 4, "ESMB", x_b2, y_b2, 0., 0, "ONLY",dbox4,3);
gMC->Gsposp("EUM2", 5, "ESMB", x_b1, y_b3, 0., 0, "ONLY",dbox4,3);
gMC->Gsposp("EUM2", 6, "ESMB", x_b2, y_b3, 0., 0, "ONLY",dbox4,3);
// Make a 3mm thick G10 Base plate for ESMA
Float_t dbox_g1a[3];
dbox_g1a[0] = dbox_sm1[0];
dbox_g1a[1] = dbox_sm1[1];
dbox_g1a[2] = th_base/2.;
gMC->Gsvolu("EBPA","BOX", idtmed[607], dbox_g1a, 3);
gMC->Gsatt("EBPA", "SEEN", 1);
// Make a 1.6mm thick G10 PCB for ESMA
Float_t dbox_g2a[3];
dbox_g2a[0] = dbox_sm1[0];
dbox_g2a[1] = dbox_sm1[1];
dbox_g2a[2] = th_pcb/2.;
gMC->Gsvolu("EPCA","BOX", idtmed[607], dbox_g2a, 3);
gMC->Gsatt("EPCA", "SEEN", 1);
// Make a Full module EFPA of AIR to place EBPA,
// 1mm AIR, EPCA, ESMA,EPCA for PMD
Float_t dbox_alla[3];
dbox_alla[0] = dbox_sm1[0];
dbox_alla[1] = dbox_sm1[1];
dbox_alla[2] = (th_base+0.1+th_pcb+dbox_sm1[2]+th_pcb)/2.;
gMC->Gsvolu("EFPA","BOX", idtmed[698], dbox_alla, 3);
gMC->Gsatt("EFPA", "SEEN", 1);
// Make a Full module EFCA of AIR to place EBPA,
// 1mm AIR, EPCA, ESMA,EPC for CPV
Float_t dbox_alla2[3];
dbox_alla2[0] = dbox_sm1[0];
dbox_alla2[1] = dbox_sm1[1];
dbox_alla2[2] = (th_base+0.1+th_pcb+dbox_sm1[2]+th_pcb)/2.;
gMC->Gsvolu("EFCA","BOX", idtmed[698], dbox_alla2, 3);
gMC->Gsatt("EFCA", "SEEN", 1);
// Now place everything in EFPA for PMD
Float_t z_bpa,z_pcba1,z_pcba2,z_sma;
z_pcba1 = - dbox_alla[2]+th_pcb/2.0;
gMC->Gsposp("EPCA", 1, "EFPA", 0., 0., z_pcba1, 0, "ONLY",dbox_g2a,3);
z_sma = z_pcba1+dbox_sm1[2];
gMC->Gsposp("ESMA", 1, "EFPA", 0., 0., z_sma, 0, "ONLY",dbox_sm1,3);
z_pcba2 = z_sma+th_pcb/2.0;
gMC->Gsposp("EPCA", 2, "EFPA", 0., 0., z_pcba2, 0, "ONLY",dbox_g2a,3);
z_bpa = z_pcba2+0.1+th_base/2.0; // 0.1 for 0.1 mm Air gap
gMC->Gsposp("EBPA", 1, "EFPA", 0., 0., z_bpa, 0, "ONLY",dbox_g1a,3);
// Now place everything in EFCA for CPV
Float_t z_bpa2,z_pcba12,z_pcba22,z_sma2;
z_bpa2 = - dbox_alla2[2]+th_base/2.0;
gMC->Gsposp("EBPA", 1, "EFCA", 0., 0., z_bpa2, 0, "ONLY",dbox_g1a,3);
z_pcba12 = z_bpa2+0.1+th_pcb/2.0;
gMC->Gsposp("EPCA", 1, "EFCA", 0., 0., z_pcba12, 0, "ONLY",dbox_g2a,3);
z_sma2 = z_pcba12+dbox_sm1[2];
gMC->Gsposp("ESMA", 1, "EFCA", 0., 0., z_sma2, 0, "ONLY",dbox_sm1,3);
z_pcba22 = z_sma2+th_pcb/2.0;
gMC->Gsposp("EPCA", 2, "EFCA", 0., 0., z_pcba22, 0, "ONLY",dbox_g2a,3);
// Make a 3mm thick G10 Base plate for ESMB
Float_t dbox_g1b[3];
dbox_g1b[0] = dbox_sm2[0];
dbox_g1b[1] = dbox_sm2[1];
dbox_g1b[2] = th_base/2.;
gMC->Gsvolu("EBPB","BOX", idtmed[607], dbox_g1b, 3);
gMC->Gsatt("EBPB", "SEEN", 1);
// Make a 1.6mm thick G10 PCB for ESMB
Float_t dbox_g2b[3];
dbox_g2b[0] = dbox_sm2[0];
dbox_g2b[1] = dbox_sm2[1];
dbox_g2b[2] = th_pcb/2.;
gMC->Gsvolu("EPCB","BOX", idtmed[607], dbox_g2b, 3);
gMC->Gsatt("EPCB", "SEEN", 1);
// Make a Full module EFPB of AIR to place EBPB,
//1mm AIR, EPCB, ESMB,EPCB for PMD
Float_t dbox_allb[3];
dbox_allb[0] = dbox_sm2[0];
dbox_allb[1] = dbox_sm2[1];
dbox_allb[2] = (th_base+0.1+th_pcb+dbox_sm2[2]+th_pcb)/2.;
gMC->Gsvolu("EFPB","BOX", idtmed[698], dbox_allb, 3);
gMC->Gsatt("EFPB", "SEEN", 1);
// Make a Full module EFCB of AIR to place EBPB,
//1mm AIR, EPCB, ESMB,EPCB for CPV
Float_t dbox_allb2[3];
dbox_allb2[0] = dbox_sm2[0];
dbox_allb2[1] = dbox_sm2[1];
dbox_allb2[2] = (th_base+0.1+th_pcb+dbox_sm2[2]+th_pcb)/2.;
gMC->Gsvolu("EFCB","BOX", idtmed[698], dbox_allb2, 3);
gMC->Gsatt("EFCB", "SEEN", 1);
// Now place everything in EFPB for PMD
Float_t z_bpb,z_pcbb1,z_pcbb2,z_smb;
z_pcbb1 = - dbox_allb[2]+th_pcb/2.0;
gMC->Gsposp("EPCB", 1, "EFPB", 0., 0., z_pcbb1, 0, "ONLY",dbox_g2b,3);
z_smb = z_pcbb1+dbox_sm2[2];
gMC->Gsposp("ESMB", 1, "EFPB", 0., 0., z_smb, 0, "ONLY",dbox_sm2,3);
z_pcbb2 = z_smb+th_pcb/2.0;
gMC->Gsposp("EPCB", 2, "EFPB", 0., 0., z_pcbb2, 0, "ONLY",dbox_g2b,3);
z_bpb = z_pcbb2+0.1+th_base/2.0; // 0.1 for 0.1 mm Air gap
gMC->Gsposp("EBPB", 1, "EFPB", 0., 0., z_bpb, 0, "ONLY",dbox_g1b,3);
// Now place everything in EFCB for CPV
Float_t z_bpb2,z_pcbb12,z_pcbb22,z_smb2;
z_bpb2 = - dbox_allb2[2]+th_base/2.0;
gMC->Gsposp("EBPB", 1, "EFCB", 0., 0., z_bpb2, 0, "ONLY",dbox_g1b,3);
z_pcbb12 = z_bpb2+0.1+th_pcb/2.0;
gMC->Gsposp("EPCB", 1, "EFCB", 0., 0., z_pcbb12, 0, "ONLY",dbox_g2b,3);
z_smb2 = z_pcbb12+dbox_sm2[2];
gMC->Gsposp("ESMB", 1, "EFCB", 0., 0., z_smb2, 0, "ONLY",dbox_sm2,3);
z_pcbb22 = z_smb2+th_pcb/2.0;
gMC->Gsposp("EPCB", 2, "EFCB", 0., 0., z_pcbb22, 0, "ONLY",dbox_g2b,3);
// Master MODULE EMPA of aluminum for PMD
//Float_t dbox_mm1[3];
dbox_mm1[0] = dbox_sm1[0]+boundary;
dbox_mm1[1] = dbox_sm1[1]+boundary;
dbox_mm1[2] = dbox_alla[2];
gMC->Gsvolu("EMPA","BOX", idtmed[603], dbox_mm1, 3);
gMC->Gsatt("EMPA", "SEEN", 1);
// Master MODULE EMCA of aluminum for CPV
//Float_t dbox_mm12[3];
dbox_mm12[0] = dbox_sm1[0]+boundary;
dbox_mm12[1] = dbox_sm1[1]+boundary;
dbox_mm12[2] = dbox_alla[2];
gMC->Gsvolu("EMCA","BOX", idtmed[603], dbox_mm12, 3);
gMC->Gsatt("EMCA", "SEEN", 1);
//Position EFMA inside EMMA for PMD and CPV
gMC->Gsposp("EFPA", 1, "EMPA", 0., 0., 0., 0, "ONLY",dbox_alla,3);
gMC->Gsposp("EFCA", 1, "EMCA", 0., 0., 0., 0, "ONLY",dbox_alla2,3);
// Master MODULE EMPB of aluminum for PMD
//Float_t dbox_mm2[3];
dbox_mm2[0] = dbox_sm2[0]+boundary;
dbox_mm2[1] = dbox_sm2[1]+boundary;
dbox_mm2[2] = dbox_allb[2];
gMC->Gsvolu("EMPB","BOX", idtmed[603], dbox_mm2, 3);
gMC->Gsatt("EMPB", "SEEN", 1);
// Master MODULE EMCB of aluminum for CPV
//Float_t dbox_mm22[3];
dbox_mm22[0] = dbox_sm2[0]+boundary;
dbox_mm22[1] = dbox_sm2[1]+boundary;
dbox_mm22[2] = dbox_allb[2];
gMC->Gsvolu("EMCB","BOX", idtmed[603], dbox_mm22, 3);
gMC->Gsatt("EMCB", "SEEN", 1);
//Position EFMB inside EMMB
gMC->Gsposp("EFPB", 1, "EMPB", 0., 0., 0., 0, "ONLY",dbox_allb,3);
gMC->Gsposp("EFCB", 1, "EMCB", 0., 0., 0., 0, "ONLY",dbox_allb2,3);
}
//_____________________________________________________________________________
void AliPMDv1::CreatePMD()
{
//
// Create final detector from supermodules
// -- Author : Bedanga and Viyogi June 2003
Float_t xp, yp, zp;
Int_t jhrot12,jhrot13, irotdm;
Int_t *idtmed = fIdtmed->GetArray()-599;
//VOLUMES Names : begining with "E" for all PMD volumes,
// --- DEFINE Iron, and lead volumes for SM A
Float_t dbox_pba[3];
dbox_pba[0] = sm_length_ax;
dbox_pba[1] = sm_length_ay;
dbox_pba[2] = th_lead/2.;
gMC->Gsvolu("EPBA","BOX", idtmed[600], dbox_pba, 3);
gMC->Gsatt ("EPBA", "SEEN", 0);
// Fe Support
Float_t dbox_fea[3];
dbox_fea[0] = sm_length_ax;
dbox_fea[1] = sm_length_ay;
dbox_fea[2] = th_steel/2.;
gMC->Gsvolu("EFEA","BOX", idtmed[618], dbox_fea, 3);
gMC->Gsatt ("EFEA", "SEEN", 0);
// --- DEFINE Iron, and lead volumes for SM B
Float_t dbox_pbb[3];
dbox_pbb[0] = sm_length_bx;
dbox_pbb[1] = sm_length_by;
dbox_pbb[2] = th_lead/2.;
gMC->Gsvolu("EPBB","BOX", idtmed[600], dbox_pbb, 3);
gMC->Gsatt ("EPBB", "SEEN", 0);
// Fe Support
Float_t dbox_feb[3];
dbox_feb[0] = sm_length_bx;
dbox_feb[1] = sm_length_by;
dbox_feb[2] = th_steel/2.;
gMC->Gsvolu("EFEB","BOX", idtmed[618], dbox_feb, 3);
gMC->Gsatt ("EFEB", "SEEN", 0);
// Gaspmd, the dimension of RECTANGULAR mother volume of PMD,
Float_t gaspmd[3] = {81.5,94.5,7.};
gaspmd[0] = sm_length_ax+sm_length_bx;
gaspmd[1] = sm_length_ay+sm_length_by;
gMC->Gsvolu("EPMD", "BOX", idtmed[698], gaspmd, 3);
gMC->Gsatt("EPMD", "SEEN", 1);
AliMatrix(irotdm, 90., 0., 90., 90., 180., 0.);
AliMatrix(jhrot12, 90., 180., 90., 270., 0., 0.);
AliMatrix(jhrot13, 90., 240., 90., 330., 0., 0.);
Float_t x_sma,y_sma;
Float_t x_smb,y_smb;
x_sma = -(sm_length_bx)/1.0;
y_sma = sm_length_by;
x_smb = -sm_length_ax;
y_smb = -sm_length_ay;
//Complete detector for Type A
//Position Super modules type A for both CPV and PMD in EPMD
Float_t z_psa,z_pba,z_fea,z_cva;
z_psa = - gaspmd[2] + sm_thick/2.;
gMC->Gsposp("EMPA", 1, "EPMD", x_sma, y_sma, z_psa, 0, "ONLY",dbox_mm1,3);
gMC->Gsposp("EMPA", 2, "EPMD", -x_sma, -y_sma, z_psa, jhrot12, "ONLY",dbox_mm1,3);
z_pba=z_psa+sm_thick/2.+dbox_pba[2];
gMC->Gsposp("EPBA", 1, "EPMD", x_sma, y_sma, z_pba, 0, "ONLY",dbox_pba,3);
gMC->Gsposp("EPBA", 2, "EPMD", -x_sma, -y_sma, z_pba, 0, "ONLY",dbox_pba,3);
z_fea=z_pba+dbox_pba[2]+dbox_fea[2];
gMC->Gsposp("EFEA", 1, "EPMD", x_sma, y_sma, z_fea, 0, "ONLY",dbox_fea,3);
gMC->Gsposp("EFEA", 2, "EPMD", -x_sma, -y_sma, z_fea, 0, "ONLY",dbox_fea,3);
z_cva=z_fea+dbox_fea[2]+sm_thick/2.;
gMC->Gsposp("EMCA", 1, "EPMD", x_sma, y_sma, z_cva, 0, "ONLY",dbox_mm12,3);
gMC->Gsposp("EMCA", 2, "EPMD", -x_sma,-y_sma, z_cva, jhrot12, "ONLY",dbox_mm12,3);
//Complete detector for Type B
//Position Super modules type B for both CPV and PMD in EPMD
Float_t z_psb,z_pbb,z_feb,z_cvb;
z_psb = - gaspmd[2] + sm_thick/2.;
gMC->Gsposp("EMPB", 3, "EPMD", x_smb, y_smb, z_psb, 0, "ONLY",dbox_mm2,3);
gMC->Gsposp("EMPB", 4, "EPMD", -x_smb, -y_smb, z_psb, jhrot12, "ONLY",dbox_mm2,3);
z_pbb=z_psb+sm_thick/2.+dbox_pbb[2];
gMC->Gsposp("EPBB", 3, "EPMD", x_smb, y_smb, z_pbb, 0, "ONLY",dbox_pbb,3);
gMC->Gsposp("EPBB", 4, "EPMD", -x_smb, -y_smb, z_pbb, 0, "ONLY",dbox_pbb,3);
z_feb=z_pbb+dbox_pbb[2]+dbox_feb[2];
gMC->Gsposp("EFEB", 3, "EPMD", x_smb, y_smb, z_feb, 0, "ONLY",dbox_feb,3);
gMC->Gsposp("EFEB", 4, "EPMD", -x_smb, -y_smb, z_feb, 0, "ONLY",dbox_feb,3);
z_cvb=z_feb+dbox_feb[2]+sm_thick/2.;
gMC->Gsposp("EMCB", 3, "EPMD", x_smb, y_smb, z_cvb, 0, "ONLY",dbox_mm22,3);
gMC->Gsposp("EMCB", 4, "EPMD", -x_smb,-y_smb, z_cvb, jhrot12, "ONLY",dbox_mm22,3);
// --- Place the EPMD in ALICE
xp = 0.;
yp = 0.;
zp = zdist1;
//Position Full PMD in ALICE
gMC->Gsposp("EPMD", 1, "ALIC", xp,yp,zp, 0, "ONLY",gaspmd,3);
}
//_____________________________________________________________________________
void AliPMDv1::DrawModule()
{
cout << " Inside Draw Modules " << endl;
//
// Draw a shaded view of the Photon Multiplicity Detector
//
gMC->Gsatt("*", "seen", -1);
gMC->Gsatt("alic", "seen", 0);
//
// Set the visibility of the components
//
gMC->Gsatt("ECAR","seen",0);
gMC->Gsatt("ECCU","seen",1);
gMC->Gsatt("EST1","seen",1);
gMC->Gsatt("EST2","seen",1);
gMC->Gsatt("EUM1","seen",1);
gMC->Gsatt("EUM2","seen",1);
gMC->Gsatt("ESMA","seen",1);
gMC->Gsatt("EPMD","seen",1);
//
gMC->Gdopt("hide", "on");
gMC->Gdopt("shad", "on");
gMC->Gsatt("*", "fill", 7);
gMC->SetClipBox(".");
gMC->SetClipBox("*", 0, 3000, -3000, 3000, -6000, 6000);
gMC->DefaultRange();
gMC->Gdraw("alic", 40, 30, 0, 22, 20.5, .02, .02);
gMC->Gdhead(1111, "Photon Multiplicity Detector Version 1");
//gMC->Gdman(17, 5, "MAN");
gMC->Gdopt("hide", "off");
cout << " Outside Draw Modules " << endl;
}
//_____________________________________________________________________________
void AliPMDv1::CreateMaterials()
{
cout << " Inside create materials " << endl;
//
// Create materials for the PMD
//
// ORIGIN : Y. P. VIYOGI
//
// --- The Argon- CO2 mixture ---
Float_t ag[2] = { 39.95 };
Float_t zg[2] = { 18. };
Float_t wg[2] = { .7,.3 };
Float_t dar = .001782; // --- Ar density in g/cm3 ---
// --- CO2 ---
Float_t ac[2] = { 12.,16. };
Float_t zc[2] = { 6.,8. };
Float_t wc[2] = { 1.,2. };
Float_t dc = .001977;
Float_t dco = .002; // --- CO2 density in g/cm3 ---
Float_t absl, radl, a, d, z;
Float_t dg;
Float_t x0ar;
Float_t buf[1];
Int_t nbuf;
Float_t asteel[4] = { 55.847,51.9961,58.6934,28.0855 };
Float_t zsteel[4] = { 26.,24.,28.,14. };
Float_t wsteel[4] = { .715,.18,.1,.005 };
Int_t *idtmed = fIdtmed->GetArray()-599;
Int_t isxfld = gAlice->Field()->Integ();
Float_t sxmgmx = gAlice->Field()->Max();
// --- Define the various materials for GEANT ---
AliMaterial(1, "Pb $", 207.19, 82., 11.35, .56, 18.5);
x0ar = 19.55 / dar;
AliMaterial(2, "Argon$", 39.95, 18., dar, x0ar, 6.5e4);
AliMixture(3, "CO2 $", ac, zc, dc, -2, wc);
AliMaterial(4, "Al $", 26.98, 13., 2.7, 8.9, 18.5);
AliMaterial(6, "Fe $", 55.85, 26., 7.87, 1.76, 18.5);
AliMaterial(7, "W $", 183.85, 74., 19.3, .35, 10.3);
AliMaterial(8, "G10 $", 20., 10., 1.7, 19.4, 999.);
AliMaterial(9, "SILIC$", 28.09, 14., 2.33, 9.36, 45.);
AliMaterial(10, "Be $", 9.01, 4., 1.848, 35.3, 36.7);
AliMaterial(15, "Cu $", 63.54, 29., 8.96, 1.43, 15.);
AliMaterial(16, "C $", 12.01, 6., 2.265, 18.8, 49.9);
AliMaterial(17, "POLYCARBONATE $", 20., 10., 1.2, 34.6, 999.);
AliMixture(19, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel);
// AliMaterial(31, "Xenon$", 131.3, 54., dxe, x0xe, 6.5e4);
AliMaterial(96, "MYLAR$", 8.73, 4.55, 1.39, 28.7, 62.);
AliMaterial(97, "CONCR$", 20., 10., 2.5, 10.7, 40.);
AliMaterial(98, "Vacum$", 1e-9, 1e-9, 1e-9, 1e16, 1e16);
AliMaterial(99, "Air $", 14.61, 7.3, .0012, 30420., 67500.);
// define gas-mixtures
char namate[21];
gMC->Gfmate((*fIdmate)[3], namate, a, z, d, radl, absl, buf, nbuf);
ag[1] = a;
zg[1] = z;
dg = (dar * 4 + dco) / 5;
AliMixture(5, "ArCO2$", ag, zg, dg, 2, wg);
// Define tracking media
AliMedium(1, "Pb conv.$", 1, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1);
AliMedium(7, "W conv.$", 7, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1);
AliMedium(8, "G10plate$", 8, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1);
AliMedium(4, "Al $", 4, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1);
AliMedium(6, "Fe $", 6, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1);
AliMedium(5, "ArCO2 $", 5, 1, 0, isxfld, sxmgmx, .1, .1, .1, .1);
AliMedium(9, "SILICON $", 9, 1, 0, isxfld, sxmgmx, .1, .1, .1, .1);
AliMedium(10, "Be $", 10, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1);
AliMedium(98, "Vacuum $", 98, 0, 0, isxfld, sxmgmx, 1., .1, .1, 10);
AliMedium(99, "Air gaps$", 99, 0, 0, isxfld, sxmgmx, 1., .1, .1, .1);
AliMedium(15, "Cu $", 15, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1);
AliMedium(16, "C $", 16, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1);
AliMedium(17, "PLOYCARB$", 17, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1);
AliMedium(19, " S steel$", 19, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1);
// AliMedium(31, "Xenon $", 31, 1, 0, isxfld, sxmgmx, .1, .1, .1, .1);
// --- Generate explicitly delta rays in the iron, aluminium and lead ---
gMC->Gstpar(idtmed[600], "LOSS", 3.);
gMC->Gstpar(idtmed[600], "DRAY", 1.);
gMC->Gstpar(idtmed[603], "LOSS", 3.);
gMC->Gstpar(idtmed[603], "DRAY", 1.);
gMC->Gstpar(idtmed[604], "LOSS", 3.);
gMC->Gstpar(idtmed[604], "DRAY", 1.);
gMC->Gstpar(idtmed[605], "LOSS", 3.);
gMC->Gstpar(idtmed[605], "DRAY", 1.);
gMC->Gstpar(idtmed[606], "LOSS", 3.);
gMC->Gstpar(idtmed[606], "DRAY", 1.);
gMC->Gstpar(idtmed[607], "LOSS", 3.);
gMC->Gstpar(idtmed[607], "DRAY", 1.);
// --- Energy cut-offs in the Pb and Al to gain time in tracking ---
// --- without affecting the hit patterns ---
gMC->Gstpar(idtmed[600], "CUTGAM", 1e-4);
gMC->Gstpar(idtmed[600], "CUTELE", 1e-4);
gMC->Gstpar(idtmed[600], "CUTNEU", 1e-4);
gMC->Gstpar(idtmed[600], "CUTHAD", 1e-4);
gMC->Gstpar(idtmed[605], "CUTGAM", 1e-4);
gMC->Gstpar(idtmed[605], "CUTELE", 1e-4);
gMC->Gstpar(idtmed[605], "CUTNEU", 1e-4);
gMC->Gstpar(idtmed[605], "CUTHAD", 1e-4);
gMC->Gstpar(idtmed[606], "CUTGAM", 1e-4);
gMC->Gstpar(idtmed[606], "CUTELE", 1e-4);
gMC->Gstpar(idtmed[606], "CUTNEU", 1e-4);
gMC->Gstpar(idtmed[606], "CUTHAD", 1e-4);
gMC->Gstpar(idtmed[603], "CUTGAM", 1e-4);
gMC->Gstpar(idtmed[603], "CUTELE", 1e-4);
gMC->Gstpar(idtmed[603], "CUTNEU", 1e-4);
gMC->Gstpar(idtmed[603], "CUTHAD", 1e-4);
gMC->Gstpar(idtmed[609], "CUTGAM", 1e-4);
gMC->Gstpar(idtmed[609], "CUTELE", 1e-4);
gMC->Gstpar(idtmed[609], "CUTNEU", 1e-4);
gMC->Gstpar(idtmed[609], "CUTHAD", 1e-4);
// --- Prevent particles stopping in the gas due to energy cut-off ---
gMC->Gstpar(idtmed[604], "CUTGAM", 1e-5);
gMC->Gstpar(idtmed[604], "CUTELE", 1e-5);
gMC->Gstpar(idtmed[604], "CUTNEU", 1e-5);
gMC->Gstpar(idtmed[604], "CUTHAD", 1e-5);
gMC->Gstpar(idtmed[604], "CUTMUO", 1e-5);
cout << " Outside create materials " << endl;
}
//_____________________________________________________________________________
void AliPMDv1::Init()
{
//
// Initialises PMD detector after it has been built
//
Int_t i;
kdet=1;
//
cout << " Inside Init " << endl;
if(fDebug) {
printf("\n%s: ",ClassName());
for(i=0;i<35;i++) printf("*");
printf(" PMD_INIT ");
for(i=0;i<35;i++) printf("*");
printf("\n%s: ",ClassName());
printf(" PMD simulation package (v1) initialised\n");
printf("%s: parameters of pmd\n",ClassName());
printf("%s: %10.2f %10.2f %10.2f \
%10.2f\n",ClassName(),cell_radius,cell_wall,cell_depth,zdist1 );
printf("%s: ",ClassName());
for(i=0;i<80;i++) printf("*");
printf("\n");
}
Int_t *idtmed = fIdtmed->GetArray()-599;
fMedSens=idtmed[605-1];
}
//_____________________________________________________________________________
void AliPMDv1::StepManager()
{
//
// Called at each step in the PMD
//
Int_t copy;
Float_t hits[4], destep;
Float_t center[3] = {0,0,0};
Int_t vol[8]; //5
//const char *namep;
if(gMC->GetMedium() == fMedSens && (destep = gMC->Edep())) {
gMC->CurrentVolID(copy);
//namep=gMC->CurrentVolName();
//printf("Current vol is %s \n",namep);
vol[0]=copy;
gMC->CurrentVolOffID(1,copy);
//namep=gMC->CurrentVolOffName(1);
//printf("Current vol 11 is %s \n",namep);
vol[1]=copy;
gMC->CurrentVolOffID(2,copy);
//namep=gMC->CurrentVolOffName(2);
//printf("Current vol 22 is %s \n",namep);
vol[2]=copy;
// if(strncmp(namep,"EHC1",4))vol[2]=1;
gMC->CurrentVolOffID(3,copy);
//namep=gMC->CurrentVolOffName(3);
//printf("Current vol 33 is %s \n",namep);
vol[3]=copy;
gMC->CurrentVolOffID(4,copy);
//namep=gMC->CurrentVolOffName(4);
//printf("Current vol 44 is %s \n",namep);
vol[4]=copy;
gMC->CurrentVolOffID(5,copy);
//namep=gMC->CurrentVolOffName(5);
//printf("Current vol 55 is %s \n",namep);
vol[5]=copy;
gMC->CurrentVolOffID(6,copy);
//namep=gMC->CurrentVolOffName(6);
//printf("Current vol 66 is %s \n",namep);
vol[6]=copy;
gMC->CurrentVolOffID(7,copy);
//namep=gMC->CurrentVolOffName(7);
//printf("Current vol 77 is %s \n",namep);
vol[7]=copy;
//printf("volume number %4d %4d %4d %4d %4d %4d %4d %4d %10.3f \n",vol[0],vol[1],vol[2],vol[3],vol[4],vol[5],vol[6],vol[7],destep*1000000);
gMC->Gdtom(center,hits,1);
hits[3] = destep*1e9; //Number in eV
AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol, hits);
}
}
//------------------------------------------------------------------------
// Get parameters
void AliPMDv1::GetParameters()
{
const Float_t root3 = TMath::Sqrt(3.);
const Float_t root3_2 = TMath::Sqrt(3.) /2.;
//
cell_radius=0.25;
cell_wall=0.02;
cell_depth=0.25 * 2.;
//
ncol_um1 = 48;
ncol_um2 = 96;
nrow_um1 = 96;//each strip has 1 row
nrow_um2 = 48;//each strip has 1 row
//
sm_length_ax = (3.0*(ncol_um1*cell_radius+cell_radius/2.)+(2.0*0.025)) + 0.7;
sm_length_bx = 2.0*(ncol_um2*cell_radius+cell_radius/2.)+0.025+0.7;
sm_length_ay = 2.0*(((cell_radius/root3_2)*nrow_um1)-(cell_radius*root3*(nrow_um1-1)/6.))+0.025+0.7;
sm_length_by = 3.0*(((cell_radius/root3_2)*nrow_um2)-(cell_radius*root3*(nrow_um2-1)/6.))+(2.0*0.025)+0.7;
//
boundary=0.7;
//
th_base=0.3;
th_air=0.1;
th_pcb=0.16;
//
sm_thick = th_base + th_air + th_pcb + cell_depth + th_pcb + th_air + th_pcb;
//
th_lead=1.5;
th_steel=0.5;
zdist1 = 361.5;
}