Made more robust
[u/mrichter/AliRoot.git] / EMCAL / AliEMCALv0.cxx
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2012850d 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
2012850d 15/* $Id$ */
16
17//_________________________________________________________________________
18// Implementation version v0 of EMCAL Manager class
19// An object of this class does not produce hits nor digits
20// It is the one to use if you do not want to produce outputs in TREEH or TREED
ffa6d63b 21// This class places a Geometry of the EMCAL in the ALICE Detector as defined in AliEMCALGeometry.cxx
2012850d 22//*-- Author: Yves Schutz (SUBATECH)
b13bbe81 23//*-- and : Sahal Yacoob (LBL / UCT)
2012850d 24
09641ef5 25// This Version of AliEMCALv0 reduces the number of volumes placed in XEN1 (the envelope) to less than five hundred
26// The Envelope is Placed in Alice, And the Aluminium layer. Mini envelopes (XU) are then placed in XEN1.
fdebddeb 27// Each mini envelope contains 1 scintillator, and 1 lead layer, except the last one which contains just one scintillator layer.
09641ef5 28// At the moment I cannot place the 36 and above layers in the mini envelopes so all layers are still placed in XEN1
29
30
2012850d 31// --- ROOT system ---
a1469a24 32
d64c959b 33//#include "TPGON.h"
2012850d 34#include "TTUBS.h"
35#include "TNode.h"
2012850d 36#include "TGeometry.h"
5d12ce38 37#include "TVirtualMC.h"
d64c959b 38#include "TArrayI.h"
a1469a24 39
2012850d 40// --- Standard library ---
41
d64c959b 42//#include <stdio.h>
2012850d 43
44// --- AliRoot header files ---
45
46#include "AliEMCALv0.h"
47#include "AliEMCALGeometry.h"
48#include "AliRun.h"
2012850d 49
50ClassImp(AliEMCALv0)
51
b13bbe81 52//______________________________________________________________________
2012850d 53AliEMCALv0::AliEMCALv0(const char *name, const char *title):
05a92d59 54 AliEMCAL(name,title)
55{
56 // ctor : title is used to identify the layout
57 GetGeometry() ;
a1469a24 58
2012850d 59}
a1469a24 60
b13bbe81 61//______________________________________________________________________
05a92d59 62void AliEMCALv0::BuildGeometry()
63{
b13bbe81 64 // Display Geometry for display.C
2012850d 65
b13bbe81 66 const Int_t kColorArm1 = kBlue ;
91e9918b 67
05a92d59 68 AliEMCALGeometry * geom = GetGeometry() ;
a1469a24 69
05a92d59 70 // Define the shape of the Calorimeter
5502a765 71 TNode * top = gAlice->GetGeometry()->GetNode("alice") ;
b13bbe81 72 new TTUBS("Envelop1", "Tubs that contains arm 1", "void",
05a92d59 73 geom->GetEnvelop(0), // rmin
fdebddeb 74 geom->GetEnvelop(1) +30 ,// rmax
05a92d59 75 geom->GetEnvelop(2)/2.0, // half length in Z
fdebddeb 76 geom->GetArm1PhiMin(), // minimum phi angle
77 geom->GetArm1PhiMax() // maximum phi angle
b13bbe81 78 );
a1469a24 79
ffa6d63b 80 // Place the Node
5502a765 81 top->cd();
5502a765 82 TNode * envelop1node = new TNode("Envelop1", "Arm1 Envelop", "Envelop1"
83 ,0., 0., 0., "") ;
b13bbe81 84 envelop1node->SetLineColor(kColorArm1) ;
85 fNodes->Add(envelop1node) ;
2012850d 86}
a1469a24 87
b13bbe81 88//______________________________________________________________________
05a92d59 89void AliEMCALv0::CreateGeometry()
90{
f590bb15 91 // Create the EMCAL geometry for Geant
92 // Geometry of a tower
93 //|-----------------------------------------------------| XEN1
94 //| | | |
95 //| | Al thickness = GetAlFrontThickness() | |
96 //| | | |
97 //| | | |
98 //| | | |
99 //| ------------------------------------------------- |
100 //| | Air Gap = GetGap2Active() | |
101 //| | | |
102 //| ------------------------------------------------- |
ca148d5b 103 //| | XU1 : XPST (ECAL e = GetECScintThick() ) | |
f590bb15 104 //| ------------------------------------------------- |
ca148d5b 105 //| | XU1 : XPBX (ECAL e = GetECPbRadThick() ) | |
f590bb15 106 //| ------------------------------------------------- |
ca148d5b 107 //| | XU1 : XPST (ECAL e = GetECScintThick() | |
f590bb15 108 //| ------------------------------------------------- |
ca148d5b 109 //| | XU1 : XPBX (ECAL e = GetECPbRadThick() ) | |
f590bb15 110 //| ------------------------------------------------- |
fdebddeb 111 //| etc ..... GetNECLayers() - 1 times |
ca148d5b 112 //| ------------------------------------------------- |
fdebddeb 113 //| | XUNLayer : XPST (ECAL e = GetECScintThick() | |
ca148d5b 114 //| ------------------------------------------------- |
fdebddeb 115
a1469a24 116 Float_t etamin,etamax;
3ca04a8a 117 Float_t *dum=0;
118
05a92d59 119 AliEMCALGeometry * geom = GetGeometry() ;
a1469a24 120
05a92d59 121 if(!(geom->IsInitialized())){
a1469a24 122 Error("CreateGeometry","EMCAL Geometry class has not been set up.");
b13bbe81 123 } // end if
a1469a24 124
b13bbe81 125 // Get pointer to the array containing media indices
126 Int_t *idtmed = fIdtmed->GetArray() - 1599 ;
e13bd4f0 127
09641ef5 128 Int_t idrotm = 1;
129 AliMatrix(idrotm, 90.0, 0., 90.0, 90.0, 0.0, 0.0) ;
130
c13b5a7c 131 // Create the EMCAL Mother Volume (a polygone) within which to place the Detector and named XEN1
132
133 Float_t envelopA[10];
134 envelopA[0] = geom->GetArm1PhiMin(); // minimum phi angle
135 envelopA[1] = geom->GetArm1PhiMax() - geom->GetArm1PhiMin(); // angular range in phi
136 envelopA[2] = geom->GetNPhi(); // number of sections in phi
137 envelopA[3] = 2; // 2 z coordinates
c27ad3fb 138 envelopA[4] = geom->ZFromEtaR(geom->GetEnvelop(1),
c13b5a7c 139 geom->GetArm1EtaMin()); // z coordinate 1
fdebddeb 140 //add some padding for mother volume
c13b5a7c 141 envelopA[5] = geom->GetEnvelop(0) ; // rmin at z1
142 envelopA[6] = geom->GetEnvelop(1) ; // rmax at z1
c27ad3fb 143 envelopA[7] = geom->ZFromEtaR(geom->GetEnvelop(1),
c13b5a7c 144 geom->GetArm1EtaMax()); // z coordinate 2
145 envelopA[8] = envelopA[5] ; // radii are the same.
146 envelopA[9] = envelopA[6] ; // radii are the same.
147
148 gMC->Gsvolu("XEN1", "PGON ", idtmed[1599], envelopA, 10) ; // Polygone filled with air
09641ef5 149
c13b5a7c 150 // Position the EMCAL Mother Volume (XEN1) in Alice (ALIC)
09641ef5 151
c13b5a7c 152 gMC->Gspos("XEN1", 1, "ALIC", 0.0, 0.0, 0.0, idrotm, "ONLY") ;
153
fdebddeb 154 if (gDebug==2) {
155 printf("CreateGeometry: XEN1 = %f, %f\n", envelopA[5], envelopA[6]);
156 printf("CreateGeometry: XU0 = %f, %f\n", envelopA[5], envelopA[6]);
157 }
158 // Create mini-envelopes which will contain the Tower scintillator-radiator
c13b5a7c 159
a63e0d5e 160 TString label ;
fdebddeb 161
a63e0d5e 162 envelopA[5] = envelopA[5] + geom->GetGap2Active() // we are at the first scintllator
163 + geom->GetAlFrontThickness(); // rmin at z1
164 envelopA[6] = envelopA[5] ;
165
c27ad3fb 166
f590bb15 167 Int_t i ;
a63e0d5e 168
fdebddeb 169 Int_t nLayers = geom->GetNECLayers();
a63e0d5e 170
fdebddeb 171 for (i = 0; i < (nLayers-1); i++ ){
a1469a24 172 label = "XU" ;
a1469a24 173 label += i ;
a63e0d5e 174 Float_t tseg ;
fdebddeb 175 tseg = geom->GetECScintThick()+geom->GetECPbRadThick(); // thickness of scintillator+Pb in E Cal
c13b5a7c 176 envelopA[5] = envelopA[6] ; // rmin at z1
c27ad3fb 177 envelopA[4] = geom->ZFromEtaR(envelopA[5] + tseg,
c13b5a7c 178 geom->GetArm1EtaMin()); // z coordinate 1
c27ad3fb 179 envelopA[7] = geom->ZFromEtaR(envelopA[5] + tseg,
c13b5a7c 180 geom->GetArm1EtaMax()); // z coordinate 2
a63e0d5e 181 envelopA[6] = envelopA[5] + tseg ; // rmax at z1
c13b5a7c 182 envelopA[8] = envelopA[5] ; // radii are the same.
183 envelopA[9] = envelopA[6] ; // radii are the same.
184
185 gMC->Gsvolu(label.Data(), "PGON", idtmed[1599], envelopA, 10);// Polygone filled with air
a1469a24 186
c13b5a7c 187 // Position XUi in XEN1
188
a1469a24 189 gMC->Gspos(label.Data(), 1, "XEN1", 0.0, 0.0, 0.0, idrotm, "ONLY") ;
c13b5a7c 190
c27ad3fb 191 if (gDebug == 2)
fdebddeb 192 printf("CreateGeometry: XU%d = %f, %f\n", i, envelopA[5], envelopA[6]);
c13b5a7c 193
a1469a24 194 } // end i
f590bb15 195
c13b5a7c 196
fdebddeb 197 // Create one mini-envelope which will contain the last scintillator XU(nlayers-1) because there is one more scintillator than Pb layer XU(nlayers-1)
c13b5a7c 198
f590bb15 199 label = "XU" ;
200 label += i ;
c13b5a7c 201 envelopA[5] = envelopA[6] ; // rmin at z1
fdebddeb 202 envelopA[4] = geom->ZFromEtaR(envelopA[5] + geom->GetECScintThick(),
c13b5a7c 203 geom->GetArm1EtaMin()); // z coordinate 1
fdebddeb 204 envelopA[7] = geom->ZFromEtaR(envelopA[5] + geom->GetECScintThick(),
c13b5a7c 205 geom->GetArm1EtaMax()); // z coordinate 2
fdebddeb 206 envelopA[6] = envelopA[5] + geom->GetECScintThick() ; // rmax at z1
c13b5a7c 207 envelopA[8] = envelopA[5] ; // radii are the same.
208 envelopA[9] = envelopA[6] ; // radii are the same.
209
210 gMC->Gsvolu(label.Data(), "PGON", idtmed[1599], envelopA, 10); // Polygone filled with air
211
a63e0d5e 212 // Position the last minienvelope in XEN1
c13b5a7c 213
f590bb15 214 gMC->Gspos(label.Data(), 1, "XEN1", 0.0, 0.0, 0.0, idrotm, "ONLY") ;
fdebddeb 215
c27ad3fb 216 if(gDebug == 2)
fdebddeb 217 printf("CreateGeometry: XEN%d = %f, %f\n", i, envelopA[5], envelopA[6]);
f590bb15 218
a1469a24 219 // Create the shapes of active material (LEAD/Aluminium/Scintillator)
a1469a24 220 // to be placed
ffa6d63b 221 Float_t envelopB[10]; // First Layer of Aluminium
222 Float_t envelopC[10]; // Scintillator Layers
a1469a24 223 Float_t envelopD[10]; // Lead Layers
224
c13b5a7c 225 envelopC[0] = envelopD[0] = envelopB[0] = envelopA[0] ; // starting position in Phi
226 envelopC[1] = envelopD[1] = envelopB[1] = envelopA[1] ; // angular range in phi
227 envelopC[2] = envelopD[2] = envelopB[2] = envelopA[2] ; // number of sections in Phi
fdebddeb 228 envelopC[3] = envelopD[3] = envelopB[3] = envelopA[3] ; // 2 z coordinates
a1469a24 229
c27ad3fb 230 Float_t dist = geom->GetEnvelop(0) + geom->GetAlFrontThickness() + geom->GetGap2Active() ;
231 envelopB[4] = geom->ZFromEtaR(dist,
c13b5a7c 232 geom->GetArm1EtaMin()); // z co-ordinate 1
233 envelopB[5] = geom->GetEnvelop(0) ; // rmin at z1
234 envelopB[6] = envelopB[5] + geom->GetAlFrontThickness();// rmax at z1
c27ad3fb 235 envelopB[7] = geom->ZFromEtaR(dist,
c13b5a7c 236 geom->GetArm1EtaMax()); // z co-ordinate 2
237 envelopB[8] = envelopB[5] ; // radii are the same.
238 envelopB[9] = envelopB[6] ; // radii are the same.
ffa6d63b 239
c13b5a7c 240 // Define active volumes completely
241
242 gMC->Gsvolu("XALU", "PGON", idtmed[1602], envelopB, 10); // PGON filled with Al
243
244 gMC->Gspos("XALU", 1, "XEN1", 0.0, 0.0, 0.0 , idrotm, "ONLY") ; // Position Aluminium Layer in XEN1
a1469a24 245
c13b5a7c 246 gMC->Gsvolu("XPST", "PGON", idtmed[1601], dum, 0); // PGON filled with Scintillator (shape to be defined by GSPOSP)
247
248 gMC->Gsvolu("XPBX", "PGON", idtmed[1600], dum, 0); // PGON filled with Lead (shape to be defined by GSPOSP)
249
fdebddeb 250 //gMC->Gsvolu("XCUX", "PGON", idtmed[1603], dum, 0); // PGON filled with Copper (shape to be defined by GSPOSP)
a63e0d5e 251
c13b5a7c 252 gMC->Gsdvn("XPHI", "XPST", geom->GetNPhi(), 2); // Divide eta section of scintillators into phi segments.
253
254 // Position alternatively scintillator and Lead Layers in XUi.
a1469a24 255
c13b5a7c 256 envelopD[6] = envelopB[6] + geom->GetGap2Active() ;// gap between Al layer and XU0
a63e0d5e 257
258 for (int i = 0; i < nLayers; i++ ){
259 label = "XU" ;
fdebddeb 260 label += i ; // we will place one layer in each mini envelope)
a63e0d5e 261
262 Float_t scthick ; // scintillator thickness
fdebddeb 263 scthick = geom->GetECScintThick() ;
a63e0d5e 264
265 envelopC[5] = envelopD[6] ; //rmin
266 envelopC[6] = envelopC[5] + scthick ; //rmax
267 envelopC[8] = envelopC[5] ; //rmin
268 envelopC[9] = envelopC[6] ; //rmax
269
c27ad3fb 270 if(gDebug == 2 )
fdebddeb 271 printf("CreateGeometry: volume = %s, name = XPST thickness = %f deb = %f/%f fin = %f/%f", label.Data(), scthick, envelopC[5], envelopC[8], envelopC[6], envelopC[9]) ;
a63e0d5e 272
273 for (int j =0; j < (geom->GetNEta()) ; j++){
274 etamin = geom->GetArm1EtaMin()+
275 (j*geom->GetDeltaEta());
276 etamax = geom->GetArm1EtaMin()+
277 ((j+1)*geom->GetDeltaEta());
278 envelopC[4] = geom->ZFromEtaR(envelopC[5],etamin); //z begin
279 envelopC[7] = geom->ZFromEtaR(envelopC[5],etamax);// z end
280
281 gMC->Gsposp("XPST",1+j+i*(geom->GetNEta()), label.Data(),
282 0.0, 0.0, 0.0 , idrotm, "ONLY", envelopC, 10); // Position and define layer
283 } // end for j
284
a63e0d5e 285 Float_t radthick ; // radiator thickness
286 TString radname ; // radiator name
fdebddeb 287 radthick = geom->GetECPbRadThick();
288 radname = "XPBX" ;
a63e0d5e 289
290 if ( i < nLayers -1 ) { // except for the last XU which contains only one scintillator layer
291
292 envelopD[5] = envelopC[6] ; //rmin
293 envelopD[8] = envelopD[5] ; //rmin
294 envelopD[6] = envelopD[5] + radthick ; // rmax
a63e0d5e 295 envelopD[9] = envelopD[6] ; //rmax
c27ad3fb 296
297 if(gDebug == 2 )
fdebddeb 298 printf("CreateGeometry: volume = %s, name = %s thickness = %f deb = %f/%f fin = %f/%f", label.Data(), radname.Data(), radthick, envelopD[5], envelopD[8], envelopD[6], envelopD[9]) ;
a63e0d5e 299
300 for (int j =0; j < (geom->GetNEta()) ; j++){
05a92d59 301 etamin = geom->GetArm1EtaMin()+
a63e0d5e 302 (j*geom->GetDeltaEta());
05a92d59 303 etamax = geom->GetArm1EtaMin()+
a63e0d5e 304 ((j+1)*geom->GetDeltaEta());
305 envelopD[4] = geom->ZFromEtaR(envelopD[5],etamin);//z begin
306 envelopD[7] = geom->ZFromEtaR(envelopD[5],etamax);// z end
307
308 // Position and Define Layer
309
310 gMC->Gsposp(radname.Data(),1+j+i*(geom->GetNEta()), label.Data(),
311 0.0, 0.0, 0.0 , idrotm, "ONLY", envelopD, 10);
fdebddeb 312 } // end for j
313 } // if not last layer
61e0abb5 314 } // for i
2012850d 315}
a1469a24 316
b13bbe81 317//______________________________________________________________________
05a92d59 318void AliEMCALv0::Init(void)
319{
b13bbe81 320 // Just prints an information message
9859bfc0 321
322 if(fDebug) {
323 TString message("\n") ;
c27ad3fb 324 message += "*****************************************\n" ;
05a92d59 325
b13bbe81 326 // Here the EMCAL initialisation code (if any!)
9859bfc0 327
05a92d59 328 AliEMCALGeometry * geom = GetGeometry() ;
9859bfc0 329
330 if (geom!=0) {
331 message += "AliEMCAL " ;
332 message += Version() ;
c27ad3fb 333 message += "EMCAL geometry initialized for " ;
9859bfc0 334 message += geom->GetName() ;
335 }
336 else {
337 message += "AliEMCAL " ;
338 message += Version() ;
339 message += "EMCAL geometry initialization failed !" ;
05a92d59 340 }
c27ad3fb 341 message += "\n*****************************************" ;
fdebddeb 342 printf(message.Data() ) ;
9859bfc0 343 }
2012850d 344}