This is the new geometry at -380cm
[u/mrichter/AliRoot.git] / PMD / AliPMDv1.cxx
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4c039060 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 **************************************************************************/
15
16/*
17$Log$
94de3818 18Revision 1.8 2000/06/09 10:31:36 hristov
19sqrt changed to TMath::Sqrt
20
b7f65909 21Revision 1.7 1999/11/03 18:01:40 fca
22Remove non orthogonal unused matrix
23
a694ef05 24Revision 1.6 1999/09/29 09:24:28 fca
25Introduction of the Copyright and cvs Log
26
4c039060 27*/
28
6edc06da 29///////////////////////////////////////////////////////////////////////////////
30// //
31// Photon Multiplicity Detector Version 1 //
32// //
33//Begin_Html
34/*
1439f98e 35<img src="picts/AliPMDv1Class.gif">
6edc06da 36*/
37//End_Html
38// //
39///////////////////////////////////////////////////////////////////////////////
d0da944c 40////
6edc06da 41#include "AliPMDv1.h"
42#include "AliRun.h"
43#include "AliMC.h"
44#include "AliConst.h"
d0da944c 45#include "AliMagF.h"
46
6edc06da 47
48static Int_t maxbox, kdet;
49static Float_t thmin,thmax,zdist,zdist1,thlow,thhigh;
50
51ClassImp(AliPMDv1)
52
53//_____________________________________________________________________________
54AliPMDv1::AliPMDv1()
55{
56 //
57 // Default constructor
58 //
59 fMedSens=0;
60}
61
62//_____________________________________________________________________________
63AliPMDv1::AliPMDv1(const char *name, const char *title)
64 : AliPMD(name,title)
65{
66 //
67 // Standard constructor
68 //
69 fMedSens=0;
70}
71//_____________________________________________________________________________
72void AliPMDv1::CreateGeometry()
73{
74 //
75 // Create geometry for Photon Multiplicity Detector Version 1
76 //
77 //Begin_Html
78 /*
1439f98e 79 <img src="picts/AliPMDv1.gif">
6edc06da 80 */
81 //End_Html
82 //Begin_Html
83 /*
1439f98e 84 <img src="picts/AliPMDv1Tree.gif">
6edc06da 85 */
86 //End_Html
87 CreatePads();
88 CreateInside();
89}
90
91//_____________________________________________________________________________
92void AliPMDv1::CreateInside()
93{
94 //
95 // Create inside of Pads
96 //
97 // -- Author : Y.P. VIYOGI, 07/05/1996.
98 // -- Modified: P.V.K.S.Baba(JU), 15-12-97.
99// Sipmd, the dimension of TUBE mother volume of PMD, other dimensions
100// like sip01.. are to place more tubes in the volume at different eta bins.
d0da944c 101
102// Float_t sipmd[3] = { 40.,270.,15.};
103// ORG Float_t sipmd[3] = { 0.,130.,15.};
104 Float_t sipmd[3] = { 0.,150.,15.};
105
106 // Float_t sip01[3] = { 10.,57.89,25.};
107 //Float_t sip02[3] = { 10.,64.03,25.};
108 //Float_t sip03[3] = { 10.,70.80,25.};
109 //Float_t sip04[3] = { 10.,78.32,25.};
110 //Float_t sip05[3] = { 10.,86.68,25.};
111 //Float_t sip06[3] = { 10.,95.91,25.};
112 //Float_t sip07[3] = { 10.,106.14,25.};
113 //Float_t sip08[3] = { 10.,117.48,25.};
114 //Float_t sip09[3] = { 10.,130.18,25.};
115 //Float_t sip10[3] = { 10.,144.18,25.};
116 //Float_t sip11[3] = { 10.,159.87,25.};
117 //Float_t sip12[3] = { 10.,177.43,25.};
118 //Float_t sip13[3] = { 10.,197.11,25.};
119 //Float_t sip14[3] = { 10.,219.28,25.};
120 //Float_t sipmdl[5] = { 10.,310.,25.,90.,270. };
121 //Float_t sipmdr[5] = { 10.,310.,25.,270.,90. };
6edc06da 122
b7f65909 123 const Float_t root3_4 = TMath::Sqrt(3.)/4.;
124 const Float_t root3_2 = TMath::Sqrt(3.)/2.;
6edc06da 125 // Float_t xiqa[4], yiqa[4];
126 Int_t i;
127 // Float_t siqad[4];
128 Float_t xp, yp, zp;
129 // Int_t idrotm[100];
130 Int_t num_mod;
131 Int_t jhrotc,jhrotac;
d0da944c 132
ad51aeb0 133 Int_t *idtmed = fIdtmed->GetArray()-599;
6edc06da 134
135 // VOLUMES Names : begining with D for all PMD volumes,
136 // The names of SIZE variables begin with S and have more meaningful
137 // characters as shown below.
138
139 // VOLUME SIZE MEDIUM : REMARKS
140 // ------ ----- ------ : ---------------------------
141
142 // DPMD SIPMD AIR : INSIDE PMD and its SIZE
143
144
145
146 // *** Define the DPMD Volume and fill with air ***
147
cfce8870 148 gMC->Gsvolu("DPMD", "TUBE", idtmed[698], sipmd, 3);
d0da944c 149 gMC->Gsatt("DPMD", "SEEN", 0);
150
151
152 // gMC->Gsvolu("PM01", "TUBE", idtmed[698], sip01, 3);
153 //gMC->Gsvolu("PM02", "TUBE", idtmed[698], sip02, 3);
154 //gMC->Gsvolu("PM03", "TUBE", idtmed[698], sip03, 3);
155 //gMC->Gsvolu("PM04", "TUBE", idtmed[698], sip04, 3);
156 //gMC->Gsvolu("PM05", "TUBE", idtmed[698], sip05, 3);
157 //gMC->Gsvolu("PM06", "TUBE", idtmed[698], sip06, 3);
158 //gMC->Gsvolu("PM07", "TUBE", idtmed[698], sip07, 3);
159 //gMC->Gsvolu("PM08", "TUBE", idtmed[698], sip08, 3);
160 //gMC->Gsvolu("PM09", "TUBE", idtmed[698], sip09, 3);
161 //gMC->Gsvolu("PM10", "TUBE", idtmed[698], sip10, 3);
162 //gMC->Gsvolu("PM11", "TUBE", idtmed[698], sip11, 3);
163 //gMC->Gsvolu("PM12", "TUBE", idtmed[698], sip12, 3);
164 //gMC->Gsvolu("PM13", "TUBE", idtmed[698], sip13, 3);
165 //gMC->Gsvolu("PM14", "TUBE", idtmed[698], sip14, 3);
166 //gMC->Gsvolu("PMDL", "TUBS", idtmed[698], sipmdl, 5);
167 //gMC->Gsvolu("PMDR", "TUBS", idtmed[698], sipmdr, 5);
6edc06da 168//
169 const Int_t npad2=72;
d0da944c 170 const Float_t boundary=0.0;
171 const Float_t offset=0.05;
172
173 // hexd1 array contains parameters of unit cell (polygon with 6 sides)
174 // new cells having 64 sq.mm. area
175 Float_t hexd1[10] = {0.,360.,6,2,-0.25,0.,0.25,0.25,0.,0.25};
176 // Float_t hexd1[10] = {0.,360.,6,2,-0.4,0.,0.40,0.4,0.,0.40};
177 // dpara_sm array contains parameters of Supermodule rhombus
6edc06da 178 Float_t dpara_sm[6] = {12.5,12.5,0.8,30.,0.,0.};
d0da944c 179 //suprmodule side is 2*7 mm bigger than the total size of 72 cells array.
180 dpara_sm[0]=(npad2+0.25)*hexd1[6] + boundary;
6edc06da 181 dpara_sm[1] = dpara_sm[0] *root3_2;
d0da944c 182 //dpara_dm11 array contains parameters of the imaginary volume DM11, this is just a
183 // little more than the side of a supermodule. total side = 2*39 cm.
6edc06da 184 Float_t dpara_dm11[6] = {12.5,12.5,0.8,30.,0.,0.};
d0da944c 185 dpara_dm11[0]=dpara_sm[0] + offset;
6edc06da 186 dpara_dm11[1] = dpara_dm11[0] *root3_2;
187 dpara_dm11[2]= 6.2/2.;
188//
d0da944c 189 Float_t dpara_hole[6] = {12.5,12.5,0.8,30.,0.,0.};
190 dpara_hole[0]=dpara_dm11[0]/3.;
191 dpara_hole[1] = dpara_hole[0] *root3_2;
192 dpara_hole[2]= 6.2/2.;
193 gMC->Gsvolu("HOLE", "PARA", idtmed[698], dpara_hole, 6);
194 gMC->Gsatt("HOLE", "SEEN", 1);
195
196//
197
198 AliMatrix(jhrotc, 90., 30., 90., 120., 0., 0.);
199 AliMatrix(jhrotac, 90., 330., 90., 240., 0., 0.);
200
201 // delx = full side of the supermodule 78 cm.
202 Float_t delx=2*dpara_dm11[0];
203 Float_t x1= delx*root3_4;
204 Float_t x2= delx*root3_4 + delx*root3_2;
205 Float_t x3= delx*root3_4 + 2*delx*root3_2;
206 // xpos are the x-coordinates of the centres of 13 supermodules on the left half of the
207 // PMD. Numbering of the boxes are :
208 // starting from the bottom part of the first column
209 // 1,2,3,4,5,6 (going downwards), then second column from bottom, 7,8,9,10,11
210 // then third
211 // cloumn from top 12,13,14,15.
212
213 Float_t xpos[15]={-x1,-x1,-x1,-x1,-x1,-x1,-x2,-x2,-x2,-x2,-x2,-x3,-x3,-x3,-x3};
214
215 Float_t x4=delx/4.;
216
217 // ypos are the y-coordinates of the 13 supermodules (identical for both halves).
218
219 // Float_t ypos[15]={(x4+2*delx),(x4+delx),x4,(x4-delx),x4-2*delx,
220 //x4-3*delx,-x4,-x4-delx,-x4-2*delx,-3*x4-delx,-x4-delx/2.,-3*x4+delx,-3*x4+2 //*delx};
221
222 Float_t ypos[15];
223 ypos[2]=x4;
224 ypos[1]=ypos[2]+delx;
225 ypos[0]=ypos[1]+delx;
226
227 ypos[3]=ypos[2]-delx;
228 ypos[4]=ypos[3]-delx;
229 ypos[5]=ypos[4]-delx;
230
231 ypos[6]=ypos[5]+delx/2;
232 ypos[7]=ypos[6]+delx;
233 ypos[8]=ypos[7]+delx;
234 ypos[9]=ypos[8]+delx;
235 ypos[10]=ypos[9]+delx;
236
237 ypos[11]=ypos[1];
238 ypos[12]=ypos[2];
239 ypos[13]=ypos[3];
240 ypos[14]=ypos[4];
241
242
243 // for (i = 0; i < 2; ++i) {
244 // num_mod=i+1;
245 //gMC->Gsposp("DM11", num_mod, "DPMD", xpos[i],ypos[i],0., jhrotac, "ONLY", dpara_dm11, 6);
246 // gMC->Gsposp("DM11", num_mod+13, "DPMD", TMath::Abs(xpos[i]),ypos[i],0., jhrotc, "ONLY", dpara_dm11, 6);
247 //printf("Num_mod %d\n",num_mod);
248 // }
249
250 maxbox=15;
251 for (i = 0; i < maxbox; ++i) {
6edc06da 252 num_mod=i+1;
cfce8870 253 gMC->Gsposp("DM11", num_mod, "DPMD", xpos[i],ypos[i],0., jhrotc, "ONLY", dpara_dm11, 6);
d0da944c 254 gMC->Gsposp("DM11", num_mod+15, "DPMD", TMath::Abs(xpos[i]),ypos[i],0., jhrotac, "ONLY", dpara_dm11, 6);
6edc06da 255 printf("Num_mod %d\n",num_mod);
256 }
d0da944c 257
258 // place four unit modules to create a hole of air.
259 Float_t xhole = dpara_hole[0]*root3_2;
260 Float_t yhole = dpara_hole[0]/2;
261 gMC->Gsposp("HOLE", 1, "DPMD", -xhole, yhole, 0., jhrotc, "ONLY", dpara_hole, 6);
262 gMC->Gsposp("HOLE", 3, "DPMD", xhole, yhole ,0., jhrotac, "ONLY", dpara_hole, 6);
263 yhole=yhole-dpara_hole[0]*2;
264
265 gMC->Gsposp("HOLE", 2, "DPMD", -xhole, yhole, 0., jhrotc, "ONLY", dpara_hole, 6);
266 gMC->Gsposp("HOLE", 4, "DPMD", xhole, yhole ,0., jhrotac, "ONLY", dpara_hole, 6);
267
268
cfce8870 269// gMC->Gspos("PM01", 1, "DPMD", 0.,0.,0., 0, "ONLY");
270// gMC->Gspos("PM02", 1, "DPMD", 0.,0.,0., 0, "ONLY");
271// gMC->Gspos("PM03", 1, "DPMD", 0.,0.,0., 0, "ONLY");
272// gMC->Gspos("PM04", 1, "DPMD", 0.,0.,0., 0, "ONLY");
273// gMC->Gspos("PM05", 1, "DPMD", 0.,0.,0., 0, "ONLY");
274// gMC->Gspos("PM06", 1, "DPMD", 0.,0.,0., 0, "ONLY");
275// gMC->Gspos("PM07", 1, "DPMD", 0.,0.,0., 0, "ONLY");
276// gMC->Gspos("PM08", 1, "DPMD", 0.,0.,0., 0, "ONLY");
277// gMC->Gspos("PM09", 1, "DPMD", 0.,0.,0., 0, "ONLY");
278// gMC->Gspos("PM10", 1, "DPMD", 0.,0.,0., 0, "ONLY");
279// gMC->Gspos("PM11", 1, "DPMD", 0.,0.,0., 0, "ONLY");
280// gMC->Gspos("PM12", 1, "DPMD", 0.,0.,0., 0, "ONLY");
281// gMC->Gspos("PM13", 1, "DPMD", 0.,0.,0., 0, "ONLY");
282// gMC->Gspos("PM14", 1, "DPMD", 0.,0.,0., 0, "ONLY");
6edc06da 283// --- Place the DPMD in ALICE with front edge 5.8m from vertex ---
284 xp = 0.;
285 yp = 0.;
286 zp = zdist1;
cfce8870 287// gMC->Gspos("PMDL", 1, "DPMD", xp,yp,0., 0, "ONLY");
288// gMC->Gspos("PMDR", 1, "DPMD", xp,yp,0., 0, "ONLY");
289 gMC->Gspos("DPMD", 1, "ALIC", xp,yp,zp, 0, "ONLY");
6edc06da 290
291}
292
293//_____________________________________________________________________________
294void AliPMDv1::CreatePads()
295{
296 //
297 // Create the geometry of the pads
298 // *** DEFINITION OF THE GEOMETRY OF THE PMD ***
299 // *** HEXAGONAL PADS WITH 10 MM SQUARE EQUIVALENT
300 // -- Author : S. Chattopadhyay, 02/04/1999.
301
302// Basic unit is DP11, a hexagonal cell, which is placed inside another
303// hexagonal cell (DS11) of larger radius, compared to DP11. The difference in r// adius gives the dimension of half width of each cell wall.
304// These cells are placed as 72 x 72 array in a
305// rhombus shaped supermodule (DW11). The rhombus shaped modules are designed
306// to have closed packed structure.
307// Each supermodule (SUPR), made of G10 is filled with following components
308// SMSS --> SS backing,
309// SMAR --> Gap between gas hexagonal cells and G10 backing.
310// DW11 --> Ar-Co2 filled gas hexagonal cells.
311// SMAR
312// These supermodules are placed inside the main module (DM11), with Fe and
313// Pb converter positioned between CPV and PMD.
314// DM11 made of
315// SUPR (rotated to place steel on the other side), this works as preshower
316// when PMD is placed in -ve z.
317// SUPB --> Pb converter
318// SUFE --> Fe backing
319// SUPR --> supermodule without rotation (this acts as CPV).
320//
321
6edc06da 322 const Int_t npad2 = 72;
d0da944c 323 Float_t hexd1[10] = {0.,360.,6,2,-0.25,0.,0.25,0.25,0.,0.25};
6edc06da 324//total wall thickness=0.2*2
d0da944c 325 Float_t hexd2[10] = {0.,360.,6,2,-0.25,0.,0.23,0.25,0.,0.23};
6edc06da 326 Int_t i, j;
327 Float_t xb, yb, zb;//, sw[3];
328 Int_t number;
329 Int_t ihrotm,irotdm;
b7f65909 330 const Float_t root3_cons = TMath::Sqrt(3.) /2.;
ad51aeb0 331 Int_t *idtmed = fIdtmed->GetArray()-599;
6edc06da 332
333 AliMatrix(ihrotm, 90., 30., 90., 120., 0., 0.);
334 AliMatrix(irotdm, 90., 180., 90., 270., 180., 0.);
335 zdist1 = fIn[2];
336 zdist = TMath::Abs(zdist1);
337//
338 Int_t xrow=1;
339 Float_t dpara[6] = {12.5,12.5,0.4,30.,0.,0.};
340 dpara[0]=(npad2+0.25)*hexd1[6];
341 dpara[1] = dpara[0] *root3_cons;
342//
343//Subhasis, dimensional parameters of rhombus (dpara) as given to gsvolu
344// rhombus to accomodate 72 x 72 hexagons, and with total 1.2cm extension
345//(1mm tolerance on both side and 5mm thick G10 wall)
346//
347
348// **** PAD SIZE 10 MM SQUARE EQUIVALENT
349//
350// Inner hex filled with gas
cfce8870 351 gMC->Gsvolu("DP11", "PGON", idtmed[604], hexd2,10);
d0da944c 352 gMC->Gsatt("DP11", "SEEN", 0);
6edc06da 353
354// Outer hex filled with Plastic
cfce8870 355//plastic gMC->Gsvolu("DS11", "PGON", idtmed[616], hexd1,10);
6edc06da 356// Iron
d0da944c 357 gMC->Gsvolu("DS11", "PGON", idtmed[614], hexd1,10);
358 gMC->Gsatt("DS11", "SEEN", 0);
6edc06da 359// --- place inner hex inside outer hex
cfce8870 360 gMC->Gsposp("DP11", 1, "DS11", 0., 0., 0., 0, "ONLY", hexd2, 10);
6edc06da 361// Rhombus shaped supermodules (defined by PARA)
362// volume for SUPERMODULE
d0da944c 363 const Float_t boundary=0.0;
364 const Float_t offset=0.05;
365
6edc06da 366 Float_t dpara_sm[6] = {12.5,12.5,0.8,30.,0.,0.};
d0da944c 367 dpara_sm[0]=(npad2+0.25)*hexd1[6] + boundary;
6edc06da 368 dpara_sm[1] = dpara_sm[0] *root3_cons;
369//
cfce8870 370 gMC->Gsvolu("SUPR","PARA", idtmed[607], dpara_sm, 6);
d0da944c 371 gMC->Gsatt("SUPR", "SEEN", 0);
6edc06da 372// SS
373 Float_t dpara_ss[6] = {12.5,12.5,8.,30.,0.,0.};
374 dpara_ss[0]= dpara[0];
375 dpara_ss[1]= dpara[1];
d0da944c 376 dpara_ss[2]= 0.15/2.;
6edc06da 377//
cfce8870 378 gMC->Gsvolu("SMSS","PARA", idtmed[601], dpara_ss, 6);
d0da944c 379 gMC->Gsatt("SMSS", "SEEN", 0);
6edc06da 380// Air
381 Float_t dpara_air[6] = {12.5,12.5,8.,30.,0.,0.};
382 dpara_air[0]= dpara[0] - 0.5;
383 dpara_air[1]= dpara_air[0] * root3_cons;
384 dpara_air[2]= 0.1/2.;
cfce8870 385// gMC->Gsvolu("SMAR","PARA", idtmed[604], dpara_air, 6);
386 gMC->Gsvolu("SMAR","PARA", idtmed[698], dpara_air, 6);
d0da944c 387 gMC->Gsatt("SMAR", "SEEN", 0);
6edc06da 388//
389// volume for gas chamber (DW11)
390//
cfce8870 391// gMC->Gsvolu("DW11","PARA", idtmed[604], dpara, 6);
392 gMC->Gsvolu("DW11","PARA", idtmed[698], dpara, 6);
d0da944c 393 gMC->Gsatt("DW11", "SEEN", 0);
6edc06da 394// Place outer hex inside DW11
395 yb = -dpara[1] + (1./root3_cons)*hexd1[6];
396 zb = 0.;
397 for (j = 1; j <= npad2; ++j) {
398 xb =-(dpara[0] + dpara[1]*0.577) + 2*hexd1[6];
399 if(xrow >= 2){
400 xb = xb+(xrow-1)*hexd1[6];
401 }
402 for (i = 1; i <= npad2; ++i) {
403 number = i+(j-1)*npad2;
cfce8870 404 gMC->Gsposp("DS11", number, "DW11", xb, yb, zb, ihrotm, "ONLY", hexd1, 10);
6edc06da 405 xb += (hexd1[6]*2.);
406 }
407 xrow = xrow+1;
b7f65909 408 yb += (hexd1[6]*TMath::Sqrt(3.));
6edc06da 409 }
410 Float_t z_ss,z_air1,z_air2,z_gas;
411// Place other components inside super module
412 z_ss=-dpara_sm[2]+dpara_ss[2];
cfce8870 413 gMC->Gspos("SMSS", 1, "SUPR", 0., 0., z_ss, 0, "ONLY");
6edc06da 414 z_air1=z_ss+dpara_ss[2] +dpara_air[2];
cfce8870 415 gMC->Gspos("SMAR", 1, "SUPR", 0., 0., z_air1, 0, "ONLY");
d0da944c 416 z_gas=z_air1+dpara_air[2]+dpara[2]+0.05;
cfce8870 417 gMC->Gspos("DW11", 1, "SUPR", 0., 0., z_gas, 0, "ONLY");
d0da944c 418 z_air2=z_gas+dpara[2]+0.05+dpara_air[2];
cfce8870 419 gMC->Gspos("SMAR", 2, "SUPR", 0., 0., z_air2, 0, "ONLY");
6edc06da 420
421// --- DEFINE MODules, iron, and lead voLUMES
422
423
424// volume for SUPERMODULE
425// Pb
426 Float_t dpara_pb[6] = {12.5,12.5,8.,30.,0.,0.};
427 dpara_pb[0]=dpara_sm[0];
428 dpara_pb[1]=dpara_sm[1];
6edc06da 429 dpara_pb[2]=1.5/2.;
d0da944c 430// dpara_pb[2]=1.0/2.;
cfce8870 431 gMC->Gsvolu("SUPB","PARA", idtmed[600], dpara_pb, 6);
d0da944c 432 //--- gMC->Gsvolu("SUPB","PARA", idtmed[698], dpara_pb, 6);
433 gMC->Gsatt("SUPB", "SEEN", 0);
434// tungsten
435 Float_t dpara_tg[6] = {12.5,12.5,8.,30.,0.,0.};
436 dpara_tg[0]=dpara_sm[0];
437 dpara_tg[1]=dpara_sm[1];
438 dpara_tg[2]=1.0/2.;
439 gMC->Gsvolu("SUTG","PARA", idtmed[606], dpara_tg, 6);
440 gMC->Gsatt("SUTG", "SEEN", 0);
6edc06da 441// Fe
442 Float_t dpara_fe[6] = {12.5,12.5,8.,30.,0.,0.};
443 dpara_fe[0]=dpara_sm[0];
444 dpara_fe[1]=dpara_sm[1];
445 dpara_fe[2]=0.5/2.;
cfce8870 446 gMC->Gsvolu("SUFE","PARA", idtmed[601], dpara_fe, 6);
d0da944c 447 gMC->Gsatt("SUFE", "SEEN", 0);
6edc06da 448// volume for DM11
449 Float_t dpara_dm11[6] = {12.5,12.5,0.8,30.,0.,0.};
d0da944c 450 dpara_dm11[0]=dpara_sm[0]+offset;
6edc06da 451 dpara_dm11[1] = dpara_dm11[0] *root3_cons;
452 dpara_dm11[2]= 6.2/2.;
453
454//
cfce8870 455 gMC->Gsvolu("DM11","PARA", idtmed[698], dpara_dm11, 6);
456 gMC->Gsatt("DM11", "SEEN", 1);
6edc06da 457// position super module inside DM11
458 Float_t z_ps,z_pb,z_fe,z_cv;
459 z_ps=-dpara_dm11[2]+dpara_sm[2];
d0da944c 460 gMC->Gspos("SUPR", 2, "DM11", 0., 0., z_ps, irotdm, "ONLY");
6edc06da 461 z_pb=z_ps+dpara_sm[2]+dpara_pb[2];
cfce8870 462 gMC->Gspos("SUPB", 1, "DM11", 0., 0., z_pb, 0, "ONLY");
6edc06da 463 z_fe=z_pb+dpara_pb[2]+dpara_fe[2];
cfce8870 464 gMC->Gspos("SUFE", 1, "DM11", 0., 0., z_fe, 0, "ONLY");
6edc06da 465 z_cv=z_fe+dpara_fe[2]+dpara_sm[2];
d0da944c 466 gMC->Gspos("SUPR", 1, "DM11", 0., 0., z_cv, 0, "ONLY");
6edc06da 467//
468}
469
470//_____________________________________________________________________________
471void AliPMDv1::DrawModule()
472{
473 //
474 // Draw a shaded view of the Photon Multiplicity Detector
475 //
476
cfce8870 477 gMC->Gsatt("*", "seen", -1);
478 gMC->Gsatt("alic", "seen", 0);
6edc06da 479 //
480 // Set the visibility of the components
481 //
cfce8870 482 gMC->Gsatt("DP11","seen",0);
d0da944c 483 gMC->Gsatt("DS11","seen",0);
cfce8870 484 gMC->Gsatt("DW11","seen",0);
485 gMC->Gsatt("DM11","seen",1);
d0da944c 486 gMC->Gsatt("HOLE","seen",1);
cfce8870 487 gMC->Gsatt("DPMD","seen",0);
6edc06da 488 //
cfce8870 489 gMC->Gdopt("hide", "on");
490 gMC->Gdopt("shad", "on");
491 gMC->Gsatt("*", "fill", 7);
492 gMC->SetClipBox(".");
493 gMC->SetClipBox("*", 0, 3000, -3000, 3000, -6000, 6000);
494 gMC->DefaultRange();
495 gMC->Gdraw("alic", 40, 30, 0, 22, 20.5, .02, .02);
496 gMC->Gdhead(1111, "Photon Multiplicity Detector Version 1");
497 //gMC->Gdman(17, 5, "MAN");
498 gMC->Gdopt("hide", "off");
6edc06da 499}
500
501//_____________________________________________________________________________
502void AliPMDv1::CreateMaterials()
503{
504 //
505 // Create materials for the PMD version 1
506 //
507 // ORIGIN : Y. P. VIYOGI
508 //
509
6edc06da 510 // --- The Argon- CO2 mixture ---
511 Float_t ag[2] = { 39.95 };
512 Float_t zg[2] = { 18. };
513 Float_t wg[2] = { .8,.2 };
514 Float_t dar = .001782; // --- Ar density in g/cm3 ---
515 // --- CO2 ---
516 Float_t ac[2] = { 12.,16. };
517 Float_t zc[2] = { 6.,8. };
518 Float_t wc[2] = { 1.,2. };
519 Float_t dc = .001977;
520 Float_t dco = .002; // --- CO2 density in g/cm3 ---
521
522 Float_t absl, radl, a, d, z;
523 Float_t dg;
524 Float_t x0ar;
d0da944c 525 Float_t x0xe=2.4;
526 Float_t dxe=0.005858;
6edc06da 527 Float_t buf[1];
528 Int_t nbuf;
529 Float_t asteel[4] = { 55.847,51.9961,58.6934,28.0855 };
530 Float_t zsteel[4] = { 26.,24.,28.,14. };
531 Float_t wsteel[4] = { .715,.18,.1,.005 };
532
ad51aeb0 533 Int_t *idtmed = fIdtmed->GetArray()-599;
6edc06da 534 Int_t isxfld = gAlice->Field()->Integ();
535 Float_t sxmgmx = gAlice->Field()->Max();
536
537 // --- Define the various materials for GEANT ---
538 AliMaterial(1, "Pb $", 207.19, 82., 11.35, .56, 18.5);
539 x0ar = 19.55 / dar;
540 AliMaterial(2, "Argon$", 39.95, 18., dar, x0ar, 6.5e4);
541 AliMixture(3, "CO2 $", ac, zc, dc, -2, wc);
542 AliMaterial(4, "Al $", 26.98, 13., 2.7, 8.9, 18.5);
543 AliMaterial(6, "Fe $", 55.85, 26., 7.87, 1.76, 18.5);
544 AliMaterial(7, "W $", 183.85, 74., 19.3, .35, 10.3);
545 AliMaterial(8, "G10 $", 20., 10., 1.7, 19.4, 999.);
546 AliMaterial(9, "SILIC$", 28.09, 14., 2.33, 9.36, 45.);
547 AliMaterial(10, "Be $", 9.01, 4., 1.848, 35.3, 36.7);
548 AliMaterial(15, "Cu $", 63.54, 29., 8.96, 1.43, 15.);
549 AliMaterial(16, "C $", 12.01, 6., 2.265, 18.8, 49.9);
550 AliMaterial(17, "POLYCARBONATE $", 20., 10., 1.2, 34.6, 999.);
d0da944c 551 // AliMaterial(31, "Xenon$", 131.3, 54., dxe, x0xe, 6.5e4);
6edc06da 552
553 AliMaterial(96, "MYLAR$", 8.73, 4.55, 1.39, 28.7, 62.);
554 AliMaterial(97, "CONCR$", 20., 10., 2.5, 10.7, 40.);
555 AliMaterial(98, "Vacum$", 1e-9, 1e-9, 1e-9, 1e16, 1e16);
556 AliMaterial(99, "Air $", 14.61, 7.3, .0012, 30420., 67500.);
557 AliMixture(19, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel);
558 // define gas-mixtures
559
560 char namate[21];
cfce8870 561 gMC->Gfmate((*fIdmate)[3], namate, a, z, d, radl, absl, buf, nbuf);
6edc06da 562 ag[1] = a;
563 zg[1] = z;
564 dg = (dar * 4 + dco) / 5;
565 AliMixture(5, "ArCO2$", ag, zg, dg, 2, wg);
566
567 // Define tracking media
ad51aeb0 568 AliMedium(1, "Pb conv.$", 1, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1);
569 AliMedium(2, " S steel$", 19, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1);
570 AliMedium(7, "W conv.$", 7, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1);
571 AliMedium(8, "G10plate$", 8, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1);
572 AliMedium(4, "Al $", 4, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1);
573 AliMedium(6, "Fe $", 6, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1);
574 AliMedium(5, "ArCO2 $", 5, 1, 0, isxfld, sxmgmx, .1, .1, .1, .1);
575 AliMedium(9, "SILICON $", 9, 1, 0, isxfld, sxmgmx, .1, .1, .1, .1);
576 AliMedium(10, "Be $", 10, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1);
577 AliMedium(98, "Vacuum $", 98, 0, 0, isxfld, sxmgmx, 1., .1, .1, 10);
578 AliMedium(99, "Air gaps$", 99, 0, 0, isxfld, sxmgmx, 1., .1, .1, .1);
579 AliMedium(15, "Cu $", 15, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1);
580 AliMedium(16, "C $", 16, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1);
581 AliMedium(17, "PLOYCARB$", 17, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1);
d0da944c 582 // AliMedium(31, "Xenon $", 31, 1, 0, isxfld, sxmgmx, .1, .1, .1, .1);
6edc06da 583
584 // --- Generate explicitly delta rays in the iron, aluminium and lead ---
cfce8870 585 gMC->Gstpar(idtmed[600], "LOSS", 3.);
586 gMC->Gstpar(idtmed[600], "DRAY", 1.);
6edc06da 587
cfce8870 588 gMC->Gstpar(idtmed[603], "LOSS", 3.);
589 gMC->Gstpar(idtmed[603], "DRAY", 1.);
6edc06da 590
cfce8870 591 gMC->Gstpar(idtmed[604], "LOSS", 3.);
592 gMC->Gstpar(idtmed[604], "DRAY", 1.);
6edc06da 593
cfce8870 594 gMC->Gstpar(idtmed[605], "LOSS", 3.);
595 gMC->Gstpar(idtmed[605], "DRAY", 1.);
6edc06da 596
cfce8870 597 gMC->Gstpar(idtmed[606], "LOSS", 3.);
598 gMC->Gstpar(idtmed[606], "DRAY", 1.);
6edc06da 599
cfce8870 600 gMC->Gstpar(idtmed[607], "LOSS", 3.);
601 gMC->Gstpar(idtmed[607], "DRAY", 1.);
6edc06da 602
603 // --- Energy cut-offs in the Pb and Al to gain time in tracking ---
604 // --- without affecting the hit patterns ---
cfce8870 605 gMC->Gstpar(idtmed[600], "CUTGAM", 1e-4);
606 gMC->Gstpar(idtmed[600], "CUTELE", 1e-4);
607 gMC->Gstpar(idtmed[600], "CUTNEU", 1e-4);
608 gMC->Gstpar(idtmed[600], "CUTHAD", 1e-4);
609 gMC->Gstpar(idtmed[605], "CUTGAM", 1e-4);
610 gMC->Gstpar(idtmed[605], "CUTELE", 1e-4);
611 gMC->Gstpar(idtmed[605], "CUTNEU", 1e-4);
612 gMC->Gstpar(idtmed[605], "CUTHAD", 1e-4);
613 gMC->Gstpar(idtmed[606], "CUTGAM", 1e-4);
614 gMC->Gstpar(idtmed[606], "CUTELE", 1e-4);
615 gMC->Gstpar(idtmed[606], "CUTNEU", 1e-4);
616 gMC->Gstpar(idtmed[606], "CUTHAD", 1e-4);
617 gMC->Gstpar(idtmed[603], "CUTGAM", 1e-4);
618 gMC->Gstpar(idtmed[603], "CUTELE", 1e-4);
619 gMC->Gstpar(idtmed[603], "CUTNEU", 1e-4);
620 gMC->Gstpar(idtmed[603], "CUTHAD", 1e-4);
621 gMC->Gstpar(idtmed[609], "CUTGAM", 1e-4);
622 gMC->Gstpar(idtmed[609], "CUTELE", 1e-4);
623 gMC->Gstpar(idtmed[609], "CUTNEU", 1e-4);
624 gMC->Gstpar(idtmed[609], "CUTHAD", 1e-4);
6edc06da 625
626 // --- Prevent particles stopping in the gas due to energy cut-off ---
cfce8870 627 gMC->Gstpar(idtmed[604], "CUTGAM", 1e-5);
628 gMC->Gstpar(idtmed[604], "CUTELE", 1e-5);
629 gMC->Gstpar(idtmed[604], "CUTNEU", 1e-5);
630 gMC->Gstpar(idtmed[604], "CUTHAD", 1e-5);
631 gMC->Gstpar(idtmed[604], "CUTMUO", 1e-5);
6edc06da 632}
633
634//_____________________________________________________________________________
635void AliPMDv1::Init()
636{
637 //
638 // Initialises PMD detector after it has been built
639 //
640 Int_t i;
641 kdet=1;
642 //
643 printf("\n");
644 for(i=0;i<35;i++) printf("*");
645 printf(" PMD_INIT ");
646 for(i=0;i<35;i++) printf("*");
647 printf("\n");
648 printf(" PMD simulation package (v1) initialised\n");
649 printf(" parameters of pmd\n");
650 printf("%6d %10.2f %10.2f %10.2f %10.2f %10.2f\n",kdet,thmin,thmax,zdist,thlow,thhigh);
651 //
652 for(i=0;i<80;i++) printf("*");
653 printf("\n");
654 //
ad51aeb0 655 Int_t *idtmed = fIdtmed->GetArray()-599;
6edc06da 656 fMedSens=idtmed[605-1];
657}
658
659//_____________________________________________________________________________
660void AliPMDv1::StepManager()
661{
662 //
663 // Called at each step in the PMD
664 //
665 Int_t copy;
666 Float_t hits[4], destep;
667 Float_t center[3] = {0,0,0};
668 Int_t vol[5];
0a6d8768 669 // char *namep;
6edc06da 670
cfce8870 671 if(gMC->GetMedium() == fMedSens && (destep = gMC->Edep())) {
6edc06da 672
0a6d8768 673 gMC->CurrentVolID(copy);
674// namep=gMC->CurrentVolName();
675// printf("Current vol is %s \n",namep);
6edc06da 676 vol[0]=copy;
0a6d8768 677 gMC->CurrentVolOffID(1,copy);
678// namep=gMC->CurrentVolOffName(1);
679// printf("Current vol 11 is %s \n",namep);
6edc06da 680 vol[1]=copy;
0a6d8768 681 gMC->CurrentVolOffID(2,copy);
682// namep=gMC->CurrentVolOffName(2);
683// printf("Current vol 22 is %s \n",namep);
6edc06da 684 vol[2]=copy;
685// if(strncmp(namep,"DW11",4))vol[2]=1;
0a6d8768 686 gMC->CurrentVolOffID(3,copy);
687// namep=gMC->CurrentVolOffName(3);
688// printf("Current vol 33 is %s \n",namep);
6edc06da 689 vol[3]=copy;
0a6d8768 690 gMC->CurrentVolOffID(4,copy);
691// namep=gMC->CurrentVolOffName(4);
692// printf("Current vol 44 is %s \n",namep);
6edc06da 693 vol[4]=copy;
694// printf("volume number %d,%d,%d,%d,%d \n",vol[0],vol[1],vol[2],vol[3],vol[4]);
cfce8870 695 gMC->Gdtom(center,hits,1);
6edc06da 696 hits[3] = destep*1e9; //Number in eV
697 AddHit(gAlice->CurrentTrack(), vol, hits);
698 }
699}
700
701