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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$Log$
a694ef05 18Revision 1.6 1999/09/29 09:24:28 fca
19Introduction of the Copyright and cvs Log
20
4c039060 21*/
22
6edc06da 23///////////////////////////////////////////////////////////////////////////////
24// //
25// Photon Multiplicity Detector Version 1 //
26// //
27//Begin_Html
28/*
1439f98e 29<img src="picts/AliPMDv1Class.gif">
6edc06da 30*/
31//End_Html
32// //
33///////////////////////////////////////////////////////////////////////////////
34
35#include "AliPMDv1.h"
36#include "AliRun.h"
37#include "AliMC.h"
38#include "AliConst.h"
39
40static Int_t maxbox, kdet;
41static Float_t thmin,thmax,zdist,zdist1,thlow,thhigh;
42
43ClassImp(AliPMDv1)
44
45//_____________________________________________________________________________
46AliPMDv1::AliPMDv1()
47{
48 //
49 // Default constructor
50 //
51 fMedSens=0;
52}
53
54//_____________________________________________________________________________
55AliPMDv1::AliPMDv1(const char *name, const char *title)
56 : AliPMD(name,title)
57{
58 //
59 // Standard constructor
60 //
61 fMedSens=0;
62}
63//_____________________________________________________________________________
64void AliPMDv1::CreateGeometry()
65{
66 //
67 // Create geometry for Photon Multiplicity Detector Version 1
68 //
69 //Begin_Html
70 /*
1439f98e 71 <img src="picts/AliPMDv1.gif">
6edc06da 72 */
73 //End_Html
74 //Begin_Html
75 /*
1439f98e 76 <img src="picts/AliPMDv1Tree.gif">
6edc06da 77 */
78 //End_Html
79 CreatePads();
80 CreateInside();
81}
82
83//_____________________________________________________________________________
84void AliPMDv1::CreateInside()
85{
86 //
87 // Create inside of Pads
88 //
89 // -- Author : Y.P. VIYOGI, 07/05/1996.
90 // -- Modified: P.V.K.S.Baba(JU), 15-12-97.
91// Sipmd, the dimension of TUBE mother volume of PMD, other dimensions
92// like sip01.. are to place more tubes in the volume at different eta bins.
93 Float_t sipmd[3] = { 40.,270.,15.};
94 Float_t sip01[3] = { 10.,57.89,25.};
95 Float_t sip02[3] = { 10.,64.03,25.};
96 Float_t sip03[3] = { 10.,70.80,25.};
97 Float_t sip04[3] = { 10.,78.32,25.};
98 Float_t sip05[3] = { 10.,86.68,25.};
99 Float_t sip06[3] = { 10.,95.91,25.};
100 Float_t sip07[3] = { 10.,106.14,25.};
101 Float_t sip08[3] = { 10.,117.48,25.};
102 Float_t sip09[3] = { 10.,130.18,25.};
103 Float_t sip10[3] = { 10.,144.18,25.};
104 Float_t sip11[3] = { 10.,159.87,25.};
105 Float_t sip12[3] = { 10.,177.43,25.};
106 Float_t sip13[3] = { 10.,197.11,25.};
107 Float_t sip14[3] = { 10.,219.28,25.};
108 Float_t sipmdl[5] = { 10.,310.,25.,90.,270. };
109 Float_t sipmdr[5] = { 10.,310.,25.,270.,90. };
110
111 const Float_t root3_4 = sqrt(3)/4.;
112 const Float_t root3_2 = sqrt(3)/2.;
113 // Float_t xiqa[4], yiqa[4];
114 Int_t i;
115 // Float_t siqad[4];
116 Float_t xp, yp, zp;
117 // Int_t idrotm[100];
118 Int_t num_mod;
119 Int_t jhrotc,jhrotac;
6edc06da 120// const Float_t delx=78.8;
121 const Float_t delx=76.75;
122 // const Float_t dely=delx*root3_2;
123// const Float_t delz=1.6/2.;
124 AliMatrix(jhrotc, 90., 30., 90., 120., 0., 0.);
125 AliMatrix(jhrotac, 90., 330., 90., 240., 0., 0.);
6edc06da 126 Float_t x1= delx*root3_4;
127 Float_t x2= delx*root3_4 + delx*root3_2;
128 Float_t x3= delx*root3_4 + 2*delx*root3_2;
129 Float_t xpos[13]={-x1,-x1,-x1,-x1,-x2,-x2,-x2,-x2,-x2,-x3,-x3,-x3,-x3};
130 Float_t x4=delx/4.;
131 Float_t ypos[13]={(-70.-x4-delx),-(70.+x4),(70.+x4),(70.+x4+delx),-x4+2*delx,-x4+delx,-x4,-x4-delx,-x4-2*delx,-3*x4-delx,-x4-delx/2.,-3*x4+delx,-3*x4+2*delx};
132// Float_t ypos[13]={(-70.-x4-delx),-(70.+x4),(70.+x4),(70.+x4+delx),(4*dely),(2*dely),0.,-(2*dely),-(4*dely),-3*x4-delx,-x4-delx/2.,-3*x4+delx,-3*x4+2*delx};
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);
149 gMC->Gsvolu("PM01", "TUBE", idtmed[698], sip01, 3);
150 gMC->Gsvolu("PM02", "TUBE", idtmed[698], sip02, 3);
151 gMC->Gsvolu("PM03", "TUBE", idtmed[698], sip03, 3);
152 gMC->Gsvolu("PM04", "TUBE", idtmed[698], sip04, 3);
153 gMC->Gsvolu("PM05", "TUBE", idtmed[698], sip05, 3);
154 gMC->Gsvolu("PM06", "TUBE", idtmed[698], sip06, 3);
155 gMC->Gsvolu("PM07", "TUBE", idtmed[698], sip07, 3);
156 gMC->Gsvolu("PM08", "TUBE", idtmed[698], sip08, 3);
157 gMC->Gsvolu("PM09", "TUBE", idtmed[698], sip09, 3);
158 gMC->Gsvolu("PM10", "TUBE", idtmed[698], sip10, 3);
159 gMC->Gsvolu("PM11", "TUBE", idtmed[698], sip11, 3);
160 gMC->Gsvolu("PM12", "TUBE", idtmed[698], sip12, 3);
161 gMC->Gsvolu("PM13", "TUBE", idtmed[698], sip13, 3);
162 gMC->Gsvolu("PM14", "TUBE", idtmed[698], sip14, 3);
163 gMC->Gsvolu("PMDL", "TUBS", idtmed[698], sipmdl, 5);
164 gMC->Gsvolu("PMDR", "TUBS", idtmed[698], sipmdr, 5);
6edc06da 165//
166 const Int_t npad2=72;
167 Float_t hexd1[10] = {0.,360.,6,2,-0.4,0.,0.53,0.4,0.,0.53};
168 Float_t dpara_sm[6] = {12.5,12.5,0.8,30.,0.,0.};
169 dpara_sm[0]=(npad2+0.25)*hexd1[6] + 1.2;
170 dpara_sm[1] = dpara_sm[0] *root3_2;
171 Float_t dpara_dm11[6] = {12.5,12.5,0.8,30.,0.,0.};
172 dpara_dm11[0]=dpara_sm[0]+.01;
173 dpara_dm11[1] = dpara_dm11[0] *root3_2;
174 dpara_dm11[2]= 6.2/2.;
175//
176 for (i = 0; i < 2; ++i) {
177 num_mod=i+1;
cfce8870 178 gMC->Gsposp("DM11", num_mod, "DPMD", xpos[i],ypos[i],0., jhrotac, "ONLY", dpara_dm11, 6);
179 gMC->Gsposp("DM11", num_mod+13, "DPMD", TMath::Abs(xpos[i]),ypos[i],0., jhrotc, "ONLY", dpara_dm11, 6);
6edc06da 180 printf("Num_mod %d\n",num_mod);
181 }
182 maxbox=13;
183 for (i = 2; i < maxbox; ++i) {
184 num_mod=i+1;
cfce8870 185 gMC->Gsposp("DM11", num_mod, "DPMD", xpos[i],ypos[i],0., jhrotc, "ONLY", dpara_dm11, 6);
186 gMC->Gsposp("DM11", num_mod+13, "DPMD", TMath::Abs(xpos[i]),ypos[i],0., jhrotac, "ONLY", dpara_dm11, 6);
6edc06da 187 printf("Num_mod %d\n",num_mod);
188 }
cfce8870 189// gMC->Gspos("PM01", 1, "DPMD", 0.,0.,0., 0, "ONLY");
190// gMC->Gspos("PM02", 1, "DPMD", 0.,0.,0., 0, "ONLY");
191// gMC->Gspos("PM03", 1, "DPMD", 0.,0.,0., 0, "ONLY");
192// gMC->Gspos("PM04", 1, "DPMD", 0.,0.,0., 0, "ONLY");
193// gMC->Gspos("PM05", 1, "DPMD", 0.,0.,0., 0, "ONLY");
194// gMC->Gspos("PM06", 1, "DPMD", 0.,0.,0., 0, "ONLY");
195// gMC->Gspos("PM07", 1, "DPMD", 0.,0.,0., 0, "ONLY");
196// gMC->Gspos("PM08", 1, "DPMD", 0.,0.,0., 0, "ONLY");
197// gMC->Gspos("PM09", 1, "DPMD", 0.,0.,0., 0, "ONLY");
198// gMC->Gspos("PM10", 1, "DPMD", 0.,0.,0., 0, "ONLY");
199// gMC->Gspos("PM11", 1, "DPMD", 0.,0.,0., 0, "ONLY");
200// gMC->Gspos("PM12", 1, "DPMD", 0.,0.,0., 0, "ONLY");
201// gMC->Gspos("PM13", 1, "DPMD", 0.,0.,0., 0, "ONLY");
202// gMC->Gspos("PM14", 1, "DPMD", 0.,0.,0., 0, "ONLY");
6edc06da 203// --- Place the DPMD in ALICE with front edge 5.8m from vertex ---
204 xp = 0.;
205 yp = 0.;
206 zp = zdist1;
cfce8870 207// gMC->Gspos("PMDL", 1, "DPMD", xp,yp,0., 0, "ONLY");
208// gMC->Gspos("PMDR", 1, "DPMD", xp,yp,0., 0, "ONLY");
209 gMC->Gspos("DPMD", 1, "ALIC", xp,yp,zp, 0, "ONLY");
6edc06da 210
211}
212
213//_____________________________________________________________________________
214void AliPMDv1::CreatePads()
215{
216 //
217 // Create the geometry of the pads
218 // *** DEFINITION OF THE GEOMETRY OF THE PMD ***
219 // *** HEXAGONAL PADS WITH 10 MM SQUARE EQUIVALENT
220 // -- Author : S. Chattopadhyay, 02/04/1999.
221
222// Basic unit is DP11, a hexagonal cell, which is placed inside another
223// hexagonal cell (DS11) of larger radius, compared to DP11. The difference in r// adius gives the dimension of half width of each cell wall.
224// These cells are placed as 72 x 72 array in a
225// rhombus shaped supermodule (DW11). The rhombus shaped modules are designed
226// to have closed packed structure.
227// Each supermodule (SUPR), made of G10 is filled with following components
228// SMSS --> SS backing,
229// SMAR --> Gap between gas hexagonal cells and G10 backing.
230// DW11 --> Ar-Co2 filled gas hexagonal cells.
231// SMAR
232// These supermodules are placed inside the main module (DM11), with Fe and
233// Pb converter positioned between CPV and PMD.
234// DM11 made of
235// SUPR (rotated to place steel on the other side), this works as preshower
236// when PMD is placed in -ve z.
237// SUPB --> Pb converter
238// SUFE --> Fe backing
239// SUPR --> supermodule without rotation (this acts as CPV).
240//
241
6edc06da 242 const Int_t npad2 = 72;
243 Float_t hexd1[10] = {0.,360.,6,2,-0.4,0.,0.53,0.4,0.,0.53};
244//total wall thickness=0.2*2
245 Float_t hexd2[10] = {0.,360.,6,2,-0.4,0.,0.51,0.4,0.,0.51};
246 Int_t i, j;
247 Float_t xb, yb, zb;//, sw[3];
248 Int_t number;
249 Int_t ihrotm,irotdm;
250 const Float_t root3_cons = sqrt(3) /2.;
ad51aeb0 251 Int_t *idtmed = fIdtmed->GetArray()-599;
6edc06da 252
253 AliMatrix(ihrotm, 90., 30., 90., 120., 0., 0.);
254 AliMatrix(irotdm, 90., 180., 90., 270., 180., 0.);
255 zdist1 = fIn[2];
256 zdist = TMath::Abs(zdist1);
257//
258 Int_t xrow=1;
259 Float_t dpara[6] = {12.5,12.5,0.4,30.,0.,0.};
260 dpara[0]=(npad2+0.25)*hexd1[6];
261 dpara[1] = dpara[0] *root3_cons;
262//
263//Subhasis, dimensional parameters of rhombus (dpara) as given to gsvolu
264// rhombus to accomodate 72 x 72 hexagons, and with total 1.2cm extension
265//(1mm tolerance on both side and 5mm thick G10 wall)
266//
267
268// **** PAD SIZE 10 MM SQUARE EQUIVALENT
269//
270// Inner hex filled with gas
cfce8870 271 gMC->Gsvolu("DP11", "PGON", idtmed[604], hexd2,10);
272 gMC->Gsatt("DP11", "SEEN", 1);
6edc06da 273
274// Outer hex filled with Plastic
cfce8870 275//plastic gMC->Gsvolu("DS11", "PGON", idtmed[616], hexd1,10);
6edc06da 276// Iron
cfce8870 277 gMC->Gsvolu("DS11", "PGON", idtmed[601], hexd1,10);
278 gMC->Gsatt("DS11", "SEEN", 1);
6edc06da 279// --- place inner hex inside outer hex
cfce8870 280 gMC->Gsposp("DP11", 1, "DS11", 0., 0., 0., 0, "ONLY", hexd2, 10);
6edc06da 281// Rhombus shaped supermodules (defined by PARA)
282// volume for SUPERMODULE
283 Float_t dpara_sm[6] = {12.5,12.5,0.8,30.,0.,0.};
284 dpara_sm[0]=(npad2+0.25)*hexd1[6] + 1.2;
285 dpara_sm[1] = dpara_sm[0] *root3_cons;
286//
cfce8870 287 gMC->Gsvolu("SUPR","PARA", idtmed[607], dpara_sm, 6);
288 gMC->Gsatt("SUPR", "SEEN", 1);
6edc06da 289// SS
290 Float_t dpara_ss[6] = {12.5,12.5,8.,30.,0.,0.};
291 dpara_ss[0]= dpara[0];
292 dpara_ss[1]= dpara[1];
293 dpara_ss[2]= 0.3/2.;
294//
cfce8870 295 gMC->Gsvolu("SMSS","PARA", idtmed[601], dpara_ss, 6);
296 gMC->Gsatt("SMSS", "SEEN", 1);
6edc06da 297// Air
298 Float_t dpara_air[6] = {12.5,12.5,8.,30.,0.,0.};
299 dpara_air[0]= dpara[0] - 0.5;
300 dpara_air[1]= dpara_air[0] * root3_cons;
301 dpara_air[2]= 0.1/2.;
cfce8870 302// gMC->Gsvolu("SMAR","PARA", idtmed[604], dpara_air, 6);
303 gMC->Gsvolu("SMAR","PARA", idtmed[698], dpara_air, 6);
304 gMC->Gsatt("SMAR", "SEEN", 1);
6edc06da 305//
306// volume for gas chamber (DW11)
307//
cfce8870 308// gMC->Gsvolu("DW11","PARA", idtmed[604], dpara, 6);
309 gMC->Gsvolu("DW11","PARA", idtmed[698], dpara, 6);
310 gMC->Gsatt("DW11", "SEEN", 1);
6edc06da 311// Place outer hex inside DW11
312 yb = -dpara[1] + (1./root3_cons)*hexd1[6];
313 zb = 0.;
314 for (j = 1; j <= npad2; ++j) {
315 xb =-(dpara[0] + dpara[1]*0.577) + 2*hexd1[6];
316 if(xrow >= 2){
317 xb = xb+(xrow-1)*hexd1[6];
318 }
319 for (i = 1; i <= npad2; ++i) {
320 number = i+(j-1)*npad2;
cfce8870 321 gMC->Gsposp("DS11", number, "DW11", xb, yb, zb, ihrotm, "ONLY", hexd1, 10);
6edc06da 322 xb += (hexd1[6]*2.);
323 }
324 xrow = xrow+1;
325 yb += (hexd1[6]*sqrt(3.));
326 }
327 Float_t z_ss,z_air1,z_air2,z_gas;
328// Place other components inside super module
329 z_ss=-dpara_sm[2]+dpara_ss[2];
cfce8870 330 gMC->Gspos("SMSS", 1, "SUPR", 0., 0., z_ss, 0, "ONLY");
6edc06da 331 z_air1=z_ss+dpara_ss[2] +dpara_air[2];
cfce8870 332 gMC->Gspos("SMAR", 1, "SUPR", 0., 0., z_air1, 0, "ONLY");
6edc06da 333 z_gas=z_air1+dpara_air[2]+dpara[2]+0.1;
cfce8870 334 gMC->Gspos("DW11", 1, "SUPR", 0., 0., z_gas, 0, "ONLY");
6edc06da 335 z_air2=z_gas+dpara[2]+0.1+dpara_air[2];
cfce8870 336 gMC->Gspos("SMAR", 2, "SUPR", 0., 0., z_air2, 0, "ONLY");
6edc06da 337
338// --- DEFINE MODules, iron, and lead voLUMES
339
340
341// volume for SUPERMODULE
342// Pb
343 Float_t dpara_pb[6] = {12.5,12.5,8.,30.,0.,0.};
344 dpara_pb[0]=dpara_sm[0];
345 dpara_pb[1]=dpara_sm[1];
346// dpara_pb[2]=1.1/2.;
347 dpara_pb[2]=1.5/2.;
cfce8870 348 gMC->Gsvolu("SUPB","PARA", idtmed[600], dpara_pb, 6);
349 gMC->Gsatt("SUPB", "SEEN", 1);
6edc06da 350// Fe
351 Float_t dpara_fe[6] = {12.5,12.5,8.,30.,0.,0.};
352 dpara_fe[0]=dpara_sm[0];
353 dpara_fe[1]=dpara_sm[1];
354 dpara_fe[2]=0.5/2.;
cfce8870 355 gMC->Gsvolu("SUFE","PARA", idtmed[601], dpara_fe, 6);
356 gMC->Gsatt("SUFE", "SEEN", 1);
6edc06da 357// volume for DM11
358 Float_t dpara_dm11[6] = {12.5,12.5,0.8,30.,0.,0.};
359 dpara_dm11[0]=dpara_sm[0]+.01;
360 dpara_dm11[1] = dpara_dm11[0] *root3_cons;
361 dpara_dm11[2]= 6.2/2.;
362
363//
cfce8870 364 gMC->Gsvolu("DM11","PARA", idtmed[698], dpara_dm11, 6);
365 gMC->Gsatt("DM11", "SEEN", 1);
6edc06da 366// position super module inside DM11
367 Float_t z_ps,z_pb,z_fe,z_cv;
368 z_ps=-dpara_dm11[2]+dpara_sm[2];
cfce8870 369 gMC->Gspos("SUPR", 1, "DM11", 0., 0., z_ps, irotdm, "ONLY");
6edc06da 370 z_pb=z_ps+dpara_sm[2]+dpara_pb[2];
cfce8870 371 gMC->Gspos("SUPB", 1, "DM11", 0., 0., z_pb, 0, "ONLY");
6edc06da 372 z_fe=z_pb+dpara_pb[2]+dpara_fe[2];
cfce8870 373 gMC->Gspos("SUFE", 1, "DM11", 0., 0., z_fe, 0, "ONLY");
6edc06da 374 z_cv=z_fe+dpara_fe[2]+dpara_sm[2];
cfce8870 375 gMC->Gspos("SUPR", 2, "DM11", 0., 0., z_cv, 0, "ONLY");
6edc06da 376//
377}
378
379//_____________________________________________________________________________
380void AliPMDv1::DrawModule()
381{
382 //
383 // Draw a shaded view of the Photon Multiplicity Detector
384 //
385
cfce8870 386 gMC->Gsatt("*", "seen", -1);
387 gMC->Gsatt("alic", "seen", 0);
6edc06da 388 //
389 // Set the visibility of the components
390 //
cfce8870 391 gMC->Gsatt("DP11","seen",0);
392 gMC->Gsatt("DS11","seen",1);
393 gMC->Gsatt("DW11","seen",0);
394 gMC->Gsatt("DM11","seen",1);
395 gMC->Gsatt("DPMD","seen",0);
6edc06da 396 //
cfce8870 397 gMC->Gdopt("hide", "on");
398 gMC->Gdopt("shad", "on");
399 gMC->Gsatt("*", "fill", 7);
400 gMC->SetClipBox(".");
401 gMC->SetClipBox("*", 0, 3000, -3000, 3000, -6000, 6000);
402 gMC->DefaultRange();
403 gMC->Gdraw("alic", 40, 30, 0, 22, 20.5, .02, .02);
404 gMC->Gdhead(1111, "Photon Multiplicity Detector Version 1");
405 //gMC->Gdman(17, 5, "MAN");
406 gMC->Gdopt("hide", "off");
6edc06da 407}
408
409//_____________________________________________________________________________
410void AliPMDv1::CreateMaterials()
411{
412 //
413 // Create materials for the PMD version 1
414 //
415 // ORIGIN : Y. P. VIYOGI
416 //
417
6edc06da 418 // --- The Argon- CO2 mixture ---
419 Float_t ag[2] = { 39.95 };
420 Float_t zg[2] = { 18. };
421 Float_t wg[2] = { .8,.2 };
422 Float_t dar = .001782; // --- Ar density in g/cm3 ---
423 // --- CO2 ---
424 Float_t ac[2] = { 12.,16. };
425 Float_t zc[2] = { 6.,8. };
426 Float_t wc[2] = { 1.,2. };
427 Float_t dc = .001977;
428 Float_t dco = .002; // --- CO2 density in g/cm3 ---
429
430 Float_t absl, radl, a, d, z;
431 Float_t dg;
432 Float_t x0ar;
433 Float_t buf[1];
434 Int_t nbuf;
435 Float_t asteel[4] = { 55.847,51.9961,58.6934,28.0855 };
436 Float_t zsteel[4] = { 26.,24.,28.,14. };
437 Float_t wsteel[4] = { .715,.18,.1,.005 };
438
ad51aeb0 439 Int_t *idtmed = fIdtmed->GetArray()-599;
6edc06da 440 Int_t isxfld = gAlice->Field()->Integ();
441 Float_t sxmgmx = gAlice->Field()->Max();
442
443 // --- Define the various materials for GEANT ---
444 AliMaterial(1, "Pb $", 207.19, 82., 11.35, .56, 18.5);
445 x0ar = 19.55 / dar;
446 AliMaterial(2, "Argon$", 39.95, 18., dar, x0ar, 6.5e4);
447 AliMixture(3, "CO2 $", ac, zc, dc, -2, wc);
448 AliMaterial(4, "Al $", 26.98, 13., 2.7, 8.9, 18.5);
449 AliMaterial(6, "Fe $", 55.85, 26., 7.87, 1.76, 18.5);
450 AliMaterial(7, "W $", 183.85, 74., 19.3, .35, 10.3);
451 AliMaterial(8, "G10 $", 20., 10., 1.7, 19.4, 999.);
452 AliMaterial(9, "SILIC$", 28.09, 14., 2.33, 9.36, 45.);
453 AliMaterial(10, "Be $", 9.01, 4., 1.848, 35.3, 36.7);
454 AliMaterial(15, "Cu $", 63.54, 29., 8.96, 1.43, 15.);
455 AliMaterial(16, "C $", 12.01, 6., 2.265, 18.8, 49.9);
456 AliMaterial(17, "POLYCARBONATE $", 20., 10., 1.2, 34.6, 999.);
457
458 AliMaterial(96, "MYLAR$", 8.73, 4.55, 1.39, 28.7, 62.);
459 AliMaterial(97, "CONCR$", 20., 10., 2.5, 10.7, 40.);
460 AliMaterial(98, "Vacum$", 1e-9, 1e-9, 1e-9, 1e16, 1e16);
461 AliMaterial(99, "Air $", 14.61, 7.3, .0012, 30420., 67500.);
462 AliMixture(19, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel);
463 // define gas-mixtures
464
465 char namate[21];
cfce8870 466 gMC->Gfmate((*fIdmate)[3], namate, a, z, d, radl, absl, buf, nbuf);
6edc06da 467 ag[1] = a;
468 zg[1] = z;
469 dg = (dar * 4 + dco) / 5;
470 AliMixture(5, "ArCO2$", ag, zg, dg, 2, wg);
471
472 // Define tracking media
ad51aeb0 473 AliMedium(1, "Pb conv.$", 1, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1);
474 AliMedium(2, " S steel$", 19, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1);
475 AliMedium(7, "W conv.$", 7, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1);
476 AliMedium(8, "G10plate$", 8, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1);
477 AliMedium(4, "Al $", 4, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1);
478 AliMedium(6, "Fe $", 6, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1);
479 AliMedium(5, "ArCO2 $", 5, 1, 0, isxfld, sxmgmx, .1, .1, .1, .1);
480 AliMedium(9, "SILICON $", 9, 1, 0, isxfld, sxmgmx, .1, .1, .1, .1);
481 AliMedium(10, "Be $", 10, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1);
482 AliMedium(98, "Vacuum $", 98, 0, 0, isxfld, sxmgmx, 1., .1, .1, 10);
483 AliMedium(99, "Air gaps$", 99, 0, 0, isxfld, sxmgmx, 1., .1, .1, .1);
484 AliMedium(15, "Cu $", 15, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1);
485 AliMedium(16, "C $", 16, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1);
486 AliMedium(17, "PLOYCARB$", 17, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1);
6edc06da 487
488 // --- Generate explicitly delta rays in the iron, aluminium and lead ---
cfce8870 489 gMC->Gstpar(idtmed[600], "LOSS", 3.);
490 gMC->Gstpar(idtmed[600], "DRAY", 1.);
6edc06da 491
cfce8870 492 gMC->Gstpar(idtmed[603], "LOSS", 3.);
493 gMC->Gstpar(idtmed[603], "DRAY", 1.);
6edc06da 494
cfce8870 495 gMC->Gstpar(idtmed[604], "LOSS", 3.);
496 gMC->Gstpar(idtmed[604], "DRAY", 1.);
6edc06da 497
cfce8870 498 gMC->Gstpar(idtmed[605], "LOSS", 3.);
499 gMC->Gstpar(idtmed[605], "DRAY", 1.);
6edc06da 500
cfce8870 501 gMC->Gstpar(idtmed[606], "LOSS", 3.);
502 gMC->Gstpar(idtmed[606], "DRAY", 1.);
6edc06da 503
cfce8870 504 gMC->Gstpar(idtmed[607], "LOSS", 3.);
505 gMC->Gstpar(idtmed[607], "DRAY", 1.);
6edc06da 506
507 // --- Energy cut-offs in the Pb and Al to gain time in tracking ---
508 // --- without affecting the hit patterns ---
cfce8870 509 gMC->Gstpar(idtmed[600], "CUTGAM", 1e-4);
510 gMC->Gstpar(idtmed[600], "CUTELE", 1e-4);
511 gMC->Gstpar(idtmed[600], "CUTNEU", 1e-4);
512 gMC->Gstpar(idtmed[600], "CUTHAD", 1e-4);
513 gMC->Gstpar(idtmed[605], "CUTGAM", 1e-4);
514 gMC->Gstpar(idtmed[605], "CUTELE", 1e-4);
515 gMC->Gstpar(idtmed[605], "CUTNEU", 1e-4);
516 gMC->Gstpar(idtmed[605], "CUTHAD", 1e-4);
517 gMC->Gstpar(idtmed[606], "CUTGAM", 1e-4);
518 gMC->Gstpar(idtmed[606], "CUTELE", 1e-4);
519 gMC->Gstpar(idtmed[606], "CUTNEU", 1e-4);
520 gMC->Gstpar(idtmed[606], "CUTHAD", 1e-4);
521 gMC->Gstpar(idtmed[603], "CUTGAM", 1e-4);
522 gMC->Gstpar(idtmed[603], "CUTELE", 1e-4);
523 gMC->Gstpar(idtmed[603], "CUTNEU", 1e-4);
524 gMC->Gstpar(idtmed[603], "CUTHAD", 1e-4);
525 gMC->Gstpar(idtmed[609], "CUTGAM", 1e-4);
526 gMC->Gstpar(idtmed[609], "CUTELE", 1e-4);
527 gMC->Gstpar(idtmed[609], "CUTNEU", 1e-4);
528 gMC->Gstpar(idtmed[609], "CUTHAD", 1e-4);
6edc06da 529
530 // --- Prevent particles stopping in the gas due to energy cut-off ---
cfce8870 531 gMC->Gstpar(idtmed[604], "CUTGAM", 1e-5);
532 gMC->Gstpar(idtmed[604], "CUTELE", 1e-5);
533 gMC->Gstpar(idtmed[604], "CUTNEU", 1e-5);
534 gMC->Gstpar(idtmed[604], "CUTHAD", 1e-5);
535 gMC->Gstpar(idtmed[604], "CUTMUO", 1e-5);
6edc06da 536}
537
538//_____________________________________________________________________________
539void AliPMDv1::Init()
540{
541 //
542 // Initialises PMD detector after it has been built
543 //
544 Int_t i;
545 kdet=1;
546 //
547 printf("\n");
548 for(i=0;i<35;i++) printf("*");
549 printf(" PMD_INIT ");
550 for(i=0;i<35;i++) printf("*");
551 printf("\n");
552 printf(" PMD simulation package (v1) initialised\n");
553 printf(" parameters of pmd\n");
554 printf("%6d %10.2f %10.2f %10.2f %10.2f %10.2f\n",kdet,thmin,thmax,zdist,thlow,thhigh);
555 //
556 for(i=0;i<80;i++) printf("*");
557 printf("\n");
558 //
ad51aeb0 559 Int_t *idtmed = fIdtmed->GetArray()-599;
6edc06da 560 fMedSens=idtmed[605-1];
561}
562
563//_____________________________________________________________________________
564void AliPMDv1::StepManager()
565{
566 //
567 // Called at each step in the PMD
568 //
569 Int_t copy;
570 Float_t hits[4], destep;
571 Float_t center[3] = {0,0,0};
572 Int_t vol[5];
0a6d8768 573 // char *namep;
6edc06da 574
cfce8870 575 if(gMC->GetMedium() == fMedSens && (destep = gMC->Edep())) {
6edc06da 576
0a6d8768 577 gMC->CurrentVolID(copy);
578// namep=gMC->CurrentVolName();
579// printf("Current vol is %s \n",namep);
6edc06da 580 vol[0]=copy;
0a6d8768 581 gMC->CurrentVolOffID(1,copy);
582// namep=gMC->CurrentVolOffName(1);
583// printf("Current vol 11 is %s \n",namep);
6edc06da 584 vol[1]=copy;
0a6d8768 585 gMC->CurrentVolOffID(2,copy);
586// namep=gMC->CurrentVolOffName(2);
587// printf("Current vol 22 is %s \n",namep);
6edc06da 588 vol[2]=copy;
589// if(strncmp(namep,"DW11",4))vol[2]=1;
0a6d8768 590 gMC->CurrentVolOffID(3,copy);
591// namep=gMC->CurrentVolOffName(3);
592// printf("Current vol 33 is %s \n",namep);
6edc06da 593 vol[3]=copy;
0a6d8768 594 gMC->CurrentVolOffID(4,copy);
595// namep=gMC->CurrentVolOffName(4);
596// printf("Current vol 44 is %s \n",namep);
6edc06da 597 vol[4]=copy;
598// printf("volume number %d,%d,%d,%d,%d \n",vol[0],vol[1],vol[2],vol[3],vol[4]);
cfce8870 599 gMC->Gdtom(center,hits,1);
6edc06da 600 hits[3] = destep*1e9; //Number in eV
601 AddHit(gAlice->CurrentTrack(), vol, hits);
602 }
603}
604
605