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[u/mrichter/AliRoot.git] / PMD / AliPMDv0.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$Log$
18*/
19
6edc06da 20///////////////////////////////////////////////////////////////////////////////
21// //
22// Photon Multiplicity Detector Version 1 //
23// //
24//Begin_Html
25/*
1439f98e 26<img src="picts/AliPMDv0Class.gif">
6edc06da 27*/
28//End_Html
29// //
30///////////////////////////////////////////////////////////////////////////////
31#include "AliPMDv0.h"
32#include "AliRun.h"
33#include "AliMC.h"
34#include "AliConst.h"
35
36static Float_t smod2[3], smod3[3], smod4[3];
37static Int_t maxbox, kdet;
38static Float_t thgas,thmin,thmax,zdist,zdist1,thlow,
39 thhigh,edge;
40static Int_t numqu;
41static Float_t xbox[40][40], ybox[40][40];
42static Int_t pindex[40][40];
43
44ClassImp(AliPMDv0)
45//_____________________________________________________________________________
46AliPMDv0::AliPMDv0() : AliPMD()
47{
48 //
49 // Default constructor
50 //
51 fMedSens=0;
52}
53
54//_____________________________________________________________________________
55AliPMDv0::AliPMDv0(const char *name, const char *title)
56 : AliPMD(name,title)
57{
58 //
59 // Standard constructor
60 //
61 fMedSens=0;
62}
63
64//_____________________________________________________________________________
65void AliPMDv0::Coordnew()
66{
67 //
68 // Find coordinates for pad geometry
69 //
70 // Author Y.P. Viyogi, VECC Calcutta
71 //
72
73 Float_t th1, th2, dbox, dist;
74 //Float_t xoff[40][40], yoff[40][40];
75 Int_t i, j, nbox;
76 Float_t rlow;
77 Int_t xoff1[3], yoff1[3], l;
78 Float_t rhigh, dmax, hole;
79 Int_t kk, nhol;
80 Float_t rr, xx, yy;
81
82 th1 = thmin * kPI / 180;
83 th2 = thmax * kPI / 180;
84 /* ESTIMATES FOR OCTAGON */
85 dist = zdist * TMath::Tan(th2);
86 /* *** 04.06.97 Fixed Module size of 6 cm, 0 mm boundary. */
87 /* *** variable pad sizes of 0.3 mm, 0.5 mm, 1.0 mm and 1.2 mm */
88 dbox = edge * 2 + 24;
89 maxbox = Int_t(dist / dbox + .5);
90 dmax= maxbox * dbox;
91 /* NOW GET THE HOLE SIZE ETC. */
92 hole = zdist * TMath::Tan(th1);
93 nhol = Int_t(hole / dbox + .5);
94 hole = nhol * dbox;
95
96 rlow = zdist * TMath::Tan(thlow * kPI / 180);
97 rhigh = zdist * TMath::Tan(thhigh * kPI / 180);
98 for (i = 1; i <= 40; ++i) {
99 for (j = 1; j <= 40; ++j) {
100 //index[j][i] = 0;
101 //xoff[j][i] = 0;
102 //yoff[j][i] = 0;
103 xbox[j][i] = 0;
104 /* L5: */
105 ybox[j][i] = 0;
106 }
107 }
108
109 // NOW START PLACING THE BOXES IN VARIOUS LAYERS, START FROM THE CENTRE
110
111 yy = dbox / 2;
112 for(i=0;i<3;i++) yoff1[i]=0;
113 nbox = 0;
114 // PRINT*,'MAXBOX=',MAXBOX
115 for (i = 1; i <= maxbox; ++i) {
116 xx = dbox / 2;
117 for(j=0;j<3;j++) xoff1[j]=0;
118 for (j = 1; j <= maxbox; ++j) {
119 rr = sqrt(xx*xx+yy*yy);
120 if (rr >= hole && rr <= dmax) {
121 // BOX CAN BE FITTED
122 //index[j][i] = 2;
123 //if (rr < rlow) index[j][i] = 1;
124 //else if (rr > rhigh) index[j][i] = 3;
125 xbox[j][i] = xx;
126 ybox[j][i] = yy;
127 ++nbox;
128 //xoff[j][i] = xoff1[index[j][i] - 1];
129 //yoff[j][i] = yoff1[index[j][i] - 1];
130 }
131 if (kdet == 1) kk = 1; else kk = 0;
132 for (l = 1; l <= 3; ++l)
133 xoff1[l - 1] += fNumPads[l + kk - 1];
134 xx += dbox;
135 }
136
137 if (kdet == 1) kk = 1; else kk=0;
138
139 for (l = 1; l <= 3; ++l)
140 yoff1[l - 1] += fNumPads[l + kk - 1];
141 yy += dbox;
142 }
143}
144
145//_____________________________________________________________________________
146void AliPMDv0::Coordinates()
147{
148 //
149 // SUBROUTINE TO COMPUTE THE X- AND Y- COORDINATES OF THE BOXES
150 // WHICH CAN FIT INTO THE CIRCULAR REGION BETWEEN THE GIVEN ANGLES.
151 // INPUT : ZDIST, THMIN, THMAX, PADSIZE (FOR INSIDE and OUTSIDE PMD).
152 // ALL DIMENSIONS IN CM.
153 // -- Author : Y.P. VIYOGI, 10/05/1996.
154
155 Float_t hole, dmax, dbox;
156 Int_t nhol;
157 Float_t dist;
158 Int_t nbox;
159 Float_t rlow;
160 Int_t i, j;
161 Float_t rhigh, rr, xx, yy, th1, th2;
162
163 th1 = thmin*kPI/180;
164 th2 = thmax*kPI/180;
165 // ESTIMATES FOR OCTAGON
166 dist = zdist * TMath::Tan(th2);
167 // *** 04.06.97 Fixed Module size of 24 cm, 3 mm boundary.
168 // *** variable pad sizes of 8 mm, 10 mm, 12mm and 15 mm
169 dbox = edge*2 + 24.;
170 maxbox = Int_t(dist / dbox + .5);
171 dmax = maxbox*dbox;
172 // NOW GET THE HOLE SIZE ETC.
173 hole = zdist * TMath::Tan(th1);
174 nhol = Int_t(hole / dbox + .5);
175 hole = nhol * dbox;
176
177 rlow = zdist * TMath::Tan(thlow*kPI/180);
178 rhigh = zdist * TMath::Tan(thhigh*kPI/180);
179 for (i = 0; i < 40; ++i) {
180 for (j = 0; j < 40; ++j) {
181 pindex[j][i] = 0;
182 xbox[j][i] = 0;
183 ybox[j][i] = 0;
184 }
185 }
186
187 // NOW START PLACING THE BOXES IN VARIOUS LAYERS, START FROM THE CENTRE
188 yy = dbox / 2;
189 nbox = 0;
190 for (i = 0; i < maxbox; ++i) {
191 xx = dbox / 2;
192 for (j = 0; j < maxbox; ++j) {
193 rr = TMath::Sqrt(xx*xx + yy*yy);
194 if (rr >= hole && rr <= dmax) { // BOX CAN BE FITTED
195 pindex[j][i] = 2;
196 if (rr < rlow) pindex[j][i] = 1;
197 if (rr > rhigh) pindex[j][i] = 3;
198 xbox[j][i] = xx;
199 ybox[j][i] = yy;
200 ++nbox;
201 }
202 xx += dbox;
203 }
204 yy += dbox;
205 }
206}
207
208//_____________________________________________________________________________
209void AliPMDv0::CreateGeometry()
210{
211 //
212 // Create geometry for Photon Multiplicity Detector Version 1
213 //
214 //Begin_Html
215 /*
1439f98e 216 <img src="picts/AliPMDv0.gif">
6edc06da 217 */
218 //End_Html
219 //Begin_Html
220 /*
1439f98e 221 <img src="picts/AliPMDv0Tree.gif">
6edc06da 222 */
223 //End_Html
224 CreatePads();
225 CreateInside();
226}
227
228//_____________________________________________________________________________
229void AliPMDv0::CreateInside()
230{
231 //
232 // Create inside of Pads
233 //
234 // -- Author : Y.P. VIYOGI, 07/05/1996.
235 // -- Modified: P.V.K.S.Baba(JU), 15-12-97.
236
237 Float_t sipmd[3] = { 300.,300.,5. };
238
239 Int_t i2;
240
241 Float_t xiqa[4], yiqa[4];
242 Int_t inum2, inum3, inum4, i, j, k;
243 Float_t siqad[4];
244 Float_t zd, xd, yd, xp, yp, zp;
245 Int_t idrotm[100];
246
ad51aeb0 247 Int_t *idtmed = fIdtmed->GetArray()-599;
6edc06da 248
249 // VOLUMES Names : begining with D for all PMD volumes,
250 // The names of SIZE variables begin with S and have more meaningful
251 // characters as shown below.
252
253 // VOLUME SIZE MEDIUM : REMARKS
254 // ------ ----- ------ : ---------------------------
255
256 // DPMD SIPMD AIR : INSIDE PMD and its SIZE
257
258
259
260 // *** Define the DPMD Volume and fill with air ***
261
cfce8870 262 gMC->Gsvolu("DPMD", "BOX ", idtmed[698], sipmd, 3);
6edc06da 263
264 // *** Define DIQU Volume and fill with air
265 siqad[0] = sipmd[0] / 2. - 1.;
266 siqad[1] = sipmd[1] / 2. - 1.;
267 siqad[2] = sipmd[2];
cfce8870 268 gMC->Gsvolu("DIQU","BOX ", idtmed[698], siqad, 3);
269 gMC->Gsatt("DIQU", "SEEN", 1);
6edc06da 270
271
272 // --- Place the modules in INSIDE PMD (DPMD)
273 // --- FIRST CALCULATE THE COORDINATES OF THE MODULES WHICH CAN BE
274 // --- ACCOMODATED.
275
276 kdet = 1;
277 Coordinates();
278
279 //inum = 0;
280 zd = 0.;
281 AliMatrix(idrotm[1], 90., 0., 90., 90., 0., 0.);
282 AliMatrix(idrotm[2], 90., 180., 90., 90., 0., 0.);
283 AliMatrix(idrotm[3], 90., 180., 90., 270., 0., 0.);
284 AliMatrix(idrotm[4], 90., 0., 90., 270., 0., 0.);
285 // **** Filling the DIQU Vol. (One Quadrant)
286 inum2 = 0;
287 inum3 = 0;
288 inum4 = 0;
289 for (i = 0; i < maxbox; ++i) {
290 i2 = maxbox;
291 for (j = 0; j < i2; ++j) {
292 if (xbox[j][i] <= 0 && ybox[j][i] <= 0) continue;
293 xd = xbox[j][i] - siqad[0];
294 yd = ybox[j][i] - siqad[1];
295 if (pindex[j][i] == 1) {
296 ++inum2;
cfce8870 297 gMC->Gsposp("DM11", inum2, "DIQU", xd, yd, zd, 0, "ONLY", smod2, 3);
6edc06da 298 }
299 if (pindex[j][i] == 2) {
300 ++inum3;
cfce8870 301 gMC->Gsposp("DM12", inum3, "DIQU", xd, yd, zd, 0, "ONLY", smod3, 3);
6edc06da 302 }
303 if (pindex[j][i] == 3) {
304 ++inum4;
cfce8870 305 gMC->Gsposp("DM13", inum4, "DIQU", xd, yd, zd, 0, "ONLY", smod4, 3);
6edc06da 306 }
307 }
308 }
309 xiqa[0] = siqad[0];
310 xiqa[1] = -siqad[0];
311 xiqa[2] = xiqa[1];
312 xiqa[3] = xiqa[0];
313 yiqa[0] = siqad[0];
314 yiqa[1] = yiqa[0];
315 yiqa[2] = -siqad[0];
316 yiqa[3] = yiqa[2];
317 i2 = numqu;
318 for (k = 1; k <= i2; ++k) {
cfce8870 319 gMC->Gsposp("DIQU", k, "DPMD", xiqa[k-1], yiqa[k-1], zd, idrotm[k], "ONLY", siqad, 3);
6edc06da 320 }
321
322 // --- Place the DPMD in ALICE with front edge 6.0m from vertex ---
323 xp = 0.;
324 yp = 0.;
325 zp = zdist1;
cfce8870 326 gMC->Gspos("DPMD", 1, "ALIC", xp, yp, zp, 0, "ONLY");
6edc06da 327
328}
329
330//_____________________________________________________________________________
331void AliPMDv0::CreatePads()
332{
333 //
334 // Create the geometry of the pads
335 // *** DEFINITION OF THE GEOMETRY OF THE PMD ***
336 // *** DIFFERENT PADS WITH SIZES 8 MM, 10 MM, 12 MM AND 15 MM SQUARE
337 // -- Author : Y.P. VIYOGI, 04/06/1997.
338 // -- Modified: P.V.K.S.Baba(JU), 13-12-97.
339
6edc06da 340 Int_t npad2;
341 Float_t /* scpv1[3], */ scpv2[3] /*, scpv3[3], scpv4[3] */;
342 Float_t spsw1[3], spsw2[3];//, spsw3[3], spsw4[3];
343 Float_t sw[3], xc, yc, zc;
344 Float_t sfe[3];
345 Float_t spb[3], pad1, pad2, pad3, pad4;
346 // VOLUMES Names : begining with D for all PMD volumes,
347
348 // DM11 : MODULE TYPE
349
350 // The names of SIZE variables begin with S and have more meaningful
351 // characters as shown below.
352
353 // VOLUME SIZE MEDIUM : REMARKS
354 // ------ ----- ------ : ---------------------------
355
356 // DPPB SPB PB : PB Converter and its SIZE
357 // DPFE SFE FE : FE Support Plate and its SIZE
358
359 // DW11 SPSW3 G10 : PRESHOWER
360 // DV11 SCPV3 G10 : CPV
361 // ****************** VOLUME TREE ******************
362
363 // DM11 (Module)
364 // |
365 // |
366 // -------------------------------------------------
367 // | | | |
368 // | | | |
369 // DV11( CPV) DPFE DPPB DW11(Preshower)
370 // ************************************************************
371
372
373
ad51aeb0 374 Int_t *idtmed = fIdtmed->GetArray()-599;
6edc06da 375
376 thgas = fPar[2];
377 thmin = fIn[0];
378 thmax = fIn[1];
379 zdist1 = fIn[2];
380 zdist = TMath::Abs(zdist1);
381 thlow = fIn[3];
382 thhigh = fIn[4];
383 edge = fGeo[1];
384 numqu = Int_t(fGeo[2]);
385
386 pad1 = fPadSize[0];
387 pad2 = fPadSize[1];
388 pad3 = fPadSize[2];
389 pad4 = fPadSize[3];
390 npad2 = Int_t(24/fPadSize[1]);
391
392 spsw2[0] = (npad2 * pad2)/2 + edge;
393 spsw2[1] = spsw2[0];
394 spsw2[2] = (thgas + .4) / 2;
395 scpv2[0] = spsw2[0];
396 scpv2[1] = spsw2[1];
397 scpv2[2] = spsw2[2];
398// The modules (DW11 and DV11 are filed with gas, G10 plate is ignored)
cfce8870 399 gMC->Gsvolu("DW11","BOX ", idtmed[604], spsw2, 3);
400 gMC->Gsatt("DW11", "SEEN", 1);
401 gMC->Gsvolu("DV11","BOX ", idtmed[604], spsw2, 3);
402 gMC->Gsatt("DV11", "SEEN", 1);
6edc06da 403
404 // --- DEFINE MODULES, IRON, TUNGSTEN AND LEAD VOLUMES
405
406
407 spb[0] = spsw1[0];
408 spb[1] = spsw1[1];
409 spb[2] = .75;
cfce8870 410 gMC->Gsvolu("DPPB","BOX ", idtmed[600], spb, 3);
411 gMC->Gsatt("DPPB", "SEEN", 1);
6edc06da 412
413 sw[0] = spsw1[0];
414 sw[1] = spsw1[1];
415 sw[2] = 0.9/2.;
cfce8870 416 gMC->Gsvolu("DPW ","BOX ", idtmed[600], sw, 3);
417 gMC->Gsatt("DPW ", "SEEN", 1);
6edc06da 418
419 sfe[0] = spsw1[0];
420 sfe[1] = spsw1[1];
421 sfe[2] = 0.6/2.;
cfce8870 422 gMC->Gsvolu("DPFE","BOX ", idtmed[605], sfe, 3);
423 gMC->Gsatt("DPFE", "SEEN", 1);
6edc06da 424
425 smod2[0] = spsw2[0];
426 smod2[1] = smod2[0];
427 smod2[2] = spsw2[2] + sfe[2] + spb[2] + scpv2[2];
cfce8870 428 gMC->Gsvolu("DM11", "BOX ", idtmed[698], smod2, 3);
6edc06da 429
430 // --- place gas box (as CPV), iron support, lead converter and gas box
431 // --- (preshower) in the module
432 xc = 0.;
433 yc = 0.;
434 // --- First the CPV box
435 zc = -(spsw2[2] + sfe[2] + spb[2] + spsw2[2]) + spsw2[2];
cfce8870 436 gMC->Gspos("DV11", 1, "DM11", xc, yc, zc, 0, "ONLY");
6edc06da 437 // --- Then iron support plate
438 zc = zc + sfe[2] + spsw2[2];
cfce8870 439 gMC->Gspos("DPFE", 1, "DM11", xc, yc, zc, 0, "ONLY");
6edc06da 440 // --- Then lead converter plate
441 zc = zc + sfe[2] + spb[2];
cfce8870 442 gMC->Gspos("DPPB", 1, "DM11", xc, yc, zc, 0, "ONLY");
6edc06da 443 // --- Lastly the preshower box
444 zc = zc + spb[2] + spsw2[2];
cfce8870 445 gMC->Gspos("DW11", 1, "DM11", xc, yc, zc, 0, "ONLY");
6edc06da 446
447}
448
449//_____________________________________________________________________________
450void AliPMDv0::DrawModule()
451{
452 //
453 // Draw a shaded view of the Photon Multiplicity Detector
454 //
455
cfce8870 456 gMC->Gsatt("*", "seen", -1);
457 gMC->Gsatt("alic", "seen", 0);
6edc06da 458 //
459 // Set the visibility of the components
460 //
cfce8870 461 gMC->Gsatt("DW11","seen",0);
462 gMC->Gsatt("DV11","seen",0);
463 gMC->Gsatt("DPPB","seen",1);
464 gMC->Gsatt("DPW ","seen",1);
465 gMC->Gsatt("DPFE","seen",1);
466 gMC->Gsatt("DM11","seen",1);
467 gMC->Gsatt("DPMD","seen",0);
468 gMC->Gsatt("DIQU","seen",0);
6edc06da 469 //
cfce8870 470 gMC->Gdopt("hide", "on");
471 gMC->Gdopt("shad", "on");
472 gMC->Gsatt("*", "fill", 7);
473 gMC->SetClipBox(".");
474 gMC->SetClipBox("*", 0, 3000, -3000, 3000, -6000, 6000);
475 gMC->DefaultRange();
476 gMC->Gdraw("alic", 40, 30, 0, 22, 15.5, .04, .04);
477 gMC->Gdhead(1111, "Photon Multiplicity Detector Version 1");
478 gMC->Gdman(17, 5, "MAN");
479 gMC->Gdopt("hide", "off");
6edc06da 480}
481
482//_____________________________________________________________________________
483void AliPMDv0::CreateMaterials()
484{
485 //
486 // Create materials for the PMD version 1
487 //
488 // ORIGIN : Y. P. VIYOGI
489 //
490
6edc06da 491 // --- The Argon- CO2 mixture ---
492 Float_t ag[2] = { 39.95 };
493 Float_t zg[2] = { 18. };
494 Float_t wg[2] = { .8,.2 };
495 Float_t dar = .001782; // --- Ar density in g/cm3 ---
496 // --- CO2 ---
497 Float_t ac[2] = { 12.,16. };
498 Float_t zc[2] = { 6.,8. };
499 Float_t wc[2] = { 1.,2. };
500 Float_t dc = .001977;
501 Float_t dco = .002; // --- CO2 density in g/cm3 ---
502
503 Float_t absl, radl, a, d, z;
504 Float_t dg;
505 Float_t x0ar;
506 Float_t buf[1];
507 Int_t nbuf;
508
ad51aeb0 509 Int_t *idtmed = fIdtmed->GetArray()-599;
6edc06da 510 Int_t isxfld = gAlice->Field()->Integ();
511 Float_t sxmgmx = gAlice->Field()->Max();
512
513 // --- Define the various materials for GEANT ---
514 AliMaterial(1, "Pb $", 207.19, 82., 11.35, .56, 18.5);
515 x0ar = 19.55 / dar;
516 AliMaterial(2, "Argon$", 39.95, 18., dar, x0ar, 6.5e4);
517 AliMixture(3, "CO2 $", ac, zc, dc, -2, wc);
518 AliMaterial(4, "Al $", 26.98, 13., 2.7, 8.9, 18.5);
519 AliMaterial(6, "Fe $", 55.85, 26., 7.87, 1.76, 18.5);
520 AliMaterial(7, "W $", 183.85, 74., 19.3, .35, 10.3);
521 AliMaterial(8, "G10 $", 20., 10., 1.7, 19.4, 999);
522 AliMaterial(9, "SILIC$", 28.09, 14., 2.33, 9.36, 45.);
523 AliMaterial(10, "Be $", 9.01, 4., 1.848, 35.3, 36.7);
524 AliMaterial(15, "Cu $", 63.54, 29., 8.96, 1.43, 15.);
525 AliMaterial(16, "C $", 12.01, 6., 2.265, 18.8, 49.9);
526
527 AliMaterial(96, "MYLAR$", 8.73, 4.55, 1.39, 28.7, 62.);
528 AliMaterial(97, "CONCR$", 20., 10., 2.5, 10.7, 40.);
529 AliMaterial(98, "Vacum$", 1e-9, 1e-9, 1e-9, 1e16, 1e16);
530 AliMaterial(99, "Air $", 14.61, 7.3, .0012, 30420., 67500.);
531
532 // define gas-mixtures
533
534 char namate[21];
cfce8870 535 gMC->Gfmate((*fIdmate)[3], namate, a, z, d, radl, absl, buf, nbuf);
6edc06da 536 ag[1] = a;
537 zg[1] = z;
538 dg = (dar * 4 + dco) / 5;
539 AliMixture(5, "ArCO2$", ag, zg, dg, 2, wg);
540
541 // Define tracking media
ad51aeb0 542 AliMedium(1, "Pb conv.$", 1, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1);
543 AliMedium(7, "W conv.$", 7, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1);
544 AliMedium(8, "G10plate$", 8, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1);
545 AliMedium(4, "Al $", 4, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1);
546 AliMedium(6, "Fe $", 6, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1);
547 AliMedium(5, "ArCO2 $", 5, 1, 0, isxfld, sxmgmx, .1, .1, .1, .1);
548 AliMedium(9, "SILICON $", 9, 1, 0, isxfld, sxmgmx, .1, .1, .1, .1);
549 AliMedium(10, "Be $", 10, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1);
550 AliMedium(98, "Vacuum $", 98, 0, 0, isxfld, sxmgmx, 1., .1, .1, 10);
551 AliMedium(99, "Air gaps$", 99, 0, 0, isxfld, sxmgmx, 1., .1, .1, .1);
552 AliMedium(15, "Cu $", 15, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1);
553 AliMedium(16, "C $", 16, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1);
6edc06da 554
555 // --- Generate explicitly delta rays in the iron, aluminium and lead ---
cfce8870 556 gMC->Gstpar(idtmed[600], "LOSS", 3.);
557 gMC->Gstpar(idtmed[600], "DRAY", 1.);
6edc06da 558
cfce8870 559 gMC->Gstpar(idtmed[603], "LOSS", 3.);
560 gMC->Gstpar(idtmed[603], "DRAY", 1.);
6edc06da 561
cfce8870 562 gMC->Gstpar(idtmed[604], "LOSS", 3.);
563 gMC->Gstpar(idtmed[604], "DRAY", 1.);
6edc06da 564
cfce8870 565 gMC->Gstpar(idtmed[605], "LOSS", 3.);
566 gMC->Gstpar(idtmed[605], "DRAY", 1.);
6edc06da 567
cfce8870 568 gMC->Gstpar(idtmed[606], "LOSS", 3.);
569 gMC->Gstpar(idtmed[606], "DRAY", 1.);
6edc06da 570
cfce8870 571 gMC->Gstpar(idtmed[607], "LOSS", 3.);
572 gMC->Gstpar(idtmed[607], "DRAY", 1.);
6edc06da 573
574 // --- Energy cut-offs in the Pb and Al to gain time in tracking ---
575 // --- without affecting the hit patterns ---
cfce8870 576 gMC->Gstpar(idtmed[600], "CUTGAM", 1e-4);
577 gMC->Gstpar(idtmed[600], "CUTELE", 1e-4);
578 gMC->Gstpar(idtmed[600], "CUTNEU", 1e-4);
579 gMC->Gstpar(idtmed[600], "CUTHAD", 1e-4);
580 gMC->Gstpar(idtmed[605], "CUTGAM", 1e-4);
581 gMC->Gstpar(idtmed[605], "CUTELE", 1e-4);
582 gMC->Gstpar(idtmed[605], "CUTNEU", 1e-4);
583 gMC->Gstpar(idtmed[605], "CUTHAD", 1e-4);
584 gMC->Gstpar(idtmed[606], "CUTGAM", 1e-4);
585 gMC->Gstpar(idtmed[606], "CUTELE", 1e-4);
586 gMC->Gstpar(idtmed[606], "CUTNEU", 1e-4);
587 gMC->Gstpar(idtmed[606], "CUTHAD", 1e-4);
588 gMC->Gstpar(idtmed[603], "CUTGAM", 1e-4);
589 gMC->Gstpar(idtmed[603], "CUTELE", 1e-4);
590 gMC->Gstpar(idtmed[603], "CUTNEU", 1e-4);
591 gMC->Gstpar(idtmed[603], "CUTHAD", 1e-4);
592 gMC->Gstpar(idtmed[609], "CUTGAM", 1e-4);
593 gMC->Gstpar(idtmed[609], "CUTELE", 1e-4);
594 gMC->Gstpar(idtmed[609], "CUTNEU", 1e-4);
595 gMC->Gstpar(idtmed[609], "CUTHAD", 1e-4);
6edc06da 596
597 // --- Prevent particles stopping in the gas due to energy cut-off ---
cfce8870 598 gMC->Gstpar(idtmed[604], "CUTGAM", 1e-5);
599 gMC->Gstpar(idtmed[604], "CUTELE", 1e-5);
600 gMC->Gstpar(idtmed[604], "CUTNEU", 1e-5);
601 gMC->Gstpar(idtmed[604], "CUTHAD", 1e-5);
602 gMC->Gstpar(idtmed[604], "CUTMUO", 1e-5);
6edc06da 603}
604
605//_____________________________________________________________________________
606void AliPMDv0::Init()
607{
608 //
609 // Initialises PMD detector after it has been built
610 //
611 Int_t i;
612 kdet=1;
613 //
614 printf("\n");
615 for(i=0;i<35;i++) printf("*");
616 printf(" PMD_INIT ");
617 for(i=0;i<35;i++) printf("*");
618 printf("\n");
619 printf(" PMD simulation package initialised\n");
620 printf(" parameters of pmd\n");
621 printf("%6d %10.2f %10.2f %10.2f %10.2f %10.2f\n",kdet,thmin,thmax,zdist,thlow,thhigh);
622 //
623 for(i=0;i<80;i++) printf("*");
624 printf("\n");
625 //
ad51aeb0 626 Int_t *idtmed = fIdtmed->GetArray()-599;
6edc06da 627 fMedSens=idtmed[605-1];
628}
629
630//_____________________________________________________________________________
631void AliPMDv0::StepManager()
632{
633 //
634 // Called at each step in the PMD
635 //
636 Int_t copy;
637 Float_t hits[4], destep;
638 Float_t center[3] = {0,0,0};
639 Int_t vol[5];
0a6d8768 640 const char* namep;
6edc06da 641
cfce8870 642 if(gMC->GetMedium() == fMedSens && (destep = gMC->Edep())) {
6edc06da 643
0a6d8768 644 gMC->CurrentVolID(copy);
6edc06da 645 vol[0]=copy;
0a6d8768 646 gMC->CurrentVolOffID(1,copy);
6edc06da 647 vol[1]=copy;
0a6d8768 648 gMC->CurrentVolOffID(2,copy);
649 namep=gMC->CurrentVolOffName(2);
6edc06da 650 vol[2]=copy;
651 if(strncmp(namep,"DW11",4))vol[2]=1;
652 if(strncmp(namep,"DV11",4))vol[2]=2;
0a6d8768 653 gMC->CurrentVolOffID(3,copy);
6edc06da 654 vol[3]=copy;
0a6d8768 655 gMC->CurrentVolOffID(4,copy);
6edc06da 656 vol[4]=copy;
cfce8870 657 gMC->Gdtom(center,hits,1);
6edc06da 658 hits[3] = destep*1e9; //Number in eV
659 AddHit(gAlice->CurrentTrack(), vol, hits);
660 }
661}