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New geometry files from R.Barbera
[u/mrichter/AliRoot.git] / PMD / AliPMDv0.cxx
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6edc06da 1///////////////////////////////////////////////////////////////////////////////
2// //
3// Photon Multiplicity Detector Version 1 //
4// //
5//Begin_Html
6/*
1439f98e 7<img src="picts/AliPMDv0Class.gif">
6edc06da 8*/
9//End_Html
10// //
11///////////////////////////////////////////////////////////////////////////////
12#include "AliPMDv0.h"
13#include "AliRun.h"
14#include "AliMC.h"
15#include "AliConst.h"
16
17static Float_t smod2[3], smod3[3], smod4[3];
18static Int_t maxbox, kdet;
19static Float_t thgas,thmin,thmax,zdist,zdist1,thlow,
20 thhigh,edge;
21static Int_t numqu;
22static Float_t xbox[40][40], ybox[40][40];
23static Int_t pindex[40][40];
24
25ClassImp(AliPMDv0)
26//_____________________________________________________________________________
27AliPMDv0::AliPMDv0() : AliPMD()
28{
29 //
30 // Default constructor
31 //
32 fMedSens=0;
33}
34
35//_____________________________________________________________________________
36AliPMDv0::AliPMDv0(const char *name, const char *title)
37 : AliPMD(name,title)
38{
39 //
40 // Standard constructor
41 //
42 fMedSens=0;
43}
44
45//_____________________________________________________________________________
46void AliPMDv0::Coordnew()
47{
48 //
49 // Find coordinates for pad geometry
50 //
51 // Author Y.P. Viyogi, VECC Calcutta
52 //
53
54 Float_t th1, th2, dbox, dist;
55 //Float_t xoff[40][40], yoff[40][40];
56 Int_t i, j, nbox;
57 Float_t rlow;
58 Int_t xoff1[3], yoff1[3], l;
59 Float_t rhigh, dmax, hole;
60 Int_t kk, nhol;
61 Float_t rr, xx, yy;
62
63 th1 = thmin * kPI / 180;
64 th2 = thmax * kPI / 180;
65 /* ESTIMATES FOR OCTAGON */
66 dist = zdist * TMath::Tan(th2);
67 /* *** 04.06.97 Fixed Module size of 6 cm, 0 mm boundary. */
68 /* *** variable pad sizes of 0.3 mm, 0.5 mm, 1.0 mm and 1.2 mm */
69 dbox = edge * 2 + 24;
70 maxbox = Int_t(dist / dbox + .5);
71 dmax= maxbox * dbox;
72 /* NOW GET THE HOLE SIZE ETC. */
73 hole = zdist * TMath::Tan(th1);
74 nhol = Int_t(hole / dbox + .5);
75 hole = nhol * dbox;
76
77 rlow = zdist * TMath::Tan(thlow * kPI / 180);
78 rhigh = zdist * TMath::Tan(thhigh * kPI / 180);
79 for (i = 1; i <= 40; ++i) {
80 for (j = 1; j <= 40; ++j) {
81 //index[j][i] = 0;
82 //xoff[j][i] = 0;
83 //yoff[j][i] = 0;
84 xbox[j][i] = 0;
85 /* L5: */
86 ybox[j][i] = 0;
87 }
88 }
89
90 // NOW START PLACING THE BOXES IN VARIOUS LAYERS, START FROM THE CENTRE
91
92 yy = dbox / 2;
93 for(i=0;i<3;i++) yoff1[i]=0;
94 nbox = 0;
95 // PRINT*,'MAXBOX=',MAXBOX
96 for (i = 1; i <= maxbox; ++i) {
97 xx = dbox / 2;
98 for(j=0;j<3;j++) xoff1[j]=0;
99 for (j = 1; j <= maxbox; ++j) {
100 rr = sqrt(xx*xx+yy*yy);
101 if (rr >= hole && rr <= dmax) {
102 // BOX CAN BE FITTED
103 //index[j][i] = 2;
104 //if (rr < rlow) index[j][i] = 1;
105 //else if (rr > rhigh) index[j][i] = 3;
106 xbox[j][i] = xx;
107 ybox[j][i] = yy;
108 ++nbox;
109 //xoff[j][i] = xoff1[index[j][i] - 1];
110 //yoff[j][i] = yoff1[index[j][i] - 1];
111 }
112 if (kdet == 1) kk = 1; else kk = 0;
113 for (l = 1; l <= 3; ++l)
114 xoff1[l - 1] += fNumPads[l + kk - 1];
115 xx += dbox;
116 }
117
118 if (kdet == 1) kk = 1; else kk=0;
119
120 for (l = 1; l <= 3; ++l)
121 yoff1[l - 1] += fNumPads[l + kk - 1];
122 yy += dbox;
123 }
124}
125
126//_____________________________________________________________________________
127void AliPMDv0::Coordinates()
128{
129 //
130 // SUBROUTINE TO COMPUTE THE X- AND Y- COORDINATES OF THE BOXES
131 // WHICH CAN FIT INTO THE CIRCULAR REGION BETWEEN THE GIVEN ANGLES.
132 // INPUT : ZDIST, THMIN, THMAX, PADSIZE (FOR INSIDE and OUTSIDE PMD).
133 // ALL DIMENSIONS IN CM.
134 // -- Author : Y.P. VIYOGI, 10/05/1996.
135
136 Float_t hole, dmax, dbox;
137 Int_t nhol;
138 Float_t dist;
139 Int_t nbox;
140 Float_t rlow;
141 Int_t i, j;
142 Float_t rhigh, rr, xx, yy, th1, th2;
143
144 th1 = thmin*kPI/180;
145 th2 = thmax*kPI/180;
146 // ESTIMATES FOR OCTAGON
147 dist = zdist * TMath::Tan(th2);
148 // *** 04.06.97 Fixed Module size of 24 cm, 3 mm boundary.
149 // *** variable pad sizes of 8 mm, 10 mm, 12mm and 15 mm
150 dbox = edge*2 + 24.;
151 maxbox = Int_t(dist / dbox + .5);
152 dmax = maxbox*dbox;
153 // NOW GET THE HOLE SIZE ETC.
154 hole = zdist * TMath::Tan(th1);
155 nhol = Int_t(hole / dbox + .5);
156 hole = nhol * dbox;
157
158 rlow = zdist * TMath::Tan(thlow*kPI/180);
159 rhigh = zdist * TMath::Tan(thhigh*kPI/180);
160 for (i = 0; i < 40; ++i) {
161 for (j = 0; j < 40; ++j) {
162 pindex[j][i] = 0;
163 xbox[j][i] = 0;
164 ybox[j][i] = 0;
165 }
166 }
167
168 // NOW START PLACING THE BOXES IN VARIOUS LAYERS, START FROM THE CENTRE
169 yy = dbox / 2;
170 nbox = 0;
171 for (i = 0; i < maxbox; ++i) {
172 xx = dbox / 2;
173 for (j = 0; j < maxbox; ++j) {
174 rr = TMath::Sqrt(xx*xx + yy*yy);
175 if (rr >= hole && rr <= dmax) { // BOX CAN BE FITTED
176 pindex[j][i] = 2;
177 if (rr < rlow) pindex[j][i] = 1;
178 if (rr > rhigh) pindex[j][i] = 3;
179 xbox[j][i] = xx;
180 ybox[j][i] = yy;
181 ++nbox;
182 }
183 xx += dbox;
184 }
185 yy += dbox;
186 }
187}
188
189//_____________________________________________________________________________
190void AliPMDv0::CreateGeometry()
191{
192 //
193 // Create geometry for Photon Multiplicity Detector Version 1
194 //
195 //Begin_Html
196 /*
1439f98e 197 <img src="picts/AliPMDv0.gif">
6edc06da 198 */
199 //End_Html
200 //Begin_Html
201 /*
1439f98e 202 <img src="picts/AliPMDv0Tree.gif">
6edc06da 203 */
204 //End_Html
205 CreatePads();
206 CreateInside();
207}
208
209//_____________________________________________________________________________
210void AliPMDv0::CreateInside()
211{
212 //
213 // Create inside of Pads
214 //
215 // -- Author : Y.P. VIYOGI, 07/05/1996.
216 // -- Modified: P.V.K.S.Baba(JU), 15-12-97.
217
218 Float_t sipmd[3] = { 300.,300.,5. };
219
220 Int_t i2;
221
222 Float_t xiqa[4], yiqa[4];
223 Int_t inum2, inum3, inum4, i, j, k;
224 Float_t siqad[4];
225 Float_t zd, xd, yd, xp, yp, zp;
226 Int_t idrotm[100];
227
ad51aeb0 228 Int_t *idtmed = fIdtmed->GetArray()-599;
6edc06da 229
230 // VOLUMES Names : begining with D for all PMD volumes,
231 // The names of SIZE variables begin with S and have more meaningful
232 // characters as shown below.
233
234 // VOLUME SIZE MEDIUM : REMARKS
235 // ------ ----- ------ : ---------------------------
236
237 // DPMD SIPMD AIR : INSIDE PMD and its SIZE
238
239
240
241 // *** Define the DPMD Volume and fill with air ***
242
cfce8870 243 gMC->Gsvolu("DPMD", "BOX ", idtmed[698], sipmd, 3);
6edc06da 244
245 // *** Define DIQU Volume and fill with air
246 siqad[0] = sipmd[0] / 2. - 1.;
247 siqad[1] = sipmd[1] / 2. - 1.;
248 siqad[2] = sipmd[2];
cfce8870 249 gMC->Gsvolu("DIQU","BOX ", idtmed[698], siqad, 3);
250 gMC->Gsatt("DIQU", "SEEN", 1);
6edc06da 251
252
253 // --- Place the modules in INSIDE PMD (DPMD)
254 // --- FIRST CALCULATE THE COORDINATES OF THE MODULES WHICH CAN BE
255 // --- ACCOMODATED.
256
257 kdet = 1;
258 Coordinates();
259
260 //inum = 0;
261 zd = 0.;
262 AliMatrix(idrotm[1], 90., 0., 90., 90., 0., 0.);
263 AliMatrix(idrotm[2], 90., 180., 90., 90., 0., 0.);
264 AliMatrix(idrotm[3], 90., 180., 90., 270., 0., 0.);
265 AliMatrix(idrotm[4], 90., 0., 90., 270., 0., 0.);
266 // **** Filling the DIQU Vol. (One Quadrant)
267 inum2 = 0;
268 inum3 = 0;
269 inum4 = 0;
270 for (i = 0; i < maxbox; ++i) {
271 i2 = maxbox;
272 for (j = 0; j < i2; ++j) {
273 if (xbox[j][i] <= 0 && ybox[j][i] <= 0) continue;
274 xd = xbox[j][i] - siqad[0];
275 yd = ybox[j][i] - siqad[1];
276 if (pindex[j][i] == 1) {
277 ++inum2;
cfce8870 278 gMC->Gsposp("DM11", inum2, "DIQU", xd, yd, zd, 0, "ONLY", smod2, 3);
6edc06da 279 }
280 if (pindex[j][i] == 2) {
281 ++inum3;
cfce8870 282 gMC->Gsposp("DM12", inum3, "DIQU", xd, yd, zd, 0, "ONLY", smod3, 3);
6edc06da 283 }
284 if (pindex[j][i] == 3) {
285 ++inum4;
cfce8870 286 gMC->Gsposp("DM13", inum4, "DIQU", xd, yd, zd, 0, "ONLY", smod4, 3);
6edc06da 287 }
288 }
289 }
290 xiqa[0] = siqad[0];
291 xiqa[1] = -siqad[0];
292 xiqa[2] = xiqa[1];
293 xiqa[3] = xiqa[0];
294 yiqa[0] = siqad[0];
295 yiqa[1] = yiqa[0];
296 yiqa[2] = -siqad[0];
297 yiqa[3] = yiqa[2];
298 i2 = numqu;
299 for (k = 1; k <= i2; ++k) {
cfce8870 300 gMC->Gsposp("DIQU", k, "DPMD", xiqa[k-1], yiqa[k-1], zd, idrotm[k], "ONLY", siqad, 3);
6edc06da 301 }
302
303 // --- Place the DPMD in ALICE with front edge 6.0m from vertex ---
304 xp = 0.;
305 yp = 0.;
306 zp = zdist1;
cfce8870 307 gMC->Gspos("DPMD", 1, "ALIC", xp, yp, zp, 0, "ONLY");
6edc06da 308
309}
310
311//_____________________________________________________________________________
312void AliPMDv0::CreatePads()
313{
314 //
315 // Create the geometry of the pads
316 // *** DEFINITION OF THE GEOMETRY OF THE PMD ***
317 // *** DIFFERENT PADS WITH SIZES 8 MM, 10 MM, 12 MM AND 15 MM SQUARE
318 // -- Author : Y.P. VIYOGI, 04/06/1997.
319 // -- Modified: P.V.K.S.Baba(JU), 13-12-97.
320
6edc06da 321 Int_t npad2;
322 Float_t /* scpv1[3], */ scpv2[3] /*, scpv3[3], scpv4[3] */;
323 Float_t spsw1[3], spsw2[3];//, spsw3[3], spsw4[3];
324 Float_t sw[3], xc, yc, zc;
325 Float_t sfe[3];
326 Float_t spb[3], pad1, pad2, pad3, pad4;
327 // VOLUMES Names : begining with D for all PMD volumes,
328
329 // DM11 : MODULE TYPE
330
331 // The names of SIZE variables begin with S and have more meaningful
332 // characters as shown below.
333
334 // VOLUME SIZE MEDIUM : REMARKS
335 // ------ ----- ------ : ---------------------------
336
337 // DPPB SPB PB : PB Converter and its SIZE
338 // DPFE SFE FE : FE Support Plate and its SIZE
339
340 // DW11 SPSW3 G10 : PRESHOWER
341 // DV11 SCPV3 G10 : CPV
342 // ****************** VOLUME TREE ******************
343
344 // DM11 (Module)
345 // |
346 // |
347 // -------------------------------------------------
348 // | | | |
349 // | | | |
350 // DV11( CPV) DPFE DPPB DW11(Preshower)
351 // ************************************************************
352
353
354
ad51aeb0 355 Int_t *idtmed = fIdtmed->GetArray()-599;
6edc06da 356
357 thgas = fPar[2];
358 thmin = fIn[0];
359 thmax = fIn[1];
360 zdist1 = fIn[2];
361 zdist = TMath::Abs(zdist1);
362 thlow = fIn[3];
363 thhigh = fIn[4];
364 edge = fGeo[1];
365 numqu = Int_t(fGeo[2]);
366
367 pad1 = fPadSize[0];
368 pad2 = fPadSize[1];
369 pad3 = fPadSize[2];
370 pad4 = fPadSize[3];
371 npad2 = Int_t(24/fPadSize[1]);
372
373 spsw2[0] = (npad2 * pad2)/2 + edge;
374 spsw2[1] = spsw2[0];
375 spsw2[2] = (thgas + .4) / 2;
376 scpv2[0] = spsw2[0];
377 scpv2[1] = spsw2[1];
378 scpv2[2] = spsw2[2];
379// The modules (DW11 and DV11 are filed with gas, G10 plate is ignored)
cfce8870 380 gMC->Gsvolu("DW11","BOX ", idtmed[604], spsw2, 3);
381 gMC->Gsatt("DW11", "SEEN", 1);
382 gMC->Gsvolu("DV11","BOX ", idtmed[604], spsw2, 3);
383 gMC->Gsatt("DV11", "SEEN", 1);
6edc06da 384
385 // --- DEFINE MODULES, IRON, TUNGSTEN AND LEAD VOLUMES
386
387
388 spb[0] = spsw1[0];
389 spb[1] = spsw1[1];
390 spb[2] = .75;
cfce8870 391 gMC->Gsvolu("DPPB","BOX ", idtmed[600], spb, 3);
392 gMC->Gsatt("DPPB", "SEEN", 1);
6edc06da 393
394 sw[0] = spsw1[0];
395 sw[1] = spsw1[1];
396 sw[2] = 0.9/2.;
cfce8870 397 gMC->Gsvolu("DPW ","BOX ", idtmed[600], sw, 3);
398 gMC->Gsatt("DPW ", "SEEN", 1);
6edc06da 399
400 sfe[0] = spsw1[0];
401 sfe[1] = spsw1[1];
402 sfe[2] = 0.6/2.;
cfce8870 403 gMC->Gsvolu("DPFE","BOX ", idtmed[605], sfe, 3);
404 gMC->Gsatt("DPFE", "SEEN", 1);
6edc06da 405
406 smod2[0] = spsw2[0];
407 smod2[1] = smod2[0];
408 smod2[2] = spsw2[2] + sfe[2] + spb[2] + scpv2[2];
cfce8870 409 gMC->Gsvolu("DM11", "BOX ", idtmed[698], smod2, 3);
6edc06da 410
411 // --- place gas box (as CPV), iron support, lead converter and gas box
412 // --- (preshower) in the module
413 xc = 0.;
414 yc = 0.;
415 // --- First the CPV box
416 zc = -(spsw2[2] + sfe[2] + spb[2] + spsw2[2]) + spsw2[2];
cfce8870 417 gMC->Gspos("DV11", 1, "DM11", xc, yc, zc, 0, "ONLY");
6edc06da 418 // --- Then iron support plate
419 zc = zc + sfe[2] + spsw2[2];
cfce8870 420 gMC->Gspos("DPFE", 1, "DM11", xc, yc, zc, 0, "ONLY");
6edc06da 421 // --- Then lead converter plate
422 zc = zc + sfe[2] + spb[2];
cfce8870 423 gMC->Gspos("DPPB", 1, "DM11", xc, yc, zc, 0, "ONLY");
6edc06da 424 // --- Lastly the preshower box
425 zc = zc + spb[2] + spsw2[2];
cfce8870 426 gMC->Gspos("DW11", 1, "DM11", xc, yc, zc, 0, "ONLY");
6edc06da 427
428}
429
430//_____________________________________________________________________________
431void AliPMDv0::DrawModule()
432{
433 //
434 // Draw a shaded view of the Photon Multiplicity Detector
435 //
436
cfce8870 437 gMC->Gsatt("*", "seen", -1);
438 gMC->Gsatt("alic", "seen", 0);
6edc06da 439 //
440 // Set the visibility of the components
441 //
cfce8870 442 gMC->Gsatt("DW11","seen",0);
443 gMC->Gsatt("DV11","seen",0);
444 gMC->Gsatt("DPPB","seen",1);
445 gMC->Gsatt("DPW ","seen",1);
446 gMC->Gsatt("DPFE","seen",1);
447 gMC->Gsatt("DM11","seen",1);
448 gMC->Gsatt("DPMD","seen",0);
449 gMC->Gsatt("DIQU","seen",0);
6edc06da 450 //
cfce8870 451 gMC->Gdopt("hide", "on");
452 gMC->Gdopt("shad", "on");
453 gMC->Gsatt("*", "fill", 7);
454 gMC->SetClipBox(".");
455 gMC->SetClipBox("*", 0, 3000, -3000, 3000, -6000, 6000);
456 gMC->DefaultRange();
457 gMC->Gdraw("alic", 40, 30, 0, 22, 15.5, .04, .04);
458 gMC->Gdhead(1111, "Photon Multiplicity Detector Version 1");
459 gMC->Gdman(17, 5, "MAN");
460 gMC->Gdopt("hide", "off");
6edc06da 461}
462
463//_____________________________________________________________________________
464void AliPMDv0::CreateMaterials()
465{
466 //
467 // Create materials for the PMD version 1
468 //
469 // ORIGIN : Y. P. VIYOGI
470 //
471
6edc06da 472 // --- The Argon- CO2 mixture ---
473 Float_t ag[2] = { 39.95 };
474 Float_t zg[2] = { 18. };
475 Float_t wg[2] = { .8,.2 };
476 Float_t dar = .001782; // --- Ar density in g/cm3 ---
477 // --- CO2 ---
478 Float_t ac[2] = { 12.,16. };
479 Float_t zc[2] = { 6.,8. };
480 Float_t wc[2] = { 1.,2. };
481 Float_t dc = .001977;
482 Float_t dco = .002; // --- CO2 density in g/cm3 ---
483
484 Float_t absl, radl, a, d, z;
485 Float_t dg;
486 Float_t x0ar;
487 Float_t buf[1];
488 Int_t nbuf;
489
ad51aeb0 490 Int_t *idtmed = fIdtmed->GetArray()-599;
6edc06da 491 Int_t isxfld = gAlice->Field()->Integ();
492 Float_t sxmgmx = gAlice->Field()->Max();
493
494 // --- Define the various materials for GEANT ---
495 AliMaterial(1, "Pb $", 207.19, 82., 11.35, .56, 18.5);
496 x0ar = 19.55 / dar;
497 AliMaterial(2, "Argon$", 39.95, 18., dar, x0ar, 6.5e4);
498 AliMixture(3, "CO2 $", ac, zc, dc, -2, wc);
499 AliMaterial(4, "Al $", 26.98, 13., 2.7, 8.9, 18.5);
500 AliMaterial(6, "Fe $", 55.85, 26., 7.87, 1.76, 18.5);
501 AliMaterial(7, "W $", 183.85, 74., 19.3, .35, 10.3);
502 AliMaterial(8, "G10 $", 20., 10., 1.7, 19.4, 999);
503 AliMaterial(9, "SILIC$", 28.09, 14., 2.33, 9.36, 45.);
504 AliMaterial(10, "Be $", 9.01, 4., 1.848, 35.3, 36.7);
505 AliMaterial(15, "Cu $", 63.54, 29., 8.96, 1.43, 15.);
506 AliMaterial(16, "C $", 12.01, 6., 2.265, 18.8, 49.9);
507
508 AliMaterial(96, "MYLAR$", 8.73, 4.55, 1.39, 28.7, 62.);
509 AliMaterial(97, "CONCR$", 20., 10., 2.5, 10.7, 40.);
510 AliMaterial(98, "Vacum$", 1e-9, 1e-9, 1e-9, 1e16, 1e16);
511 AliMaterial(99, "Air $", 14.61, 7.3, .0012, 30420., 67500.);
512
513 // define gas-mixtures
514
515 char namate[21];
cfce8870 516 gMC->Gfmate((*fIdmate)[3], namate, a, z, d, radl, absl, buf, nbuf);
6edc06da 517 ag[1] = a;
518 zg[1] = z;
519 dg = (dar * 4 + dco) / 5;
520 AliMixture(5, "ArCO2$", ag, zg, dg, 2, wg);
521
522 // Define tracking media
ad51aeb0 523 AliMedium(1, "Pb conv.$", 1, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1);
524 AliMedium(7, "W conv.$", 7, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1);
525 AliMedium(8, "G10plate$", 8, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1);
526 AliMedium(4, "Al $", 4, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1);
527 AliMedium(6, "Fe $", 6, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1);
528 AliMedium(5, "ArCO2 $", 5, 1, 0, isxfld, sxmgmx, .1, .1, .1, .1);
529 AliMedium(9, "SILICON $", 9, 1, 0, isxfld, sxmgmx, .1, .1, .1, .1);
530 AliMedium(10, "Be $", 10, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1);
531 AliMedium(98, "Vacuum $", 98, 0, 0, isxfld, sxmgmx, 1., .1, .1, 10);
532 AliMedium(99, "Air gaps$", 99, 0, 0, isxfld, sxmgmx, 1., .1, .1, .1);
533 AliMedium(15, "Cu $", 15, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1);
534 AliMedium(16, "C $", 16, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1);
6edc06da 535
536 // --- Generate explicitly delta rays in the iron, aluminium and lead ---
cfce8870 537 gMC->Gstpar(idtmed[600], "LOSS", 3.);
538 gMC->Gstpar(idtmed[600], "DRAY", 1.);
6edc06da 539
cfce8870 540 gMC->Gstpar(idtmed[603], "LOSS", 3.);
541 gMC->Gstpar(idtmed[603], "DRAY", 1.);
6edc06da 542
cfce8870 543 gMC->Gstpar(idtmed[604], "LOSS", 3.);
544 gMC->Gstpar(idtmed[604], "DRAY", 1.);
6edc06da 545
cfce8870 546 gMC->Gstpar(idtmed[605], "LOSS", 3.);
547 gMC->Gstpar(idtmed[605], "DRAY", 1.);
6edc06da 548
cfce8870 549 gMC->Gstpar(idtmed[606], "LOSS", 3.);
550 gMC->Gstpar(idtmed[606], "DRAY", 1.);
6edc06da 551
cfce8870 552 gMC->Gstpar(idtmed[607], "LOSS", 3.);
553 gMC->Gstpar(idtmed[607], "DRAY", 1.);
6edc06da 554
555 // --- Energy cut-offs in the Pb and Al to gain time in tracking ---
556 // --- without affecting the hit patterns ---
cfce8870 557 gMC->Gstpar(idtmed[600], "CUTGAM", 1e-4);
558 gMC->Gstpar(idtmed[600], "CUTELE", 1e-4);
559 gMC->Gstpar(idtmed[600], "CUTNEU", 1e-4);
560 gMC->Gstpar(idtmed[600], "CUTHAD", 1e-4);
561 gMC->Gstpar(idtmed[605], "CUTGAM", 1e-4);
562 gMC->Gstpar(idtmed[605], "CUTELE", 1e-4);
563 gMC->Gstpar(idtmed[605], "CUTNEU", 1e-4);
564 gMC->Gstpar(idtmed[605], "CUTHAD", 1e-4);
565 gMC->Gstpar(idtmed[606], "CUTGAM", 1e-4);
566 gMC->Gstpar(idtmed[606], "CUTELE", 1e-4);
567 gMC->Gstpar(idtmed[606], "CUTNEU", 1e-4);
568 gMC->Gstpar(idtmed[606], "CUTHAD", 1e-4);
569 gMC->Gstpar(idtmed[603], "CUTGAM", 1e-4);
570 gMC->Gstpar(idtmed[603], "CUTELE", 1e-4);
571 gMC->Gstpar(idtmed[603], "CUTNEU", 1e-4);
572 gMC->Gstpar(idtmed[603], "CUTHAD", 1e-4);
573 gMC->Gstpar(idtmed[609], "CUTGAM", 1e-4);
574 gMC->Gstpar(idtmed[609], "CUTELE", 1e-4);
575 gMC->Gstpar(idtmed[609], "CUTNEU", 1e-4);
576 gMC->Gstpar(idtmed[609], "CUTHAD", 1e-4);
6edc06da 577
578 // --- Prevent particles stopping in the gas due to energy cut-off ---
cfce8870 579 gMC->Gstpar(idtmed[604], "CUTGAM", 1e-5);
580 gMC->Gstpar(idtmed[604], "CUTELE", 1e-5);
581 gMC->Gstpar(idtmed[604], "CUTNEU", 1e-5);
582 gMC->Gstpar(idtmed[604], "CUTHAD", 1e-5);
583 gMC->Gstpar(idtmed[604], "CUTMUO", 1e-5);
6edc06da 584}
585
586//_____________________________________________________________________________
587void AliPMDv0::Init()
588{
589 //
590 // Initialises PMD detector after it has been built
591 //
592 Int_t i;
593 kdet=1;
594 //
595 printf("\n");
596 for(i=0;i<35;i++) printf("*");
597 printf(" PMD_INIT ");
598 for(i=0;i<35;i++) printf("*");
599 printf("\n");
600 printf(" PMD simulation package initialised\n");
601 printf(" parameters of pmd\n");
602 printf("%6d %10.2f %10.2f %10.2f %10.2f %10.2f\n",kdet,thmin,thmax,zdist,thlow,thhigh);
603 //
604 for(i=0;i<80;i++) printf("*");
605 printf("\n");
606 //
ad51aeb0 607 Int_t *idtmed = fIdtmed->GetArray()-599;
6edc06da 608 fMedSens=idtmed[605-1];
609}
610
611//_____________________________________________________________________________
612void AliPMDv0::StepManager()
613{
614 //
615 // Called at each step in the PMD
616 //
617 Int_t copy;
618 Float_t hits[4], destep;
619 Float_t center[3] = {0,0,0};
620 Int_t vol[5];
0a6d8768 621 const char* namep;
6edc06da 622
cfce8870 623 if(gMC->GetMedium() == fMedSens && (destep = gMC->Edep())) {
6edc06da 624
0a6d8768 625 gMC->CurrentVolID(copy);
6edc06da 626 vol[0]=copy;
0a6d8768 627 gMC->CurrentVolOffID(1,copy);
6edc06da 628 vol[1]=copy;
0a6d8768 629 gMC->CurrentVolOffID(2,copy);
630 namep=gMC->CurrentVolOffName(2);
6edc06da 631 vol[2]=copy;
632 if(strncmp(namep,"DW11",4))vol[2]=1;
633 if(strncmp(namep,"DV11",4))vol[2]=2;
0a6d8768 634 gMC->CurrentVolOffID(3,copy);
6edc06da 635 vol[3]=copy;
0a6d8768 636 gMC->CurrentVolOffID(4,copy);
6edc06da 637 vol[4]=copy;
cfce8870 638 gMC->Gdtom(center,hits,1);
6edc06da 639 hits[3] = destep*1e9; //Number in eV
640 AddHit(gAlice->CurrentTrack(), vol, hits);
641 }
642}