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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 | ||
36 | static Float_t smod2[3], smod3[3], smod4[3]; | |
37 | static Int_t maxbox, kdet; | |
38 | static Float_t thgas,thmin,thmax,zdist,zdist1,thlow, | |
39 | thhigh,edge; | |
40 | static Int_t numqu; | |
41 | static Float_t xbox[40][40], ybox[40][40]; | |
42 | static Int_t pindex[40][40]; | |
43 | ||
44 | ClassImp(AliPMDv0) | |
45 | //_____________________________________________________________________________ | |
46 | AliPMDv0::AliPMDv0() : AliPMD() | |
47 | { | |
48 | // | |
49 | // Default constructor | |
50 | // | |
51 | fMedSens=0; | |
52 | } | |
53 | ||
54 | //_____________________________________________________________________________ | |
55 | AliPMDv0::AliPMDv0(const char *name, const char *title) | |
56 | : AliPMD(name,title) | |
57 | { | |
58 | // | |
59 | // Standard constructor | |
60 | // | |
61 | fMedSens=0; | |
62 | } | |
63 | ||
64 | //_____________________________________________________________________________ | |
65 | void 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 | //_____________________________________________________________________________ | |
146 | void 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 | //_____________________________________________________________________________ | |
209 | void 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 | //_____________________________________________________________________________ | |
229 | void 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 | //_____________________________________________________________________________ | |
331 | void 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 | //_____________________________________________________________________________ | |
450 | void 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 | //_____________________________________________________________________________ | |
483 | void 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 | //_____________________________________________________________________________ | |
606 | void 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 | //_____________________________________________________________________________ | |
631 | void 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 | } |