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 | |
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20 | /////////////////////////////////////////////////////////////////////////////// |
21 | // // |
22 | // Photon Multiplicity Detector Version 1 // |
23 | // // |
24 | //Begin_Html |
25 | /* |
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26 | <img src="picts/AliPMDv0Class.gif"> |
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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 | /* |
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216 | <img src="picts/AliPMDv0.gif"> |
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217 | */ |
218 | //End_Html |
219 | //Begin_Html |
220 | /* |
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221 | <img src="picts/AliPMDv0Tree.gif"> |
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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 | |
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247 | Int_t *idtmed = fIdtmed->GetArray()-599; |
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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); |
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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); |
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298 | } |
299 | if (pindex[j][i] == 2) { |
300 | ++inum3; |
cfce8870 |
301 | gMC->Gsposp("DM12", inum3, "DIQU", xd, yd, zd, 0, "ONLY", smod3, 3); |
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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); |
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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"); |
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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 | |
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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 | |
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374 | Int_t *idtmed = fIdtmed->GetArray()-599; |
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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 | |
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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 | } |