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a6a493b8 | 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 | $Log$ | |
17 | Revision March 2001 new geometry for relocated PMD : Viyogi | |
18 | ||
19 | Revision 1.8 2000/06/09 10:31:36 hristov | |
20 | sqrt changed to TMath::Sqrt | |
21 | ||
22 | Revision 1.7 1999/11/03 18:01:40 fca | |
23 | Remove non orthogonal unused matrix | |
24 | ||
25 | Revision 1.6 1999/09/29 09:24:28 fca | |
26 | Introduction of the Copyright and cvs Log | |
27 | ||
28 | */ | |
29 | // | |
30 | /////////////////////////////////////////////////////////////////////////////// | |
31 | // // | |
32 | // Photon Multiplicity Detector Version 1 // | |
33 | // // | |
34 | //Begin_Html | |
35 | /* | |
36 | <img src="picts/AliPMDv3Class.gif"> | |
37 | */ | |
38 | //End_Html | |
39 | // // | |
40 | /////////////////////////////////////////////////////////////////////////////// | |
41 | //// | |
42 | ||
43 | #include "AliPMDv3.h" | |
44 | #include "AliRun.h" | |
45 | #include "AliMagF.h" | |
46 | #include "AliMC.h" | |
47 | #include "AliConst.h" | |
48 | #include "iostream.h" | |
49 | ||
50 | static Int_t kdet, ncell_sm, ncell_hole; | |
51 | static Float_t zdist, zdist1; | |
52 | static Float_t sm_length, sm_thick, cell_radius, cell_wall, cell_depth; | |
53 | static Float_t boundary, th_base, th_air, th_pcb; | |
54 | static Float_t th_lead, th_steel; | |
55 | ||
56 | ClassImp(AliPMDv3) | |
57 | ||
58 | //_____________________________________________________________________________ | |
59 | AliPMDv3::AliPMDv3() | |
60 | { | |
61 | // | |
62 | // Default constructor | |
63 | // | |
64 | fMedSens=0; | |
65 | } | |
66 | ||
67 | //_____________________________________________________________________________ | |
68 | AliPMDv3::AliPMDv3(const char *name, const char *title) | |
69 | : AliPMD(name,title) | |
70 | { | |
71 | // | |
72 | // Standard constructor | |
73 | // | |
74 | fMedSens=0; | |
75 | } | |
76 | ||
77 | //_____________________________________________________________________________ | |
78 | void AliPMDv3::CreateGeometry() | |
79 | { | |
80 | // | |
81 | // Create geometry for Photon Multiplicity Detector Version 3 : | |
82 | // April 2, 2001 | |
83 | // | |
84 | //Begin_Html | |
85 | /* | |
86 | <img src="picts/AliPMDv3.gif"> | |
87 | */ | |
88 | //End_Html | |
89 | //Begin_Html | |
90 | /* | |
91 | <img src="picts/AliPMDv3Tree.gif"> | |
92 | */ | |
93 | //End_Html | |
94 | GetParameters(); | |
95 | CreateSupermodule(); | |
96 | CreatePMD(); | |
97 | } | |
98 | ||
99 | //_____________________________________________________________________________ | |
100 | void AliPMDv3::CreateSupermodule() | |
101 | { | |
102 | // | |
103 | // Creates the geometry of the cells, places them in supermodule which | |
104 | // is a rhombus object. | |
105 | ||
106 | // *** DEFINITION OF THE GEOMETRY OF THE PMD *** | |
107 | // *** HEXAGONAL CELLS WITH 10 MM SQUARE EQUIVALENT | |
108 | // -- Author : S. Chattopadhyay, 02/04/1999. | |
109 | ||
110 | // Basic unit is ECAR, a hexagonal cell made of Ar+CO2, which is placed inside another | |
111 | // hexagonal cell made of Cu (ECCU) with larger radius, compared to ECAR. The difference | |
112 | // in radius gives the dimension of half width of each cell wall. | |
113 | // These cells are placed as 72 x 72 array in a | |
114 | // rhombus shaped supermodule (EHC1). The rhombus shaped modules are designed | |
115 | // to have closed packed structure. | |
116 | // | |
117 | // Each supermodule (ESM1 or ESM2), made of G10 is filled with following components | |
118 | // EAIR --> Air gap between gas hexagonal cells and G10 backing. | |
119 | // EHC1 --> Rhombus shaped parallelopiped containing the hexagonal cells | |
120 | // EAIR --> Air gap between gas hexagonal cells and G10 backing. | |
121 | // | |
122 | // ESM1 is placed in EMM1 along with EMPB (Pb converter) and EMFE (iron support) | |
123 | // EMM1 made of | |
124 | // ESM1 --> Normal supermodule | |
125 | // EMPB --> Pb converter | |
126 | // EMFE --> Fe backing | |
127 | // | |
128 | // ESM2 is placed in EMM2 along with EMPB (Pb converter) and EMFE (iron support) | |
129 | // EMM2 made of | |
130 | // ESM2 --> Special supermodule containing the cut for the hole | |
131 | // EMPB --> Pb converter | |
132 | // EMFE --> Fe backing | |
133 | ||
134 | // | |
135 | // EPMD | |
136 | // | | |
137 | // | | |
138 | // ------------------------------------------------------------------- | |
139 | // | | | | | |
140 | // EHOL EMM1 EMM2 EALM | |
141 | // | | | |
142 | // ---------------------- ------------------------ | |
143 | // | | | | | | | | | |
144 | // ESM1 EMPB EMFE ESM1 ESM2 EMPB EMFE ESM2 | |
145 | // | | | |
146 | // ------------ ------------- | |
147 | // | | | | | | | |
148 | // EAIR EHC1 EAIR EAIR EHC2 EAIR | |
149 | // | | | |
150 | // ECCU ECCU | |
151 | // | | | |
152 | // ECAR ECAR | |
153 | ||
154 | ||
155 | Int_t i, j; | |
156 | Float_t xb, yb, zb; | |
157 | Int_t number; | |
158 | Int_t ihrotm,irotdm; | |
159 | const Float_t root3_2 = TMath::Sqrt(3.) /2.; | |
160 | Int_t *idtmed = fIdtmed->GetArray()-599; | |
161 | ||
162 | AliMatrix(ihrotm, 90., 30., 90., 120., 0., 0.); | |
163 | AliMatrix(irotdm, 90., 180., 90., 270., 180., 0.); | |
164 | ||
165 | zdist = TMath::Abs(zdist1); | |
166 | ||
167 | ||
168 | //Subhasis, dimensional parameters of rhombus (dpara) as given to gsvolu | |
169 | // rhombus to accomodate 72 x 72 hexagons, and with total 1.2cm extension | |
170 | //(1mm tolerance on both side and 5mm thick G10 wall) | |
171 | // | |
172 | ||
173 | // **** CELL SIZE 20mm^2 EQUIVALENT | |
174 | ||
175 | // Inner hexagon filled with gas (Ar+CO2) | |
176 | ||
177 | Float_t hexd2[10] = {0.,360.,6,2,-0.25,0.,0.23,0.25,0.,0.23}; | |
178 | ||
179 | hexd2[4]= - cell_depth/2.; | |
180 | hexd2[7]= cell_depth/2.; | |
181 | hexd2[6]= cell_radius - cell_wall; | |
182 | hexd2[9]= cell_radius - cell_wall; | |
183 | ||
184 | gMC->Gsvolu("ECAR", "PGON", idtmed[604], hexd2,10); | |
185 | gMC->Gsatt("ECAR", "SEEN", 0); | |
186 | ||
187 | // Outer hexagon made of Copper | |
188 | ||
189 | Float_t hexd1[10] = {0.,360.,6,2,-0.25,0.,0.25,0.25,0.,0.25}; | |
190 | //total wall thickness=0.2*2 | |
191 | ||
192 | hexd1[4]= - cell_depth/2.; | |
193 | hexd1[7]= cell_depth/2.; | |
194 | hexd1[6]= cell_radius; | |
195 | hexd1[9]= cell_radius; | |
196 | ||
197 | gMC->Gsvolu("ECCU", "PGON", idtmed[614], hexd1,10); | |
198 | gMC->Gsatt("ECCU", "SEEN", 1); | |
199 | ||
200 | ||
201 | // Rhombus shaped supermodules (defined by PARA) | |
202 | ||
203 | // volume for SUPERMODULE | |
204 | ||
205 | Float_t dpara_sm[6] = {12.5,12.5,0.8,30.,0.,0.}; | |
206 | dpara_sm[0]=(ncell_sm+0.25)*hexd1[6] ; | |
207 | dpara_sm[1] = dpara_sm[0] *root3_2; | |
208 | dpara_sm[2] = sm_thick/2.; | |
209 | ||
210 | // G10 inner part of supermodule, these will be 9 in all, one being special | |
211 | ||
212 | Float_t dpara_g10[6] = {12.5,12.5,8.,30.,0.,0.}; | |
213 | dpara_g10[0]= dpara_sm[0]; | |
214 | dpara_g10[1]= dpara_sm[1]; | |
215 | dpara_g10[2]= dpara_sm[2]; | |
216 | ||
217 | // | |
218 | gMC->Gsvolu("ESM1","PARA", idtmed[607], dpara_g10, 6); | |
219 | gMC->Gsatt("ESM1", "SEEN", 0); | |
220 | // | |
221 | gMC->Gsvolu("ESM2","PARA", idtmed[607], dpara_g10, 6); | |
222 | gMC->Gsatt("ESM2", "SEEN", 0); | |
223 | ||
224 | // Air residing between the PCB and the base | |
225 | ||
226 | Float_t dpara_air[6] = {12.5,12.5,8.,30.,0.,0.}; | |
227 | dpara_air[0]= dpara_sm[0]; | |
228 | dpara_air[1]= dpara_sm[1]; | |
229 | dpara_air[2]= th_air/2.; | |
230 | ||
231 | gMC->Gsvolu("EAIR","PARA", idtmed[698], dpara_air, 6); | |
232 | gMC->Gsatt("EAIR", "SEEN", 0); | |
233 | ||
234 | // volume for honeycomb chamber (EHC1 and EHC2) | |
235 | ||
236 | Float_t dpara[6] = {12.5,12.5,0.4,30.,0.,0.}; | |
237 | dpara[0] = dpara_sm[0]; | |
238 | dpara[1] = dpara_sm[1]; | |
239 | dpara[2] = cell_depth/2.; | |
240 | ||
241 | gMC->Gsvolu("EHC1","PARA", idtmed[698], dpara, 6); | |
242 | gMC->Gsatt("EHC1", "SEEN", 1); | |
243 | ||
244 | gMC->Gsvolu("EHC2","PARA", idtmed[698], dpara, 6); | |
245 | gMC->Gsatt("EHC2", "SEEN", 1); | |
246 | ||
247 | // --- place inner hex inside outer hex | |
248 | ||
249 | gMC->Gsposp("ECAR", 1, "ECCU", 0., 0., 0., 0, "ONLY", hexd2, 10); | |
250 | ||
251 | // Place outer hex ECCU cells inside EHC1 (72 X 72) | |
252 | ||
253 | Int_t xrow=1; | |
254 | ||
255 | yb = -dpara[1] + (1./root3_2)*hexd1[6]; | |
256 | zb = 0.; | |
257 | ||
258 | for (j = 1; j <= ncell_sm; ++j) { | |
259 | xb =-(dpara[0] + dpara[1]*0.577) + 2*hexd1[6]; //0.577=tan(30deg) | |
260 | if(xrow >= 2){ | |
261 | xb = xb+(xrow-1)*hexd1[6]; | |
262 | } | |
263 | for (i = 1; i <= ncell_sm; ++i) { | |
264 | number = i+(j-1)*ncell_sm; | |
265 | gMC->Gsposp("ECCU", number, "EHC1", xb,yb,zb, ihrotm, "ONLY", hexd1,10); | |
266 | xb += (hexd1[6]*2.); | |
267 | } | |
268 | xrow = xrow+1; | |
269 | yb += (hexd1[6]*TMath::Sqrt(3.)); | |
270 | } | |
271 | ||
272 | ||
273 | // Place outer hex ECCU inside EHC2 | |
274 | // skip cells which go into the hole in top left corner. | |
275 | ||
276 | xrow=1; | |
277 | yb = -dpara[1] + (1./root3_2)*hexd1[6]; | |
278 | zb = 0.; | |
279 | for (j = 1; j <= ncell_sm; ++j) { | |
280 | xb =-(dpara[0] + dpara[1]*0.577) + 2*hexd1[6]; | |
281 | if(xrow >= 2){ | |
282 | xb = xb+(xrow-1)*hexd1[6]; | |
283 | } | |
284 | for (i = 1; i <= ncell_sm; ++i) { | |
285 | number = i+(j-1)*ncell_sm; | |
286 | if(i > ncell_hole || j <= (ncell_sm - ncell_hole)) | |
287 | { | |
288 | gMC->Gsposp("ECCU", number, "EHC2", xb,yb,zb, ihrotm, "ONLY", hexd1,10); | |
289 | } | |
290 | xb += (hexd1[6]*2.); | |
291 | } | |
292 | xrow = xrow+1; | |
293 | yb += (hexd1[6]*TMath::Sqrt(3.)); | |
294 | } | |
295 | ||
296 | // Place EHC1 and EAIR into ESM1; EHC2 and EAIR into ESM2 | |
297 | ||
298 | Float_t z_air1,z_air2,z_gas; | |
299 | ||
300 | z_air1= -dpara_g10[2] + th_base + dpara_air[2]; | |
301 | gMC->Gspos("EAIR", 1, "ESM1", 0., 0., z_air1, 0, "ONLY"); | |
302 | z_gas=z_air1+dpara_air[2]+ th_pcb + dpara[2]; | |
303 | gMC->Gspos("EHC1", 1, "ESM1", 0., 0., z_gas, 0, "ONLY"); | |
304 | z_air2=z_gas+dpara[2]+ th_pcb + dpara_air[2]; | |
305 | gMC->Gspos("EAIR", 2, "ESM1", 0., 0., z_air2, 0, "ONLY"); | |
306 | ||
307 | z_air1= -dpara_g10[2] + th_base + dpara_air[2]; | |
308 | gMC->Gspos("EAIR", 1, "ESM2", 0., 0., z_air1, 0, "ONLY"); | |
309 | z_gas=z_air1+dpara_air[2]+ th_pcb + dpara[2]; | |
310 | gMC->Gspos("EHC2", 1, "ESM2", 0., 0., z_gas, 0, "ONLY"); | |
311 | z_air2=z_gas+dpara[2]+ th_pcb + dpara_air[2]; | |
312 | gMC->Gspos("EAIR", 2, "ESM2", 0., 0., z_air2, 0, "ONLY"); | |
313 | ||
314 | } | |
315 | ||
316 | //_____________________________________________________________________________ | |
317 | ||
318 | void AliPMDv3::CreatePMD() | |
319 | { | |
320 | // | |
321 | // Create final detector from supermodules | |
322 | // | |
323 | // -- Author : Y.P. VIYOGI, 07/05/1996. | |
324 | // -- Modified: P.V.K.S.Baba(JU), 15-12-97. | |
325 | // -- Modified: For New Geometry YPV, March 2001. | |
326 | ||
327 | ||
328 | // Gaspmd, the dimension of TUBE mother volume of PMD, | |
329 | ||
330 | Float_t gaspmd[3] = { 0.,150.,10.}; | |
331 | ||
332 | const Float_t root3_2 = TMath::Sqrt(3.)/2.; | |
333 | const Float_t pi = 3.14159; | |
334 | Int_t i,j; | |
335 | ||
336 | Float_t xp, yp, zp; | |
337 | ||
338 | Int_t num_mod; | |
339 | Int_t jhrot12,jhrot13, irotdm; | |
340 | ||
341 | Int_t *idtmed = fIdtmed->GetArray()-599; | |
342 | ||
343 | // VOLUMES Names : begining with D for all PMD volumes, | |
344 | // The names of SIZE variables begin with S and have more meaningful | |
345 | // characters as shown below. | |
346 | ||
347 | // VOLUME SIZE MEDIUM : REMARKS | |
348 | // ------ ----- ------ : --------------------------- | |
349 | ||
350 | // EPMD GASPMD AIR : INSIDE PMD and its SIZE | |
351 | ||
352 | // *** Define the EPMD Volume and fill with air *** | |
353 | ||
354 | gMC->Gsvolu("EPMD", "TUBE", idtmed[698], gaspmd, 3); | |
355 | gMC->Gsatt("EPMD", "SEEN", 0); | |
356 | ||
357 | AliMatrix(irotdm, 90., 0., 90., 90., 180., 0.); | |
358 | ||
359 | AliMatrix(jhrot12, 90., 120., 90., 210., 0., 0.); | |
360 | AliMatrix(jhrot13, 90., 240., 90., 330., 0., 0.); | |
361 | ||
362 | // dpara_emm1 array contains parameters of the imaginary volume EMM1, | |
363 | // this is just a little more than the side of a supermodule. | |
364 | ||
365 | Float_t dm_thick = 2. * sm_thick + th_lead + th_steel; | |
366 | ||
367 | Float_t dpara_emm1[6] = {12.5,12.5,0.8,30.,0.,0.}; | |
368 | dpara_emm1[0] = sm_length/2.; | |
369 | dpara_emm1[1] = dpara_emm1[0] *root3_2; | |
370 | dpara_emm1[2] = dm_thick/2.; | |
371 | ||
372 | // EMM1 : normal volume as in old cases | |
373 | gMC->Gsvolu("EMM1","PARA", idtmed[698], dpara_emm1, 6); | |
374 | gMC->Gsatt("EMM1", "SEEN", 1); | |
375 | ||
376 | // EMM2 : special volume containing special supermodule | |
377 | gMC->Gsvolu("EMM2","PARA", idtmed[698], dpara_emm1, 6); | |
378 | gMC->Gsatt("EMM2", "SEEN", 1); | |
379 | ||
380 | // | |
381 | // --- DEFINE MODules, iron, and lead voLUMES | |
382 | ||
383 | //place ESM1 into EMM1 and ESM2 into EMM2 along with EMPB and EMFE | |
384 | ||
385 | Float_t dx = sm_length; | |
386 | Float_t dy = dx * root3_2; | |
387 | ||
388 | Float_t xsup[9] = {-dx/2., dx/2., 3.*dx/2., | |
389 | -dx, 0., dx, | |
390 | -3.*dx/2., -dx/2., dx/2.}; | |
391 | ||
392 | Float_t ysup[9] = {dy, dy, dy, | |
393 | 0., 0., 0., | |
394 | -dy, -dy, -dy}; | |
395 | ||
396 | // | |
397 | ||
398 | // volume for SUPERMODULE | |
399 | ||
400 | // Pb Convertor | |
401 | Float_t dpara_pb[6] = {12.5,12.5,8.,30.,0.,0.}; | |
402 | dpara_pb[0] = sm_length/2.; | |
403 | dpara_pb[1] = dpara_pb[0] * root3_2; | |
404 | dpara_pb[2] = th_lead/2.; | |
405 | ||
406 | gMC->Gsvolu("EMPB","PARA", idtmed[600], dpara_pb, 6); | |
407 | gMC->Gsatt ("EMPB", "SEEN", 0); | |
408 | ||
409 | // Fe Support | |
410 | Float_t dpara_fe[6] = {12.5,12.5,8.,30.,0.,0.}; | |
411 | dpara_fe[0] = dpara_pb[0]; | |
412 | dpara_fe[1] = dpara_pb[1]; | |
413 | dpara_fe[2] = th_steel/2.; | |
414 | ||
415 | gMC->Gsvolu("EMFE","PARA", idtmed[618], dpara_fe, 6); | |
416 | gMC->Gsatt ("EMFE", "SEEN", 0); | |
417 | ||
418 | // position supermodule ESM1 inside EMM1 | |
419 | ||
420 | Float_t z_ps,z_pb,z_fe,z_cv; | |
421 | ||
422 | z_ps = - dpara_emm1[2] + sm_thick/2.; | |
423 | gMC->Gspos("ESM1", 2, "EMM1", 0., 0., z_ps, irotdm, "ONLY"); | |
424 | z_pb=z_ps+sm_thick/2.+dpara_pb[2]; | |
425 | gMC->Gspos("EMPB", 1, "EMM1", 0., 0., z_pb, 0, "ONLY"); | |
426 | z_fe=z_pb+dpara_pb[2]+dpara_fe[2]; | |
427 | gMC->Gspos("EMFE", 1, "EMM1", 0., 0., z_fe, 0, "ONLY"); | |
428 | z_cv=z_fe+dpara_fe[2]+sm_thick/2.; | |
429 | gMC->Gspos("ESM1", 1, "EMM1", 0., 0., z_cv, 0, "ONLY"); | |
430 | ||
431 | // position supermodule ESM2 inside EMM2 | |
432 | ||
433 | z_ps = - dpara_emm1[2] + sm_thick/2.; | |
434 | gMC->Gspos("ESM2", 2, "EMM2", 0., 0., z_ps, irotdm, "ONLY"); | |
435 | z_pb = z_ps + sm_thick/2.+dpara_pb[2]; | |
436 | gMC->Gspos("EMPB", 1, "EMM2", 0., 0., z_pb, 0, "ONLY"); | |
437 | z_fe = z_pb + dpara_pb[2]+dpara_fe[2]; | |
438 | gMC->Gspos("EMFE", 1, "EMM2", 0., 0., z_fe, 0, "ONLY"); | |
439 | z_cv = z_fe + dpara_fe[2]+sm_thick/2.; | |
440 | gMC->Gspos("ESM2", 1, "EMM2", 0., 0., z_cv, 0, "ONLY"); | |
441 | // | |
442 | ||
443 | // EHOL is a tube structure made of air | |
444 | ||
445 | Float_t d_hole[3]; | |
446 | d_hole[0] = 0.; | |
447 | d_hole[1] = ncell_hole * cell_radius *2. * root3_2 + boundary; | |
448 | d_hole[2] = dm_thick/2.; | |
449 | ||
450 | gMC->Gsvolu("EHOL", "TUBE", idtmed[698], d_hole, 3); | |
451 | gMC->Gsatt("EHOL", "SEEN", 1); | |
452 | ||
453 | //Al-rod as boundary of the supermodules | |
454 | ||
455 | Float_t Al_rod[3] ; | |
456 | Al_rod[0] = sm_length * 3/2.; | |
457 | Al_rod[1] = boundary; | |
458 | Al_rod[2] = dm_thick/2.; | |
459 | ||
460 | gMC->Gsvolu("EALM","BOX ", idtmed[698], Al_rod, 3); | |
461 | gMC->Gsatt ("EALM", "SEEN", 1); | |
462 | Float_t xalm[3]; | |
463 | xalm[0]=Al_rod[0]; | |
464 | xalm[1]=-xalm[0]/2.; | |
465 | xalm[2]=xalm[1]; | |
466 | ||
467 | Float_t yalm[3]; | |
468 | yalm[0]=0.; | |
469 | yalm[1]=xalm[0]*root3_2; | |
470 | yalm[2]=-yalm[1]; | |
471 | ||
472 | // delx = full side of the supermodule | |
473 | Float_t delx=sm_length * 3.; | |
474 | Float_t x1= delx*root3_2 /2.; | |
475 | Float_t x4=delx/4.; | |
476 | ||
477 | // xpos and ypos are the x & y coordinates of the centres of EMM1 volumes | |
478 | ||
479 | Float_t xoff = boundary * TMath::Tan(pi/6.); | |
480 | Float_t xmod[3]={x4 + xoff , x4 + xoff, -2.*x4-boundary/root3_2}; | |
481 | Float_t ymod[3] = {-x1 - boundary, x1 + boundary, 0.}; | |
482 | Float_t xpos[9], ypos[9]; | |
483 | Float_t theta[3] = {0., 2.*pi/3., 4.*pi/3.}; | |
484 | Int_t irotate[3] = {0, jhrot12, jhrot13}; | |
485 | ||
486 | for (j=0; j<3; ++j) | |
487 | { | |
488 | gMC->Gsposp("EALM", j+1, "EPMD", xalm[j],yalm[j], 0., irotate[j], "ONLY", Al_rod, 3); | |
489 | for (i=0; i<9; ++i) | |
490 | { | |
491 | xpos[i]=xmod[j] + xsup[i]*TMath::Cos(theta[j]) - ysup[i]*TMath::Sin(theta[j]); | |
492 | ypos[i]=ymod[j] + xsup[i]*TMath::Sin(theta[j]) + ysup[i]*TMath::Cos(theta[j]); | |
493 | ||
494 | printf("%f %f \n", xpos[i], ypos[i]); | |
495 | ||
496 | num_mod = i + 1 + j*9; | |
497 | ||
498 | printf("\nNum_mod %d\n",num_mod); | |
499 | ||
500 | if(i==0){ | |
501 | gMC->Gsposp("EMM2", num_mod, "EPMD", xpos[i],ypos[i], 0., irotate[j], "ONLY", dpara_emm1, 6); | |
502 | } | |
503 | else { | |
504 | gMC->Gsposp("EMM1", num_mod, "EPMD", xpos[i],ypos[i], 0., irotate[j], "ONLY", dpara_emm1, 6); | |
505 | } | |
506 | } | |
507 | } | |
508 | ||
509 | ||
510 | // place EHOL in the centre of EPMD | |
511 | gMC->Gspos("EHOL", 1, "EPMD", 0.,0.,0., 0, "ONLY"); | |
512 | ||
513 | // --- Place the EPMD in ALICE | |
514 | xp = 0.; | |
515 | yp = 0.; | |
516 | zp = zdist1; | |
517 | ||
518 | gMC->Gspos("EPMD", 1, "ALIC", xp,yp,zp, 0, "ONLY"); | |
519 | ||
520 | } | |
521 | ||
522 | ||
523 | //_____________________________________________________________________________ | |
524 | void AliPMDv3::DrawModule() | |
525 | { | |
526 | // | |
527 | // Draw a shaded view of the Photon Multiplicity Detector | |
528 | // | |
529 | ||
530 | gMC->Gsatt("*", "seen", -1); | |
531 | gMC->Gsatt("alic", "seen", 0); | |
532 | // | |
533 | // Set the visibility of the components | |
534 | // | |
535 | gMC->Gsatt("ECAR","seen",0); | |
536 | gMC->Gsatt("ECCU","seen",1); | |
537 | gMC->Gsatt("EHC1","seen",1); | |
538 | gMC->Gsatt("EHC1","seen",1); | |
539 | gMC->Gsatt("EHC2","seen",1); | |
540 | gMC->Gsatt("EMM1","seen",1); | |
541 | gMC->Gsatt("EHOL","seen",1); | |
542 | gMC->Gsatt("EPMD","seen",0); | |
543 | // | |
544 | gMC->Gdopt("hide", "on"); | |
545 | gMC->Gdopt("shad", "on"); | |
546 | gMC->Gsatt("*", "fill", 7); | |
547 | gMC->SetClipBox("."); | |
548 | gMC->SetClipBox("*", 0, 3000, -3000, 3000, -6000, 6000); | |
549 | gMC->DefaultRange(); | |
550 | gMC->Gdraw("alic", 40, 30, 0, 22, 20.5, .02, .02); | |
551 | gMC->Gdhead(1111, "Photon Multiplicity Detector Version 1"); | |
552 | ||
553 | //gMC->Gdman(17, 5, "MAN"); | |
554 | gMC->Gdopt("hide", "off"); | |
555 | } | |
556 | ||
557 | //_____________________________________________________________________________ | |
558 | void AliPMDv3::CreateMaterials() | |
559 | { | |
560 | // | |
561 | // Create materials for the PMD | |
562 | // | |
563 | // ORIGIN : Y. P. VIYOGI | |
564 | // | |
565 | ||
566 | // --- The Argon- CO2 mixture --- | |
567 | Float_t ag[2] = { 39.95 }; | |
568 | Float_t zg[2] = { 18. }; | |
569 | Float_t wg[2] = { .8,.2 }; | |
570 | Float_t dar = .001782; // --- Ar density in g/cm3 --- | |
571 | // --- CO2 --- | |
572 | Float_t ac[2] = { 12.,16. }; | |
573 | Float_t zc[2] = { 6.,8. }; | |
574 | Float_t wc[2] = { 1.,2. }; | |
575 | Float_t dc = .001977; | |
576 | Float_t dco = .002; // --- CO2 density in g/cm3 --- | |
577 | ||
578 | Float_t absl, radl, a, d, z; | |
579 | Float_t dg; | |
580 | Float_t x0ar; | |
581 | //Float_t x0xe=2.4; | |
582 | //Float_t dxe=0.005858; | |
583 | Float_t buf[1]; | |
584 | Int_t nbuf; | |
585 | Float_t asteel[4] = { 55.847,51.9961,58.6934,28.0855 }; | |
586 | Float_t zsteel[4] = { 26.,24.,28.,14. }; | |
587 | Float_t wsteel[4] = { .715,.18,.1,.005 }; | |
588 | ||
589 | Int_t *idtmed = fIdtmed->GetArray()-599; | |
590 | Int_t isxfld = gAlice->Field()->Integ(); | |
591 | Float_t sxmgmx = gAlice->Field()->Max(); | |
592 | ||
593 | // --- Define the various materials for GEANT --- | |
594 | AliMaterial(1, "Pb $", 207.19, 82., 11.35, .56, 18.5); | |
595 | x0ar = 19.55 / dar; | |
596 | AliMaterial(2, "Argon$", 39.95, 18., dar, x0ar, 6.5e4); | |
597 | AliMixture(3, "CO2 $", ac, zc, dc, -2, wc); | |
598 | AliMaterial(4, "Al $", 26.98, 13., 2.7, 8.9, 18.5); | |
599 | AliMaterial(6, "Fe $", 55.85, 26., 7.87, 1.76, 18.5); | |
600 | AliMaterial(7, "W $", 183.85, 74., 19.3, .35, 10.3); | |
601 | AliMaterial(8, "G10 $", 20., 10., 1.7, 19.4, 999.); | |
602 | AliMaterial(9, "SILIC$", 28.09, 14., 2.33, 9.36, 45.); | |
603 | AliMaterial(10, "Be $", 9.01, 4., 1.848, 35.3, 36.7); | |
604 | AliMaterial(15, "Cu $", 63.54, 29., 8.96, 1.43, 15.); | |
605 | AliMaterial(16, "C $", 12.01, 6., 2.265, 18.8, 49.9); | |
606 | AliMaterial(17, "POLYCARBONATE $", 20., 10., 1.2, 34.6, 999.); | |
607 | AliMixture(19, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel); | |
608 | // AliMaterial(31, "Xenon$", 131.3, 54., dxe, x0xe, 6.5e4); | |
609 | ||
610 | AliMaterial(96, "MYLAR$", 8.73, 4.55, 1.39, 28.7, 62.); | |
611 | AliMaterial(97, "CONCR$", 20., 10., 2.5, 10.7, 40.); | |
612 | AliMaterial(98, "Vacum$", 1e-9, 1e-9, 1e-9, 1e16, 1e16); | |
613 | AliMaterial(99, "Air $", 14.61, 7.3, .0012, 30420., 67500.); | |
614 | ||
615 | // define gas-mixtures | |
616 | ||
617 | char namate[21]; | |
618 | gMC->Gfmate((*fIdmate)[3], namate, a, z, d, radl, absl, buf, nbuf); | |
619 | ag[1] = a; | |
620 | zg[1] = z; | |
621 | dg = (dar * 4 + dco) / 5; | |
622 | AliMixture(5, "ArCO2$", ag, zg, dg, 2, wg); | |
623 | ||
624 | // Define tracking media | |
625 | AliMedium(1, "Pb conv.$", 1, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1); | |
626 | AliMedium(7, "W conv.$", 7, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1); | |
627 | AliMedium(8, "G10plate$", 8, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1); | |
628 | AliMedium(4, "Al $", 4, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1); | |
629 | AliMedium(6, "Fe $", 6, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1); | |
630 | AliMedium(5, "ArCO2 $", 5, 1, 0, isxfld, sxmgmx, .1, .1, .1, .1); | |
631 | AliMedium(9, "SILICON $", 9, 1, 0, isxfld, sxmgmx, .1, .1, .1, .1); | |
632 | AliMedium(10, "Be $", 10, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1); | |
633 | AliMedium(98, "Vacuum $", 98, 0, 0, isxfld, sxmgmx, 1., .1, .1, 10); | |
634 | AliMedium(99, "Air gaps$", 99, 0, 0, isxfld, sxmgmx, 1., .1, .1, .1); | |
635 | AliMedium(15, "Cu $", 15, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1); | |
636 | AliMedium(16, "C $", 16, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1); | |
637 | AliMedium(17, "PLOYCARB$", 17, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1); | |
638 | AliMedium(19, " S steel$", 19, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1); | |
639 | // AliMedium(31, "Xenon $", 31, 1, 0, isxfld, sxmgmx, .1, .1, .1, .1); | |
640 | ||
641 | // --- Generate explicitly delta rays in the iron, aluminium and lead --- | |
642 | gMC->Gstpar(idtmed[600], "LOSS", 3.); | |
643 | gMC->Gstpar(idtmed[600], "DRAY", 1.); | |
644 | ||
645 | gMC->Gstpar(idtmed[603], "LOSS", 3.); | |
646 | gMC->Gstpar(idtmed[603], "DRAY", 1.); | |
647 | ||
648 | gMC->Gstpar(idtmed[604], "LOSS", 3.); | |
649 | gMC->Gstpar(idtmed[604], "DRAY", 1.); | |
650 | ||
651 | gMC->Gstpar(idtmed[605], "LOSS", 3.); | |
652 | gMC->Gstpar(idtmed[605], "DRAY", 1.); | |
653 | ||
654 | gMC->Gstpar(idtmed[606], "LOSS", 3.); | |
655 | gMC->Gstpar(idtmed[606], "DRAY", 1.); | |
656 | ||
657 | gMC->Gstpar(idtmed[607], "LOSS", 3.); | |
658 | gMC->Gstpar(idtmed[607], "DRAY", 1.); | |
659 | ||
660 | // --- Energy cut-offs in the Pb and Al to gain time in tracking --- | |
661 | // --- without affecting the hit patterns --- | |
662 | gMC->Gstpar(idtmed[600], "CUTGAM", 1e-4); | |
663 | gMC->Gstpar(idtmed[600], "CUTELE", 1e-4); | |
664 | gMC->Gstpar(idtmed[600], "CUTNEU", 1e-4); | |
665 | gMC->Gstpar(idtmed[600], "CUTHAD", 1e-4); | |
666 | gMC->Gstpar(idtmed[605], "CUTGAM", 1e-4); | |
667 | gMC->Gstpar(idtmed[605], "CUTELE", 1e-4); | |
668 | gMC->Gstpar(idtmed[605], "CUTNEU", 1e-4); | |
669 | gMC->Gstpar(idtmed[605], "CUTHAD", 1e-4); | |
670 | gMC->Gstpar(idtmed[606], "CUTGAM", 1e-4); | |
671 | gMC->Gstpar(idtmed[606], "CUTELE", 1e-4); | |
672 | gMC->Gstpar(idtmed[606], "CUTNEU", 1e-4); | |
673 | gMC->Gstpar(idtmed[606], "CUTHAD", 1e-4); | |
674 | gMC->Gstpar(idtmed[603], "CUTGAM", 1e-4); | |
675 | gMC->Gstpar(idtmed[603], "CUTELE", 1e-4); | |
676 | gMC->Gstpar(idtmed[603], "CUTNEU", 1e-4); | |
677 | gMC->Gstpar(idtmed[603], "CUTHAD", 1e-4); | |
678 | gMC->Gstpar(idtmed[609], "CUTGAM", 1e-4); | |
679 | gMC->Gstpar(idtmed[609], "CUTELE", 1e-4); | |
680 | gMC->Gstpar(idtmed[609], "CUTNEU", 1e-4); | |
681 | gMC->Gstpar(idtmed[609], "CUTHAD", 1e-4); | |
682 | ||
683 | // --- Prevent particles stopping in the gas due to energy cut-off --- | |
684 | gMC->Gstpar(idtmed[604], "CUTGAM", 1e-5); | |
685 | gMC->Gstpar(idtmed[604], "CUTELE", 1e-5); | |
686 | gMC->Gstpar(idtmed[604], "CUTNEU", 1e-5); | |
687 | gMC->Gstpar(idtmed[604], "CUTHAD", 1e-5); | |
688 | gMC->Gstpar(idtmed[604], "CUTMUO", 1e-5); | |
689 | } | |
690 | ||
691 | //_____________________________________________________________________________ | |
692 | void AliPMDv3::Init() | |
693 | { | |
694 | // | |
695 | // Initialises PMD detector after it has been built | |
696 | // | |
697 | Int_t i; | |
698 | kdet=1; | |
699 | // | |
700 | printf("\n"); | |
701 | for(i=0;i<35;i++) printf("*"); | |
702 | printf(" PMD_INIT "); | |
703 | for(i=0;i<35;i++) printf("*"); | |
704 | printf("\n"); | |
705 | printf(" PMD simulation package (v3) initialised\n"); | |
706 | printf(" parameters of pmd\n"); | |
707 | printf("%10.2f %10.2f %10.2f %10.2f\n", cell_radius,cell_wall,cell_depth,zdist1 ); | |
708 | ||
709 | for(i=0;i<80;i++) printf("*"); | |
710 | printf("\n"); | |
711 | ||
712 | Int_t *idtmed = fIdtmed->GetArray()-599; | |
713 | fMedSens=idtmed[605-1]; | |
714 | } | |
715 | ||
716 | //_____________________________________________________________________________ | |
717 | void AliPMDv3::StepManager() | |
718 | { | |
719 | // | |
720 | // Called at each step in the PMD | |
721 | // | |
722 | Int_t copy; | |
723 | Float_t hits[4], destep; | |
724 | Float_t center[3] = {0,0,0}; | |
725 | Int_t vol[5]; | |
726 | //char *namep; | |
727 | ||
728 | if(gMC->GetMedium() == fMedSens && (destep = gMC->Edep())) { | |
729 | ||
730 | gMC->CurrentVolID(copy); | |
731 | ||
732 | //namep=gMC->CurrentVolName(); | |
733 | //printf("Current vol is %s \n",namep); | |
734 | ||
735 | vol[0]=copy; | |
736 | gMC->CurrentVolOffID(1,copy); | |
737 | ||
738 | //namep=gMC->CurrentVolOffName(1); | |
739 | //printf("Current vol 11 is %s \n",namep); | |
740 | ||
741 | vol[1]=copy; | |
742 | gMC->CurrentVolOffID(2,copy); | |
743 | ||
744 | //namep=gMC->CurrentVolOffName(2); | |
745 | //printf("Current vol 22 is %s \n",namep); | |
746 | ||
747 | vol[2]=copy; | |
748 | ||
749 | // if(strncmp(namep,"EHC1",4))vol[2]=1; | |
750 | ||
751 | gMC->CurrentVolOffID(3,copy); | |
752 | ||
753 | //namep=gMC->CurrentVolOffName(3); | |
754 | //printf("Current vol 33 is %s \n",namep); | |
755 | ||
756 | vol[3]=copy; | |
757 | gMC->CurrentVolOffID(4,copy); | |
758 | ||
759 | //namep=gMC->CurrentVolOffName(4); | |
760 | //printf("Current vol 44 is %s \n",namep); | |
761 | ||
762 | vol[4]=copy; | |
763 | //printf("volume number %d,%d,%d,%d,%d,%f \n",vol[0],vol[1],vol[2],vol[3],vol[4],destep*1000000); | |
764 | ||
765 | gMC->Gdtom(center,hits,1); | |
766 | hits[3] = destep*1e9; //Number in eV | |
767 | AddHit(gAlice->CurrentTrack(), vol, hits); | |
768 | } | |
769 | } | |
770 | ||
771 | ||
772 | //------------------------------------------------------------------------ | |
773 | // Get parameters | |
774 | ||
775 | void AliPMDv3::GetParameters() | |
776 | { | |
777 | Int_t ncell_um, num_um; | |
778 | ncell_um=24; | |
779 | num_um=3; | |
780 | ncell_hole=12; | |
781 | cell_radius=0.25; | |
782 | cell_wall=0.02; | |
783 | cell_depth=0.25 * 2.; | |
784 | // | |
785 | boundary=0.7; | |
786 | ncell_sm=ncell_um * num_um; //no. of cells in a row in one supermodule | |
787 | sm_length= ((ncell_sm + 0.25 ) * cell_radius) * 2.; | |
788 | // | |
789 | th_base=0.3; | |
790 | th_air=0.1; | |
791 | th_pcb=0.16; | |
792 | // | |
793 | sm_thick = th_base + th_air + th_pcb + cell_depth + th_pcb + th_air + th_pcb; | |
794 | // | |
795 | th_lead=1.5; | |
796 | th_steel=0.5; | |
797 | // | |
798 | zdist1 = -370.; | |
799 | } | |
800 | ||
801 | ||
802 | ||
803 | ||
804 | ||
805 | ||
806 | ||
807 | ||
808 | ||
809 | ||
810 | ||
811 | ||
812 |