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9e1a0ddb | 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 | **************************************************************************/ | |
9e1a0ddb | 15 | |
803d1ab0 | 16 | /* $Id$ */ |
9e1a0ddb | 17 | |
9e1a0ddb | 18 | /////////////////////////////////////////////////////////////////////////////// |
19 | // // | |
20 | // Photon Multiplicity Detector Version 1 // | |
21 | // // | |
22 | //Begin_Html | |
23 | /* | |
24 | <img src="picts/AliPMDv3Class.gif"> | |
25 | */ | |
26 | //End_Html | |
27 | // // | |
28 | /////////////////////////////////////////////////////////////////////////////// | |
29 | //// | |
30 | ||
31 | #include "AliPMDv3.h" | |
32 | #include "AliRun.h" | |
33 | #include "AliMagF.h" | |
34 | #include "AliMC.h" | |
35 | #include "AliConst.h" | |
36 | #include "iostream.h" | |
37 | ||
38 | static Int_t kdet, ncell_sm, ncell_hole; | |
39 | static Float_t zdist, zdist1; | |
40 | static Float_t sm_length, sm_thick, cell_radius, cell_wall, cell_depth; | |
41 | static Float_t boundary, th_base, th_air, th_pcb; | |
42 | static Float_t th_lead, th_steel; | |
43 | ||
44 | ClassImp(AliPMDv3) | |
45 | ||
46 | //_____________________________________________________________________________ | |
47 | AliPMDv3::AliPMDv3() | |
48 | { | |
49 | // | |
50 | // Default constructor | |
51 | // | |
52 | fMedSens=0; | |
53 | } | |
54 | ||
55 | //_____________________________________________________________________________ | |
56 | AliPMDv3::AliPMDv3(const char *name, const char *title) | |
57 | : AliPMD(name,title) | |
58 | { | |
59 | // | |
60 | // Standard constructor | |
61 | // | |
62 | fMedSens=0; | |
63 | } | |
64 | ||
65 | //_____________________________________________________________________________ | |
66 | void AliPMDv3::CreateGeometry() | |
67 | { | |
68 | // | |
69 | // Create geometry for Photon Multiplicity Detector Version 3 : | |
70 | // April 2, 2001 | |
71 | // | |
72 | //Begin_Html | |
73 | /* | |
74 | <img src="picts/AliPMDv3.gif"> | |
75 | */ | |
76 | //End_Html | |
77 | //Begin_Html | |
78 | /* | |
79 | <img src="picts/AliPMDv3Tree.gif"> | |
80 | */ | |
81 | //End_Html | |
82 | GetParameters(); | |
83 | CreateSupermodule(); | |
84 | CreatePMD(); | |
85 | } | |
86 | ||
87 | //_____________________________________________________________________________ | |
88 | void AliPMDv3::CreateSupermodule() | |
89 | { | |
90 | // | |
91 | // Creates the geometry of the cells, places them in supermodule which | |
92 | // is a rhombus object. | |
93 | ||
94 | // *** DEFINITION OF THE GEOMETRY OF THE PMD *** | |
95 | // *** HEXAGONAL CELLS WITH 10 MM SQUARE EQUIVALENT | |
96 | // -- Author : S. Chattopadhyay, 02/04/1999. | |
97 | ||
98 | // Basic unit is ECAR, a hexagonal cell made of Ar+CO2, which is placed inside another | |
99 | // hexagonal cell made of Cu (ECCU) with larger radius, compared to ECAR. The difference | |
100 | // in radius gives the dimension of half width of each cell wall. | |
101 | // These cells are placed as 72 x 72 array in a | |
102 | // rhombus shaped supermodule (EHC1). The rhombus shaped modules are designed | |
103 | // to have closed packed structure. | |
104 | // | |
105 | // Each supermodule (ESM1 or ESM2), made of G10 is filled with following components | |
106 | // EAIR --> Air gap between gas hexagonal cells and G10 backing. | |
107 | // EHC1 --> Rhombus shaped parallelopiped containing the hexagonal cells | |
108 | // EAIR --> Air gap between gas hexagonal cells and G10 backing. | |
109 | // | |
110 | // ESM1 is placed in EMM1 along with EMPB (Pb converter) and EMFE (iron support) | |
111 | // EMM1 made of | |
112 | // ESM1 --> Normal supermodule | |
113 | // EMPB --> Pb converter | |
114 | // EMFE --> Fe backing | |
115 | // | |
116 | // ESM2 is placed in EMM2 along with EMPB (Pb converter) and EMFE (iron support) | |
117 | // EMM2 made of | |
118 | // ESM2 --> Special supermodule containing the cut for the hole | |
119 | // EMPB --> Pb converter | |
120 | // EMFE --> Fe backing | |
121 | ||
122 | // | |
123 | // EPMD | |
124 | // | | |
125 | // | | |
126 | // ------------------------------------------------------------------- | |
127 | // | | | | | |
128 | // EHOL EMM1 EMM2 EALM | |
129 | // | | | |
130 | // ---------------------- ------------------------ | |
131 | // | | | | | | | | | |
132 | // ESM1 EMPB EMFE ESM1 ESM2 EMPB EMFE ESM2 | |
133 | // | | | |
134 | // ------------ ------------- | |
135 | // | | | | | | | |
136 | // EAIR EHC1 EAIR EAIR EHC2 EAIR | |
137 | // | | | |
138 | // ECCU ECCU | |
139 | // | | | |
140 | // ECAR ECAR | |
141 | ||
142 | ||
143 | Int_t i, j; | |
144 | Float_t xb, yb, zb; | |
145 | Int_t number; | |
146 | Int_t ihrotm,irotdm; | |
147 | const Float_t root3_2 = TMath::Sqrt(3.) /2.; | |
148 | Int_t *idtmed = fIdtmed->GetArray()-599; | |
149 | ||
150 | AliMatrix(ihrotm, 90., 30., 90., 120., 0., 0.); | |
151 | AliMatrix(irotdm, 90., 180., 90., 270., 180., 0.); | |
152 | ||
153 | zdist = TMath::Abs(zdist1); | |
154 | ||
155 | ||
156 | //Subhasis, dimensional parameters of rhombus (dpara) as given to gsvolu | |
157 | // rhombus to accomodate 72 x 72 hexagons, and with total 1.2cm extension | |
158 | //(1mm tolerance on both side and 5mm thick G10 wall) | |
159 | // | |
160 | ||
161 | // **** CELL SIZE 20mm^2 EQUIVALENT | |
162 | ||
163 | // Inner hexagon filled with gas (Ar+CO2) | |
164 | ||
165 | Float_t hexd2[10] = {0.,360.,6,2,-0.25,0.,0.23,0.25,0.,0.23}; | |
166 | ||
167 | hexd2[4]= - cell_depth/2.; | |
168 | hexd2[7]= cell_depth/2.; | |
169 | hexd2[6]= cell_radius - cell_wall; | |
170 | hexd2[9]= cell_radius - cell_wall; | |
171 | ||
172 | gMC->Gsvolu("ECAR", "PGON", idtmed[604], hexd2,10); | |
173 | gMC->Gsatt("ECAR", "SEEN", 0); | |
174 | ||
175 | // Outer hexagon made of Copper | |
176 | ||
177 | Float_t hexd1[10] = {0.,360.,6,2,-0.25,0.,0.25,0.25,0.,0.25}; | |
178 | //total wall thickness=0.2*2 | |
179 | ||
180 | hexd1[4]= - cell_depth/2.; | |
181 | hexd1[7]= cell_depth/2.; | |
182 | hexd1[6]= cell_radius; | |
183 | hexd1[9]= cell_radius; | |
184 | ||
185 | gMC->Gsvolu("ECCU", "PGON", idtmed[614], hexd1,10); | |
186 | gMC->Gsatt("ECCU", "SEEN", 1); | |
187 | ||
188 | ||
189 | // Rhombus shaped supermodules (defined by PARA) | |
190 | ||
191 | // volume for SUPERMODULE | |
192 | ||
193 | Float_t dpara_sm[6] = {12.5,12.5,0.8,30.,0.,0.}; | |
194 | dpara_sm[0]=(ncell_sm+0.25)*hexd1[6] ; | |
195 | dpara_sm[1] = dpara_sm[0] *root3_2; | |
196 | dpara_sm[2] = sm_thick/2.; | |
197 | ||
198 | // G10 inner part of supermodule, these will be 9 in all, one being special | |
199 | ||
200 | Float_t dpara_g10[6] = {12.5,12.5,8.,30.,0.,0.}; | |
201 | dpara_g10[0]= dpara_sm[0]; | |
202 | dpara_g10[1]= dpara_sm[1]; | |
203 | dpara_g10[2]= dpara_sm[2]; | |
204 | ||
205 | // | |
206 | gMC->Gsvolu("ESM1","PARA", idtmed[607], dpara_g10, 6); | |
207 | gMC->Gsatt("ESM1", "SEEN", 0); | |
208 | // | |
209 | gMC->Gsvolu("ESM2","PARA", idtmed[607], dpara_g10, 6); | |
210 | gMC->Gsatt("ESM2", "SEEN", 0); | |
211 | ||
212 | // Air residing between the PCB and the base | |
213 | ||
214 | Float_t dpara_air[6] = {12.5,12.5,8.,30.,0.,0.}; | |
215 | dpara_air[0]= dpara_sm[0]; | |
216 | dpara_air[1]= dpara_sm[1]; | |
217 | dpara_air[2]= th_air/2.; | |
218 | ||
219 | gMC->Gsvolu("EAIR","PARA", idtmed[698], dpara_air, 6); | |
220 | gMC->Gsatt("EAIR", "SEEN", 0); | |
221 | ||
222 | // volume for honeycomb chamber (EHC1 and EHC2) | |
223 | ||
224 | Float_t dpara[6] = {12.5,12.5,0.4,30.,0.,0.}; | |
225 | dpara[0] = dpara_sm[0]; | |
226 | dpara[1] = dpara_sm[1]; | |
227 | dpara[2] = cell_depth/2.; | |
228 | ||
229 | gMC->Gsvolu("EHC1","PARA", idtmed[698], dpara, 6); | |
230 | gMC->Gsatt("EHC1", "SEEN", 1); | |
231 | ||
232 | gMC->Gsvolu("EHC2","PARA", idtmed[698], dpara, 6); | |
233 | gMC->Gsatt("EHC2", "SEEN", 1); | |
234 | ||
235 | // --- place inner hex inside outer hex | |
236 | ||
237 | gMC->Gsposp("ECAR", 1, "ECCU", 0., 0., 0., 0, "ONLY", hexd2, 10); | |
238 | ||
239 | // Place outer hex ECCU cells inside EHC1 (72 X 72) | |
240 | ||
241 | Int_t xrow=1; | |
242 | ||
243 | yb = -dpara[1] + (1./root3_2)*hexd1[6]; | |
244 | zb = 0.; | |
245 | ||
246 | for (j = 1; j <= ncell_sm; ++j) { | |
247 | xb =-(dpara[0] + dpara[1]*0.577) + 2*hexd1[6]; //0.577=tan(30deg) | |
248 | if(xrow >= 2){ | |
249 | xb = xb+(xrow-1)*hexd1[6]; | |
250 | } | |
251 | for (i = 1; i <= ncell_sm; ++i) { | |
252 | number = i+(j-1)*ncell_sm; | |
253 | gMC->Gsposp("ECCU", number, "EHC1", xb,yb,zb, ihrotm, "ONLY", hexd1,10); | |
254 | xb += (hexd1[6]*2.); | |
255 | } | |
256 | xrow = xrow+1; | |
257 | yb += (hexd1[6]*TMath::Sqrt(3.)); | |
258 | } | |
259 | ||
260 | ||
261 | // Place outer hex ECCU inside EHC2 | |
262 | // skip cells which go into the hole in top left corner. | |
263 | ||
264 | xrow=1; | |
265 | yb = -dpara[1] + (1./root3_2)*hexd1[6]; | |
266 | zb = 0.; | |
267 | for (j = 1; j <= ncell_sm; ++j) { | |
268 | xb =-(dpara[0] + dpara[1]*0.577) + 2*hexd1[6]; | |
269 | if(xrow >= 2){ | |
270 | xb = xb+(xrow-1)*hexd1[6]; | |
271 | } | |
272 | for (i = 1; i <= ncell_sm; ++i) { | |
273 | number = i+(j-1)*ncell_sm; | |
274 | if(i > ncell_hole || j <= (ncell_sm - ncell_hole)) | |
275 | { | |
276 | gMC->Gsposp("ECCU", number, "EHC2", xb,yb,zb, ihrotm, "ONLY", hexd1,10); | |
277 | } | |
278 | xb += (hexd1[6]*2.); | |
279 | } | |
280 | xrow = xrow+1; | |
281 | yb += (hexd1[6]*TMath::Sqrt(3.)); | |
282 | } | |
283 | ||
284 | // Place EHC1 and EAIR into ESM1; EHC2 and EAIR into ESM2 | |
285 | ||
286 | Float_t z_air1,z_air2,z_gas; | |
287 | ||
288 | z_air1= -dpara_g10[2] + th_base + dpara_air[2]; | |
289 | gMC->Gspos("EAIR", 1, "ESM1", 0., 0., z_air1, 0, "ONLY"); | |
290 | z_gas=z_air1+dpara_air[2]+ th_pcb + dpara[2]; | |
291 | gMC->Gspos("EHC1", 1, "ESM1", 0., 0., z_gas, 0, "ONLY"); | |
292 | z_air2=z_gas+dpara[2]+ th_pcb + dpara_air[2]; | |
293 | gMC->Gspos("EAIR", 2, "ESM1", 0., 0., z_air2, 0, "ONLY"); | |
294 | ||
295 | z_air1= -dpara_g10[2] + th_base + dpara_air[2]; | |
296 | gMC->Gspos("EAIR", 1, "ESM2", 0., 0., z_air1, 0, "ONLY"); | |
297 | z_gas=z_air1+dpara_air[2]+ th_pcb + dpara[2]; | |
298 | gMC->Gspos("EHC2", 1, "ESM2", 0., 0., z_gas, 0, "ONLY"); | |
299 | z_air2=z_gas+dpara[2]+ th_pcb + dpara_air[2]; | |
300 | gMC->Gspos("EAIR", 2, "ESM2", 0., 0., z_air2, 0, "ONLY"); | |
301 | ||
302 | } | |
303 | ||
304 | //_____________________________________________________________________________ | |
305 | ||
306 | void AliPMDv3::CreatePMD() | |
307 | { | |
308 | // | |
309 | // Create final detector from supermodules | |
310 | // | |
311 | // -- Author : Y.P. VIYOGI, 07/05/1996. | |
312 | // -- Modified: P.V.K.S.Baba(JU), 15-12-97. | |
313 | // -- Modified: For New Geometry YPV, March 2001. | |
314 | ||
315 | ||
316 | // Gaspmd, the dimension of TUBE mother volume of PMD, | |
317 | ||
318 | Float_t gaspmd[3] = { 0.,150.,10.}; | |
319 | ||
320 | const Float_t root3_2 = TMath::Sqrt(3.)/2.; | |
321 | const Float_t pi = 3.14159; | |
322 | Int_t i,j; | |
323 | ||
324 | Float_t xp, yp, zp; | |
325 | ||
326 | Int_t num_mod; | |
327 | Int_t jhrot12,jhrot13, irotdm; | |
328 | ||
329 | Int_t *idtmed = fIdtmed->GetArray()-599; | |
330 | ||
331 | // VOLUMES Names : begining with D for all PMD volumes, | |
332 | // The names of SIZE variables begin with S and have more meaningful | |
333 | // characters as shown below. | |
334 | ||
335 | // VOLUME SIZE MEDIUM : REMARKS | |
336 | // ------ ----- ------ : --------------------------- | |
337 | ||
338 | // EPMD GASPMD AIR : INSIDE PMD and its SIZE | |
339 | ||
340 | // *** Define the EPMD Volume and fill with air *** | |
341 | ||
342 | gMC->Gsvolu("EPMD", "TUBE", idtmed[698], gaspmd, 3); | |
343 | gMC->Gsatt("EPMD", "SEEN", 0); | |
344 | ||
345 | AliMatrix(irotdm, 90., 0., 90., 90., 180., 0.); | |
346 | ||
347 | AliMatrix(jhrot12, 90., 120., 90., 210., 0., 0.); | |
348 | AliMatrix(jhrot13, 90., 240., 90., 330., 0., 0.); | |
349 | ||
350 | // dpara_emm1 array contains parameters of the imaginary volume EMM1, | |
351 | // this is just a little more than the side of a supermodule. | |
352 | ||
353 | Float_t dm_thick = 2. * sm_thick + th_lead + th_steel; | |
354 | ||
355 | Float_t dpara_emm1[6] = {12.5,12.5,0.8,30.,0.,0.}; | |
356 | dpara_emm1[0] = sm_length/2.; | |
357 | dpara_emm1[1] = dpara_emm1[0] *root3_2; | |
358 | dpara_emm1[2] = dm_thick/2.; | |
359 | ||
360 | // EMM1 : normal volume as in old cases | |
361 | gMC->Gsvolu("EMM1","PARA", idtmed[698], dpara_emm1, 6); | |
362 | gMC->Gsatt("EMM1", "SEEN", 1); | |
363 | ||
364 | // EMM2 : special volume containing special supermodule | |
365 | gMC->Gsvolu("EMM2","PARA", idtmed[698], dpara_emm1, 6); | |
366 | gMC->Gsatt("EMM2", "SEEN", 1); | |
367 | ||
368 | // | |
369 | // --- DEFINE MODules, iron, and lead voLUMES | |
370 | ||
371 | //place ESM1 into EMM1 and ESM2 into EMM2 along with EMPB and EMFE | |
372 | ||
373 | Float_t dx = sm_length; | |
374 | Float_t dy = dx * root3_2; | |
375 | ||
376 | Float_t xsup[9] = {-dx/2., dx/2., 3.*dx/2., | |
377 | -dx, 0., dx, | |
378 | -3.*dx/2., -dx/2., dx/2.}; | |
379 | ||
380 | Float_t ysup[9] = {dy, dy, dy, | |
381 | 0., 0., 0., | |
382 | -dy, -dy, -dy}; | |
383 | ||
384 | // | |
385 | ||
386 | // volume for SUPERMODULE | |
387 | ||
388 | // Pb Convertor | |
389 | Float_t dpara_pb[6] = {12.5,12.5,8.,30.,0.,0.}; | |
390 | dpara_pb[0] = sm_length/2.; | |
391 | dpara_pb[1] = dpara_pb[0] * root3_2; | |
392 | dpara_pb[2] = th_lead/2.; | |
393 | ||
394 | gMC->Gsvolu("EMPB","PARA", idtmed[600], dpara_pb, 6); | |
395 | gMC->Gsatt ("EMPB", "SEEN", 0); | |
396 | ||
397 | // Fe Support | |
398 | Float_t dpara_fe[6] = {12.5,12.5,8.,30.,0.,0.}; | |
399 | dpara_fe[0] = dpara_pb[0]; | |
400 | dpara_fe[1] = dpara_pb[1]; | |
401 | dpara_fe[2] = th_steel/2.; | |
402 | ||
403 | gMC->Gsvolu("EMFE","PARA", idtmed[618], dpara_fe, 6); | |
404 | gMC->Gsatt ("EMFE", "SEEN", 0); | |
405 | ||
406 | // position supermodule ESM1 inside EMM1 | |
407 | ||
408 | Float_t z_ps,z_pb,z_fe,z_cv; | |
409 | ||
410 | z_ps = - dpara_emm1[2] + sm_thick/2.; | |
411 | gMC->Gspos("ESM1", 2, "EMM1", 0., 0., z_ps, irotdm, "ONLY"); | |
412 | z_pb=z_ps+sm_thick/2.+dpara_pb[2]; | |
413 | gMC->Gspos("EMPB", 1, "EMM1", 0., 0., z_pb, 0, "ONLY"); | |
414 | z_fe=z_pb+dpara_pb[2]+dpara_fe[2]; | |
415 | gMC->Gspos("EMFE", 1, "EMM1", 0., 0., z_fe, 0, "ONLY"); | |
416 | z_cv=z_fe+dpara_fe[2]+sm_thick/2.; | |
417 | gMC->Gspos("ESM1", 1, "EMM1", 0., 0., z_cv, 0, "ONLY"); | |
418 | ||
419 | // position supermodule ESM2 inside EMM2 | |
420 | ||
421 | z_ps = - dpara_emm1[2] + sm_thick/2.; | |
422 | gMC->Gspos("ESM2", 2, "EMM2", 0., 0., z_ps, irotdm, "ONLY"); | |
423 | z_pb = z_ps + sm_thick/2.+dpara_pb[2]; | |
424 | gMC->Gspos("EMPB", 1, "EMM2", 0., 0., z_pb, 0, "ONLY"); | |
425 | z_fe = z_pb + dpara_pb[2]+dpara_fe[2]; | |
426 | gMC->Gspos("EMFE", 1, "EMM2", 0., 0., z_fe, 0, "ONLY"); | |
427 | z_cv = z_fe + dpara_fe[2]+sm_thick/2.; | |
428 | gMC->Gspos("ESM2", 1, "EMM2", 0., 0., z_cv, 0, "ONLY"); | |
429 | // | |
430 | ||
431 | // EHOL is a tube structure made of air | |
432 | ||
433 | Float_t d_hole[3]; | |
434 | d_hole[0] = 0.; | |
435 | d_hole[1] = ncell_hole * cell_radius *2. * root3_2 + boundary; | |
436 | d_hole[2] = dm_thick/2.; | |
437 | ||
438 | gMC->Gsvolu("EHOL", "TUBE", idtmed[698], d_hole, 3); | |
439 | gMC->Gsatt("EHOL", "SEEN", 1); | |
440 | ||
441 | //Al-rod as boundary of the supermodules | |
442 | ||
443 | Float_t Al_rod[3] ; | |
444 | Al_rod[0] = sm_length * 3/2.; | |
445 | Al_rod[1] = boundary; | |
446 | Al_rod[2] = dm_thick/2.; | |
447 | ||
448 | gMC->Gsvolu("EALM","BOX ", idtmed[698], Al_rod, 3); | |
449 | gMC->Gsatt ("EALM", "SEEN", 1); | |
450 | Float_t xalm[3]; | |
451 | xalm[0]=Al_rod[0]; | |
452 | xalm[1]=-xalm[0]/2.; | |
453 | xalm[2]=xalm[1]; | |
454 | ||
455 | Float_t yalm[3]; | |
456 | yalm[0]=0.; | |
457 | yalm[1]=xalm[0]*root3_2; | |
458 | yalm[2]=-yalm[1]; | |
459 | ||
460 | // delx = full side of the supermodule | |
461 | Float_t delx=sm_length * 3.; | |
462 | Float_t x1= delx*root3_2 /2.; | |
463 | Float_t x4=delx/4.; | |
464 | ||
465 | // xpos and ypos are the x & y coordinates of the centres of EMM1 volumes | |
466 | ||
467 | Float_t xoff = boundary * TMath::Tan(pi/6.); | |
468 | Float_t xmod[3]={x4 + xoff , x4 + xoff, -2.*x4-boundary/root3_2}; | |
469 | Float_t ymod[3] = {-x1 - boundary, x1 + boundary, 0.}; | |
470 | Float_t xpos[9], ypos[9]; | |
471 | Float_t theta[3] = {0., 2.*pi/3., 4.*pi/3.}; | |
472 | Int_t irotate[3] = {0, jhrot12, jhrot13}; | |
473 | ||
474 | for (j=0; j<3; ++j) | |
475 | { | |
476 | gMC->Gsposp("EALM", j+1, "EPMD", xalm[j],yalm[j], 0., irotate[j], "ONLY", Al_rod, 3); | |
477 | for (i=0; i<9; ++i) | |
478 | { | |
479 | xpos[i]=xmod[j] + xsup[i]*TMath::Cos(theta[j]) - ysup[i]*TMath::Sin(theta[j]); | |
480 | ypos[i]=ymod[j] + xsup[i]*TMath::Sin(theta[j]) + ysup[i]*TMath::Cos(theta[j]); | |
481 | ||
482 | if(fDebug) printf("%s: %f %f \n", ClassName(), xpos[i], ypos[i]); | |
483 | ||
484 | num_mod = i + 1 + j*9; | |
485 | ||
486 | printf("\n%s: Num_mod %d\n",ClassName(),num_mod); | |
487 | ||
488 | if(i==0){ | |
489 | gMC->Gsposp("EMM2", num_mod, "EPMD", xpos[i],ypos[i], 0., irotate[j], "ONLY", dpara_emm1, 6); | |
490 | } | |
491 | else { | |
492 | gMC->Gsposp("EMM1", num_mod, "EPMD", xpos[i],ypos[i], 0., irotate[j], "ONLY", dpara_emm1, 6); | |
493 | } | |
494 | } | |
495 | } | |
496 | ||
497 | ||
498 | // place EHOL in the centre of EPMD | |
499 | gMC->Gspos("EHOL", 1, "EPMD", 0.,0.,0., 0, "ONLY"); | |
500 | ||
501 | // --- Place the EPMD in ALICE | |
502 | xp = 0.; | |
503 | yp = 0.; | |
504 | zp = zdist1; | |
505 | ||
506 | gMC->Gspos("EPMD", 1, "ALIC", xp,yp,zp, 0, "ONLY"); | |
507 | ||
508 | } | |
509 | ||
510 | ||
511 | //_____________________________________________________________________________ | |
512 | void AliPMDv3::DrawModule() | |
513 | { | |
514 | // | |
515 | // Draw a shaded view of the Photon Multiplicity Detector | |
516 | // | |
517 | ||
518 | gMC->Gsatt("*", "seen", -1); | |
519 | gMC->Gsatt("alic", "seen", 0); | |
520 | // | |
521 | // Set the visibility of the components | |
522 | // | |
523 | gMC->Gsatt("ECAR","seen",0); | |
524 | gMC->Gsatt("ECCU","seen",1); | |
525 | gMC->Gsatt("EHC1","seen",1); | |
526 | gMC->Gsatt("EHC1","seen",1); | |
527 | gMC->Gsatt("EHC2","seen",1); | |
528 | gMC->Gsatt("EMM1","seen",1); | |
529 | gMC->Gsatt("EHOL","seen",1); | |
530 | gMC->Gsatt("EPMD","seen",0); | |
531 | // | |
532 | gMC->Gdopt("hide", "on"); | |
533 | gMC->Gdopt("shad", "on"); | |
534 | gMC->Gsatt("*", "fill", 7); | |
535 | gMC->SetClipBox("."); | |
536 | gMC->SetClipBox("*", 0, 3000, -3000, 3000, -6000, 6000); | |
537 | gMC->DefaultRange(); | |
538 | gMC->Gdraw("alic", 40, 30, 0, 22, 20.5, .02, .02); | |
539 | gMC->Gdhead(1111, "Photon Multiplicity Detector Version 1"); | |
540 | ||
541 | //gMC->Gdman(17, 5, "MAN"); | |
542 | gMC->Gdopt("hide", "off"); | |
543 | } | |
544 | ||
545 | //_____________________________________________________________________________ | |
546 | void AliPMDv3::CreateMaterials() | |
547 | { | |
548 | // | |
549 | // Create materials for the PMD | |
550 | // | |
551 | // ORIGIN : Y. P. VIYOGI | |
552 | // | |
553 | ||
554 | // --- The Argon- CO2 mixture --- | |
555 | Float_t ag[2] = { 39.95 }; | |
556 | Float_t zg[2] = { 18. }; | |
557 | Float_t wg[2] = { .8,.2 }; | |
558 | Float_t dar = .001782; // --- Ar density in g/cm3 --- | |
559 | // --- CO2 --- | |
560 | Float_t ac[2] = { 12.,16. }; | |
561 | Float_t zc[2] = { 6.,8. }; | |
562 | Float_t wc[2] = { 1.,2. }; | |
563 | Float_t dc = .001977; | |
564 | Float_t dco = .002; // --- CO2 density in g/cm3 --- | |
565 | ||
566 | Float_t absl, radl, a, d, z; | |
567 | Float_t dg; | |
568 | Float_t x0ar; | |
569 | //Float_t x0xe=2.4; | |
570 | //Float_t dxe=0.005858; | |
571 | Float_t buf[1]; | |
572 | Int_t nbuf; | |
573 | Float_t asteel[4] = { 55.847,51.9961,58.6934,28.0855 }; | |
574 | Float_t zsteel[4] = { 26.,24.,28.,14. }; | |
575 | Float_t wsteel[4] = { .715,.18,.1,.005 }; | |
576 | ||
577 | Int_t *idtmed = fIdtmed->GetArray()-599; | |
578 | Int_t isxfld = gAlice->Field()->Integ(); | |
579 | Float_t sxmgmx = gAlice->Field()->Max(); | |
580 | ||
581 | // --- Define the various materials for GEANT --- | |
582 | AliMaterial(1, "Pb $", 207.19, 82., 11.35, .56, 18.5); | |
583 | x0ar = 19.55 / dar; | |
584 | AliMaterial(2, "Argon$", 39.95, 18., dar, x0ar, 6.5e4); | |
585 | AliMixture(3, "CO2 $", ac, zc, dc, -2, wc); | |
586 | AliMaterial(4, "Al $", 26.98, 13., 2.7, 8.9, 18.5); | |
587 | AliMaterial(6, "Fe $", 55.85, 26., 7.87, 1.76, 18.5); | |
588 | AliMaterial(7, "W $", 183.85, 74., 19.3, .35, 10.3); | |
589 | AliMaterial(8, "G10 $", 20., 10., 1.7, 19.4, 999.); | |
590 | AliMaterial(9, "SILIC$", 28.09, 14., 2.33, 9.36, 45.); | |
591 | AliMaterial(10, "Be $", 9.01, 4., 1.848, 35.3, 36.7); | |
592 | AliMaterial(15, "Cu $", 63.54, 29., 8.96, 1.43, 15.); | |
593 | AliMaterial(16, "C $", 12.01, 6., 2.265, 18.8, 49.9); | |
594 | AliMaterial(17, "POLYCARBONATE $", 20., 10., 1.2, 34.6, 999.); | |
595 | AliMixture(19, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel); | |
596 | // AliMaterial(31, "Xenon$", 131.3, 54., dxe, x0xe, 6.5e4); | |
597 | ||
598 | AliMaterial(96, "MYLAR$", 8.73, 4.55, 1.39, 28.7, 62.); | |
599 | AliMaterial(97, "CONCR$", 20., 10., 2.5, 10.7, 40.); | |
600 | AliMaterial(98, "Vacum$", 1e-9, 1e-9, 1e-9, 1e16, 1e16); | |
601 | AliMaterial(99, "Air $", 14.61, 7.3, .0012, 30420., 67500.); | |
602 | ||
603 | // define gas-mixtures | |
604 | ||
00d6d986 | 605 | char namate[21]=""; |
9e1a0ddb | 606 | gMC->Gfmate((*fIdmate)[3], namate, a, z, d, radl, absl, buf, nbuf); |
607 | ag[1] = a; | |
608 | zg[1] = z; | |
609 | dg = (dar * 4 + dco) / 5; | |
610 | AliMixture(5, "ArCO2$", ag, zg, dg, 2, wg); | |
611 | ||
612 | // Define tracking media | |
613 | AliMedium(1, "Pb conv.$", 1, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1); | |
614 | AliMedium(7, "W conv.$", 7, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1); | |
615 | AliMedium(8, "G10plate$", 8, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1); | |
616 | AliMedium(4, "Al $", 4, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1); | |
617 | AliMedium(6, "Fe $", 6, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1); | |
618 | AliMedium(5, "ArCO2 $", 5, 1, 0, isxfld, sxmgmx, .1, .1, .1, .1); | |
619 | AliMedium(9, "SILICON $", 9, 1, 0, isxfld, sxmgmx, .1, .1, .1, .1); | |
620 | AliMedium(10, "Be $", 10, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1); | |
621 | AliMedium(98, "Vacuum $", 98, 0, 0, isxfld, sxmgmx, 1., .1, .1, 10); | |
622 | AliMedium(99, "Air gaps$", 99, 0, 0, isxfld, sxmgmx, 1., .1, .1, .1); | |
623 | AliMedium(15, "Cu $", 15, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1); | |
624 | AliMedium(16, "C $", 16, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1); | |
625 | AliMedium(17, "PLOYCARB$", 17, 0, 0, isxfld, sxmgmx, .1, .1, .01, .1); | |
626 | AliMedium(19, " S steel$", 19, 0, 0, isxfld, sxmgmx, 1., .1, .01, .1); | |
627 | // AliMedium(31, "Xenon $", 31, 1, 0, isxfld, sxmgmx, .1, .1, .1, .1); | |
628 | ||
629 | // --- Generate explicitly delta rays in the iron, aluminium and lead --- | |
630 | gMC->Gstpar(idtmed[600], "LOSS", 3.); | |
631 | gMC->Gstpar(idtmed[600], "DRAY", 1.); | |
632 | ||
633 | gMC->Gstpar(idtmed[603], "LOSS", 3.); | |
634 | gMC->Gstpar(idtmed[603], "DRAY", 1.); | |
635 | ||
636 | gMC->Gstpar(idtmed[604], "LOSS", 3.); | |
637 | gMC->Gstpar(idtmed[604], "DRAY", 1.); | |
638 | ||
639 | gMC->Gstpar(idtmed[605], "LOSS", 3.); | |
640 | gMC->Gstpar(idtmed[605], "DRAY", 1.); | |
641 | ||
642 | gMC->Gstpar(idtmed[606], "LOSS", 3.); | |
643 | gMC->Gstpar(idtmed[606], "DRAY", 1.); | |
644 | ||
645 | gMC->Gstpar(idtmed[607], "LOSS", 3.); | |
646 | gMC->Gstpar(idtmed[607], "DRAY", 1.); | |
647 | ||
648 | // --- Energy cut-offs in the Pb and Al to gain time in tracking --- | |
649 | // --- without affecting the hit patterns --- | |
650 | gMC->Gstpar(idtmed[600], "CUTGAM", 1e-4); | |
651 | gMC->Gstpar(idtmed[600], "CUTELE", 1e-4); | |
652 | gMC->Gstpar(idtmed[600], "CUTNEU", 1e-4); | |
653 | gMC->Gstpar(idtmed[600], "CUTHAD", 1e-4); | |
654 | gMC->Gstpar(idtmed[605], "CUTGAM", 1e-4); | |
655 | gMC->Gstpar(idtmed[605], "CUTELE", 1e-4); | |
656 | gMC->Gstpar(idtmed[605], "CUTNEU", 1e-4); | |
657 | gMC->Gstpar(idtmed[605], "CUTHAD", 1e-4); | |
658 | gMC->Gstpar(idtmed[606], "CUTGAM", 1e-4); | |
659 | gMC->Gstpar(idtmed[606], "CUTELE", 1e-4); | |
660 | gMC->Gstpar(idtmed[606], "CUTNEU", 1e-4); | |
661 | gMC->Gstpar(idtmed[606], "CUTHAD", 1e-4); | |
662 | gMC->Gstpar(idtmed[603], "CUTGAM", 1e-4); | |
663 | gMC->Gstpar(idtmed[603], "CUTELE", 1e-4); | |
664 | gMC->Gstpar(idtmed[603], "CUTNEU", 1e-4); | |
665 | gMC->Gstpar(idtmed[603], "CUTHAD", 1e-4); | |
666 | gMC->Gstpar(idtmed[609], "CUTGAM", 1e-4); | |
667 | gMC->Gstpar(idtmed[609], "CUTELE", 1e-4); | |
668 | gMC->Gstpar(idtmed[609], "CUTNEU", 1e-4); | |
669 | gMC->Gstpar(idtmed[609], "CUTHAD", 1e-4); | |
670 | ||
671 | // --- Prevent particles stopping in the gas due to energy cut-off --- | |
672 | gMC->Gstpar(idtmed[604], "CUTGAM", 1e-5); | |
673 | gMC->Gstpar(idtmed[604], "CUTELE", 1e-5); | |
674 | gMC->Gstpar(idtmed[604], "CUTNEU", 1e-5); | |
675 | gMC->Gstpar(idtmed[604], "CUTHAD", 1e-5); | |
676 | gMC->Gstpar(idtmed[604], "CUTMUO", 1e-5); | |
677 | } | |
678 | ||
679 | //_____________________________________________________________________________ | |
680 | void AliPMDv3::Init() | |
681 | { | |
682 | // | |
683 | // Initialises PMD detector after it has been built | |
684 | // | |
685 | Int_t i; | |
686 | kdet=1; | |
687 | // | |
688 | if(fDebug) { | |
689 | printf("\n%s: ",ClassName()); | |
690 | for(i=0;i<35;i++) printf("*"); | |
691 | printf(" PMD_INIT "); | |
692 | for(i=0;i<35;i++) printf("*"); | |
693 | printf("\n"); | |
694 | printf("%s: PMD simulation package (v3) initialised\n", | |
695 | ClassName()); | |
696 | printf("%s: parameters of pmd\n",ClassName()); | |
697 | printf("%s: %10.2f %10.2f %10.2f %10.2f\n",ClassName(), | |
698 | cell_radius,cell_wall,cell_depth,zdist1 ); | |
699 | printf("%s: ",ClassName()); | |
700 | for(i=0;i<80;i++) printf("*"); | |
701 | printf("\n"); | |
702 | } | |
703 | ||
704 | Int_t *idtmed = fIdtmed->GetArray()-599; | |
705 | fMedSens=idtmed[605-1]; | |
706 | } | |
707 | ||
708 | //_____________________________________________________________________________ | |
709 | void AliPMDv3::StepManager() | |
710 | { | |
711 | // | |
712 | // Called at each step in the PMD | |
713 | // | |
714 | Int_t copy; | |
715 | Float_t hits[4], destep; | |
716 | Float_t center[3] = {0,0,0}; | |
717 | Int_t vol[5]; | |
718 | //char *namep; | |
719 | ||
720 | if(gMC->GetMedium() == fMedSens && (destep = gMC->Edep())) { | |
721 | ||
722 | gMC->CurrentVolID(copy); | |
723 | ||
724 | //namep=gMC->CurrentVolName(); | |
725 | //printf("Current vol is %s \n",namep); | |
726 | ||
727 | vol[0]=copy; | |
728 | gMC->CurrentVolOffID(1,copy); | |
729 | ||
730 | //namep=gMC->CurrentVolOffName(1); | |
731 | //printf("Current vol 11 is %s \n",namep); | |
732 | ||
733 | vol[1]=copy; | |
734 | gMC->CurrentVolOffID(2,copy); | |
735 | ||
736 | //namep=gMC->CurrentVolOffName(2); | |
737 | //printf("Current vol 22 is %s \n",namep); | |
738 | ||
739 | vol[2]=copy; | |
740 | ||
741 | // if(strncmp(namep,"EHC1",4))vol[2]=1; | |
742 | ||
743 | gMC->CurrentVolOffID(3,copy); | |
744 | ||
745 | //namep=gMC->CurrentVolOffName(3); | |
746 | //printf("Current vol 33 is %s \n",namep); | |
747 | ||
748 | vol[3]=copy; | |
749 | gMC->CurrentVolOffID(4,copy); | |
750 | ||
751 | //namep=gMC->CurrentVolOffName(4); | |
752 | //printf("Current vol 44 is %s \n",namep); | |
753 | ||
754 | vol[4]=copy; | |
755 | //printf("volume number %d,%d,%d,%d,%d,%f \n",vol[0],vol[1],vol[2],vol[3],vol[4],destep*1000000); | |
756 | ||
757 | gMC->Gdtom(center,hits,1); | |
758 | hits[3] = destep*1e9; //Number in eV | |
759 | AddHit(gAlice->CurrentTrack(), vol, hits); | |
760 | } | |
761 | } | |
762 | ||
763 | ||
764 | //------------------------------------------------------------------------ | |
765 | // Get parameters | |
766 | ||
767 | void AliPMDv3::GetParameters() | |
768 | { | |
769 | Int_t ncell_um, num_um; | |
770 | ncell_um=24; | |
771 | num_um=3; | |
772 | ncell_hole=12; | |
773 | cell_radius=0.25; | |
774 | cell_wall=0.02; | |
775 | cell_depth=0.25 * 2.; | |
776 | // | |
777 | boundary=0.7; | |
778 | ncell_sm=ncell_um * num_um; //no. of cells in a row in one supermodule | |
779 | sm_length= ((ncell_sm + 0.25 ) * cell_radius) * 2.; | |
780 | // | |
781 | th_base=0.3; | |
782 | th_air=0.1; | |
783 | th_pcb=0.16; | |
784 | // | |
785 | sm_thick = th_base + th_air + th_pcb + cell_depth + th_pcb + th_air + th_pcb; | |
786 | // | |
787 | th_lead=1.5; | |
788 | th_steel=0.5; | |
789 | // | |
790 | zdist1 = -370.; | |
791 | } | |
792 | ||
793 | ||
794 | ||
795 | ||
796 | ||
797 | ||
798 | ||
799 | ||
800 | ||
801 | ||
802 | ||
803 | ||
804 |