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[u/mrichter/AliRoot.git] / ZDC / AliZDC.cxx
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fe4da5cc 1///////////////////////////////////////////////////////////////////////////////
2// //
3// Zero Degree Calorimeter //
4// This class contains the basic functions for the Time Of Flight //
5// detector. Functions specific to one particular geometry are //
6// contained in the derived classes //
7// //
8//Begin_Html
9/*
10<img src="gif/AliZDCClass.gif">
11</pre>
12<br clear=left>
13<font size=+2 color=red>
14<p>The responsible person for this module is
15<a href="mailto:Eugenio.Scomparin@cern.ch">Eugenio Scomparin</a>.
16</font>
17<pre>
18*/
19//End_Html
20// //
21// //
22///////////////////////////////////////////////////////////////////////////////
23
24#include <TBRIK.h>
25#include <TNode.h>
26
27#include "AliZDC.h"
28#include "AliRun.h"
29#include "AliCallf77.h"
30#include "AliConst.h"
31#include "AliMC.h"
32
33#ifndef WIN32
34# define zdc_init zdc_init_
35# define zdc_step zdc_step_
36# define zdc_setbeam zdc_setbeam_
37# define zdc_sethijing zdc_sethijing_
38# define zdc_setvenus zdc_setvenus_
39# define zdc_setkine zdc_setkine_
40#else
41# define zdc_step ZDC_STEP
42# define zdc_setbeam ZDC_SETBEAM
43# define zdc_sethijing ZDC_SETHIJING
44# define zdc_setvenus ZDC_SETVENUS
45# define zdc_setkine ZDC_SETKINE
46#endif
47
48extern "C" void type_of_call zdc_init();
49extern "C" void type_of_call zdc_step();
50extern "C" void type_of_call zdc_setbeam(Int_t beam, Float_t fx, Float_t fy,
51 Float_t sx, Float_t sy, Float_t div,
52 Float_t angle, Int_t cross);
53extern "C" void type_of_call zdc_sethijing(Int_t hij, Int_t hijf, Int_t hijsp,
54 DEFCHARD DEFCHARL);
55extern "C" void type_of_call zdc_setvenus(Int_t hiv, Int_t hivf, Int_t hivsp,
56 DEFCHARD DEFCHARL);
57extern "C" void type_of_call zdc_setkine(Int_t code, Float_t pmom, Float_t cx,
58 Float_t cy, Float_t cz, Int_t type,
59 Int_t fermi);
60
61ClassImp(AliZDC)
62
63//_____________________________________________________________________________
64AliZDC::AliZDC()
65{
66 //
67 // Default constructor for the Zero Degree Calorimeter base class
68 //
69 fIshunt = 0;
70}
71
72//_____________________________________________________________________________
73AliZDC::AliZDC(const char *name, const char *title)
74 : AliDetector(name,title)
75{
76 //
77 // Standard constructor for the Zero Degree Calorimeter base class
78 //
79
80 //
81 // Allocate the array of hits
82 fHits = new TClonesArray("AliZDChit", 405);
83
84 fIshunt = 1;
85}
86
87//_____________________________________________________________________________
88void AliZDC::AddHit(Int_t track, Int_t *vol, Float_t *hits)
89{
90 //
91 // Add a Zero Degree Calorimeter hit
92 //
93 TClonesArray &lhits = *fHits;
94 new(lhits[fNhits++]) AliZDChit(fIshunt,track,vol,hits);
95}
96
97//_____________________________________________________________________________
98void AliZDC::BuildGeometry()
99{
100 //
101 // Build the ROOT TNode geometry for event display
102 // in the Zero Degree Calorimeter
103 // This routine is dummy for the moment
104 //
105
106 // TNode *Node, *Top;
107 // TBRIK *brik;
108 // const int kColorZDC = kRed;
109
110 //
111 // Top=gAlice->GetGeometry()->GetNode("alice");
112
113 // ZDC
114 /*
115 brik = new TBRIK("S_ZDC","ZDC box","void",300,300,5);
116 Top->cd();
117 Node = new TNode("ZDC","ZDC","S_ZDC",0,0,600,"");
118 Node->SetLineColor(kColorZDC);
119 fNodes->Add(Node);
120 */
121}
122
123//_____________________________________________________________________________
124Int_t AliZDC::DistancetoPrimitive(Int_t , Int_t )
125{
126 //
127 // Distance from the mouse to the Zero Degree Calorimeter
128 // Dummy routine
129 //
130 return 9999;
131}
132
133//_____________________________________________________________________________
134void AliZDC::SetBeam(Int_t beam, Float_t fx, Float_t fy, Float_t sx,
135 Float_t sy, Float_t div, Float_t angle, Int_t cross)
136{
137 //
138 // Set beam characteristic
139 // This routine has to be revised as it is disconnected from the
140 // actual generation in this version of AliRoot
141 //
142
143 // beam : 1 = gaussian beam
144 // : 2 = uniform beam
145 // fx : x-coordinate of beam offset
146 // fy : y-coordinate of beam offset
147 // sx : sigma-x of the beam (gaussian or uniform)
148 // sy : sigma-y of the beam (gaussian or uniform)
149 // div : divergency of the beam (32*10**-6 rad for LHC)
150 // angle : beam crossing angle (100*10**-6 rad for LHC)
151 // cross : 1 = horizontal beam crossing
152 // : 2 = vertical beam crossing
153 zdc_setbeam(beam,fx,fy,sx,sy,div,angle,cross);
154}
155
156//_____________________________________________________________________________
157void AliZDC::SetHijing(Int_t hij, Int_t hijf, Int_t hijsp, const char *file)
158{
159 //
160 // Set the parameter for the HIJING generation
161 // This routine has to be revised as it is disconnected from the
162 // actual generation in this version of AliRoot
163 //
164
165 // HIJ : 1 = read HIJING event file
166 // : 2 = " " " " + debug
167 // HIJF : event number of the first event to be read from file
168 // HIJSP: 0 = read all particles
169 // : 1 = remove spectator nucleons
170 zdc_sethijing(hij,hijf,hijsp, PASSCHARD(file) PASSCHARL(file));
171}
172
173//_____________________________________________________________________________
174void AliZDC::SetVenus(Int_t hiv, Int_t hivf, Int_t hivsp, const char *file)
175{
176 //
177 // Set the parameter for the VENUS generation
178 // This routine has to be revised as it is disconnected from the
179 // actual generation in this version of AliRoot
180 //
181
182 // HIV : 1 = read VENUS event file
183 // : 2 = " " " " + debug
184 // HIVF : event number of the first event to be read from file
185 // HIVSP: 0 = read all particles
186 // : 1 = remove spectator nucleons
187 zdc_setvenus(hiv,hivf,hivsp, PASSCHARD(file) PASSCHARL(file));
188}
189
190//_____________________________________________________________________________
191void AliZDC::SetKine(Int_t code, Float_t pmom, Float_t cx, Float_t cy,
192 Float_t cz, Int_t type, Int_t fermi)
193{
194 //
195 // Set the parameter for the event generation
196 // This routine has to be revised as it is disconnected from the
197 // actual generation in this version of AliRoot
198 //
199
200 // code : GEANT code of the test particle
201 // pmom : absolute value of particle momentum
202 // cx,cy,cz : director cosines of the track (if type)
203 // type : 0 = take director cosines from cx,cy,cz
204 // : <>0 = pseudorapidity of the test particle
205 // fermi : 0 = no Fermi motion for the spectator nucleons
206 // : 1 = Fermi motion for the spectator nucleons
207 zdc_setkine(code,pmom,cx,cy,cz,type,fermi);
208}
209
210//_____________________________________________________________________________
211void AliZDC::StepManager()
212{
213 //
214 // Routine called at every step in the Zero Degree Calorimeter
215 // This is a simple interface to the FORTRAN routine
216 // A step manager should be written
217 //
218 zdc_step();
219}
220
221
222ClassImp(AliZDCv1)
223
224
225///////////////////////////////////////////////////////////////////////////////
226// //
227// Zero Degree Calorimeter version 1 //
228// //
229//Begin_Html
230/*
231<img src="gif/AliZDCv1Class.gif">
232*/
233//End_Html
234// //
235// //
236///////////////////////////////////////////////////////////////////////////////
237
238//_____________________________________________________________________________
239AliZDCv1::AliZDCv1() : AliZDC()
240{
241 //
242 // Default constructor for Zero Degree Calorimeter
243 //
244}
245
246//_____________________________________________________________________________
247AliZDCv1::AliZDCv1(const char *name, const char *title)
248 : AliZDC(name,title)
249{
250 //
251 // Standard constructor for Zero Degree Calorimeter
252 //
253}
254
255//_____________________________________________________________________________
256void AliZDCv1::CreateGeometry()
257{
258 //
259 // Create the geometry for the Zero Degree Calorimeter version 1
260 // -- Author : E Scomparin
261 //
262 //Begin_Html
263 /*
264 <img src="gif/AliZDCv1.gif">
265 */
266 //End_Html
267 //Begin_Html
268 /*
269 <img src="gif/AliZDCv1Tree.gif">
270 */
271 //End_Html
272
273 // The following variables were illegaly initialized in zdc_init.
274 // These variables should become data members of this class
275 // once zdc_init has been converted
276 //* Initialize COMMON block ZDC_CGEOM
277 //*
278
279 AliMC* pMC = AliMC::GetMC();
280
281 const Int_t NZPTX=4;
282 const Int_t NZPTY=1;
283 const Int_t NZNTX=2;
284 const Int_t NZNTY=2;
285
286 Float_t HDZN[3] = {4.0,4.0,50.0};
287 Float_t HDZP[3] = {10.0,6.0,75.0};
288 // Coordinates of the center of the ZDC front face in the MRS
289 Float_t ZNPOS[3] = {-0.5,0.,11613.};
290 Float_t ZPPOS[3] = {-21.0,0.,11563.};
291 Float_t FIZN[3] = {0.,0.01825,50.0};
292 Float_t FIZP[3] = {0.,0.01825,75.0};
293 Float_t GRZN[3] = {0.025,0.025,50.0};
294 Float_t GRZP[3] = {0.040,0.040,75.0};
295 Int_t NCEN[3] = {11,11,0};
296 Int_t NCEP[3] = {10,10,0};
297
298 Float_t angle;
299 Float_t zq, conpar[9], tubpar[3];
300 Int_t im1, im2;
301 Float_t zd1, zd2;
302
303
304 Int_t *idtmed = gAlice->Idtmed();
305
306 // -- Mother of the ZDC
307 conpar[0] = 0.;
308 conpar[1] = 360.;
309 conpar[2] = 2.;
310 conpar[3] = 1920.;
311 conpar[4] = 0.;
312 conpar[5] = 55.;
313 conpar[6] = 13060.;
314 conpar[7] = 0.;
315 conpar[8] = 55.;
316 pMC->Gsvolu("ZDC ", "PCON", idtmed[891], conpar, 9);
317 pMC->Gspos("ZDC ", 1, "ALIC", 0., 0., 0., 0, "ONLY");
318 // -- FIRST SECTION OF THE BEAM PIPE (from compensator dipole to
319 // beginning of D1)
320
321 zd1 = 1920.;
322
323 tubpar[0] = 2.3;
324 tubpar[1] = 2.5;
325 tubpar[2] = 1961.75;
326 pMC->Gsvolu("P001", "TUBE", idtmed[851], tubpar, 3);
327 pMC->Gspos("P001", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
328
329 //-- SECOND SECTION OF THE BEAM PIPE (FROM THE END OF D1 TO THE BEGINNING OF
330 // D2)
331
332 zd1 = 6316.+472.5;
333
334 tubpar[0] = 7.3/2.;
335 tubpar[1] = 7.7/2.;
336 tubpar[2] = 90.*0.5;
337 pMC->Gsvolu("P002", "TUBE", idtmed[851], tubpar, 3);
338 pMC->Gspos("P002", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
339
340 zd1 += tubpar[2] * 2.;
341
342 tubpar[0] = 7.3/2.;
343 tubpar[1] = 7.7/2.;
344 tubpar[2] = 10.*0.5;
345 pMC->Gsvolu("P003", "TUBE", idtmed[851], tubpar, 3);
346 pMC->Gspos("P003", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
347
348 zd1 += tubpar[2] * 2.;
349
350 conpar[0] = 3.16/2.;
351 conpar[1] = 7.3/2.;
352 conpar[2] = 7.7/2.;
353 conpar[3] = 9.8/2.;
354 conpar[4] = 10.0/2.;
355 pMC->Gsvolu("P004", "CONE", idtmed[851], conpar, 5);
356 pMC->Gspos("P004", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
357
358 zd1 += conpar[0] * 2.;
359
360 tubpar[0] = 9.8/2.;
361 tubpar[1] = 10.0/2;
362 tubpar[2] = 490./2.;
363 pMC->Gsvolu("P005", "TUBE", idtmed[851], tubpar, 3);
364 pMC->Gspos("P005", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
365
366 zd1 += tubpar[2] * 2.;
367
368 conpar[0] = 30./2.;
369 conpar[1] = 9.8/2.;
370 conpar[2] = 10.0/2.;
371 conpar[3] = 20.4/2.;
372 conpar[4] = 20.6/2.;
373 pMC->Gsvolu("P006", "CONE", idtmed[851], conpar, 5);
374 pMC->Gspos("P006", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
375
376 zd1 += conpar[0] * 2.;
377
378 tubpar[0] = 20.4/2.;
379 tubpar[1] = 20.6/2.;
380 tubpar[2] = 150./2.;
381 pMC->Gsvolu("P007", "TUBE", idtmed[851], tubpar, 3);
382 pMC->Gspos("P007", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
383
384 zd1 += tubpar[2] * 2.;
385
386 conpar[0] = 13.6/2.;
387 conpar[1] = 20.4/2.;
388 conpar[2] = 20.6/2.;
389 conpar[3] = 25.2/2.;
390 conpar[4] = 25.4/2.;
391 pMC->Gsvolu("P008", "CONE", idtmed[851], conpar, 5);
392 pMC->Gspos("P008", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
393
394 zd1 += conpar[0] * 2.;
395
396 tubpar[0] = 25.2/2.;
397 tubpar[1] = 25.4/2.;
398 tubpar[2] = 205.8/2.;
399 pMC->Gsvolu("P009", "TUBE", idtmed[851], tubpar, 3);
400 pMC->Gspos("P009", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
401
402 zd1 += tubpar[2] * 2.;
403
404 tubpar[0] = 43.8/2.;
405 tubpar[1] = 44.0/2.;
406 tubpar[2] = 500./2.;
407 pMC->Gsvolu("P010", "TUBE", idtmed[851], tubpar, 3);
408 pMC->Gspos("P010", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
409
410 zd1 += tubpar[2] * 2.;
411
412 tubpar[0] = 31.8/2.;
413 tubpar[1] = 32.0/2.;
414 tubpar[2] = 757.5/2.;
415 pMC->Gsvolu("P011", "TUBE", idtmed[851], tubpar, 3);
416 pMC->Gspos("P011", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
417
418 zd1 += tubpar[2] * 2.;
419
420 conpar[0] = 22.7/2.;
421 conpar[1] = 31.8/2.;
422 conpar[2] = 32.0/2.;
423 conpar[3] = 39.8/2.;
424 conpar[4] = 40.0/2.;
425 pMC->Gsvolu("P012", "CONE", idtmed[851], conpar, 5);
426 pMC->Gspos("P012", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
427
428 zd1 += conpar[0] * 2.;
429
430 tubpar[0] = 39.8/2.;
431 tubpar[1] = 40.0/2.;
432 tubpar[2] = 100./2.;
433 pMC->Gsvolu("P013", "TUBE", idtmed[851], tubpar, 3);
434 pMC->Gspos("P013", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
435
436 zd1 += tubpar[2] * 2.;
437
438 tubpar[0] = 39.8/2.;
439 tubpar[1] = 40.0/2.;
440 tubpar[2] = 600./2.;
441 pMC->Gsvolu("P014", "TUBE", idtmed[851], tubpar, 3);
442 pMC->Gspos("P014", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
443
444 zd1 += tubpar[2] * 2.;
445
446 conpar[0] = 28.4/2.;
447 conpar[1] = 39.8/2.;
448 conpar[2] = 40.0/2.;
449 conpar[3] = 49.8/2.;
450 conpar[4] = 50.0/2.;
451 pMC->Gsvolu("P015", "CONE", idtmed[851], conpar, 5);
452 pMC->Gspos("P015", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
453
454 zd1 += conpar[0] * 2.;
455
456 tubpar[0] = 49.8/2.;
457 tubpar[1] = 50.0/2.;
458 tubpar[2] = 100./2.;
459 pMC->Gsvolu("P016", "TUBE", idtmed[851], tubpar, 3);
460 pMC->Gspos("P016", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
461
462 zd1 += tubpar[2] * 2.;
463
464 tubpar[0] = 49.8/2.;
465 tubpar[1] = 50.0/2.;
466 tubpar[2] = 600./2.;
467 pMC->Gsvolu("P017", "TUBE", idtmed[851], tubpar, 3);
468 pMC->Gspos("P017", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
469
470 zd1 += tubpar[2] * 2.;
471
472 conpar[0] = 28.4/2.;
473 conpar[1] = 49.8/2.;
474 conpar[2] = 50.0/2.;
475 conpar[3] = 59.8/2.;
476 conpar[4] = 60.0/2.;
477 pMC->Gsvolu("P018", "CONE", idtmed[851], conpar, 5);
478 pMC->Gspos("P018", 1, "ZDC ", 0., 0., conpar[0] + zd1, 0, "ONLY");
479
480 zd1 += conpar[0] * 2.;
481
482 tubpar[0] = 59.8/2.;
483 tubpar[1] = 60.0/2.;
484 tubpar[2] = 50./2.;
485 pMC->Gsvolu("P019", "TUBE", idtmed[851], tubpar, 3);
486 pMC->Gspos("P019", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
487
488 zd1 += tubpar[2] * 2.;
489
490 tubpar[0] = 59.8/2.;
491 tubpar[1] = 60.0/2.;
492 tubpar[2] = 800./2.;
493 pMC->Gsvolu("P020", "TUBE", idtmed[851], tubpar, 3);
494 pMC->Gspos("P020", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
495
496 zd1 += tubpar[2] * 2.;
497
498 tubpar[0] = 0.;
499 tubpar[1] = 60.0/2.;
500 tubpar[2] = 0.2/2.;
501 pMC->Gsvolu("P021", "TUBE", idtmed[851], tubpar, 3);
502 pMC->Gspos("P021", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
503
504 zd1 += tubpar[2] * 2.;
505
506 tubpar[0] = 0.;
507 tubpar[1] = 4.4/2.;
508 tubpar[2] = 0.2/2.;
509 pMC->Gsvolu("Q021", "TUBE", idtmed[889], tubpar, 3);
510 tubpar[0] = 0.;
511 tubpar[1] = 7.0/2.;
512 tubpar[2] = 0.2/2.;
513 pMC->Gsvolu("R021", "TUBE", idtmed[889], tubpar, 3);
514 // -- POSITION Q021 INSIDE P021
515 pMC->Gspos("Q021", 1, "P021", -7.7, 0., 0., 0, "ONLY");
516 // -- POSITION R020 INSIDE P020
517 pMC->Gspos("R021", 1, "P021", 7.7, 0., 0., 0, "ONLY");
518
519 // -- BEAM PIPES BETWEEN END OF CONICAL PIPE AND BEGINNING OF D2
520 tubpar[0] = 4.0/2.;
521 tubpar[1] = 4.4/2.;
522 tubpar[2] = 645.*0.5;
523 pMC->Gsvolu("P022", "TUBE", idtmed[851], tubpar, 3);
524 tubpar[0] = 7.0/2.;
525 tubpar[1] = 7.4/2.;
526 tubpar[2] = 645.*0.5;
527 pMC->Gsvolu("P023", "TUBE", idtmed[851], tubpar, 3);
528
529 // -- ROTATE PIPES
530 AliMatrix(im1, 90.-0.071, 0., 90., 90., .071, 180.);
531 angle = .071*kDegrad;
532 pMC->Gspos("P022", 1, "ZDC ", TMath::Sin(angle) * 322.5 - 9.7 +
533 TMath::Sin(angle) * 472.5, 0., tubpar[2] + zd1, im1, "ONLY");
534 AliMatrix(im2, 90.+0.071, 0., 90., 90., .071, 0.);
535 pMC->Gspos("P023", 1, "ZDC ", 9.7 - TMath::Sin(angle) * 322.5, 0.,
536 tubpar[2] + zd1, im2, "ONLY");
537
538 // -- END OF BEAM PIPE VOLUME DEFINITION. MAGNET DEFINITION FOLLOWS
539 // (LHC OPTICS 6)
540
541 // -- COMPENSATOR DIPOLE (MCBWA)
542 // GAP (VACUUM WITH MAGNETIC FIELD)
543
544 tubpar[0] = 0.;
545 tubpar[1] = 4.5;
546 tubpar[2] = 190./2.;
547 pMC->Gsvolu("MCBW", "TUBE", idtmed[890], tubpar, 3);
548 pMC->Gspos("MCBW", 1, "ZDC ", 0., 0., tubpar[2] + 1920., 0, "ONLY");
549
550 // -- YOKE (IRON WITHOUT MAGNETIC FIELD)
551
552 tubpar[0] = 4.5;
553 tubpar[1] = 55.;
554 tubpar[2] = 190./2.;
555 pMC->Gsvolu("YMCB", "TUBE", idtmed[851], tubpar, 3);
556 pMC->Gspos("YMCB", 1, "ZDC ", 0., 0., tubpar[2] + 1920., 0, "ONLY");
557
558 // -- INNER TRIPLET
559
560 zq = 2300.;
561
562 // -- DEFINE MQXL AND MQX QUADRUPOLE ELEMENT
563
564 // MQXL
565 // -- GAP (VACUUM WITH MAGNETIC FIELD)
566
567 tubpar[0] = 0.;
568 tubpar[1] = 3.5;
569 tubpar[2] = 630./2.;
570 pMC->Gsvolu("MQXL", "TUBE", idtmed[890], tubpar, 3);
571
572 // -- YOKE
573
574 tubpar[0] = 3.5;
575 tubpar[1] = 22.;
576 tubpar[2] = 630./2.;
577 pMC->Gsvolu("YMQL", "TUBE", idtmed[851], tubpar, 3);
578
579 pMC->Gspos("MQXL", 1, "ZDC ", 0., 0., tubpar[2] + zq, 0, "ONLY");
580 pMC->Gspos("YMQL", 1, "ZDC ", 0., 0., tubpar[2] + zq, 0, "ONLY");
581
582 pMC->Gspos("MQXL", 2, "ZDC ", 0., 0., tubpar[2] + zq + 2430., 0, "ONLY");
583 pMC->Gspos("YMQL", 2, "ZDC ", 0., 0., tubpar[2] + zq + 2430., 0, "ONLY");
584
585 // -- MQX
586 // -- GAP (VACUUM WITH MAGNETIC FIELD)
587
588 tubpar[0] = 0.;
589 tubpar[1] = 3.5;
590 tubpar[2] = 550./2.;
591 pMC->Gsvolu("MQX ", "TUBE", idtmed[890], tubpar, 3);
592
593 // -- YOKE
594
595 tubpar[0] = 3.5;
596 tubpar[1] = 22.;
597 tubpar[2] = 550./2.;
598 pMC->Gsvolu("YMQ ", "TUBE", idtmed[851], tubpar, 3);
599
600 pMC->Gspos("MQX ", 1, "ZDC ", 0., 0., tubpar[2] + zq + 880., 0, "ONLY");
601 pMC->Gspos("YMQ ", 1, "ZDC ", 0., 0., tubpar[2] + zq + 880., 0, "ONLY");
602
603 pMC->Gspos("MQX ", 2, "ZDC ", 0., 0., tubpar[2] + zq + 1530., 0, "ONLY");
604 pMC->Gspos("YMQ ", 2, "ZDC ", 0., 0., tubpar[2] + zq + 1530., 0, "ONLY");
605
606 // -- SEPARATOR DIPOLE D1
607
608 zd1 = 5843.5;
609
610 // -- GAP (VACUUM WITH MAGNETIC FIELD)
611
612 tubpar[0] = 0.;
613 tubpar[1] = 4.5;
614 tubpar[2] = 945/2.;
615 pMC->Gsvolu("D1 ", "TUBE", idtmed[890], tubpar, 3);
616
617 // -- YOKE
618
619 tubpar[0] = 0.;
620 tubpar[1] = 55.;
621 tubpar[2] = 945/2.;
622 pMC->Gsvolu("YD1 ", "TUBE", idtmed[851], tubpar, 3);
623
624 pMC->Gspos("YD1 ", 1, "ZDC ", 0., 0., tubpar[2] + zd1, 0, "ONLY");
625 pMC->Gspos("D1 ", 1, "YD1 ", 0., 0., 0., 0, "ONLY");
626
627 // -- DIPOLE D2
628
629 zd2 = 12113.2;
630
631 // -- GAP (VACUUM WITH MAGNETIC FIELD)
632
633 tubpar[0] = 0.;
634 tubpar[1] = 4.5;
635 tubpar[2] = 945./2.;
636 pMC->Gsvolu("D2 ", "TUBE", idtmed[890], tubpar, 3);
637
638 // -- YOKE
639
640 tubpar[0] = 0.;
641 tubpar[1] = 55.;
642 tubpar[2] = 945./2.;
643 pMC->Gsvolu("YD2 ", "TUBE", idtmed[851], tubpar, 3);
644
645 pMC->Gspos("YD2 ", 1, "ZDC ", 0., 0., tubpar[2] + zd2, 0, "ONLY");
646
647 pMC->Gspos("D2 ", 1, "YD2 ", -9.7, 0., 0., 0, "ONLY");
648 pMC->Gspos("D2 ", 2, "YD2 ", 9.7, 0., 0., 0, "ONLY");
649
650 // -- END OF MAGNET DEFINITION
651
652 // ----------------- Hadronic calorimeters -------------------- *
653
654 // Neutron calorimeter
655
656 pMC->Gsvolu("ZNEU", "BOX ", idtmed[800], HDZN, 3); // Passive material
657 pMC->Gsvolu("ZNFI", "TUBE", idtmed[802], FIZN, 3); // Active material
658 pMC->Gsvolu("ZNGR", "BOX ", idtmed[889], GRZN, 3); // Empty grooves
659
660 // Divide ZNEU in towers
661 // (for hits purposes)
662
663 pMC->Gsdvn("ZNTX", "ZNEU", NZNTX, 1); // x-tower
664 pMC->Gsdvn("ZN1 ", "ZNTX", NZNTY, 2); // y-tower
665
666 // Divide ZNEU in minitowers
667 // (NCEN(1)= NUMBER OF FIBERS PER TOWER ALONG X-AXIS,
668 // NCEN(2)= NUMBER OF FIBERS PER TOWER ALONG Y-AXIS)
669 // (one fiber per minitower)
670
671 pMC->Gsdvn("ZNSL", "ZN1 ", NCEN[1], 2); // Slices
672 pMC->Gsdvn("ZNST", "ZNSL", NCEN[0], 1); // Sticks
673
674 // --- Position the empty grooves in the sticks
675 pMC->Gspos("ZNGR", 1, "ZNST", 0., 0., 0., 0, "ONLY");
676 // --- Position the fibers in the grooves
677 pMC->Gspos("ZNFI", 1, "ZNGR", 0., 0., 0., 0, "ONLY");
678 // --- Position the neutron calorimeter in ZDC
679 pMC->Gspos("ZNEU", 1, "ZDC ", ZNPOS[0], ZNPOS[1], ZNPOS[2] + HDZN[2], 0, "ONLY");
680
681 // Proton calorimeter
682
683 pMC->Gsvolu("ZPRO", "BOX ", idtmed[801], HDZP, 3); // Passive material
684 pMC->Gsvolu("ZPFI", "TUBE", idtmed[802], FIZP, 3); // Active material
685 pMC->Gsvolu("ZPGR", "BOX ", idtmed[889], GRZP, 3); // Empty grooves
686
687 // Divide ZPRO in towers
688 // (for hits purposes)
689
690 pMC->Gsdvn("ZPTX", "ZPRO", NZPTX, 1); // x-tower
691 pMC->Gsdvn("ZP1 ", "ZPTX", NZPTY, 2); // y-tower
692
693
694 // Divide ZPRO in minitowers
695 // (NCEP[0]= NUMBER OF FIBERS ALONG X-AXIS PER MINITOWER,
696 // NCEP[1]= NUMBER OF FIBERS ALONG Y-AXIS PER MINITOWER)
697 // (one fiber per minitower)
698
699 pMC->Gsdvn("ZPSL", "ZP1 ", NCEP[1], 2); // Slices
700 pMC->Gsdvn("ZPST", "ZPSL", NCEP[0], 1); // Sticks
701
702 // --- Position the empty grooves in the sticks
703 pMC->Gspos("ZPGR", 1, "ZPST", 0., 0., 0., 0, "ONLY");
704 // --- Position the fibers in the grooves
705 pMC->Gspos("ZPFI", 1, "ZPGR", 0., 0., 0., 0, "ONLY");
706 // --- Position the proton calorimeter in ZDC
707 pMC->Gspos("ZPRO", 1, "ZDC ", ZPPOS[0], ZPPOS[1], ZPPOS[2] + HDZP[2], 0, "ONLY");
708
709}
710
711//_____________________________________________________________________________
712void AliZDCv1::DrawDetector()
713{
714 //
715 // Draw a shaded view of the Zero Degree Calorimeter version 1
716 //
717
718 AliMC* pMC = AliMC::GetMC();
719
720 // Set everything unseen
721 pMC->Gsatt("*", "seen", -1);
722 //
723 // Set ALIC mother transparent
724 pMC->Gsatt("ALIC","SEEN",0);
725 //
726 // Set the volumes visible
727 pMC->Gsatt("ZDC","SEEN",0);
728 pMC->Gsatt("P001","SEEN",1);
729 pMC->Gsatt("P002","SEEN",1);
730 pMC->Gsatt("P003","SEEN",1);
731 pMC->Gsatt("P004","SEEN",1);
732 pMC->Gsatt("P005","SEEN",1);
733 pMC->Gsatt("P006","SEEN",1);
734 pMC->Gsatt("P007","SEEN",1);
735 pMC->Gsatt("P008","SEEN",1);
736 pMC->Gsatt("P009","SEEN",1);
737 pMC->Gsatt("P010","SEEN",1);
738 pMC->Gsatt("P011","SEEN",1);
739 pMC->Gsatt("P012","SEEN",1);
740 pMC->Gsatt("P013","SEEN",1);
741 pMC->Gsatt("P014","SEEN",1);
742 pMC->Gsatt("P015","SEEN",1);
743 pMC->Gsatt("P016","SEEN",1);
744 pMC->Gsatt("P017","SEEN",1);
745 pMC->Gsatt("P018","SEEN",1);
746 pMC->Gsatt("P019","SEEN",1);
747 pMC->Gsatt("P020","SEEN",1);
748 pMC->Gsatt("P021","SEEN",1);
749 pMC->Gsatt("Q021","SEEN",1);
750 pMC->Gsatt("R021","SEEN",1);
751 pMC->Gsatt("P022","SEEN",1);
752 pMC->Gsatt("P023","SEEN",1);
753 pMC->Gsatt("D1 ","SEEN",1);
754 pMC->Gsatt("YD1 ","SEEN",1);
755 pMC->Gsatt("D2 ","SEEN",1);
756 pMC->Gsatt("YD2 ","SEEN",1);
757 pMC->Gsatt("MCBW","SEEN",1);
758 pMC->Gsatt("YMCB","SEEN",1);
759 pMC->Gsatt("MQXL","SEEN",1);
760 pMC->Gsatt("YMQL","SEEN",1);
761 pMC->Gsatt("MQX","SEEN",1);
762 pMC->Gsatt("YMQ","SEEN",1);
763 pMC->Gsatt("D1","SEEN",1);
764 pMC->Gsatt("YD1","SEEN",1);
765 pMC->Gsatt("D2","SEEN",1);
766 pMC->Gsatt("YD2","SEEN",1);
767 pMC->Gsatt("ZNEU","SEEN",0);
768 pMC->Gsatt("ZNFI","SEEN",0);
769 pMC->Gsatt("ZNGR","SEEN",0);
770 pMC->Gsatt("ZNTX","SEEN",0);
771 pMC->Gsatt("ZN1 ","COLO",2);
772 pMC->Gsatt("ZN1 ","SEEN",1);
773 pMC->Gsatt("ZNSL","SEEN",0);
774 pMC->Gsatt("ZNST","SEEN",0);
775 pMC->Gsatt("ZPRO","SEEN",0);
776 pMC->Gsatt("ZPFI","SEEN",0);
777 pMC->Gsatt("ZPGR","SEEN",0);
778 pMC->Gsatt("ZPTX","SEEN",0);
779 pMC->Gsatt("ZP1 ","SEEN",1);
780 pMC->Gsatt("ZPSL","SEEN",0);
781 pMC->Gsatt("ZPST","SEEN",0);
782
783 //
784 pMC->Gdopt("hide", "on");
785 pMC->Gdopt("shad", "on");
786 pMC->Gsatt("*", "fill", 7);
787 pMC->SetClipBox(".");
788 pMC->SetClipBox("*", 0, 100, -100, 100, 12000, 16000);
789 pMC->DefaultRange();
790 pMC->Gdraw("alic", 40, 30, 0, 488, 220, .07, .07);
791 pMC->Gdhead(1111, "Zero Degree Calorimeter Version 1");
792 pMC->Gdman(18, 4, "MAN");
793}
794
795//_____________________________________________________________________________
796void AliZDCv1::CreateMaterials()
797{
798 //
799 // Create Materials for the Zero Degree Calorimeter
800 //
801 // Origin : E. Scomparin
802
803 AliMC* pMC = AliMC::GetMC();
804
805 Int_t *idtmed = gAlice->Idtmed();
806
807 Float_t dens, ubuf[1], wmat[2];
808 Int_t isvol_active;
809 Float_t a[2];
810 Int_t i;
811 Float_t z[2], epsil=0.001, stmin=0.01;
812 Int_t isvol;
813 Float_t fieldm = gAlice->Field()->Max();
814 Int_t inofld;
815 Float_t deemax=-1;
816 Float_t tmaxfd=gAlice->Field()->Max();
817 Int_t isxfld = gAlice->Field()->Integ();
818 Float_t stemax;
819
820 // --- Store in UBUF r0 for nuclear radius calculation R=r0*A**1/3
821
822 // --- Tungsten
823 ubuf[0] = 1.11;
824 AliMaterial(1, "TUNG", 183.85, 74., 19.3, .35, 10.3, ubuf, 1);
825
826 // --- Brass (CuZn)
827 dens = 8.48;
828 a[0] = 63.546;
829 a[1] = 65.39;
830 z[0] = 29.;
831 z[1] = 30.;
832 wmat[0] = .63;
833 wmat[1] = .37;
834 AliMixture(2, "BRASS ", a, z, dens, 2, wmat);
835
836 // --- SiO2
837 dens = 2.64;
838 a[0] = 28.086;
839 a[1] = 15.9994;
840 z[0] = 14.;
841 z[1] = 8.;
842 wmat[0] = 1.;
843 wmat[1] = 2.;
844 AliMixture(3, "SIO2 ", a, z, dens, -2, wmat);
845
846 // --- Lead
847 ubuf[0] = 1.12;
848 AliMaterial(4, "LEAD", 207.19, 82., 11.35, .56, 18.5, ubuf, 1);
849
850 // --- Copper
851 ubuf[0] = 1.1;
852 AliMaterial(5, "COPP", 63.54, 29., 8.96, 1.4, 0., ubuf, 1);
853
854 // --- Tantalum
855 ubuf[0] = 1.1;
856 AliMaterial(6, "TANT", 180.95, 73., 16.65, .4, 11.9, ubuf, 1);
857
858 // Steel still to be added
859
860 // --- Iron
861 ubuf[0] = 1.1;
862 AliMaterial(52, "IRON", 55.85, 26., 7.87, 1.76, 0., ubuf, 1);
863
864 // --- Vacuum (no magnetic field)
865 AliMaterial(90, "VOID", 1e-16, 1e-16, 1e-16, 1e16, 1e16, ubuf,0);
866
867 // --- Vacuum (magnetic field)
868 AliMaterial(91, "VOIM", 1e-16, 1e-16, 1e-16, 1e16, 1e16, ubuf,0);
869
870 // --- Air non magnetic
871 AliMaterial(92, "Air $", 14.61, 7.3, .001205, 30420., 67500., ubuf, 0);
872
873 // --- Definition of tracking media:
874
875 // --- Tungsten = 801 ;
876 // --- Brass = 802 ;
877 // --- Fibers (SiO2) = 803 ;
878 // --- Lead = 804 ;
879 // --- Copper = 805 ;
880 // --- Tantalum = 806 ;
881 // --- Steel = 851 ;
882 // --- Iron = 852 ;
883 // --- Vacuum (no field) = 890
884 // --- Vacuum (with field) = 891
885 // --- Air (no field) = 892
886
887
888 // --- Tracking media parameters
889 epsil = .01;
890 stemax = 1.;
891 isvol = 0;
892 isvol_active = 1;
893 inofld = 0;
894 fieldm = 0.;
895
896 AliMedium(801, "ZW", 1, isvol_active, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
897 AliMedium(802, "ZBRASS", 2, isvol_active, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
898 AliMedium(803, "ZSIO2", 3, isvol_active, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
899 AliMedium(804, "ZLEAD", 4, isvol_active, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
900 AliMedium(805, "ZCOPP", 5, isvol_active, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
901 AliMedium(806, "ZTANT", 6, isvol_active, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
902 AliMedium(852, "ZIRON", 52, isvol, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
903 AliMedium(890, "ZVOID", 90, isvol, inofld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
904 AliMedium(892, "Air", 92, 0, inofld, fieldm, tmaxfd, stemax,deemax, epsil, stmin);
905
906 fieldm = 45.;
907 // AliMedium(891, "ZVOIM", 91, isvol, isxfld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
908 AliMedium(891, "ZVOIM", 91, isvol, isxfld, fieldm, tmaxfd, stemax, deemax, epsil, stmin);
909
910 // Thresholds for showering in the ZDCs
911
912 i = 801;
913 pMC->Gstpar(idtmed[i-1], "CUTGAM", .01);
914 pMC->Gstpar(idtmed[i-1], "CUTELE", .01);
915 pMC->Gstpar(idtmed[i-1], "CUTNEU", .1);
916 pMC->Gstpar(idtmed[i-1], "CUTHAD", .1);
917 i = 802;
918 pMC->Gstpar(idtmed[i-1], "CUTGAM", .01);
919 pMC->Gstpar(idtmed[i-1], "CUTELE", .01);
920 pMC->Gstpar(idtmed[i-1], "CUTNEU", .1);
921 pMC->Gstpar(idtmed[i-1], "CUTHAD", .1);
922
923 // Avoid too detailed showering along the beam line
924
925 i = 852;
926 pMC->Gstpar(idtmed[i-1], "CUTGAM", .1);
927 pMC->Gstpar(idtmed[i-1], "CUTELE", .1);
928 pMC->Gstpar(idtmed[i-1], "CUTNEU", 1.);
929 pMC->Gstpar(idtmed[i-1], "CUTHAD", 1.);
930
931 // Avoid interaction in fibers (only energy loss allowed)
932 i = 803;
933 pMC->Gstpar(idtmed[i-1], "DCAY", 0.);
934 pMC->Gstpar(idtmed[i-1], "MULS", 0.);
935 pMC->Gstpar(idtmed[i-1], "PFIS", 0.);
936 pMC->Gstpar(idtmed[i-1], "MUNU", 0.);
937 pMC->Gstpar(idtmed[i-1], "LOSS", 1.);
938 pMC->Gstpar(idtmed[i-1], "PHOT", 0.);
939 pMC->Gstpar(idtmed[i-1], "COMP", 0.);
940 pMC->Gstpar(idtmed[i-1], "PAIR", 0.);
941 pMC->Gstpar(idtmed[i-1], "BREM", 0.);
942 pMC->Gstpar(idtmed[i-1], "DRAY", 0.);
943 pMC->Gstpar(idtmed[i-1], "ANNI", 0.);
944 pMC->Gstpar(idtmed[i-1], "HADR", 0.);
945}
946
947ClassImp(AliZDChit)
948
949//_____________________________________________________________________________
950AliZDChit::AliZDChit(Int_t shunt, Int_t track, Int_t *vol, Float_t *hits):
951 AliHit(shunt, track)
952{
953 //
954 // Add a Zero Degree Calorimeter hit
955 //
956 Int_t i;
957 for (i=0;i<4;i++) fVolume[i] = vol[i];
958 fX=hits[0];
959 fY=hits[1];
960 fZ=hits[2];
961 fEnergy=hits[3];
962}