1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
18 ///////////////////////////////////////////////////////////////////////////////
20 // ALICE Cosmic Ray Trigger //
22 // This class contains the functions for version 0 of the ALICE Cosmic Ray //
23 // Trigger. This vesion is suposed to work as standalone module //
28 // Arturo Fernandez <afernand@fcfm.buap.mx>
29 // Enrique Gamez <egamez@fcfm.buap.mx>
31 // Universidad Autonoma de Puebla
36 <img src="picts/AliCRTv1Class.gif">
39 <p>The responsible person for this module is
40 <a href="mailto:egamez@fcfm.buap.mx">Enrique Gamez</a>.
46 ///////////////////////////////////////////////////////////////////////////////
50 #include <TClonesArray.h>
51 #include <TLorentzVector.h>
53 #include <TVirtualMC.h>
58 #include "AliCRThit.h"
59 #include "AliCRTModule.h"
60 #include "AliCRTConstants.h"
66 //_____________________________________________________________________________
71 // Default constructor
77 //_____________________________________________________________________________
78 AliCRTv1::AliCRTv1(const char *name, const char *title)
82 // Standard constructor
86 <img src="picts/AliCRTv1.gif">
89 fIshunt = 1; // All hits are associated with primary particles
91 fHits = new TClonesArray("AliCRThit",400);
92 gAlice->GetMCApp()->AddHitList(fHits);
99 //_____________________________________________________________________________
100 AliCRTv1::AliCRTv1(const AliCRTv1& crt)
109 //_____________________________________________________________________________
110 AliCRTv1::~AliCRTv1()
113 // Default destructor
117 //_____________________________________________________________________________
118 AliCRTv1& AliCRTv1::operator=(const AliCRTv1& crt)
121 // Asingment operator
127 //_____________________________________________________________________________
128 void AliCRTv1::CreateMaterials()
132 // Use the parent class definition of the materials
134 AliCRT::CreateMaterials();
137 //_____________________________________________________________________________
138 void AliCRTv1::CreateGeometry()
141 // Create geometry for the CRT array
144 Int_t idrotm[2499]; // The rotation matrix.
145 Int_t* idtmed = fIdtmed->GetArray() - 1099 ;
146 AliCRTConstants* crtConstants = AliCRTConstants::Instance();
148 // Create the mother volume, the one which will contain all the material
151 pbox[0] = AliCRTConstants::Instance()->Depth()*TMath::Tan(67.5*kDegrad);
153 pbox[1] = crtConstants->Depth();
155 gMC->Gsvolu("CRT", "BOX", idtmed[1114], pbox, 3);
156 gMC->Gspos("CRT", 1, "ALIC", 0, 0, 0, 0, "ONLY");
159 this->CreateShafts();
162 this->CreateMolasse();
164 // This volume can be seen as the volume which ACORDE will ocupate
165 // above the upper face of the L3 magnet. Inside this volume the detectors
166 // aboce the magnet will be, then there will be two copies of this volume,
167 // one for each side.
169 //box[0] = 2*crtConstants->MagMinRadius()*TMath::Sin(kDegrad*22.5);
170 box[0] = crtConstants->MagMinRadius()*TMath::Sin(kDegrad*22.5);
171 box[1] = crtConstants->MagMaxRadius() - crtConstants->MagMinRadius();
172 box[2] = crtConstants->MagnetLenght()/2;
173 gMC->Gsvolu("CRT1", "BOX", idtmed[1134], box, 3);
175 // Check if the AliCRTModule instance have been set, otherwise
176 // use the default values
178 Info("CreateGeometry", "Using default dimensions");
179 fModule = new AliCRTModule("CRTmod", "Default module dimensions");
182 // The full module volume.
183 // This volume will be ocupied by all the material of the module
184 // the scintillators, the aluminium frame, etc.
185 box[0] = fModule->FrameLength()/2;
186 box[1] = fModule->FrameThickness()/2;
187 box[2] = fModule->FrameWidth()/2;
188 gMC->Gsvolu("CRT2", "BOX", idtmed[1114], box, 3);
191 box[0] = crtConstants->SinglePaletteLenght()/4;
192 box[1] = crtConstants->SinglePaletteHeight();
193 box[2] = crtConstants->SinglePaletteWidth()/2;
194 gMC->Gsvolu("CRT3", "BOX", idtmed[1112], box, 3);
195 gMC->Gspos("CRT3", 1, "CRT2", 0, 2, 0, 0, "ONLY");
197 // The metallic frame
198 box[0] = fModule->FrameLength()/2;
199 box[1] = fModule->FrameThickness()/2;
201 gMC->Gsvolu("CRT4", "BOX", idtmed[1108], box, 3);
202 gMC->Gspos("CRT4", 1, "CRT2", 0, 0, 13 - box[2], 0, "MANY");
203 gMC->Gspos("CRT4", 2, "CRT2", 0, 0, -13 + box[2], 0, "MANY");
206 box[1] = fModule->FrameThickness()/2;
207 box[2] = fModule->FrameWidth()/2;
208 gMC->Gsvolu("CRT5", "BOX", idtmed[1108], box, 3);
209 gMC->Gspos("CRT5", 1, "CRT2", 140 - box[0], 0, 0, 0, "MANY");
210 gMC->Gspos("CRT5", 2, "CRT2", -140 + box[0], 0, 0, 0, "MANY");
214 box[1] = fModule->FrameThickness()/2;
216 gMC->Gsvolu("CRT6", "BOX", idtmed[1108], box, 3);
218 // Now put into the volume CR11 all the above volumes.
219 // 20 scintillation modules
221 Int_t copyNumber = 0;
222 for ( Int_t k = 0; k < fModule->NumberOfRows(); k++ ) {
223 Float_t zCoordinate = k*fModule->ZGap() - 450;
224 gMC->Gspos("CRT2",++copyNumber,"CRT1",-150, 15, zCoordinate, 0, "MANY");
225 gMC->Gspos("CRT2",++copyNumber,"CRT1",150, 15, zCoordinate, 0, "MANY");
229 // Put the support bars
230 gMC->Gspos("CRT6", 1, "CRT1", -75, 5, 0, 0, "ONLY");
231 gMC->Gspos("CRT6", 2, "CRT1", -225, 5, 0, 0, "ONLY");
232 gMC->Gspos("CRT6", 3, "CRT1", 75, 5, 0, 0, "ONLY");
233 gMC->Gspos("CRT6", 4, "CRT1", 225, 5, 0, 0, "ONLY");
235 // Now put a copy of CR11 on the 3 upper faces of the magnet
236 // In the right side side of the magnet
237 AliMatrix(idrotm[231], 90, 45, 90, 135, 0, 0);
238 // In the left side side of the magnet
239 AliMatrix(idrotm[232], 90, 315, 90, 45, 0, 0);
241 Float_t x = crtConstants->MagMaxRadius();
242 gMC->Gspos("CRT1", 1, "ALIC", 0, x, 0, 0, "MANY");
243 gMC->Gspos("CRT1", 2, "ALIC", -x*TMath::Sin(kDegrad*45), x*TMath::Cos(kDegrad*45), 0, idrotm[231], "MANY");
244 gMC->Gspos("CRT1", 3, "ALIC", x*TMath::Sin(kDegrad*45), x*TMath::Cos(kDegrad*45), 0, idrotm[232], "MANY");
248 //_____________________________________________________________________________
249 void AliCRTv1::CreateMolasse()
254 Int_t idrotm[2499]; // The rotation matrix.
255 Int_t* idtmed = fIdtmed->GetArray() - 1099 ;
257 Float_t px24radius = 2300/2;
260 Float_t px24Z = 2300;
262 Float_t pm25radius = 910/2;
263 Float_t pm25X = 2100;
267 Float_t pgc2radius = 1100/2;
268 Float_t pgc2X = -375;
270 Float_t pgc2Z = -(1900 + 2987.7);
272 Float_t concreteWidth = 100; // Standard width of the hall walls.
275 // Create a local mother volume.
277 pbox[0] = AliCRTConstants::Instance()->Depth()*TMath::Tan(67.5*kDegrad);
278 pbox[1] = AliCRTConstants::Instance()->Depth()/2;
280 gMC->Gsvolu("CMO1", "BOX", idtmed[1114], pbox, 3);
282 // Now put the molasse exactly above the hall. OK
286 ptubs[1] = 2100 - pm25radius;
287 ptubs[2] = 1900/2 + px24radius;
290 gMC->Gsvolu("CMO2", "TUBS", idtmed[1123], ptubs, 5);
291 gMC->Gspos("CMO2", 1, "CMO1", 0, 500-AliCRTConstants::Instance()->Depth()/2, ptubs[2]-1900, 0, "MANY");
293 // Molasse around the RB24/26 Wall. OK
294 ptubs[0] = 220 + 1600;
295 ptubs[1] = AliCRTConstants::Instance()->Depth() - ptubs[0];
296 ptubs[2] = 2987.7/2 - 1100/4 - concreteWidth/2;
299 gMC->Gsvolu("CMO3", "TUBS", idtmed[1123], ptubs, 5);
300 gMC->Gspos("CMO3", 1, "CMO1", 70, 40-AliCRTConstants::Instance()->Depth()/2, -1900 - ptubs[2], 0, "MANY");
302 // A big block above the RB24/26 wall. OK
303 pbox[0] = AliCRTConstants::Instance()->Depth()*TMath::Tan(67.5*kDegrad);
304 pbox[1] = (AliCRTConstants::Instance()->Depth() - 220 - 1600)/2;
305 pbox[2] = 2987.7/2 - 1100/4 - concreteWidth/2;
306 gMC->Gsvolu("CMO4", "BOX", idtmed[1123], pbox, 3);
307 gMC->Gspos("CMO4", 1, "CMO1", 0, AliCRTConstants::Instance()->Depth()/2 - pbox[1], -1900 - pbox[2], 0, "MANY");
308 // Small blocks below the volume CMO4 on both sides of the wall RB24/26. OK
309 pbox[0] = (AliCRTConstants::Instance()->Depth()*TMath::Tan(67.5*kDegrad) - ptubs[0])/2;
310 pbox[1] = AliCRTConstants::Instance()->Depth()/2 - pbox[1];
311 gMC->Gsvolu("CM17", "BOX", idtmed[1123], pbox, 3);
312 gMC->Gspos("CM17", 1, "CMO1", AliCRTConstants::Instance()->Depth()*TMath::Tan(67.5*kDegrad) - pbox[0], -AliCRTConstants::Instance()->Depth()/2 + pbox[1], -1900 - pbox[2], 0, "MANY");
313 gMC->Gspos("CM17", 2, "CMO1", -AliCRTConstants::Instance()->Depth()*TMath::Tan(67.5*kDegrad)+ pbox[0], -AliCRTConstants::Instance()->Depth()/2 + pbox[1], -1900 - pbox[2], 0, "MANY");
315 // And a big block of molasse above the hall up to the surface. OK
316 pbox[0] = pm25X - pm25radius;
317 pbox[1] = (AliCRTConstants::Instance()->Depth()-500-1170)/2;
318 pbox[2] = (1900 + 1150)/2;
319 gMC->Gsvolu("CMO5", "BOX", idtmed[1123], pbox, 3);
320 gMC->Gspos("CMO5", 1, "CMO1", 0,AliCRTConstants::Instance()->Depth()/2-pbox[1], pbox[2]-1900, 0, "MANY");
321 // Small blocks of molasse betwen the blocks CMO2, CMO5 and PM25. Ok
322 pbox[0] = (pm25X - pm25radius - 1170)/2;
324 gMC->Gsvolu("CM16", "BOX", idtmed[1123], pbox, 3);
325 gMC->Gspos("CM16", 1, "CMO1", 1170 + pbox[0], -AliCRTConstants::Instance()->Depth()/2+pbox[1], pbox[2] - 1900, 0, "MANY");
327 // Molasse around the shafts.
328 AliMatrix(idrotm[2003], 0, 0, 90, 0, 90, 90);
329 // Around the PX24, the open section. OK
330 ptubs[0] = px24radius + concreteWidth;
331 ptubs[1] = ptubs[0] + 1000;
332 ptubs[2] = (2300 - (5150 - AliCRTConstants::Instance()->Depth()))/2;
333 ptubs[3] = 180 + kRaddeg*TMath::ASin(1070/ptubs[0]);
334 ptubs[4] = 180 - kRaddeg*TMath::ASin(1070/ptubs[0]);
335 gMC->Gsvolu("CMO6", "TUBS", idtmed[1123], ptubs, 5);
336 gMC->Gspos("CMO6", 1, "CMO1", px24X, ptubs[2] - AliCRTConstants::Instance()->Depth()/2, px24Z, idrotm[2003], "MANY");
338 // Around the PX24, the closed section. OK
340 ptube[0] = px24radius + concreteWidth;
341 ptube[1] = ptube[0] + 1000;
342 ptube[2] = (5150 - 2300)/2;
343 gMC->Gsvolu("CMO7", "TUBE", idtmed[1123], ptube, 3);
344 gMC->Gspos("CMO7", 1, "CMO1", px24X, AliCRTConstants::Instance()->Depth()/2 - ptube[2], px24Z, idrotm[2003], "MANY");
347 ptube[0] = pm25radius + concreteWidth;
348 ptube[1] = ptube[0] + 400;
349 ptube[2] = AliCRTConstants::Instance()->Depth()/2;
350 gMC->Gsvolu("CMO8", "TUBE", idtmed[1123], ptube, 3);
351 gMC->Gspos("CMO8", 1, "CMO1", pm25X, 0, pm25Z, idrotm[2003], "MANY");
352 // On both sides of the PM25 along the HALL.
353 pbox[0] = (2100 + pm25radius - 1170)/2;
354 pbox[1] = AliCRTConstants::Instance()->Depth()/2;
355 pbox[2] = (3*px24radius - pm25radius)/2;
356 gMC->Gsvolu("CM18", "BOX", idtmed[1123], pbox, 3);
357 gMC->Gspos("CM18", 1, "CMO1", 2100, 0, pbox[2] + pm25radius, 0, "MANY");
359 pbox[2] = (1900 - pm25radius)/2;
360 gMC->Gsvolu("CM19", "BOX", idtmed[1123], pbox, 3);
361 gMC->Gspos("CM19", 1, "CMO1", 2100, 0, -pbox[2] - pm25radius, 0, "MANY");
363 // Around the PGC2. OK
364 ptube[0] = pgc2radius + concreteWidth;
365 ptube[1] = 2987.7 - 740;
366 ptube[2] = AliCRTConstants::Instance()->Depth()/2;
367 gMC->Gsvolu("CMO9", "TUBE", idtmed[1123], ptube, 3);
368 gMC->Gspos("CMO9", 1, "CMO1", pgc2X, 0, pgc2Z, idrotm[2003], "MANY");
370 // On both sides of the PGC2.OK
371 pbox[0] = (AliCRTConstants::Instance()->Depth()*TMath::Tan(67.5*kDegrad) - 1100 - 375)/2;
372 pbox[1] = AliCRTConstants::Instance()->Depth()/2;
373 pbox[2] = pgc2radius + concreteWidth;
374 gMC->Gsvolu("CM10", "BOX", idtmed[1123], pbox, 3);
375 gMC->Gspos("CM10", 1, "CMO1", AliCRTConstants::Instance()->Depth()*TMath::Tan(67.5*kDegrad) - pbox[0], 0, pgc2Z, 0, "MANY");
376 gMC->Gspos("CM10", 2, "CMO1", -AliCRTConstants::Instance()->Depth()*TMath::Tan(67.5*kDegrad) + pbox[0], 0, pgc2Z, 0, "MANY");
378 // big block of molasse behind the PX24. OK
379 pbox[0] = AliCRTConstants::Instance()->Depth()*TMath::Tan(67.5*kDegrad);
380 pbox[1] = AliCRTConstants::Instance()->Depth()/2;
381 pbox[2] = (pbox[0] - (2300 + 1150 + 100))/2;
382 gMC->Gsvolu("CM12", "BOX", idtmed[1123], pbox, 3);
383 gMC->Gspos("CM12", 1, "CMO1", px24X, 0, px24Z + px24radius + concreteWidth + pbox[2], 0, "MANY");
385 // big block of molasse in the opposite side of the PM25. OK
386 pbox[0] = (AliCRTConstants::Instance()->Depth()*TMath::Tan(67.5*kDegrad) - 1150)/2;
387 pbox[1] = AliCRTConstants::Instance()->Depth()/2;
388 pbox[2] = (1900 + 2300 + 1150)/2;
389 gMC->Gsvolu("CM13", "BOX", idtmed[1123], pbox, 3);
390 gMC->Gspos("CM13", 1, "CMO1", -1150 - pbox[0], 0, pbox[2] - 1900, 0, "MANY");
392 // big block of molasse behind the PM25. OK
393 pbox[0] = (AliCRTConstants::Instance()->Depth()*TMath::Tan(67.5*kDegrad) - (2100 + 910/2 + 100))/2;
394 pbox[1] = AliCRTConstants::Instance()->Depth()/2;
395 pbox[2] = (1900 + 2300 + 1150)/2;
396 gMC->Gsvolu("CM14", "BOX", idtmed[1123], pbox, 3);
397 gMC->Gspos("CM14", 1, "CMO1", pm25X + pm25radius + concreteWidth + pbox[0], 0, pbox[2] - 1900, 0, "MANY");
399 // big block of molasse behind the PGC2. OK
400 pbox[0] = AliCRTConstants::Instance()->Depth()*TMath::Tan(67.5*kDegrad);
401 pbox[1] = AliCRTConstants::Instance()->Depth()/2;
402 pbox[2] = (pbox[0] - (2987.7 + 1900 + 1100/2 + 100))/2;
403 gMC->Gsvolu("CM15", "BOX", idtmed[1123], pbox, 3);
404 gMC->Gspos("CM15", 1, "CMO1", 0, 0, -pbox[0] + pbox[2], 0, "MANY");
406 gMC->Gspos("CMO1",1,"CRT",0,AliCRTConstants::Instance()->Depth()/2,0,0,"MANY");
410 //_____________________________________________________________________________
411 void AliCRTv1::CreateShafts()
416 Int_t idrotm[2499]; // The rotation matrix.
417 Int_t* idtmed = fIdtmed->GetArray() - 1099 ;
422 AliMatrix(idrotm[2001], 0, 0, 90, 0, 90, 90);
425 // Create a bing cilinder to hold the main structures in the shaft.
426 // All the structures relative to the shaft will be put into
428 // This shaft is composed by an open tube down in the hall, and
429 // a cilinder avobe the level of the ceiling.
431 ptube[0] = 0; // inner radius
432 ptube[1] = 1250; // outer radius
433 ptube[2] = 5150/2; // Half lenght in Z
434 gMC->Gsvolu("CSF1", "TUBE", idtmed[1114], ptube, 3);
437 // The open section of the PX24
438 ptubs[0] = 1150; // Inner radius
439 ptubs[1] = 1250; // Outer radius
440 ptubs[2] = 1300; // Half length
441 ptubs[3] = 180 + kRaddeg*TMath::ASin(1070/ptubs[0]); // starting angle
442 ptubs[4] = 180 - kRaddeg*TMath::ASin(1070/ptubs[0]);
443 gMC->Gsvolu("CSF2", "TUBS", idtmed[1116], ptubs, 5);
444 gMC->Gspos("CSF2", 1, "CSF1", 0, 0, -ptube[2] + ptubs[2], 0, "MANY");
446 // The other part of the shaft.
447 ptube[0] = ptubs[0]; // Inner radius
448 ptube[1] = ptubs[1]; // Outer radius
449 ptube[2] = 5150/2 - ptubs[2]; // Half lenght
450 gMC->Gsvolu("CSF3", "TUBE", idtmed[1116], ptube, 3);
451 gMC->Gspos("CSF3", 1, "CSF1", 0, 0, 5150/2 - ptube[2], 0, "MANY");
454 // Concrete walls along the shaft (next to the elevator.)
455 pbox[0] = 480/2; // Half length in X
456 pbox[1] = 120/2; // Half length in Y
457 pbox[2] = 5150/2; // Half length in Z
458 gMC->Gsvolu("CSW1", "BOX", idtmed[1116], pbox, 3);
459 gMC->Gspos("CSW1", 1, "CSF1", 820+pbox[0], 150+pbox[1], 0, 0, "MANY");
460 gMC->Gspos("CSW1", 2, "CSF1", 820+pbox[0], -300-pbox[1], 0, 0, "MANY");
463 pbox[0] = 120/2; // Half length in X
464 pbox[1] = 750/2; // Half length in Y
465 pbox[2] = 5150/2; // Half length in Z
466 gMC->Gsvolu("CSW2", "BOX", idtmed[1116], pbox, 3);
467 gMC->Gspos("CSW2", 1, "CSF1", 820-60, 150+pbox[1], 0, 0, "MANY");
470 pbox[0] = 120/2; // Half length in X
471 pbox[1] = 600/2; // Half lenght in Y
472 pbox[2] = 5150/2; // Half length in Z
473 gMC->Gsvolu("CSW3", "BOX", idtmed[1116], pbox, 3);
474 gMC->Gspos("CSW3", 1, "CSF1", 820-60, -300-pbox[1], 0, 0, "MANY");
476 // Material below the counting rooms.
480 gMC->Gsvolu("CSW4", "BOX", idtmed[1116], pbox, 3);
481 gMC->Gspos("CSW4",1,"CSF1",2300/2-pbox[0],0,3000-5150/2-pbox[2], 0, "MANY");
487 gMC->Gsvolu("CSW5", "BOX", idtmed[1116], pbox, 3);
488 gMC->Gspos("CSW5", 1, "CSF1", 0, 0, 3000-5150/2-130, 0, "MANY");
490 // The end of the support for the shielding plug.
494 gMC->Gsvolu("CSW6", "BOX", idtmed[1116], pbox, 3);
495 gMC->Gspos("CSW6",1,"CSF1",-1400/2-pbox[0],0,3000-5150/2-pbox[2],0,"MANY");
501 gMC->Gsvolu("CSW7", "BOX", idtmed[1116], pbox, 3);
502 gMC->Gspos("CSW7",1,"CSF1",-1400/2-170-pbox[0],0,3000-5150/2+pbox[2],0,"MANY");
504 // Material close to the pipe.
508 gMC->Gsvolu("CSW8", "BOX", idtmed[1116], pbox, 3);
509 gMC->Gspos("CSW8",1,"CSF1",-2300/2+pbox[0],0,2500-5150/2,0,"MANY");
511 // Now put the shaft into the mother volume.
512 gMC->Gspos("CSF1", 1, "CRT", 0, AliCRTConstants::Instance()->Depth() - 5150/2, 2300, idrotm[2001], "MANY");
516 ptube[1] = ptube[0] + 100;
517 ptube[2] = (5150 - 1166)/2;
518 gMC->Gsvolu("CSF4", "TUBE", idtmed[1116], ptube, 3);
519 gMC->Gspos("CSF4", 1, "CRT", 2100, AliCRTConstants::Instance()->Depth()-ptube[2], 0, idrotm[2001], "MANY");
523 ptube[1] = ptube[0] + 100;
524 ptube[2] = (5150 - 690)/2;
525 gMC->Gsvolu("CSF5", "TUBE", idtmed[1116], ptube, 3);
526 gMC->Gspos("CSF5", 1, "CRT", -375, AliCRTConstants::Instance()->Depth()-ptube[2], -1900 - 2987.7, idrotm[2001], "MANY");
530 //_____________________________________________________________________________
531 void AliCRTv1::DrawDetector() const
534 // Draw a shaded view of the L3 magnet
536 Info("DrawDetector", "Drawing CRT module");
538 gMC->Gsatt("*", "seen", -1);
539 gMC->Gsatt("ALIC", "seen", 0);
541 gMC->Gsatt("L3MO","seen",0); // L3 Magnet, Mother
542 gMC->Gsatt("L3CO","seen",1); // Coils
543 gMC->Gsatt("L3C1","seen",1); // Coils
544 gMC->Gsatt("L3YO","seen",1); // Yoke
545 gMC->Gsatt("L3DO","seen",0); // return Yoke (DOOR)
546 gMC->Gsatt("L3FR","seen",1); // DOOR
547 gMC->Gsatt("L3IR","seen",0); // Inner layer
548 gMC->Gsatt("L3O1","seen",1); // Door opening
549 gMC->Gsatt("L3O2","seen",1); // Door opening
551 gMC->Gsatt("CRT", "seen",0); // CRT mother volume.
553 gMC->Gsatt("CMO1","seen",0); // Molasse.
555 gMC->Gsatt("CSF1","seen",0); // PX24 access shaft.
556 gMC->Gsatt("CSF2", "seen", 1); // PX24 open section
557 gMC->Gsatt("CSF3", "seen", 1); // PX24, upper part.
558 gMC->Gsatt("CSW1", "seen", 1);
559 gMC->Gsatt("CSW2", "seen", 1);
560 gMC->Gsatt("CSW3", "seen", 1);
561 gMC->Gsatt("CSW4", "seen", 1);
562 gMC->Gsatt("CSW5", "seen", 1);
563 gMC->Gsatt("CSW6", "seen", 1);
564 gMC->Gsatt("CSW7", "seen", 1);
565 gMC->Gsatt("CSW8", "seen", 1);
567 gMC->Gsatt("CSF4","seen",1); // PM25 access shaft.
568 gMC->Gsatt("CSF5","seen",1); // PGC2 access shaft.
570 gMC->Gsatt("CRT", "seen", 0); // CRT Mother volume.
571 gMC->Gsatt("CRT1", "seen", 0); // ?
572 gMC->Gsatt("CRT2", "seen", 0); // Module air box
573 gMC->Gsatt("CRT3", "seen", 1); // Scintillators
574 gMC->Gsatt("CRT3", "colo", 2); // Scintillators
575 gMC->Gsatt("CRT4", "seen", 1); // Aluminium frame (long bars)
576 gMC->Gsatt("CRT4", "colo", 3); //
577 gMC->Gsatt("CRT5", "seen", 1); // Aluminium frame (short bars)
578 gMC->Gsatt("CRT5", "colo", 3); //
579 gMC->Gsatt("CRT6", "seen", 1); // Module support
580 gMC->Gsatt("CRT6", "colo", 3); //
582 gMC->Gdopt("hide", "on");
583 gMC->Gdopt("edge","off");
584 gMC->Gdopt("shad", "on");
585 gMC->Gsatt("*", "fill", 7);
586 gMC->SetClipBox("ALIC", 0, 3000, -3000, 3000, -6000, 6000);
588 gMC->Gdraw("alic", 70, 30, 0, 10, 9.5, .001, .001);
589 gMC->Gdhead(1111, "View of CRT(ACORDE)");
590 gMC->Gdman(18, 4, "MAN");
594 //_____________________________________________________________________________
595 void AliCRTv1::Init()
598 // Initialise L3 magnet after it has been built
601 if(AliLog::GetGlobalDebugLevel()>0) {
602 printf("\n%s: ",ClassName());
603 for(i=0;i<35;i++) printf("*");
604 printf(" CRTv1_INIT ");
605 for(i=0;i<35;i++) printf("*");
606 printf("\n%s: ",ClassName());
608 // Here the CRTv1 initialisation code (if any!)
609 for(i=0;i<80;i++) printf("*");
615 //____________________________________________________________________________
616 void AliCRTv1::StepManager()
619 // Called for every step in the Cosmic Ray Trigger
626 static Float_t hits[14];
627 static Float_t eloss;
629 if ( gMC->TrackPid() != kMuonMinus ) return;
631 // Only charged tracks
632 if ( !(gMC->TrackCharge()) ) return;
634 if (gMC->IsNewTrack()) {
635 // Reset the deposited energy
639 // Add th energy loss in each step.
640 eloss += gMC->Edep();
642 if ( ( (strcmp(gMC->CurrentVolName(),"CRT4") == 0) || // Magnet
643 (strcmp(gMC->CurrentVolName(),"CRT5") == 0) || // CRT
644 (strcmp(gMC->CurrentVolName(),"CRT6") == 0) || // Magnet Doors
645 (strcmp(gMC->CurrentVolName(),"CSF2") == 0) || // PX24
646 (strcmp(gMC->CurrentVolName(),"CSF3") == 0) || // PM25
647 (strcmp(gMC->CurrentVolName(),"CSF4") == 0) ) // PGC2
648 && gMC->IsTrackEntering() ) {
651 if ( (strcmp(gMC->CurrentVolName(),"CRT3") == 0)
652 && gMC->IsTrackEntering() ) {
654 // Get current particle id(ipart),track position (pos) and momentum (mom)
655 gMC->TrackPosition(pos);
656 gMC->TrackMomentum(mom);
657 ipart = gMC->TrackPid();
659 ipart = gMC->TrackPid();
660 hits[0] = (Float_t)ipart; // (fId)
662 hits[1] = pos[0]; // X coordinate (fX)
663 hits[2] = pos[1]; // Y coordinate (fY)
664 hits[3] = pos[2]; // Z coordinate (fZ)
665 hits[4] = mom[0]; // Px (fpxug)
666 hits[5] = mom[1]; // Py (fpyug)
667 hits[6] = mom[2]; // Pz (fpzug)
668 hits[7] = eloss; // Energy loss
670 Info("StepManager", "X=%f", pos[0]);
673 if ( (strcmp(gMC->CurrentVolName(),"CRT4")==0) ) vol[0] = 1; // Magnet
674 else if ( (strcmp(gMC->CurrentVolName(),"CRT5")==0) ) vol[0] = 2; // CRT
675 else if ( (strcmp(gMC->CurrentVolName(),"CRT6")==0) ) vol[0] = 3; // Doors
676 else if ( (strcmp(gMC->CurrentVolName(),"CSF2")==0) ) vol[0] = 4; // PX24
677 else if ( (strcmp(gMC->CurrentVolName(),"CSF3")==0) ) vol[0] = 5; // PM25
678 else if ( (strcmp(gMC->CurrentVolName(),"CSF4")==0) ) vol[0] = 6; // PGC2
679 else vol[0] = -1;// ?
680 //vol[0] = gMC->GetMedium(); //layer(flay)
681 Info("StepManager", "Adding hit");
682 AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(),vol, hits);
683 Info("StepManager", "Hit added");
684 // Reset the deposited energy only when you reach the Magnet
685 if ( (strcmp(gMC->CurrentVolName(),"CRT4")==0) ) eloss = 0;
693 //_____________________________________________________________________________
694 void AliCRTv1::AddHit(Int_t track, Int_t *vol, Float_t *hits)
699 TClonesArray &lhits = *fHits;
700 new(lhits[fNhits++]) AliCRThit(fIshunt,track,vol,hits);