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 //_________________________________________________________________________
19 // Implementation version v0 of PHOS Manager class
20 // Layout EMC + PPSD has name GPS2
21 // An object of this class does not produce hits nor digits
22 // It is the one to use if you do not want to produce outputs in TREEH or TREED
24 //*-- Author: Yves Schutz (SUBATECH)
27 // --- ROOT system ---
34 // --- Standard library ---
39 #include <strstream.h>
41 // --- AliRoot header files ---
43 #include "AliPHOSv0.h"
49 //____________________________________________________________________________
50 AliPHOSv0::AliPHOSv0(const char *name, const char *title):
53 // ctor : title is used to identify the layout
54 // GPS2 = 5 modules (EMC + PPSD)
56 // gets an instance of the geometry parameters class
58 if (strcmp(GetTitle(),"") != 0 )
59 fGeom = AliPHOSGeometry::GetInstance(GetTitle(), "") ;
63 //____________________________________________________________________________
64 void AliPHOSv0::BuildGeometry()
66 // Build the PHOS geometry for the ROOT display
70 PHOS in ALICE displayed by root
76 <IMG Align=BOTTOM ALT="All Views" SRC="../images/AliPHOSv0AllViews.gif">
81 <IMG Align=BOTTOM ALT="Front View" SRC="../images/AliPHOSv0FrontView.gif">
86 <IMG Align=BOTTOM ALT="3D View 1" SRC="../images/AliPHOSv03DView1.gif">
91 <IMG Align=BOTTOM ALT="3D View 2" SRC="../images/AliPHOSv03DView2.gif">
97 this->BuildGeometryforPHOS() ;
98 if ( ( strcmp(fGeom->GetName(), "GPS2" ) == 0 ) )
99 this->BuildGeometryforPPSD() ;
101 cout << "AliPHOSv0::BuildGeometry : no charged particle identification system installed" << endl;
105 //____________________________________________________________________________
106 void AliPHOSv0:: BuildGeometryforPHOS(void)
108 // Build the PHOS-EMC geometry for the ROOT display
110 const Int_t kColorPHOS = kRed ;
111 const Int_t kColorXTAL = kBlue ;
113 Double_t const kRADDEG = 180.0 / kPI ;
115 new TBRIK( "OuterBox", "PHOS box", "void", fGeom->GetOuterBoxSize(0)/2,
116 fGeom->GetOuterBoxSize(1)/2,
117 fGeom->GetOuterBoxSize(2)/2 );
119 // Textolit Wall box, position inside PHOS
121 new TBRIK( "TextolitBox", "PHOS Textolit box ", "void", fGeom->GetTextolitBoxSize(0)/2,
122 fGeom->GetTextolitBoxSize(1)/2,
123 fGeom->GetTextolitBoxSize(2)/2);
125 // Polystyrene Foam Plate
127 new TBRIK( "UpperFoamPlate", "PHOS Upper foam plate", "void", fGeom->GetTextolitBoxSize(0)/2,
128 fGeom->GetSecondUpperPlateThickness()/2,
129 fGeom->GetTextolitBoxSize(2)/2 ) ;
133 new TBRIK( "AirFilledBox", "PHOS air filled box", "void", fGeom->GetAirFilledBoxSize(0)/2,
134 fGeom->GetAirFilledBoxSize(1)/2,
135 fGeom->GetAirFilledBoxSize(2)/2 );
139 Float_t xtlX = fGeom->GetCrystalSize(0) ;
140 Float_t xtlY = fGeom->GetCrystalSize(1) ;
141 Float_t xtlZ = fGeom->GetCrystalSize(2) ;
143 Float_t xl = fGeom->GetNPhi() * ( xtlX + 2 * fGeom->GetGapBetweenCrystals() ) / 2.0 + fGeom->GetModuleBoxThickness() ;
144 Float_t yl = ( xtlY + fGeom->GetCrystalSupportHeight() + fGeom->GetCrystalWrapThickness() + fGeom->GetCrystalHolderThickness() ) / 2.0
145 + fGeom->GetModuleBoxThickness() / 2.0 ;
146 Float_t zl = fGeom->GetNZ() * ( xtlZ + 2 * fGeom->GetGapBetweenCrystals() ) / 2.0 + fGeom->GetModuleBoxThickness() ;
148 new TBRIK( "CrystalsBox", "PHOS crystals box", "void", xl, yl, zl ) ;
150 // position PHOS into ALICE
152 Float_t r = fGeom->GetIPtoOuterCoverDistance() + fGeom->GetOuterBoxSize(1) / 2.0 ;
154 Float_t pphi = TMath::ATan( fGeom->GetOuterBoxSize(0) / ( 2.0 * fGeom->GetIPtoOuterCoverDistance() ) ) ;
156 TNode * top = gAlice->GetGeometry()->GetNode("alice") ;
158 char * nodename = new char[20] ;
159 char * rotname = new char[20] ;
161 for( Int_t i = 1; i <= fGeom->GetNModules(); i++ ) {
162 Float_t angle = pphi * 2 * ( i - fGeom->GetNModules() / 2.0 - 0.5 ) ;
163 sprintf(rotname, "%s%d", "rot", number++) ;
164 new TRotMatrix(rotname, rotname, 90, angle, 90, 90 + angle, 0, 0);
166 sprintf(nodename,"%s%d", "Module", i) ;
167 Float_t x = r * TMath::Sin( angle / kRADDEG ) ;
168 Float_t y = -r * TMath::Cos( angle / kRADDEG ) ;
169 TNode * outerboxnode = new TNode(nodename, nodename, "OuterBox", x, y, 0, rotname ) ;
170 outerboxnode->SetLineColor(kColorPHOS) ;
171 fNodes->Add(outerboxnode) ;
173 // now inside the outer box the textolit box
174 y = ( fGeom->GetOuterBoxThickness(1) - fGeom->GetUpperPlateThickness() ) / 2. ;
175 sprintf(nodename,"%s%d", "TexBox", i) ;
176 TNode * textolitboxnode = new TNode(nodename, nodename, "TextolitBox", 0, y, 0) ;
177 textolitboxnode->SetLineColor(kColorPHOS) ;
178 fNodes->Add(textolitboxnode) ;
179 // upper foam plate inside outre box
181 sprintf(nodename, "%s%d", "UFPlate", i) ;
182 y = ( fGeom->GetTextolitBoxSize(1) - fGeom->GetSecondUpperPlateThickness() ) / 2.0 ;
183 TNode * upperfoamplatenode = new TNode(nodename, nodename, "UpperFoamPlate", 0, y, 0) ;
184 upperfoamplatenode->SetLineColor(kColorPHOS) ;
185 fNodes->Add(upperfoamplatenode) ;
186 // air filled box inside textolit box (not drawn)
187 textolitboxnode->cd();
188 y = ( fGeom->GetTextolitBoxSize(1) - fGeom->GetAirFilledBoxSize(1) ) / 2.0 - fGeom->GetSecondUpperPlateThickness() ;
189 sprintf(nodename, "%s%d", "AFBox", i) ;
190 TNode * airfilledboxnode = new TNode(nodename, nodename, "AirFilledBox", 0, y, 0) ;
191 fNodes->Add(airfilledboxnode) ;
192 // crystals box inside air filled box
193 airfilledboxnode->cd() ;
194 y = fGeom->GetAirFilledBoxSize(1) / 2.0 - yl
195 - ( fGeom->GetIPtoCrystalSurface() - fGeom->GetIPtoOuterCoverDistance() - fGeom->GetModuleBoxThickness()
196 - fGeom->GetUpperPlateThickness() - fGeom->GetSecondUpperPlateThickness() ) ;
197 sprintf(nodename, "%s%d", "XTBox", i) ;
198 TNode * crystalsboxnode = new TNode(nodename, nodename, "CrystalsBox", 0, y, 0) ;
199 crystalsboxnode->SetLineColor(kColorXTAL) ;
200 fNodes->Add(crystalsboxnode) ;
207 //____________________________________________________________________________
208 void AliPHOSv0:: BuildGeometryforPPSD(void)
210 // Build the PHOS-PPSD geometry for the ROOT display
214 PPSD displayed by root
217 <LI> Zoom on PPSD: Front View
220 <IMG Align=BOTTOM ALT="PPSD Front View" SRC="../images/AliPHOSv0PPSDFrontView.gif">
222 <LI> Zoom on PPSD: Perspective View
225 <IMG Align=BOTTOM ALT="PPSD Prespective View" SRC="../images/AliPHOSv0PPSDPerspectiveView.gif">
230 Double_t const kRADDEG = 180.0 / kPI ;
232 const Int_t kColorPHOS = kRed ;
233 const Int_t kColorPPSD = kGreen ;
234 const Int_t kColorGas = kBlue ;
235 const Int_t kColorAir = kYellow ;
237 // Box for a full PHOS module
239 new TBRIK( "PPSDBox", "PPSD box", "void", fGeom->GetPPSDBoxSize(0)/2,
240 fGeom->GetPPSDBoxSize(1)/2,
241 fGeom->GetPPSDBoxSize(2)/2 );
243 // Box containing one micromegas module
245 new TBRIK( "PPSDModule", "PPSD module", "void", fGeom->GetPPSDModuleSize(0)/2,
246 fGeom->GetPPSDModuleSize(1)/2,
247 fGeom->GetPPSDModuleSize(2)/2 );
250 new TBRIK ( "TopLid", "Micromegas top lid", "void", fGeom->GetPPSDModuleSize(0)/2,
251 fGeom->GetLidThickness()/2,
252 fGeom->GetPPSDModuleSize(2)/2 ) ;
253 // composite panel (top and bottom)
255 new TBRIK ( "TopPanel", "Composite top panel", "void", ( fGeom->GetPPSDModuleSize(0) - fGeom->GetMicromegasWallThickness() )/2,
256 fGeom->GetCompositeThickness()/2,
257 ( fGeom->GetPPSDModuleSize(2) - fGeom->GetMicromegasWallThickness() )/2 ) ;
259 new TBRIK ( "BottomPanel", "Composite bottom panel", "void", ( fGeom->GetPPSDModuleSize(0) - fGeom->GetMicromegasWallThickness() )/2,
260 fGeom->GetCompositeThickness()/2,
261 ( fGeom->GetPPSDModuleSize(2) - fGeom->GetMicromegasWallThickness() )/2 ) ;
262 // gas gap (conversion and avalanche)
264 new TBRIK ( "GasGap", "gas gap", "void", ( fGeom->GetPPSDModuleSize(0) - fGeom->GetMicromegasWallThickness() )/2,
265 ( fGeom->GetConversionGap() + fGeom->GetAvalancheGap() )/2,
266 ( fGeom->GetPPSDModuleSize(2) - fGeom->GetMicromegasWallThickness() )/2 ) ;
270 new TBRIK ( "Anode", "Anode", "void", ( fGeom->GetPPSDModuleSize(0) - fGeom->GetMicromegasWallThickness() )/2,
271 fGeom->GetAnodeThickness()/2,
272 ( fGeom->GetPPSDModuleSize(2) - fGeom->GetMicromegasWallThickness() )/2 ) ;
274 new TBRIK ( "Cathode", "Cathode", "void", ( fGeom->GetPPSDModuleSize(0) - fGeom->GetMicromegasWallThickness() )/2,
275 fGeom->GetCathodeThickness()/2,
276 ( fGeom->GetPPSDModuleSize(2) - fGeom->GetMicromegasWallThickness() )/2 ) ;
279 new TBRIK ( "PCBoard", "Printed Circuit", "void", ( fGeom->GetPPSDModuleSize(0) - fGeom->GetMicromegasWallThickness() )/2,
280 fGeom->GetPCThickness()/2,
281 ( fGeom->GetPPSDModuleSize(2) - fGeom->GetMicromegasWallThickness() )/2 ) ;
282 // Gap between Lead and top micromegas
284 new TBRIK ( "LeadToM", "Air Gap top", "void", fGeom->GetPPSDBoxSize(0)/2,
285 fGeom->GetMicro1ToLeadGap()/2,
286 fGeom->GetPPSDBoxSize(2)/2 ) ;
288 // Gap between Lead and bottom micromegas
290 new TBRIK ( "MToLead", "Air Gap bottom", "void", fGeom->GetPPSDBoxSize(0)/2,
291 fGeom->GetLeadToMicro2Gap()/2,
292 fGeom->GetPPSDBoxSize(2)/2 ) ;
295 new TBRIK ( "Lead", "Lead converter", "void", fGeom->GetPPSDBoxSize(0)/2,
296 fGeom->GetLeadConverterThickness()/2,
297 fGeom->GetPPSDBoxSize(2)/2 ) ;
299 // position PPSD into ALICE
301 char * nodename = new char[20] ;
302 char * rotname = new char[20] ;
304 Float_t r = fGeom->GetIPtoTopLidDistance() + fGeom->GetPPSDBoxSize(1) / 2.0 ;
306 TNode * top = gAlice->GetGeometry()->GetNode("alice") ;
308 for( Int_t i = 1; i <= fGeom->GetNModules(); i++ ) { // the number of PHOS modules
309 Float_t angle = fGeom->GetPHOSAngle(i) ;
310 sprintf(rotname, "%s%d", "rotg", number++) ;
311 new TRotMatrix(rotname, rotname, 90, angle, 90, 90 + angle, 0, 0);
313 sprintf(nodename, "%s%d", "Moduleg", i) ;
314 Float_t x = r * TMath::Sin( angle / kRADDEG ) ;
315 Float_t y = -r * TMath::Cos( angle / kRADDEG ) ;
316 TNode * ppsdboxnode = new TNode(nodename , nodename ,"PPSDBox", x, y, 0, rotname ) ;
317 ppsdboxnode->SetLineColor(kColorPPSD) ;
318 fNodes->Add(ppsdboxnode) ;
320 // inside the PPSD box:
321 // 1. fNumberOfModulesPhi x fNumberOfModulesZ top micromegas
322 x = ( fGeom->GetPPSDBoxSize(0) - fGeom->GetPPSDModuleSize(0) ) / 2. ;
324 for ( Int_t iphi = 1; iphi <= fGeom->GetNumberOfModulesPhi(); iphi++ ) { // the number of micromegas modules in phi per PHOS module
325 Float_t z = ( fGeom->GetPPSDBoxSize(2) - fGeom->GetPPSDModuleSize(2) ) / 2. ;
327 for ( Int_t iz = 1; iz <= fGeom->GetNumberOfModulesZ(); iz++ ) { // the number of micromegas modules in z per PHOS module
328 y = ( fGeom->GetPPSDBoxSize(1) - fGeom->GetMicromegas1Thickness() ) / 2. ;
329 sprintf(nodename, "%s%d%d%d", "Mic1", i, iphi, iz) ;
330 micro1node = new TNode(nodename, nodename, "PPSDModule", x, y, z) ;
331 micro1node->SetLineColor(kColorPPSD) ;
332 fNodes->Add(micro1node) ;
333 // inside top micromegas
336 y = ( fGeom->GetMicromegas1Thickness() - fGeom->GetLidThickness() ) / 2. ;
337 sprintf(nodename, "%s%d%d%d", "Lid", i, iphi, iz) ;
338 TNode * toplidnode = new TNode(nodename, nodename, "TopLid", 0, y, 0) ;
339 toplidnode->SetLineColor(kColorPPSD) ;
340 fNodes->Add(toplidnode) ;
341 // b. composite panel
342 y = y - fGeom->GetLidThickness() / 2. - fGeom->GetCompositeThickness() / 2. ;
343 sprintf(nodename, "%s%d%d%d", "CompU", i, iphi, iz) ;
344 TNode * compupnode = new TNode(nodename, nodename, "TopPanel", 0, y, 0) ;
345 compupnode->SetLineColor(kColorPPSD) ;
346 fNodes->Add(compupnode) ;
348 y = y - fGeom->GetCompositeThickness() / 2. - fGeom->GetAnodeThickness() / 2. ;
349 sprintf(nodename, "%s%d%d%d", "Ano", i, iphi, iz) ;
350 TNode * anodenode = new TNode(nodename, nodename, "Anode", 0, y, 0) ;
351 anodenode->SetLineColor(kColorPHOS) ;
352 fNodes->Add(anodenode) ;
354 y = y - fGeom->GetAnodeThickness() / 2. - ( fGeom->GetConversionGap() + fGeom->GetAvalancheGap() ) / 2. ;
355 sprintf(nodename, "%s%d%d%d", "GGap", i, iphi, iz) ;
356 TNode * ggapnode = new TNode(nodename, nodename, "GasGap", 0, y, 0) ;
357 ggapnode->SetLineColor(kColorGas) ;
358 fNodes->Add(ggapnode) ;
360 y = y - ( fGeom->GetConversionGap() + fGeom->GetAvalancheGap() ) / 2. - fGeom->GetCathodeThickness() / 2. ;
361 sprintf(nodename, "%s%d%d%d", "Cathode", i, iphi, iz) ;
362 TNode * cathodenode = new TNode(nodename, nodename, "Cathode", 0, y, 0) ;
363 cathodenode->SetLineColor(kColorPHOS) ;
364 fNodes->Add(cathodenode) ;
365 // g. printed circuit
366 y = y - fGeom->GetCathodeThickness() / 2. - fGeom->GetPCThickness() / 2. ;
367 sprintf(nodename, "%s%d%d%d", "PC", i, iphi, iz) ;
368 TNode * pcnode = new TNode(nodename, nodename, "PCBoard", 0, y, 0) ;
369 pcnode->SetLineColor(kColorPPSD) ;
370 fNodes->Add(pcnode) ;
371 // h. composite panel
372 y = y - fGeom->GetPCThickness() / 2. - fGeom->GetCompositeThickness() / 2. ;
373 sprintf(nodename, "%s%d%d%d", "CompDown", i, iphi, iz) ;
374 TNode * compdownnode = new TNode(nodename, nodename, "BottomPanel", 0, y, 0) ;
375 compdownnode->SetLineColor(kColorPPSD) ;
376 fNodes->Add(compdownnode) ;
377 z = z - fGeom->GetPPSDModuleSize(2) ;
379 } // end of Z module loop
380 x = x - fGeom->GetPPSDModuleSize(0) ;
382 } // end of phi module loop
386 y = ( fGeom->GetPPSDBoxSize(1) - 2 * fGeom->GetMicromegas1Thickness() - fGeom->GetMicro1ToLeadGap() ) / 2. ;
387 sprintf(nodename, "%s%d", "GapUp", i) ;
388 TNode * gapupnode = new TNode(nodename, nodename, "LeadToM", 0, y, 0) ;
389 gapupnode->SetLineColor(kColorAir) ;
390 fNodes->Add(gapupnode) ;
392 y = y - fGeom->GetMicro1ToLeadGap() / 2. - fGeom->GetLeadConverterThickness() / 2. ;
393 sprintf(nodename, "%s%d", "LeadC", i) ;
394 TNode * leadcnode = new TNode(nodename, nodename, "Lead", 0, y, 0) ;
395 leadcnode->SetLineColor(kColorPPSD) ;
396 fNodes->Add(leadcnode) ;
398 y = y - fGeom->GetLeadConverterThickness() / 2. - fGeom->GetLeadToMicro2Gap() / 2. ;
399 sprintf(nodename, "%s%d", "GapDown", i) ;
400 TNode * gapdownnode = new TNode(nodename, nodename, "MToLead", 0, y, 0) ;
401 gapdownnode->SetLineColor(kColorAir) ;
402 fNodes->Add(gapdownnode) ;
403 // 5. fNumberOfModulesPhi x fNumberOfModulesZ bottom micromegas
404 x = ( fGeom->GetPPSDBoxSize(0) - fGeom->GetPPSDModuleSize(0) ) / 2. - fGeom->GetPhiDisplacement() ;
406 for ( Int_t iphi = 1; iphi <= fGeom->GetNumberOfModulesPhi(); iphi++ ) {
407 Float_t z = ( fGeom->GetPPSDBoxSize(2) - fGeom->GetPPSDModuleSize(2) ) / 2. - fGeom->GetZDisplacement() ;;
409 for ( Int_t iz = 1; iz <= fGeom->GetNumberOfModulesZ(); iz++ ) {
410 y = - ( fGeom->GetPPSDBoxSize(1) - fGeom->GetMicromegas2Thickness() ) / 2. ;
411 sprintf(nodename, "%s%d%d%d", "Mic2", i, iphi, iz) ;
412 micro2node = new TNode(nodename, nodename, "PPSDModule", x, y, z) ;
413 micro2node->SetLineColor(kColorPPSD) ;
414 fNodes->Add(micro2node) ;
415 // inside bottom micromegas
418 y = ( fGeom->GetMicromegas2Thickness() - fGeom->GetLidThickness() ) / 2. ;
419 sprintf(nodename, "%s%d", "Lidb", i) ;
420 TNode * toplidbnode = new TNode(nodename, nodename, "TopLid", 0, y, 0) ;
421 toplidbnode->SetLineColor(kColorPPSD) ;
422 fNodes->Add(toplidbnode) ;
423 // b. composite panel
424 y = y - fGeom->GetLidThickness() / 2. - fGeom->GetCompositeThickness() / 2. ;
425 sprintf(nodename, "%s%d", "CompUb", i) ;
426 TNode * compupbnode = new TNode(nodename, nodename, "TopPanel", 0, y, 0) ;
427 compupbnode->SetLineColor(kColorPPSD) ;
428 fNodes->Add(compupbnode) ;
430 y = y - fGeom->GetCompositeThickness() / 2. - fGeom->GetAnodeThickness() / 2. ;
431 sprintf(nodename, "%s%d", "Anob", i) ;
432 TNode * anodebnode = new TNode(nodename, nodename, "Anode", 0, y, 0) ;
433 anodebnode->SetLineColor(kColorPPSD) ;
434 fNodes->Add(anodebnode) ;
436 y = y - fGeom->GetAnodeThickness() / 2. - ( fGeom->GetConversionGap() + fGeom->GetAvalancheGap() ) / 2. ;
437 sprintf(nodename, "%s%d", "GGapb", i) ;
438 TNode * ggapbnode = new TNode(nodename, nodename, "GasGap", 0, y, 0) ;
439 ggapbnode->SetLineColor(kColorGas) ;
440 fNodes->Add(ggapbnode) ;
442 y = y - ( fGeom->GetConversionGap() + fGeom->GetAvalancheGap() ) / 2. - fGeom->GetCathodeThickness() / 2. ;
443 sprintf(nodename, "%s%d", "Cathodeb", i) ;
444 TNode * cathodebnode = new TNode(nodename, nodename, "Cathode", 0, y, 0) ;
445 cathodebnode->SetLineColor(kColorPPSD) ;
446 fNodes->Add(cathodebnode) ;
447 // g. printed circuit
448 y = y - fGeom->GetCathodeThickness() / 2. - fGeom->GetPCThickness() / 2. ;
449 sprintf(nodename, "%s%d", "PCb", i) ;
450 TNode * pcbnode = new TNode(nodename, nodename, "PCBoard", 0, y, 0) ;
451 pcbnode->SetLineColor(kColorPPSD) ;
452 fNodes->Add(pcbnode) ;
454 y = y - fGeom->GetPCThickness() / 2. - fGeom->GetCompositeThickness() / 2. ;
455 sprintf(nodename, "%s%d", "CompDownb", i) ;
456 TNode * compdownbnode = new TNode(nodename, nodename, "BottomPanel", 0, y, 0) ;
457 compdownbnode->SetLineColor(kColorPPSD) ;
458 fNodes->Add(compdownbnode) ;
459 z = z - fGeom->GetPPSDModuleSize(2) ;
461 } // end of Z module loop
462 x = x - fGeom->GetPPSDModuleSize(0) ;
464 } // end of phi module loop
473 //____________________________________________________________________________
474 void AliPHOSv0::CreateGeometry()
476 // Create the PHOS geometry for Geant
478 AliPHOSv0 *phostmp = (AliPHOSv0*)gAlice->GetModule("PHOS") ;
480 if ( phostmp == NULL ) {
482 fprintf(stderr, "PHOS detector not found!\n") ;
486 // Get pointer to the array containing media indeces
487 Int_t *idtmed = fIdtmed->GetArray() - 699 ;
490 bigbox[0] = fGeom->GetOuterBoxSize(0) / 2.0 ;
491 bigbox[1] = ( fGeom->GetOuterBoxSize(1) + fGeom->GetPPSDBoxSize(1) ) / 2.0 ;
492 bigbox[2] = fGeom->GetOuterBoxSize(2) / 2.0 ;
494 gMC->Gsvolu("PHOS", "BOX ", idtmed[798], bigbox, 3) ;
496 this->CreateGeometryforPHOS() ;
497 if ( strcmp( fGeom->GetName(), "GPS2") == 0 )
498 this->CreateGeometryforPPSD() ;
500 cout << "AliPHOSv0::CreateGeometry : no charged particle identification system installed" << endl;
502 // --- Position PHOS mdules in ALICE setup ---
505 Double_t const kRADDEG = 180.0 / kPI ;
507 for( Int_t i = 1; i <= fGeom->GetNModules(); i++ ) {
509 Float_t angle = fGeom->GetPHOSAngle(i) ;
510 AliMatrix(idrotm[i-1], 90.0, angle, 90.0, 90.0+angle, 0.0, 0.0) ;
512 Float_t r = fGeom->GetIPtoOuterCoverDistance() + ( fGeom->GetOuterBoxSize(1) + fGeom->GetPPSDBoxSize(1) ) / 2.0 ;
514 Float_t xP1 = r * TMath::Sin( angle / kRADDEG ) ;
515 Float_t yP1 = -r * TMath::Cos( angle / kRADDEG ) ;
517 gMC->Gspos("PHOS", i, "ALIC", xP1, yP1, 0.0, idrotm[i-1], "ONLY") ;
523 //____________________________________________________________________________
524 void AliPHOSv0::CreateGeometryforPHOS()
526 // Create the PHOS-EMC geometry for GEANT
530 Geant3 geometry tree of PHOS-EMC in ALICE
533 <IMG Align=BOTTOM ALT="EMC geant tree" SRC="../images/EMCinAlice.gif">
538 // Get pointer to the array containing media indexes
539 Int_t *idtmed = fIdtmed->GetArray() - 699 ;
542 // --- Define PHOS box volume, fPUFPill with thermo insulating foam ---
543 // --- Foam Thermo Insulating outer cover dimensions ---
544 // --- Put it in bigbox = PHOS
547 dphos[0] = fGeom->GetOuterBoxSize(0) / 2.0 ;
548 dphos[1] = fGeom->GetOuterBoxSize(1) / 2.0 ;
549 dphos[2] = fGeom->GetOuterBoxSize(2) / 2.0 ;
551 gMC->Gsvolu("EMCA", "BOX ", idtmed[706], dphos, 3) ;
553 Float_t yO = - fGeom->GetPPSDBoxSize(1) / 2.0 ;
555 gMC->Gspos("EMCA", 1, "PHOS", 0.0, yO, 0.0, 0, "ONLY") ;
558 // --- Define Textolit Wall box, position inside EMCA ---
559 // --- Textolit Wall box dimentions ---
563 dptxw[0] = fGeom->GetTextolitBoxSize(0) / 2.0 ;
564 dptxw[1] = fGeom->GetTextolitBoxSize(1) / 2.0 ;
565 dptxw[2] = fGeom->GetTextolitBoxSize(2) / 2.0 ;
567 gMC->Gsvolu("PTXW", "BOX ", idtmed[707], dptxw, 3);
569 yO = ( fGeom->GetOuterBoxThickness(1) - fGeom->GetUpperPlateThickness() ) / 2. ;
571 gMC->Gspos("PTXW", 1, "EMCA", 0.0, yO, 0.0, 0, "ONLY") ;
574 // --- Define Upper Polystyrene Foam Plate, place inside PTXW ---
575 // --- immediately below Foam Thermo Insulation Upper plate ---
577 // --- Upper Polystyrene Foam plate thickness ---
580 dpufp[0] = fGeom->GetTextolitBoxSize(0) / 2.0 ;
581 dpufp[1] = fGeom->GetSecondUpperPlateThickness() / 2. ;
582 dpufp[2] = fGeom->GetTextolitBoxSize(2) /2.0 ;
584 gMC->Gsvolu("PUFP", "BOX ", idtmed[703], dpufp, 3) ;
586 yO = ( fGeom->GetTextolitBoxSize(1) - fGeom->GetSecondUpperPlateThickness() ) / 2.0 ;
588 gMC->Gspos("PUFP", 1, "PTXW", 0.0, yO, 0.0, 0, "ONLY") ;
591 // --- Define air-filled box, place inside PTXW ---
592 // --- Inner AIR volume dimensions ---
596 dpair[0] = fGeom->GetAirFilledBoxSize(0) / 2.0 ;
597 dpair[1] = fGeom->GetAirFilledBoxSize(1) / 2.0 ;
598 dpair[2] = fGeom->GetAirFilledBoxSize(2) / 2.0 ;
600 gMC->Gsvolu("PAIR", "BOX ", idtmed[798], dpair, 3) ;
602 yO = ( fGeom->GetTextolitBoxSize(1) - fGeom->GetAirFilledBoxSize(1) ) / 2.0 - fGeom->GetSecondUpperPlateThickness() ;
604 gMC->Gspos("PAIR", 1, "PTXW", 0.0, yO, 0.0, 0, "ONLY") ;
606 // --- Dimensions of PbWO4 crystal ---
608 Float_t xtlX = fGeom->GetCrystalSize(0) ;
609 Float_t xtlY = fGeom->GetCrystalSize(1) ;
610 Float_t xtlZ = fGeom->GetCrystalSize(2) ;
613 dptcb[0] = fGeom->GetNPhi() * ( xtlX + 2 * fGeom->GetGapBetweenCrystals() ) / 2.0 + fGeom->GetModuleBoxThickness() ;
614 dptcb[1] = ( xtlY + fGeom->GetCrystalSupportHeight() + fGeom->GetCrystalWrapThickness() + fGeom->GetCrystalHolderThickness() ) / 2.0
615 + fGeom->GetModuleBoxThickness() / 2.0 ;
616 dptcb[2] = fGeom->GetNZ() * ( xtlZ + 2 * fGeom->GetGapBetweenCrystals() ) / 2.0 + fGeom->GetModuleBoxThickness() ;
618 gMC->Gsvolu("PTCB", "BOX ", idtmed[706], dptcb, 3) ;
620 yO = fGeom->GetAirFilledBoxSize(1) / 2.0 - dptcb[1]
621 - ( fGeom->GetIPtoCrystalSurface() - fGeom->GetIPtoOuterCoverDistance() - fGeom->GetModuleBoxThickness()
622 - fGeom->GetUpperPlateThickness() - fGeom->GetSecondUpperPlateThickness() ) ;
624 gMC->Gspos("PTCB", 1, "PAIR", 0.0, yO, 0.0, 0, "ONLY") ;
627 // --- Define Crystal BLock filled with air, position it inside PTCB ---
630 dpcbl[0] = fGeom->GetNPhi() * ( xtlX + 2 * fGeom->GetGapBetweenCrystals() ) / 2.0 ;
631 dpcbl[1] = ( xtlY + fGeom->GetCrystalSupportHeight() + fGeom->GetCrystalWrapThickness() + fGeom->GetCrystalHolderThickness() ) / 2.0 ;
632 dpcbl[2] = fGeom->GetNZ() * ( xtlZ + 2 * fGeom->GetGapBetweenCrystals() ) / 2.0 ;
634 gMC->Gsvolu("PCBL", "BOX ", idtmed[798], dpcbl, 3) ;
636 // --- Divide PCBL in X (phi) and Z directions --
637 gMC->Gsdvn("PROW", "PCBL", Int_t (fGeom->GetNPhi()), 1) ;
638 gMC->Gsdvn("PCEL", "PROW", Int_t (fGeom->GetNZ()), 3) ;
640 yO = -fGeom->GetModuleBoxThickness() / 2.0 ;
642 gMC->Gspos("PCBL", 1, "PTCB", 0.0, yO, 0.0, 0, "ONLY") ;
645 // --- Define STeel (actually, it's titanium) Cover volume, place inside PCEL
648 dpstc[0] = ( xtlX + 2 * fGeom->GetCrystalWrapThickness() ) / 2.0 ;
649 dpstc[1] = ( xtlY + fGeom->GetCrystalSupportHeight() + fGeom->GetCrystalWrapThickness() + fGeom->GetCrystalHolderThickness() ) / 2.0 ;
650 dpstc[2] = ( xtlZ + 2 * fGeom->GetCrystalWrapThickness() + 2 * fGeom->GetCrystalHolderThickness() ) / 2.0 ;
652 gMC->Gsvolu("PSTC", "BOX ", idtmed[704], dpstc, 3) ;
654 gMC->Gspos("PSTC", 1, "PCEL", 0.0, 0.0, 0.0, 0, "ONLY") ;
657 // --- Define Tyvek volume, place inside PSTC ---
660 dppap[0] = xtlX / 2.0 + fGeom->GetCrystalWrapThickness() ;
661 dppap[1] = ( xtlY + fGeom->GetCrystalSupportHeight() + fGeom->GetCrystalWrapThickness() ) / 2.0 ;
662 dppap[2] = xtlZ / 2.0 + fGeom->GetCrystalWrapThickness() ;
664 gMC->Gsvolu("PPAP", "BOX ", idtmed[702], dppap, 3) ;
666 yO = ( xtlY + fGeom->GetCrystalSupportHeight() + fGeom->GetCrystalWrapThickness() ) / 2.0
667 - ( xtlY + fGeom->GetCrystalSupportHeight() + fGeom->GetCrystalWrapThickness() + fGeom->GetCrystalHolderThickness() ) / 2.0 ;
669 gMC->Gspos("PPAP", 1, "PSTC", 0.0, yO, 0.0, 0, "ONLY") ;
672 // --- Define PbWO4 crystal volume, place inside PPAP ---
675 dpxtl[0] = xtlX / 2.0 ;
676 dpxtl[1] = xtlY / 2.0 ;
677 dpxtl[2] = xtlZ / 2.0 ;
679 gMC->Gsvolu("PXTL", "BOX ", idtmed[699], dpxtl, 3) ;
681 yO = ( xtlY + fGeom->GetCrystalSupportHeight() + fGeom->GetCrystalWrapThickness() ) / 2.0 - xtlY / 2.0 - fGeom->GetCrystalWrapThickness() ;
683 gMC->Gspos("PXTL", 1, "PPAP", 0.0, yO, 0.0, 0, "ONLY") ;
686 // --- Define crystal support volume, place inside PPAP ---
689 dpsup[0] = xtlX / 2.0 + fGeom->GetCrystalWrapThickness() ;
690 dpsup[1] = fGeom->GetCrystalSupportHeight() / 2.0 ;
691 dpsup[2] = xtlZ / 2.0 + fGeom->GetCrystalWrapThickness() ;
693 gMC->Gsvolu("PSUP", "BOX ", idtmed[798], dpsup, 3) ;
695 yO = fGeom->GetCrystalSupportHeight() / 2.0 - ( xtlY + fGeom->GetCrystalSupportHeight() + fGeom->GetCrystalWrapThickness() ) / 2.0 ;
697 gMC->Gspos("PSUP", 1, "PPAP", 0.0, yO, 0.0, 0, "ONLY") ;
700 // --- Define PIN-diode volume and position it inside crystal support ---
701 // --- right behind PbWO4 crystal
703 // --- PIN-diode dimensions ---
707 dppin[0] = fGeom->GetPinDiodeSize(0) / 2.0 ;
708 dppin[1] = fGeom->GetPinDiodeSize(1) / 2.0 ;
709 dppin[2] = fGeom->GetPinDiodeSize(2) / 2.0 ;
711 gMC->Gsvolu("PPIN", "BOX ", idtmed[705], dppin, 3) ;
713 yO = fGeom->GetCrystalSupportHeight() / 2.0 - fGeom->GetPinDiodeSize(1) / 2.0 ;
715 gMC->Gspos("PPIN", 1, "PSUP", 0.0, yO, 0.0, 0, "ONLY") ;
718 // --- Define Upper Cooling Panel, place it on top of PTCB ---
720 // --- Upper Cooling Plate thickness ---
722 dpucp[0] = dptcb[0] ;
723 dpucp[1] = fGeom->GetUpperCoolingPlateThickness() ;
724 dpucp[2] = dptcb[2] ;
726 gMC->Gsvolu("PUCP", "BOX ", idtmed[701], dpucp,3) ;
728 yO = ( fGeom->GetAirFilledBoxSize(1) - fGeom->GetUpperCoolingPlateThickness() ) / 2.
729 - ( fGeom->GetIPtoCrystalSurface() - fGeom->GetIPtoOuterCoverDistance() - fGeom->GetModuleBoxThickness()
730 - fGeom->GetUpperPlateThickness() - fGeom->GetSecondUpperPlateThickness() - fGeom->GetUpperCoolingPlateThickness() ) ;
732 gMC->Gspos("PUCP", 1, "PAIR", 0.0, yO, 0.0, 0, "ONLY") ;
735 // --- Define Al Support Plate, position it inside PAIR ---
736 // --- right beneath PTCB ---
737 // --- Al Support Plate thickness ---
740 dpasp[0] = fGeom->GetAirFilledBoxSize(0) / 2.0 ;
741 dpasp[1] = fGeom->GetSupportPlateThickness() / 2.0 ;
742 dpasp[2] = fGeom->GetAirFilledBoxSize(2) / 2.0 ;
744 gMC->Gsvolu("PASP", "BOX ", idtmed[701], dpasp, 3) ;
746 yO = ( fGeom->GetAirFilledBoxSize(1) - fGeom->GetSupportPlateThickness() ) / 2.
747 - ( fGeom->GetIPtoCrystalSurface() - fGeom->GetIPtoOuterCoverDistance()
748 - fGeom->GetUpperPlateThickness() - fGeom->GetSecondUpperPlateThickness() + dpcbl[1] * 2 ) ;
750 gMC->Gspos("PASP", 1, "PAIR", 0.0, yO, 0.0, 0, "ONLY") ;
753 // --- Define Thermo Insulating Plate, position it inside PAIR ---
754 // --- right beneath PASP ---
755 // --- Lower Thermo Insulating Plate thickness ---
758 dptip[0] = fGeom->GetAirFilledBoxSize(0) / 2.0 ;
759 dptip[1] = fGeom->GetLowerThermoPlateThickness() / 2.0 ;
760 dptip[2] = fGeom->GetAirFilledBoxSize(2) / 2.0 ;
762 gMC->Gsvolu("PTIP", "BOX ", idtmed[706], dptip, 3) ;
764 yO = ( fGeom->GetAirFilledBoxSize(1) - fGeom->GetLowerThermoPlateThickness() ) / 2.
765 - ( fGeom->GetIPtoCrystalSurface() - fGeom->GetIPtoOuterCoverDistance() - fGeom->GetUpperPlateThickness()
766 - fGeom->GetSecondUpperPlateThickness() + dpcbl[1] * 2 + fGeom->GetSupportPlateThickness() ) ;
768 gMC->Gspos("PTIP", 1, "PAIR", 0.0, yO, 0.0, 0, "ONLY") ;
771 // --- Define Textolit Plate, position it inside PAIR ---
772 // --- right beneath PTIP ---
773 // --- Lower Textolit Plate thickness ---
776 dptxp[0] = fGeom->GetAirFilledBoxSize(0) / 2.0 ;
777 dptxp[1] = fGeom->GetLowerTextolitPlateThickness() / 2.0 ;
778 dptxp[2] = fGeom->GetAirFilledBoxSize(2) / 2.0 ;
780 gMC->Gsvolu("PTXP", "BOX ", idtmed[707], dptxp, 3) ;
782 yO = ( fGeom->GetAirFilledBoxSize(1) - fGeom->GetLowerTextolitPlateThickness() ) / 2.
783 - ( fGeom->GetIPtoCrystalSurface() - fGeom->GetIPtoOuterCoverDistance() - fGeom->GetUpperPlateThickness()
784 - fGeom->GetSecondUpperPlateThickness() + dpcbl[1] * 2 + fGeom->GetSupportPlateThickness()
785 + fGeom->GetLowerThermoPlateThickness() ) ;
787 gMC->Gspos("PTXP", 1, "PAIR", 0.0, yO, 0.0, 0, "ONLY") ;
791 //____________________________________________________________________________
792 void AliPHOSv0::CreateGeometryforPPSD()
794 // Create the PHOS-PPSD geometry for GEANT
799 Geant3 geometry tree of PHOS-PPSD in ALICE
802 <IMG Align=BOTTOM ALT="PPSD geant tree" SRC="../images/PPSDinAlice.gif">
807 // Get pointer to the array containing media indexes
808 Int_t *idtmed = fIdtmed->GetArray() - 699 ;
810 // The box containing all ppsd's for one PHOS module filled with air
812 ppsd[0] = fGeom->GetPPSDBoxSize(0) / 2.0 ;
813 ppsd[1] = fGeom->GetPPSDBoxSize(1) / 2.0 ;
814 ppsd[2] = fGeom->GetPPSDBoxSize(2) / 2.0 ;
816 gMC->Gsvolu("PPSD", "BOX ", idtmed[798], ppsd, 3) ;
818 Float_t yO = fGeom->GetOuterBoxSize(1) / 2.0 ;
820 gMC->Gspos("PPSD", 1, "PHOS", 0.0, yO, 0.0, 0, "ONLY") ;
822 // Now we build a micromegas module
823 // The box containing the whole module filled with epoxy (FR4)
826 mppsd[0] = fGeom->GetPPSDModuleSize(0) / 2.0 ;
827 mppsd[1] = fGeom->GetPPSDModuleSize(1) / 2.0 ;
828 mppsd[2] = fGeom->GetPPSDModuleSize(2) / 2.0 ;
830 gMC->Gsvolu("MPPS", "BOX ", idtmed[708], mppsd, 3) ;
833 // 1. The Top Lid made of epoxy (FR4)
836 tlppsd[0] = fGeom->GetPPSDModuleSize(0) / 2.0 ;
837 tlppsd[1] = fGeom->GetLidThickness() / 2.0 ;
838 tlppsd[2] = fGeom->GetPPSDModuleSize(2) / 2.0 ;
840 gMC->Gsvolu("TLPS", "BOX ", idtmed[708], tlppsd, 3) ;
842 Float_t y0 = ( fGeom->GetMicromegas1Thickness() - fGeom->GetLidThickness() ) / 2. ;
844 gMC->Gspos("TLPS", 1, "MPPS", 0.0, y0, 0.0, 0, "ONLY") ;
846 // 2. the upper panel made of composite material
849 upppsd[0] = ( fGeom->GetPPSDModuleSize(0) - fGeom->GetMicromegasWallThickness() ) / 2.0 ;
850 upppsd[1] = fGeom->GetCompositeThickness() / 2.0 ;
851 upppsd[2] = ( fGeom->GetPPSDModuleSize(2) - fGeom->GetMicromegasWallThickness() ) / 2.0 ;
853 gMC->Gsvolu("UPPS", "BOX ", idtmed[709], upppsd, 3) ;
855 y0 = y0 - fGeom->GetLidThickness() / 2. - fGeom->GetCompositeThickness() / 2. ;
857 gMC->Gspos("UPPS", 1, "MPPS", 0.0, y0, 0.0, 0, "ONLY") ;
859 // 3. the anode made of Copper
862 anppsd[0] = ( fGeom->GetPPSDModuleSize(0) - fGeom->GetMicromegasWallThickness() ) / 2.0 ;
863 anppsd[1] = fGeom->GetAnodeThickness() / 2.0 ;
864 anppsd[2] = ( fGeom->GetPPSDModuleSize(2) - fGeom->GetMicromegasWallThickness() ) / 2.0 ;
866 gMC->Gsvolu("ANPS", "BOX ", idtmed[710], anppsd, 3) ;
868 y0 = y0 - fGeom->GetCompositeThickness() / 2. - fGeom->GetAnodeThickness() / 2. ;
870 gMC->Gspos("ANPS", 1, "MPPS", 0.0, y0, 0.0, 0, "ONLY") ;
872 // 4. the conversion gap + avalanche gap filled with gas
875 ggppsd[0] = ( fGeom->GetPPSDModuleSize(0) - fGeom->GetMicromegasWallThickness() ) / 2.0 ;
876 ggppsd[1] = ( fGeom->GetConversionGap() + fGeom->GetAvalancheGap() ) / 2.0 ;
877 ggppsd[2] = ( fGeom->GetPPSDModuleSize(2) - fGeom->GetMicromegasWallThickness() ) / 2.0 ;
879 gMC->Gsvolu("GGPS", "BOX ", idtmed[715], ggppsd, 3) ;
881 // --- Divide GGPP in X (phi) and Z directions --
882 gMC->Gsdvn("GROW", "GGPS", fGeom->GetNumberOfPadsPhi(), 1) ;
883 gMC->Gsdvn("GCEL", "GROW", fGeom->GetNumberOfPadsZ() , 3) ;
885 y0 = y0 - fGeom->GetAnodeThickness() / 2. - ( fGeom->GetConversionGap() + fGeom->GetAvalancheGap() ) / 2. ;
887 gMC->Gspos("GGPS", 1, "MPPS", 0.0, y0, 0.0, 0, "ONLY") ;
890 // 6. the cathode made of Copper
893 cappsd[0] = ( fGeom->GetPPSDModuleSize(0) - fGeom->GetMicromegasWallThickness() ) / 2.0 ;
894 cappsd[1] = fGeom->GetCathodeThickness() / 2.0 ;
895 cappsd[2] = ( fGeom->GetPPSDModuleSize(2) - fGeom->GetMicromegasWallThickness() ) / 2.0 ;
897 gMC->Gsvolu("CAPS", "BOX ", idtmed[710], cappsd, 3) ;
899 y0 = y0 - ( fGeom->GetAvalancheGap() + fGeom->GetAvalancheGap() ) / 2. - fGeom->GetCathodeThickness() / 2. ;
901 gMC->Gspos("CAPS", 1, "MPPS", 0.0, y0, 0.0, 0, "ONLY") ;
903 // 7. the printed circuit made of G10
906 pcppsd[0] = ( fGeom->GetPPSDModuleSize(0) - fGeom->GetMicromegasWallThickness() ) / 2,.0 ;
907 pcppsd[1] = fGeom->GetPCThickness() / 2.0 ;
908 pcppsd[2] = ( fGeom->GetPPSDModuleSize(2) - fGeom->GetMicromegasWallThickness() ) / 2.0 ;
910 gMC->Gsvolu("PCPS", "BOX ", idtmed[711], cappsd, 3) ;
912 y0 = y0 - fGeom->GetCathodeThickness() / 2. - fGeom->GetPCThickness() / 2. ;
914 gMC->Gspos("PCPS", 1, "MPPS", 0.0, y0, 0.0, 0, "ONLY") ;
916 // 8. the lower panel made of composite material
919 lpppsd[0] = ( fGeom->GetPPSDModuleSize(0) - fGeom->GetMicromegasWallThickness() ) / 2.0 ;
920 lpppsd[1] = fGeom->GetCompositeThickness() / 2.0 ;
921 lpppsd[2] = ( fGeom->GetPPSDModuleSize(2) - fGeom->GetMicromegasWallThickness() ) / 2.0 ;
923 gMC->Gsvolu("LPPS", "BOX ", idtmed[709], lpppsd, 3) ;
925 y0 = y0 - fGeom->GetPCThickness() / 2. - fGeom->GetCompositeThickness() / 2. ;
927 gMC->Gspos("LPPS", 1, "MPPS", 0.0, y0, 0.0, 0, "ONLY") ;
929 // Position the fNumberOfModulesPhi x fNumberOfModulesZ modules (mppsd) inside PPSD to cover a PHOS module
930 // the top and bottom one's (which are assumed identical) :
932 Float_t yt = ( fGeom->GetPPSDBoxSize(1) - fGeom->GetMicromegas1Thickness() ) / 2. ;
933 Float_t yb = - ( fGeom->GetPPSDBoxSize(1) - fGeom->GetMicromegas2Thickness() ) / 2. ;
935 Int_t copyNumbertop = 0 ;
936 Int_t copyNumberbot = fGeom->GetNumberOfModulesPhi() * fGeom->GetNumberOfModulesZ() ;
938 Float_t x = ( fGeom->GetPPSDBoxSize(0) - fGeom->GetPPSDModuleSize(0) ) / 2. ;
940 for ( Int_t iphi = 1; iphi <= fGeom->GetNumberOfModulesPhi(); iphi++ ) { // the number of micromegas modules in phi per PHOS module
941 Float_t z = ( fGeom->GetPPSDBoxSize(2) - fGeom->GetPPSDModuleSize(2) ) / 2. ;
943 for ( Int_t iz = 1; iz <= fGeom->GetNumberOfModulesZ(); iz++ ) { // the number of micromegas modules in z per PHOS module
944 gMC->Gspos("MPPS", ++copyNumbertop, "PPSD", x, yt, z, 0, "ONLY") ;
945 gMC->Gspos("MPPS", ++copyNumberbot, "PPSD", x, yb, z, 0, "ONLY") ;
946 z = z - fGeom->GetPPSDModuleSize(2) ;
947 } // end of Z module loop
948 x = x - fGeom->GetPPSDModuleSize(0) ;
949 } // end of phi module loop
951 // The Lead converter between two air gaps
955 uappsd[0] = fGeom->GetPPSDBoxSize(0) / 2.0 ;
956 uappsd[1] = fGeom->GetMicro1ToLeadGap() / 2.0 ;
957 uappsd[2] = fGeom->GetPPSDBoxSize(2) / 2.0 ;
959 gMC->Gsvolu("UAPPSD", "BOX ", idtmed[798], uappsd, 3) ;
961 y0 = ( fGeom->GetPPSDBoxSize(1) - 2 * fGeom->GetMicromegas1Thickness() - fGeom->GetMicro1ToLeadGap() ) / 2. ;
963 gMC->Gspos("UAPPSD", 1, "PPSD", 0.0, y0, 0.0, 0, "ONLY") ;
968 lcppsd[0] = fGeom->GetPPSDBoxSize(0) / 2.0 ;
969 lcppsd[1] = fGeom->GetLeadConverterThickness() / 2.0 ;
970 lcppsd[2] = fGeom->GetPPSDBoxSize(2) / 2.0 ;
972 gMC->Gsvolu("LCPPSD", "BOX ", idtmed[712], lcppsd, 3) ;
974 y0 = y0 - fGeom->GetMicro1ToLeadGap() / 2. - fGeom->GetLeadConverterThickness() / 2. ;
976 gMC->Gspos("LCPPSD", 1, "PPSD", 0.0, y0, 0.0, 0, "ONLY") ;
981 lappsd[0] = fGeom->GetPPSDBoxSize(0) / 2.0 ;
982 lappsd[1] = fGeom->GetLeadToMicro2Gap() / 2.0 ;
983 lappsd[2] = fGeom->GetPPSDBoxSize(2) / 2.0 ;
985 gMC->Gsvolu("LAPPSD", "BOX ", idtmed[798], lappsd, 3) ;
987 y0 = y0 - fGeom->GetLeadConverterThickness() / 2. - fGeom->GetLeadToMicro2Gap() / 2. ;
989 gMC->Gspos("LAPPSD", 1, "PPSD", 0.0, y0, 0.0, 0, "ONLY") ;
994 //____________________________________________________________________________
995 void AliPHOSv0::Init(void)
997 // Just prints an information message
1002 for(i=0;i<35;i++) printf("*");
1003 printf(" PHOS_INIT ");
1004 for(i=0;i<35;i++) printf("*");
1007 // Here the PHOS initialisation code (if any!)
1010 cout << "AliPHOS" << Version() << " : PHOS geometry intialized for " << fGeom->GetName() << endl ;
1012 cout << "AliPHOS" << Version() << " : PHOS geometry initialization failed !" << endl ;
1014 for(i=0;i<80;i++) printf("*");