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c1c44db3 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | ||
17 | ///////////////////////////////////////////////////////////////////// | |
18 | // // | |
19 | // FIT detector full geometry version 1 // | |
20 | // | |
21 | //Begin Html | |
22 | /* | |
23 | <img src="gif/AliFITv1Class.gif"> | |
24 | */ | |
25 | //End Html | |
26 | // // | |
27 | // // | |
28 | ////////////////////////////////////////////////////////////////////// | |
29 | ||
30 | #include <Riostream.h> | |
31 | #include <stdlib.h> | |
32 | ||
33 | #include "TGeoCompositeShape.h" | |
34 | #include "TGeoManager.h" | |
35 | #include "TGeoMatrix.h" | |
36 | #include "TGeoVolume.h" | |
37 | #include "TGeoTube.h" | |
38 | #include "TGeoBBox.h" | |
39 | #include "TGeoNode.h" | |
40 | ||
41 | ||
42 | #include <TGeoGlobalMagField.h> | |
43 | #include <TGraph.h> | |
44 | #include <TLorentzVector.h> | |
45 | #include <TMath.h> | |
46 | #include <TVirtualMC.h> | |
47 | #include <TString.h> | |
48 | ||
49 | #include "AliLog.h" | |
50 | #include "AliMagF.h" | |
51 | #include "AliRun.h" | |
52 | ||
53 | #include "AliFITHits.h" | |
54 | #include "AliFITv1.h" | |
55 | ||
56 | #include "AliMC.h" | |
57 | #include "AliCDBLocal.h" | |
58 | #include "AliCDBStorage.h" | |
59 | #include "AliCDBManager.h" | |
60 | #include "AliCDBEntry.h" | |
61 | #include "AliTrackReference.h" | |
62 | ||
63 | ClassImp(AliFITv1) | |
64 | ||
65 | ||
66 | //-------------------------------------------------------------------- | |
67 | AliFITv1::AliFITv1(): AliFIT(), | |
68 | fIdSens1(0), | |
69 | fPMTeff(0x0) | |
70 | ||
71 | { | |
72 | // | |
73 | // Standart constructor for T0 Detector version 0 | |
74 | } | |
75 | //-------------------------------------------------------------------- | |
76 | AliFITv1::AliFITv1(const char *name, const char *title): | |
77 | AliFIT(name,title), | |
78 | fIdSens1(0), | |
79 | fPMTeff(0x0) | |
80 | ||
81 | { | |
82 | // | |
83 | // Standart constructor for T0 Detector version 0 | |
84 | // | |
85 | fIshunt = 2; | |
86 | SetPMTeff(); | |
87 | } | |
88 | //_____________________________________________________________________________ | |
89 | ||
90 | AliFITv1::~AliFITv1() | |
91 | { | |
92 | // desctructor | |
93 | } | |
94 | ||
95 | //------------------------------------------------------------------------- | |
96 | void AliFITv1::CreateGeometry() | |
97 | { | |
98 | // | |
99 | // Create the geometry of FIT Detector version 1 full geometry | |
100 | // | |
101 | // begin Html | |
102 | // | |
103 | ||
104 | Int_t *idtmed = fIdtmed->GetArray(); | |
105 | Float_t zdetC = 83; | |
106 | Float_t zdetA = 375.; | |
107 | ||
108 | Int_t idrotm[999]; | |
109 | Double_t x,y,z; | |
110 | Float_t pstart[3] = {6, 20 ,3}; | |
111 | Float_t pinstart[3] = {3,3,2.55}; | |
112 | Float_t pmcp[3] = {2.95, 2.95, 1.5}; //MCP | |
113 | Float_t ptop[3] = {1.324, 1.324, 1.};//cherenkov radiator | |
114 | Float_t preg[3] = {1.324, 1.324, 0.05};//photcathode | |
115 | ||
116 | AliMatrix(idrotm[901], 90., 0., 90., 90., 180., 0.); | |
117 | ||
118 | //------------------------------------------------------------------- | |
119 | // T0 volume | |
120 | //------------------------------------------------------------------- | |
121 | ||
122 | Float_t x1[20] = {9, 9, 15 ,15 , 9, | |
123 | 3, -3, 3, -3, -9, | |
124 | -9, -9, -15, -15, -9, | |
125 | -3, 3, -3, 3, 9}; | |
126 | ||
127 | Float_t y1[20] = {3.2, -3.2, 3.2, -3.2, -9.2, | |
128 | -9, -9, -15, -15, -9.2, | |
129 | -3.2, 3.2, -3.2, 3.2, 9.2, | |
130 | 9, 9, 15, 15, 9.2}; | |
131 | ||
132 | ||
133 | ||
134 | TGeoVolumeAssembly * stlin = new TGeoVolumeAssembly("0STL");//empty segment | |
135 | //T0 interior | |
136 | gMC->Gsvolu("0INS","BOX",idtmed[kAir],pinstart,3); | |
137 | TGeoVolume *ins = gGeoManager->GetVolume("0INS"); | |
138 | // | |
139 | TGeoTranslation *tr [20]; | |
140 | TString nameTr; | |
141 | for (Int_t itr=0; itr<20; itr++) { | |
142 | nameTr = Form("0TR%i",itr+1); | |
143 | z=-pstart[2]+pinstart[2]; | |
144 | tr[itr] = new TGeoTranslation(nameTr.Data(),x1[itr],y1[itr], z ); | |
145 | tr[itr]->RegisterYourself(); | |
146 | stlin->AddNode(ins,itr,tr[itr]); | |
147 | } | |
148 | TGeoVolume *alice = gGeoManager->GetVolume("ALIC"); | |
149 | alice->AddNode(stlin,1,new TGeoTranslation(0,0, zdetA ) ); | |
150 | TGeoRotation * rotC = new TGeoRotation( "rotC",90., 0., 90., 90., 180., 0.); | |
151 | alice->AddNode(stlin,2, new TGeoCombiTrans(0., 0., -zdetC , rotC) ); | |
152 | ||
153 | x=0; | |
154 | y=0; | |
155 | ||
156 | // Entry window (glass) | |
157 | gMC->Gsvolu("0TOP","BOX",idtmed[kOpGlass],ptop,3); //glass | |
158 | TGeoVolume *top = gGeoManager->GetVolume("0TOP"); | |
159 | gMC->Gsvolu ("0REG", "BOX", idtmed[kOpGlassCathode], preg, 3); | |
160 | TGeoVolume *cat = gGeoManager->GetVolume("0REG"); | |
161 | gMC->Gsvolu("0MCP","BOX",idtmed[kGlass],pmcp,3); //glass | |
162 | TGeoVolume *mcp = gGeoManager->GetVolume("0MCP"); | |
163 | ||
164 | Int_t ntops=0; | |
165 | Float_t xin=0, yin=0; | |
166 | for (Int_t ix=0; ix<2; ix++) { | |
167 | xin = - pinstart[0] + 0.35 + (ix+0.5)*2*ptop[0] ; | |
168 | for (Int_t iy=0; iy<2; iy++) { | |
169 | z = - pinstart[2]+ptop[2]; | |
170 | yin = - pinstart[1] + 0.35 + (iy+0.5)*2*ptop[1]; | |
171 | ntops++; | |
172 | ins->AddNode(top, ntops, new TGeoTranslation(xin,yin,z) ); | |
173 | // printf(" 0TOP full x %f y %f z %f \n", xin, yin, z); | |
174 | z = -pinstart[2] + 2 * ptop[2] + preg[2]; | |
175 | ins->AddNode(cat, ntops, new TGeoTranslation(xin,yin,z) ); | |
176 | ||
177 | // printf(" GEOGEO %i %i %i %f %f %f %f %f %f \n", ntops, ix, iy, | |
178 | // xin,yin,x1[ntops],y1[ntops],x1[ntops]+xin,y1[ntops]+yin); | |
179 | } | |
180 | } | |
181 | // MCP | |
182 | z=-pinstart[2] + 2*ptop[2] + 2*preg[2] + pmcp[2]; | |
183 | ins->AddNode(mcp, 1 , new TGeoTranslation(0,0,z) ); | |
184 | ||
185 | ||
186 | ||
187 | ||
188 | } | |
189 | //------------------------------------------------------------------------ | |
190 | void AliFITv1::AddAlignableVolumes() const | |
191 | { | |
192 | // | |
193 | // Create entries for alignable volumes associating the symbolic volume | |
194 | // name with the corresponding volume path. Needs to be syncronized with | |
195 | // eventual changes in the geometry. | |
196 | // | |
197 | TString volPath; | |
198 | TString symName, sn; | |
199 | TString vpAalign = "/ALIC_1/0STL_1"; | |
200 | TString vpCalign = "/ALIC_1/0STL_2"; | |
201 | for (Int_t imod=0; imod<2; imod++) { | |
202 | if (imod==0) {volPath = vpCalign; symName="/ALIC_1/0STL_1"; } | |
203 | if (imod==1) {volPath = vpAalign; symName="/ALIC_1/0STL_2"; } | |
204 | ||
205 | AliDebug(2,"--------------------------------------------"); | |
206 | AliDebug(2,Form("volPath=%s\n",volPath.Data())); | |
207 | AliDebug(2,Form("symName=%s\n",symName.Data())); | |
208 | AliDebug(2,"--------------------------------------------"); | |
209 | if(!gGeoManager->SetAlignableEntry(symName.Data(),volPath.Data())) | |
210 | AliFatal(Form("Alignable entry %s not created. Volume path %s not valid", | |
211 | symName.Data(),volPath.Data())); | |
212 | } | |
213 | } | |
214 | //------------------------------------------------------------------------ | |
215 | void AliFITv1::CreateMaterials() | |
216 | { | |
217 | ||
218 | Int_t isxfld = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Integ(); | |
219 | Float_t sxmgmx = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Max(); | |
220 | // Float_t a,z,d,radl,absl,buf[1]; | |
221 | // Int_t nbuf; | |
222 | // AIR | |
223 | ||
224 | Float_t aAir[4]={12.0107,14.0067,15.9994,39.948}; | |
225 | Float_t zAir[4]={6.,7.,8.,18.}; | |
226 | Float_t wAir[4]={0.000124,0.755267,0.231781,0.012827}; | |
227 | Float_t dAir = 1.20479E-3; | |
228 | Float_t dAir1 = 1.20479E-11; | |
229 | // Radiator glass SiO2 | |
230 | Float_t aglass[2]={28.0855,15.9994}; | |
231 | Float_t zglass[2]={14.,8.}; | |
232 | Float_t wglass[2]={1.,2.}; | |
233 | Float_t dglass=2.65; | |
234 | // MCP glass SiO2 | |
235 | Float_t dglass_mcp=1.3; | |
236 | //*** Definition Of avaible T0 materials *** | |
237 | AliMixture(1, "Vacuum$", aAir, zAir, dAir1,4,wAir); | |
238 | AliMixture(2, "Air$", aAir, zAir, dAir,4,wAir); | |
239 | AliMixture( 4, "MCP glass $",aglass,zglass,dglass_mcp,-2,wglass); | |
240 | AliMixture( 24, "Radiator Optical glass$",aglass,zglass,dglass,-2,wglass); | |
241 | ||
242 | AliMedium(1, "Air$", 2, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003); | |
243 | AliMedium(3, "Vacuum$", 1, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003); | |
244 | AliMedium(6, "Glass$", 4, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003); | |
245 | ||
246 | AliMedium(16, "OpticalGlass$", 24, 1, isxfld, sxmgmx, 10., .01, .1, .003, .003); | |
247 | AliMedium(19, "OpticalGlassCathode$", 24, 1, isxfld, sxmgmx, 10., .01, .1, .003, .003); | |
248 | AliMedium(22, "SensAir$", 2, 1, isxfld, sxmgmx, 10., .1, 1., .003, .003); | |
249 | ||
250 | AliDebugClass(1,": ++++++++++++++Medium set++++++++++"); | |
251 | ||
252 | ||
253 | } | |
254 | ||
255 | //------------------------------------------------------------------- | |
256 | void AliFITv1::DefineOpticalProperties() | |
257 | { | |
258 | ||
259 | ||
260 | // Optical properties definition. | |
261 | Int_t *idtmed = fIdtmed->GetArray(); | |
262 | // Definition Cherenkov parameters | |
263 | int i; | |
264 | const Int_t kNbins=31; | |
265 | ||
266 | Float_t rindexSiO2[kNbins], efficAll[kNbins], rindexAir[kNbins], absorAir[kNbins],rindexCathodeNext[kNbins], absorbCathodeNext[kNbins]; | |
267 | Double_t efficMet[kNbins], aReflMet[kNbins]; | |
268 | ||
269 | // quartz 20mm | |
270 | Float_t aAbsSiO2[kNbins]={29.0, 28.6, 28.3, 27.7, 27.3, 26.7, 26.4, | |
271 | 25.9, 25.3, 24.9, 24.5, 23.7, | |
272 | 23.2, 22.8, 22.4, 21.8, 21.3, | |
273 | 22.8, 22.1, 21.7, 21.2, 20.5, | |
274 | 19.9, 19.3, 18.7, 18.0, 17.1, | |
275 | 16.3, 15.3, 14.3, 14.3 }; | |
276 | ||
277 | Float_t aPckov[kNbins] ={3.87, 3.94, 4.02, 4.11, 4.19, 4.29, 4.38, | |
278 | 4.48, 4.58, 4.69, 4.81, 4.93, | |
279 | 5.05, 5.19, 5.33, 5.48, 5.63, | |
280 | 5.8, 5.97, 6.16, 6.36, 6.57, | |
281 | 6.8, 7.04, 7.3, 7.58, 7.89, | |
282 | 8.22, 8.57, 8.97, 9.39 }; | |
283 | Double_t dPckov[kNbins] ={3.87, 3.94, 4.02, 4.11, 4.19, 4.29, 4.38, | |
284 | 4.48, 4.58, 4.69, 4.81, 4.93, | |
285 | 5.05, 5.19, 5.33, 5.48, 5.63, | |
286 | 5.8, 5.97, 6.16, 6.36, 6.57, | |
287 | 6.8, 7.04, 7.3, 7.58, 7.89, | |
288 | 8.22, 8.57, 8.97, 9.39 }; | |
289 | ||
290 | /* | |
291 | Float_t effCathode[kNbins]={0.11, 0.13, 0.15, 0.16, 0.18, 0.19, 0.20, | |
292 | 0.21, 0.22, 0.23, 0.24, 0.26, | |
293 | 0.27, 0.29, 0.30, 0.29, 0.29, | |
294 | 0.28, 0.28, 0.27, 0.26, 0.25, | |
295 | 0.25, 0.23, 0.20, 0.19, 0.17, | |
296 | 0.17, 0.17, 0.2, 0.23}; | |
297 | */ | |
298 | // Float_t aAbsSiO2[kNbins]; //quartz 30mm | |
299 | for(i=0;i<kNbins;i++) | |
300 | ||
301 | { | |
302 | aPckov[i]=aPckov[i]*1e-9;//Photons energy bins 4 eV - 8.5 eV step 0.1 eV | |
303 | dPckov[i]=dPckov[i]*1e-9;//Photons energy bins 4 eV - 8.5 eV step 0.1 eV | |
304 | // rindexAir[i]=0.0001; | |
305 | rindexAir[i] = 1.; | |
306 | rindexSiO2[i]=1.458; //refractive index for qwarts | |
307 | rindexCathodeNext[i]=0; | |
308 | efficAll[i]=1.; | |
309 | efficMet[i]=0.; | |
310 | aReflMet[i]=1.; | |
311 | // aAbsSiO2[i]=28.5; //quartz 30mm | |
312 | absorAir[i]=0.3; | |
313 | absorbCathodeNext[i]=0; | |
314 | ||
315 | } | |
316 | ||
317 | gMC->SetCerenkov (idtmed[kOpGlass], kNbins, aPckov, aAbsSiO2, efficAll, rindexSiO2 ); | |
318 | // gMC->SetCerenkov (idtmed[kOpGlassCathode], kNbins, aPckov, aAbsSiO2, effCathode, rindexSiO2 ); | |
319 | gMC->SetCerenkov (idtmed[kOpGlassCathode], kNbins, aPckov, aAbsSiO2,efficAll , rindexSiO2 ); | |
320 | // gMC->SetCerenkov (idtmed[kOpAir], kNbins, aPckov,absorAir , efficAll,rindexAir ); | |
321 | // gMC->SetCerenkov (idtmed[kOpAirNext], kNbins, aPckov,absorbCathodeNext , efficAll, rindexCathodeNext); | |
322 | ||
323 | //Define a boarder for radiator optical properties | |
324 | gMC->DefineOpSurface("surfRd", kUnified /*kGlisur*/,kDielectric_metal,kPolished, 0.); | |
325 | gMC->SetMaterialProperty("surfRd", "EFFICIENCY", kNbins, dPckov, efficMet); | |
326 | gMC->SetMaterialProperty("surfRd", "REFLECTIVITY", kNbins, dPckov, aReflMet); | |
327 | ||
328 | ||
329 | } | |
330 | ||
331 | //------------------------------------------------------------------- | |
332 | void AliFITv1::Init() | |
333 | { | |
334 | // Initialises version 0 of the Forward Multiplicity Detector | |
335 | // | |
336 | AliFIT::Init(); | |
337 | fIdSens1=gMC->VolId("0REG"); | |
338 | ||
339 | AliDebug(1,Form("%s: *** FIT version 1 initialized ***\n",ClassName())); | |
340 | } | |
341 | ||
342 | //------------------------------------------------------------------- | |
343 | ||
344 | void AliFITv1::StepManager() | |
345 | { | |
346 | // | |
347 | // Called for every step in the T0 Detector | |
348 | // | |
349 | Int_t id,copy,copy1; | |
350 | static Float_t hits[6]; | |
351 | static Int_t vol[3]; | |
352 | TLorentzVector pos; | |
353 | TLorentzVector mom; | |
354 | ||
355 | // TClonesArray &lhits = *fHits; | |
356 | ||
357 | if(!gMC->IsTrackAlive()) return; // particle has disappeared | |
358 | ||
359 | id=gMC->CurrentVolID(copy); | |
360 | // Check the sensetive volume | |
361 | if(id==fIdSens1 ) { | |
362 | if(gMC->IsTrackEntering()) { | |
363 | gMC->CurrentVolOffID(1,copy1); | |
364 | vol[1] = copy1; | |
365 | vol[0]=copy; | |
366 | gMC->TrackPosition(pos); | |
367 | hits[0] = pos[0]; | |
368 | hits[1] = pos[1]; | |
369 | hits[2] = pos[2]; | |
370 | if(pos[2]<0) vol[2] = 0; | |
371 | else vol[2] = 1 ; | |
372 | // printf(" volumes pmt %i mcp %i side %i x %f y %f z %f\n", vol[0], vol[1], vol[2], hits[0], hits[1], hits[2] ); | |
373 | ||
374 | Float_t etot=gMC->Etot(); | |
375 | hits[3]=etot; | |
376 | Int_t iPart= gMC->TrackPid(); | |
377 | Int_t partID=gMC->IdFromPDG(iPart); | |
378 | hits[4]=partID; | |
379 | Float_t ttime=gMC->TrackTime(); | |
380 | hits[5]=ttime*1e12; | |
381 | if (gMC->TrackPid() == 50000050) // If particles is photon then ... | |
382 | { | |
383 | // if(RegisterPhotoE(vol[1]-1,hits[3])) { | |
384 | if(RegisterPhotoE(hits[3])) { | |
385 | AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(),vol,hits); | |
386 | // Create a track reference at the exit of photocatode | |
387 | } | |
388 | } | |
389 | ||
390 | //charge particle | |
391 | if ( gMC->TrackCharge() ) | |
392 | AddTrackReference(gAlice->GetMCApp()->GetCurrentTrackNumber(), AliTrackReference::kFIT); | |
393 | ||
394 | }// trck entering | |
395 | } //sensitive | |
396 | ||
397 | } | |
398 | ||
399 | ||
400 | ||
401 | //------------------------------------------------------------------------ | |
402 | Bool_t AliFITv1::RegisterPhotoE(Double_t energy) | |
403 | { | |
404 | ||
405 | ||
406 | // Float_t hc=197.326960*1.e6; //mev*nm | |
407 | Double_t hc=1.973*1.e-6; //gev*nm | |
408 | Float_t lambda=hc/energy; | |
409 | Float_t eff = fPMTeff->Eval(lambda); | |
410 | Double_t p = gRandom->Rndm(); | |
411 | ||
412 | if (p > eff) | |
413 | return kFALSE; | |
414 | ||
415 | return kTRUE; | |
416 | } | |
417 | ||
418 | //---------------------------------------------------------------------------- | |
419 | ||
420 | void AliFITv1::SetPMTeff() | |
421 | { | |
422 | Float_t lambda[50]; | |
423 | Float_t eff[50 ] = {0, 0, 0.23619, 0.202909, 0.177913, | |
424 | 0.175667, 0.17856, 0.190769, 0.206667, 0.230286, | |
425 | 0.252276, 0.256267,0.26, 0.27125, 0.281818, | |
426 | 0.288118, 0.294057,0.296222, 0.301622, 0.290421, | |
427 | 0.276615, 0.2666, 0.248, 0.23619, 0.227814, | |
428 | 0.219818, 0.206667,0.194087, 0.184681, 0.167917, | |
429 | 0.154367, 0.1364, 0.109412, 0.0834615,0.0725283, | |
430 | 0.0642963,0.05861, 0.0465, 0.0413333,0.032069, | |
431 | 0.0252203,0.02066, 0.016262, 0.012, 0.00590476, | |
432 | 0.003875, 0.00190, 0, 0, 0 } ; | |
433 | for (Int_t i=0; i<50; i++) lambda[i]=200+10*i; | |
434 | ||
435 | fPMTeff = new TGraph(50,lambda,eff); | |
436 | ||
437 | } | |
438 | ||
439 | ||
440 | ||
441 | ||
442 |