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bc46b572 | 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 | // START ( T-zero) detector version 1 // | |
20 | // | |
21 | //Begin Html | |
22 | /* | |
23 | <img src="gif/AliSTARTv1Class.gif"> | |
24 | */ | |
25 | //End Html | |
26 | // // | |
27 | // // | |
28 | ////////////////////////////////////////////////////////////////////// | |
29 | ||
30 | #include <TMath.h> | |
31 | #include <TGeometry.h> | |
32 | #include <TTUBE.h> | |
33 | #include <TNode.h> | |
0cc62300 | 34 | #include <TLorentzVector.h> |
bc46b572 | 35 | |
36 | #include "AliSTARTv1.h" | |
37 | #include "AliRun.h" | |
38 | #include "AliMC.h" | |
94de3818 | 39 | #include "AliMagF.h" |
bc46b572 | 40 | #include "AliSTARThit.h" |
41 | ||
42 | #include <iostream.h> | |
43 | #include <fstream.h> | |
44 | ||
45 | //#include "TGeant3.h" | |
46 | #include <stdlib.h> | |
47 | ||
48 | ClassImp(AliSTARTv1) | |
49 | ||
50 | //-------------------------------------------------------------------- | |
51 | AliSTARTv1::AliSTARTv1(const char *name, const char *title): | |
52 | AliSTART(name,title) | |
53 | { | |
54 | // | |
55 | // Standart constructor for START Detector version 0 | |
56 | // | |
57 | fIdSens1=0; | |
58 | // setBufferSize(128000); | |
59 | } | |
60 | //------------------------------------------------------------------------- | |
61 | void AliSTARTv1::CreateGeometry() | |
62 | { | |
63 | // | |
64 | // Create the geometry of START Detector version 0 | |
65 | // | |
66 | // begin Html | |
67 | /* | |
68 | <img src="gif/AliSTARTv0.gif"> | |
69 | */ | |
70 | // | |
71 | ||
72 | ||
73 | Int_t *idtmed = fIdtmed->GetArray(); | |
74 | ||
75 | Int_t is; | |
76 | Int_t idrotm[999]; | |
77 | Float_t x,y,z; | |
78 | ||
79 | Float_t pstart[3]={4.5,10.7,5.3}; | |
ef51244a | 80 | Float_t pinstart[3]={0.,1.3,5.25}; |
bc46b572 | 81 | Float_t ppmt[3]={0.,1.3,3.5}; |
82 | Float_t pdivider[3]={0.,1.2,1.75}; | |
83 | Float_t pdiv2[3]={0.,1.2,1.25}; | |
84 | Float_t pdiv1[3]={0.6,1.2,0.5}; | |
85 | Float_t ptop[3]={0.,1.3,1.5}; | |
86 | Float_t pbot[3]={0.6,1.2,0.1}; | |
87 | Float_t pglass[3]={1.2,1.3,2.}; | |
88 | Float_t pcer[3]={0.9,1.1,0.09}; | |
89 | Float_t psteel[3]={0.9,1.1,0.01}; | |
90 | Float_t ppins[3]={0.6,1.2,0.014}; | |
91 | Float_t phole[3]={0.6,1.2,0.015}; | |
92 | Float_t pknob[3]={0.5,0.6,0.4}; | |
93 | Float_t pknob_vac[3]={0.,0.5,0.4}; | |
94 | Float_t pknob_bot[3]={0.,0.6,0.05}; | |
95 | Float_t pribber[3] = {0.,1.2,2.413/2.}; | |
96 | Float_t presist[3] = {0.,1.2,0.087/2.}; | |
97 | ||
98 | Float_t zdet=75.; | |
99 | //------------------------------------------------------------------- | |
100 | // START volume | |
101 | //------------------------------------------------------------------- | |
102 | ||
103 | // Float_t theta=TMath::ATan(6.5/zdet); | |
104 | Float_t theta=(180./3.1415)*TMath::ATan(6.5/zdet); | |
105 | AliMatrix(idrotm[901], 90., 0., 90., 90., 180., 0.); | |
106 | ||
107 | gMC->Gsvolu("STRT","TUBE",idtmed[1],pstart,3); | |
108 | gMC->Gspos("STRT",1,"ALIC",0.,0.,zdet,0,"ONLY"); | |
109 | gMC->Gspos("STRT",2,"ALIC",0.,0.,-zdet,idrotm[901],"ONLY"); | |
110 | ||
111 | //START interior | |
ef51244a | 112 | gMC->Gsvolu("INST","TUBE",idtmed[1],pinstart,3); |
bc46b572 | 113 | gMC->Gsvolu("PMT ","TUBE",idtmed[3],ppmt,3); |
114 | gMC->Gsvolu("DIVI","TUBE",idtmed[3],pdivider,3); | |
115 | ||
116 | // first ring: 12 units of Scintillator+PMT+divider | |
117 | Double_t dang1 = 2*TMath::Pi()/12; | |
118 | for (is=1; is<=12; is++) | |
119 | { | |
120 | AliMatrix(idrotm[901+is], | |
121 | 90.-theta, 30.*is, | |
122 | 90., 90.+30.*is, | |
123 | theta, 180.+30.*is); | |
124 | x=6.5*TMath::Sin(is*dang1); | |
125 | y=6.5*TMath::Cos(is*dang1); | |
ef51244a | 126 | z=-pstart[2]+pinstart[2]; |
127 | gMC->Gspos("INST",is,"STRT",x,y,z,idrotm[901+is],"ONLY"); | |
bc46b572 | 128 | printf("z PMT %f\n",z); |
ef51244a | 129 | |
130 | ||
131 | x=0; | |
132 | y=0; | |
133 | z=-pinstart[2]+ppmt[2]; | |
bc46b572 | 134 | printf(" is %d, z Divider %f\n",is,z); |
ef51244a | 135 | gMC->Gspos("PMT ",is,"INST",x,y,z,0,"ONLY"); |
136 | z=pinstart[2]-pdivider[2]; | |
137 | gMC->Gspos("DIVI",is,"INST",x,y,z,0,"ONLY"); | |
bc46b572 | 138 | } |
139 | /* | |
140 | //second ring: 20 units of Scintillator+PMT+divider | |
141 | Double_t dang2 = 2*TMath::Pi()/26; | |
142 | Double_t dang3 = 2*TMath::Pi()/20; | |
143 | for (is=14; is<=33;is++) | |
144 | { | |
145 | x=9.3*TMath::Sin(dang2+(is-13)*dang3); | |
146 | y=9.3*TMath::Cos(dang2+(is-13)*dang3); | |
147 | z=-pstart[2]+ppmt[2]; | |
148 | gMC->Gspos("PMT ",is,"STRT",x,y,z,0,"ONLY"); | |
149 | z=z+ppmt[2]+pdiv2[2]; | |
150 | gMC->Gspos("DIVI",is,"STRT",x,y,z,0,"ONLY"); | |
151 | } | |
152 | */ | |
153 | // PMT | |
154 | ||
155 | // Entry window (glass) | |
156 | gMC->Gsvolu("PTOP","TUBE",idtmed[6],ptop,3); | |
157 | z=-ppmt[2]+ptop[2]; | |
158 | gMC->Gspos("PTOP",1,"PMT ",0,0,z,0,"ONLY"); | |
159 | // printf("Z PTOP %f -ppmt[2] %f ptop[2] %f\n",z,-ppmt[2],ptop[2]); | |
160 | // Bottom glass | |
161 | gMC->Gsvolu("PBOT","TUBE",idtmed[6],pbot,3); | |
162 | z=ppmt[2]-pbot[2]; | |
163 | printf("Z bottom %f\n",z); | |
164 | gMC->Gspos("PBOT",1,"PMT ",0,0,z,0,"ONLY"); | |
165 | // Side cylinder glass | |
166 | gMC->Gsvolu("POUT","TUBE",idtmed[6],pglass,3); | |
167 | z=ppmt[2]-pglass[2]; | |
168 | // printf("Z glass %f\n",z); | |
169 | gMC->Gspos("POUT",1,"PMT ",0,0,z,0,"ONLY"); | |
170 | //PMT electrodes support structure | |
171 | gMC->Gsvolu("PCER","TUBE",idtmed[4],pcer,3); | |
172 | gMC->Gsvolu("PSTE","TUBE",idtmed[8],psteel,3); | |
173 | z=-ppmt[2]+2*ptop[2]+0.3;; | |
174 | // printf("Z Cer 1 %f\n",z); | |
175 | for (is=1; is<=15; is++) | |
176 | { | |
177 | z=z+psteel[2]+pcer[2]; | |
178 | gMC->Gspos("PCER",is,"PMT",0,0,z,0,"ONLY"); | |
179 | z=z+psteel[2]+pcer[2]; | |
180 | gMC->Gspos("PSTE",is,"PMT",0,0,z,0,"ONLY"); | |
181 | } | |
182 | ||
183 | // Divider | |
184 | // Knob at the bottom of PMT baloon | |
185 | ||
186 | gMC->Gsvolu("KNOB","TUBE",idtmed[6],pknob,3); | |
187 | z=-pdivider[2]+pknob[2]; | |
188 | // printf("zknob %f\n",z); | |
189 | gMC->Gspos("KNOB",1,"DIVI",0,0,z,0,"ONLY"); | |
190 | gMC->Gsvolu("KNBO","TUBE",idtmed[6],pknob_bot,3); | |
191 | z=-pdivider[2]+2*pknob[2]+pknob_bot[2]; | |
192 | // printf("knobbot %f\n",z); | |
193 | gMC->Gspos("KNBO",1,"DIVI ",0,0,z,0,"ONLY"); | |
194 | gMC->Gsvolu("KNVA","TUBE",idtmed[3],pknob_vac,3); | |
195 | z=-pdivider[2]+pknob_vac[2]; | |
196 | // printf("knobvac %f\n",z); | |
197 | gMC->Gspos("KNVA",1,"DIVI",0,0,z,0,"ONLY"); | |
198 | //Steel pins + pin holes | |
199 | gMC->Gsvolu("PINS","TUBE",idtmed[8],ppins,3); | |
200 | z=-pdivider[2]+ppins[2]; | |
201 | gMC->Gspos("PINS",1,"DIVI",0,0,z,0,"ONLY"); | |
202 | gMC->Gsvolu("HOLE","TUBE",idtmed[11],phole,3); | |
203 | z=-pdivider[2]+2*ppins[2]+phole[2]; | |
204 | gMC->Gspos("HOLE",1,"DIVI",0,0,z,0,"ONLY"); | |
205 | ||
206 | //Socket | |
207 | gMC->Gsvolu("DIV1","TUBE",idtmed[4],pdiv1,3); | |
208 | z=-pdivider[2]+pdiv1[2]; | |
209 | gMC->Gspos("DIV1",1,"DIVI",0,0,z,0,"ONLY"); | |
210 | //Resistors | |
211 | gMC->Gsvolu("DIV2","TUBE",idtmed[1],pdiv2,3); | |
212 | z=pdivider[2]-pdiv2[2]; | |
213 | gMC->Gspos("DIV2",1,"DIVI",0,0,z,0,"ONLY"); | |
214 | gMC->Gsvolu("DRES","TUBE",idtmed[4],presist,3); | |
215 | z=-pdiv2[2]+presist[2]; | |
216 | gMC->Gspos("DRES",1,"DIV2",0,0,z,0,"ONLY"); | |
217 | gMC->Gsvolu("DRIB","TUBE",idtmed[9],pribber,3); | |
218 | z=pdiv2[2]-pribber[2]; | |
219 | gMC->Gspos("DRIB",1,"DIV2",0,0,z,0,"ONLY"); | |
220 | // printf("z DRIB %f\n",z); | |
221 | ||
222 | ||
223 | } | |
224 | //------------------------------------------------------------------------ | |
225 | void AliSTARTv1::CreateMaterials() | |
226 | { | |
ef51244a | 227 | Int_t isxfld = gAlice->Field()->Integ(); |
228 | Float_t sxmgmx = gAlice->Field()->Max(); | |
bc46b572 | 229 | Float_t a,z,d,radl,absl,buf[1]; |
230 | Int_t nbuf; | |
231 | ||
232 | // Scintillator CH | |
233 | Float_t ascin[2]={1.01,12.01}; | |
234 | Float_t zscin[2]={1,6}; | |
235 | Float_t wscin[2]={1,1}; | |
236 | Float_t denscin=1.03; | |
237 | // PMT glass SiO2 | |
238 | Float_t aglass[2]={28.0855,15.9994}; | |
239 | Float_t zglass[2]={14.,8.}; | |
240 | Float_t wglass[2]={1.,2.}; | |
241 | Float_t dglass=2.65; | |
242 | // Ceramic 97.2% Al2O3 , 2.8% SiO2 | |
243 | Float_t acer[2],zcer[2],wcer[2]={0.972,0.028}; | |
244 | Float_t aal2o3[2] = { 26.981539,15.9994 }; | |
245 | Float_t zal2o3[2] = { 13.,8. }; | |
246 | Float_t wal2o3[2] = { 2.,3. }; | |
247 | Float_t denscer = 3.6; | |
248 | ||
249 | // Brass 80% Cu, 20% Zn | |
250 | Float_t abrass[2] = {63.546,65.39}; | |
251 | Float_t zbrass[2] = {29,30}; | |
252 | Float_t wbrass[2] = {0.8,0.2}; | |
253 | Float_t denbrass=8.96; | |
254 | ||
255 | //Ribber C6H12S | |
256 | Float_t aribber[3] = {12.,1.,32.}; | |
257 | Float_t zribber[3] = {6.,1.,16.}; | |
258 | Float_t wribber[3] = {6.,12.,1.}; | |
259 | Float_t denribber=0.8; | |
260 | /* | |
261 | // Definition Cherenkov parameters | |
262 | Float_t ppckov[14] = { 5.63e-9,5.77e-9,5.9e-9,6.05e-9,6.2e-9,6.36e-9,6.52e-9,6.7e-9,6.88e-9,7.08e-9,7.3e-9,7.51e-9,7.74e-9,8e-9 }; | |
263 | Float_t rindex_quarz[14] = { 1.528309,1.533333, | |
264 | 1.538243,1.544223,1.550568,1.55777, | |
265 | 1.565463,1.574765,1.584831,1.597027, | |
266 | 1.611858,1.6277,1.6472,1.6724 }; | |
267 | ||
268 | Float_t absco_quarz[14] = { 20.126,16.27,13.49,11.728,9.224,8.38,7.44,7.17, | |
269 | 6.324,4.483,1.6,.323,.073,0. }; | |
270 | */ | |
bc46b572 | 271 | |
272 | //*** Definition Of avaible START materials *** | |
273 | AliMaterial(0, "START Steel$", 55.850,26.,7.87,1.76,999); | |
274 | AliMaterial(1, "START Vacuum$", 1.e-16,1.e-16,1.e-16,1.e16,999); | |
275 | AliMaterial(2, "START Air$", 14.61, 7.3, .001205, 30423.,999); | |
276 | ||
277 | AliMixture( 3, "Al2O3 $", aal2o3, zal2o3, denscer, -2, wal2o3); | |
278 | AliMixture( 4, "PMT glass $",aglass,zglass,dglass,-2,wglass); | |
279 | char namate[21]; | |
280 | gMC->Gfmate((*fIdmate)[3], namate, a, z, d, radl, absl, buf, nbuf); | |
281 | acer[0]=a; | |
282 | zcer[0]=z; | |
283 | gMC->Gfmate((*fIdmate)[4], namate, a, z, d, radl, absl, buf, nbuf); | |
284 | acer[1]=a; | |
285 | zcer[1]=z; | |
286 | ||
287 | AliMixture( 9, "Ceramic $", acer, zcer, denscer, 2, wcer); | |
288 | AliMixture( 5, "Scintillator$",ascin,zscin,denscin,-2,wscin); | |
289 | AliMixture( 6, "Brass $", abrass, zbrass, denbrass, 2, wbrass); | |
290 | ||
291 | AliMixture( 7, "Ribber $",aribber,zribber,denribber,-3,wribber); | |
292 | ||
293 | ||
ef51244a | 294 | AliMedium(1, "START Air$", 2, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003); |
295 | AliMedium(2, "Scintillator$", 5, 1, isxfld, sxmgmx, 10., .01, 1., .003, .003); | |
296 | AliMedium(3, "Vacuum$", 1, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003); | |
297 | AliMedium(4, "Ceramic$", 9, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003); | |
298 | AliMedium(6, "Glass$", 4, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003); | |
299 | AliMedium(8, "Steel$", 0, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001); | |
300 | AliMedium(9, "Ribber $", 7, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003); | |
301 | AliMedium(11, "Brass $", 6, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003); | |
bc46b572 | 302 | cout<<"++++++++++++++Medium set++++++++++"<<endl; |
303 | ||
304 | // geant3->Gsckov(idtmed[2105], 14, ppckov, absco_quarz, effic_all,rindex_quarz); | |
305 | ||
306 | } | |
307 | //--------------------------------------------------------------------- | |
308 | void AliSTARTv1::DrawDetector() | |
309 | { | |
310 | // | |
311 | // Draw a shaded view of the Forward multiplicity detector version 0 | |
312 | // | |
313 | ||
314 | //Set ALIC mother transparent | |
315 | gMC->Gsatt("ALIC","SEEN",0); | |
316 | // | |
317 | //Set volumes visible | |
ef51244a | 318 | // gMC->Gsatt("STRT","SEEN",0); |
319 | gMC->Gsatt("INST","SEEN",0); | |
bc46b572 | 320 | gMC->Gsatt("PMT ","SEEN",1); |
321 | gMC->Gsatt("DIVI","SEEN",1); | |
322 | // | |
323 | gMC->Gdopt("hide","on"); | |
324 | gMC->Gdopt("shad","on"); | |
325 | gMC->SetClipBox("."); | |
326 | gMC->SetClipBox("*",0,1000,-1000,1000,-1000,1000); | |
327 | gMC->DefaultRange(); | |
328 | gMC->Gdraw("alic",40,30,0,12,9.5,.7,0.7); | |
329 | gMC->Gdhead(1111,"T-Zero detector"); | |
330 | gMC->Gdopt("hide","off"); | |
331 | } | |
332 | ||
333 | //------------------------------------------------------------------- | |
334 | void AliSTARTv1::Init() | |
335 | { | |
336 | // Initialises version 0 of the Forward Multiplicity Detector | |
337 | // | |
338 | //Int_t *idtmed = gAlice->Idtmed(); | |
339 | AliSTART::Init(); | |
340 | fIdSens1=gMC->VolId("PTOP"); | |
341 | printf("*** START version 0 initialized ***\n"); | |
342 | ||
343 | } | |
344 | ||
345 | //------------------------------------------------------------------- | |
346 | ||
347 | void AliSTARTv1::StepManager() | |
348 | { | |
349 | // | |
350 | // Called for every step in the START Detector | |
351 | // | |
352 | Int_t id,copy,copy1; | |
353 | static Float_t hits[7]; | |
354 | static Float_t edep; | |
355 | static Int_t vol[2]; | |
356 | TLorentzVector pos; | |
357 | ||
358 | TClonesArray &lhits = *fHits; | |
359 | ||
360 | if(!gMC->IsTrackAlive()) return; // particle has disappeared | |
361 | Float_t charge = gMC->TrackCharge(); | |
362 | if(TMath::Abs(charge)<=0.) return; //take only charged particles | |
363 | id=gMC->CurrentVolID(copy); | |
364 | ||
365 | ||
366 | // printf("gMC->ckine->ipart %d",gMC->ckine->ipart); | |
367 | // Check the sensetive volume | |
368 | if(id==fIdSens1 ) { | |
369 | if(gMC->IsTrackEntering()) { | |
370 | gMC->CurrentVolOffID(2,copy); | |
371 | vol[0]=copy; | |
372 | gMC->CurrentVolOffID(1,copy1); | |
373 | vol[1]=copy1; | |
374 | gMC->TrackPosition(pos); | |
375 | hits[0] = pos[0]; | |
376 | hits[1] = pos[1]; | |
377 | hits[2] = pos[2]; | |
378 | Float_t etot=gMC->Etot(); | |
379 | hits[4]=etot; | |
ef51244a | 380 | Int_t iPart= gMC->TrackPid(); |
381 | Int_t partID=gMC->IdFromPDG(iPart); | |
382 | hits[5]=partID; | |
bc46b572 | 383 | Float_t ttime=gMC->TrackTime(); |
384 | hits[6]=ttime*1e9; | |
385 | edep=0; | |
386 | } | |
387 | if(gMC->IsTrackInside()) { | |
388 | Float_t de=gMC->Edep(); | |
389 | edep=edep+de; | |
f3ed336b | 390 | } |
391 | } | |
392 | if(gMC->IsTrackExiting()) { | |
393 | Float_t de=gMC->Edep(); | |
394 | edep=edep+de; | |
395 | hits[3]=edep*1e3; | |
396 | new(lhits[fNhits++]) AliSTARThit(fIshunt,gAlice->CurrentTrack(),vol,hits); | |
bc46b572 | 397 | } |
398 | //--------------------------------------------------------------------- | |
399 | } | |
400 | ||
401 | ||
402 | ||
403 | ||
404 | ||
405 | ||
406 | ||
407 | ||
408 |