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4c039060 | 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 | $Log$ | |
971579f6 | 18 | Revision 1.6 1999/11/12 15:04:00 fca |
19 | Modifications from A.Maevskaya | |
20 | ||
82fc3fb3 | 21 | Revision 1.5 1999/09/29 09:24:29 fca |
22 | Introduction of the Copyright and cvs Log | |
23 | ||
971579f6 | 24 | */ |
4c039060 | 25 | |
6ca40650 | 26 | ///////////////////////////////////////////////////////////////////// |
27 | // // | |
28 | // START ( T-zero) detector version 0 // | |
29 | // | |
30 | //Begin Html | |
31 | /* | |
32 | <img src="gif/AliSTARTv0Class.gif"> | |
33 | */ | |
34 | //End Html | |
35 | // // | |
36 | // // | |
37 | ////////////////////////////////////////////////////////////////////// | |
38 | ||
39 | #include <TMath.h> | |
40 | #include <TGeometry.h> | |
41 | #include <TTUBE.h> | |
42 | #include <TNode.h> | |
43 | ||
44 | #include "AliSTARTv0.h" | |
45 | #include "AliRun.h" | |
46 | #include "AliMC.h" | |
971579f6 | 47 | #include "AliSTARThit.h" |
6ca40650 | 48 | |
49 | #include <iostream.h> | |
50 | #include <fstream.h> | |
51 | ||
52 | //#include "TGeant3.h" | |
53 | #include <stdlib.h> | |
54 | ||
55 | ClassImp(AliSTARTv0) | |
56 | ||
57 | //-------------------------------------------------------------------- | |
58 | AliSTARTv0::AliSTARTv0(const char *name, const char *title): | |
59 | AliSTART(name,title) | |
60 | { | |
61 | // | |
62 | // Standart constructor for START Detector version 0 | |
63 | // | |
64 | fIdSens1=0; | |
65 | // setBufferSize(128000); | |
66 | } | |
67 | //------------------------------------------------------------------------- | |
68 | void AliSTARTv0::CreateGeometry() | |
69 | { | |
70 | // | |
71 | // Create the geometry of START Detector version 0 | |
72 | // | |
73 | // begin Html | |
74 | /* | |
75 | <img src="gif/AliSTARTv0.gif"> | |
76 | */ | |
77 | // | |
78 | ||
79 | ||
971579f6 | 80 | Int_t *idtmed = fIdtmed->GetArray(); |
6ca40650 | 81 | |
82 | Int_t is; | |
83 | Int_t idrotm[999]; | |
84 | Float_t x,y,z; | |
85 | ||
86 | Float_t pstart[3]={4.5,10.7,5.3}; | |
6ca40650 | 87 | Float_t ppmt[3]={0.,1.3,3.5}; |
88 | Float_t pdivider[3]={0.,1.2,1.75}; | |
89 | Float_t pdiv2[3]={0.,1.2,1.25}; | |
90 | Float_t pdiv1[3]={0.6,1.2,0.5}; | |
91 | Float_t ptop[3]={0.,1.3,1.5}; | |
92 | Float_t pbot[3]={0.6,1.2,0.1}; | |
93 | Float_t pglass[3]={1.2,1.3,2.}; | |
94 | Float_t pcer[3]={0.9,1.1,0.09}; | |
95 | Float_t psteel[3]={0.9,1.1,0.01}; | |
96 | Float_t ppins[3]={0.6,1.2,0.014}; | |
97 | Float_t phole[3]={0.6,1.2,0.015}; | |
98 | Float_t pknob[3]={0.5,0.6,0.4}; | |
99 | Float_t pknob_vac[3]={0.,0.5,0.4}; | |
100 | Float_t pknob_bot[3]={0.,0.6,0.05}; | |
101 | Float_t pribber[3] = {0.,1.2,2.413/2.}; | |
102 | Float_t presist[3] = {0.,1.2,0.087/2.}; | |
103 | ||
104 | Float_t zdet=75.; | |
105 | //------------------------------------------------------------------- | |
106 | // START volume | |
107 | //------------------------------------------------------------------- | |
971579f6 | 108 | |
6ca40650 | 109 | AliMatrix(idrotm[901], 90., 0., 90., 90., 180., 0.); |
971579f6 | 110 | gMC->Gsvolu("STRT","TUBE",idtmed[1],pstart,3); |
6ca40650 | 111 | gMC->Gspos("STRT",1,"ALIC",0.,0.,zdet,0,"ONLY"); |
112 | gMC->Gspos("STRT",2,"ALIC",0.,0.,-zdet,idrotm[901],"ONLY"); | |
113 | ||
114 | //START interior | |
971579f6 | 115 | gMC->Gsvolu("PMT ","TUBE",idtmed[3],ppmt,3); |
116 | gMC->Gsvolu("DIVI","TUBE",idtmed[3],pdivider,3); | |
6ca40650 | 117 | |
118 | // first ring: 13 units of Scintillator+PMT+divider | |
971579f6 | 119 | Double_t dang1 = 2*TMath::Pi()/12; |
120 | for (is=1; is<=12; is++) | |
121 | { | |
122 | x=6.5*TMath::Sin(is*dang1); | |
123 | y=6.5*TMath::Cos(is*dang1); | |
124 | z=-pstart[2]+ppmt[2]; | |
125 | gMC->Gspos("PMT ",is,"STRT",x,y,z,0,"ONLY"); | |
126 | printf("z PMT %f\n",z); | |
127 | z=z+ppmt[2]+pdiv2[2]; | |
128 | printf(" is %d, z Divider %f\n",is,z); | |
129 | gMC->Gspos("DIVI",is,"STRT",x,y,z,0,"ONLY"); | |
130 | } | |
131 | /* | |
6ca40650 | 132 | //second ring: 20 units of Scintillator+PMT+divider |
971579f6 | 133 | Double_t dang2 = 2*TMath::Pi()/26; |
134 | Double_t dang3 = 2*TMath::Pi()/20; | |
135 | for (is=14; is<=33;is++) | |
136 | { | |
137 | x=9.3*TMath::Sin(dang2+(is-13)*dang3); | |
138 | y=9.3*TMath::Cos(dang2+(is-13)*dang3); | |
6ca40650 | 139 | z=-pstart[2]+ppmt[2]; |
6ca40650 | 140 | gMC->Gspos("PMT ",is,"STRT",x,y,z,0,"ONLY"); |
971579f6 | 141 | z=z+ppmt[2]+pdiv2[2]; |
6ca40650 | 142 | gMC->Gspos("DIVI",is,"STRT",x,y,z,0,"ONLY"); |
971579f6 | 143 | } |
144 | */ | |
6ca40650 | 145 | // PMT |
146 | ||
971579f6 | 147 | // Entry window (glass) |
148 | gMC->Gsvolu("PTOP","TUBE",idtmed[6],ptop,3); | |
149 | z=-ppmt[2]+ptop[2]; | |
150 | gMC->Gspos("PTOP",1,"PMT ",0,0,z,0,"ONLY"); | |
151 | // printf("Z PTOP %f -ppmt[2] %f ptop[2] %f\n",z,-ppmt[2],ptop[2]); | |
152 | // Bottom glass | |
153 | gMC->Gsvolu("PBOT","TUBE",idtmed[6],pbot,3); | |
154 | z=ppmt[2]-pbot[2]; | |
155 | printf("Z bottom %f\n",z); | |
156 | gMC->Gspos("PBOT",1,"PMT ",0,0,z,0,"ONLY"); | |
157 | // Side cylinder glass | |
158 | gMC->Gsvolu("POUT","TUBE",idtmed[6],pglass,3); | |
159 | z=ppmt[2]-pglass[2]; | |
160 | // printf("Z glass %f\n",z); | |
161 | gMC->Gspos("POUT",1,"PMT ",0,0,z,0,"ONLY"); | |
162 | //PMT electrodes support structure | |
163 | gMC->Gsvolu("PCER","TUBE",idtmed[4],pcer,3); | |
164 | gMC->Gsvolu("PSTE","TUBE",idtmed[8],psteel,3); | |
165 | z=-ppmt[2]+2*ptop[2]+0.3;; | |
166 | // printf("Z Cer 1 %f\n",z); | |
167 | for (is=1; is<=15; is++) | |
6ca40650 | 168 | { |
971579f6 | 169 | z=z+psteel[2]+pcer[2]; |
170 | gMC->Gspos("PCER",is,"PMT",0,0,z,0,"ONLY"); | |
171 | z=z+psteel[2]+pcer[2]; | |
172 | gMC->Gspos("PSTE",is,"PMT",0,0,z,0,"ONLY"); | |
173 | } | |
174 | ||
175 | // Divider | |
176 | // Knob at the bottom of PMT baloon | |
177 | ||
178 | gMC->Gsvolu("KNOB","TUBE",idtmed[6],pknob,3); | |
179 | z=-pdivider[2]+pknob[2]; | |
180 | // printf("zknob %f\n",z); | |
181 | gMC->Gspos("KNOB",1,"DIVI",0,0,z,0,"ONLY"); | |
182 | gMC->Gsvolu("KNBO","TUBE",idtmed[6],pknob_bot,3); | |
183 | z=-pdivider[2]+2*pknob[2]+pknob_bot[2]; | |
184 | // printf("knobbot %f\n",z); | |
185 | gMC->Gspos("KNBO",1,"DIVI ",0,0,z,0,"ONLY"); | |
186 | gMC->Gsvolu("KNVA","TUBE",idtmed[6],pknob_vac,3); | |
187 | z=-pdivider[2]+pknob_vac[2]; | |
188 | // printf("knobvac %f\n",z); | |
189 | gMC->Gspos("KNVA",1,"DIVI",0,0,z,0,"ONLY"); | |
190 | //Steel pins + pin holes | |
191 | gMC->Gsvolu("PINS","TUBE",idtmed[8],ppins,3); | |
192 | z=-pdivider[2]+ppins[2]; | |
193 | gMC->Gspos("PINS",1,"DIVI",0,0,z,0,"ONLY"); | |
194 | gMC->Gsvolu("HOLE","TUBE",idtmed[11],phole,3); | |
195 | z=-pdivider[2]+2*ppins[2]+phole[2]; | |
196 | gMC->Gspos("HOLE",1,"DIVI",0,0,z,0,"ONLY"); | |
197 | ||
198 | //Socket | |
199 | gMC->Gsvolu("DIV1","TUBE",idtmed[4],pdiv1,3); | |
200 | z=-pdivider[2]+pdiv1[2]; | |
201 | gMC->Gspos("DIV1",1,"DIVI",0,0,z,0,"ONLY"); | |
202 | //Resistors | |
203 | gMC->Gsvolu("DIV2","TUBE",idtmed[1],pdiv2,3); | |
204 | z=pdivider[2]-pdiv2[2]; | |
205 | gMC->Gspos("DIV2",1,"DIVI",0,0,z,0,"ONLY"); | |
206 | gMC->Gsvolu("DRES","TUBE",idtmed[4],presist,3); | |
207 | z=-pdiv2[2]+presist[2]; | |
208 | gMC->Gspos("DRES",1,"DIV2",0,0,z,0,"ONLY"); | |
209 | gMC->Gsvolu("DRIB","TUBE",idtmed[9],pribber,3); | |
210 | z=pdiv2[2]-pribber[2]; | |
211 | gMC->Gspos("DRIB",1,"DIV2",0,0,z,0,"ONLY"); | |
212 | // printf("z DRIB %f\n",z); | |
213 | ||
214 | ||
6ca40650 | 215 | } |
216 | //------------------------------------------------------------------------ | |
217 | void AliSTARTv0::CreateMaterials() | |
218 | { | |
219 | Int_t ISXFLD = gAlice->Field()->Integ(); | |
220 | Float_t SXMGMX = gAlice->Field()->Max(); | |
221 | Float_t a,z,d,radl,absl,buf[1]; | |
222 | Int_t nbuf; | |
223 | ||
224 | // Scintillator CH | |
82fc3fb3 | 225 | Float_t ascin[2]={1.01,12.01}; |
226 | Float_t zscin[2]={1,6}; | |
227 | Float_t wscin[2]={1,1}; | |
228 | Float_t denscin=1.03; | |
6ca40650 | 229 | // PMT glass SiO2 |
971579f6 | 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; | |
6ca40650 | 234 | // Ceramic 97.2% Al2O3 , 2.8% SiO2 |
971579f6 | 235 | Float_t acer[2],zcer[2],wcer[2]={0.972,0.028}; |
236 | Float_t aal2o3[2] = { 26.981539,15.9994 }; | |
237 | Float_t zal2o3[2] = { 13.,8. }; | |
238 | Float_t wal2o3[2] = { 2.,3. }; | |
239 | Float_t denscer = 3.6; | |
6ca40650 | 240 | |
241 | // Brass 80% Cu, 20% Zn | |
242 | Float_t abrass[2] = {63.546,65.39}; | |
243 | Float_t zbrass[2] = {29,30}; | |
244 | Float_t wbrass[2] = {0.8,0.2}; | |
245 | Float_t denbrass=8.96; | |
246 | ||
247 | //Ribber C6H12S | |
248 | Float_t aribber[3] = {12.,1.,32.}; | |
249 | Float_t zribber[3] = {6.,1.,16.}; | |
250 | Float_t wribber[3] = {6.,12.,1.}; | |
251 | Float_t denribber=0.8; | |
971579f6 | 252 | /* |
253 | // Definition Cherenkov parameters | |
254 | 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 }; | |
255 | Float_t rindex_quarz[14] = { 1.528309,1.533333, | |
256 | 1.538243,1.544223,1.550568,1.55777, | |
257 | 1.565463,1.574765,1.584831,1.597027, | |
258 | 1.611858,1.6277,1.6472,1.6724 }; | |
6ca40650 | 259 | |
971579f6 | 260 | Float_t absco_quarz[14] = { 20.126,16.27,13.49,11.728,9.224,8.38,7.44,7.17, |
261 | 6.324,4.483,1.6,.323,.073,0. }; | |
262 | */ | |
263 | // Int_t *idtmed = fIdtmed->GetArray()-999; | |
264 | ||
265 | // TGeant3 *geant3 = (TGeant3*) gMC; | |
266 | ||
6ca40650 | 267 | //*** Definition Of avaible START materials *** |
971579f6 | 268 | AliMaterial(0, "START Steel$", 55.850,26.,7.87,1.76,999); |
269 | AliMaterial(1, "START Vacuum$", 1.e-16,1.e-16,1.e-16,1.e16,999); | |
270 | AliMaterial(2, "START Air$", 14.61, 7.3, .001205, 30423.,999); | |
271 | ||
272 | AliMixture( 3, "Al2O3 $", aal2o3, zal2o3, denscer, -2, wal2o3); | |
273 | AliMixture( 4, "PMT glass $",aglass,zglass,dglass,-2,wglass); | |
274 | char namate[21]; | |
275 | gMC->Gfmate((*fIdmate)[3], namate, a, z, d, radl, absl, buf, nbuf); | |
276 | acer[0]=a; | |
277 | zcer[0]=z; | |
278 | gMC->Gfmate((*fIdmate)[4], namate, a, z, d, radl, absl, buf, nbuf); | |
279 | acer[1]=a; | |
280 | zcer[1]=z; | |
281 | ||
282 | AliMixture( 9, "Ceramic $", acer, zcer, denscer, 2, wcer); | |
283 | AliMixture( 5, "Scintillator$",ascin,zscin,denscin,-2,wscin); | |
284 | AliMixture( 6, "Brass $", abrass, zbrass, denbrass, 2, wbrass); | |
285 | ||
286 | AliMixture( 7, "Ribber $",aribber,zribber,denribber,-3,wribber); | |
287 | ||
288 | ||
289 | AliMedium(1, "START Air$", 2, 0, ISXFLD, SXMGMX, 10., .1, 1., .003, .003); | |
290 | AliMedium(2, "Scintillator$", 5, 1, ISXFLD, SXMGMX, 10., .01, 1., .003, .003); | |
291 | AliMedium(3, "Vacuum$", 1, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003); | |
292 | AliMedium(4, "Ceramic$", 9, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003); | |
293 | AliMedium(6, "Glass$", 4, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003); | |
294 | AliMedium(8, "Steel$", 0, 0, ISXFLD, SXMGMX, 1., .001, 1., .001, .001); | |
295 | AliMedium(11, "Brass $", 6, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003); | |
296 | AliMedium(9, "Ribber $", 7, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003); | |
6ca40650 | 297 | |
971579f6 | 298 | // geant3->Gsckov(idtmed[2105], 14, ppckov, absco_quarz, effic_all,rindex_quarz); |
6ca40650 | 299 | |
300 | } | |
301 | //--------------------------------------------------------------------- | |
77ee006c | 302 | void AliSTARTv0::DrawModule() |
6ca40650 | 303 | { |
304 | // | |
305 | // Draw a shaded view of the Forward multiplicity detector version 0 | |
306 | // | |
971579f6 | 307 | |
308 | //Set ALIC mother transparent | |
309 | gMC->Gsatt("ALIC","SEEN",0); | |
310 | // | |
311 | //Set volumes visible | |
312 | gMC->Gsatt("STRT","SEEN",0); | |
313 | gMC->Gsatt("PMT ","SEEN",1); | |
314 | gMC->Gsatt("DIVI","SEEN",1); | |
315 | // | |
316 | gMC->Gdopt("hide","on"); | |
317 | gMC->Gdopt("shad","on"); | |
318 | gMC->SetClipBox("."); | |
319 | gMC->SetClipBox("*",0,1000,-1000,1000,-1000,1000); | |
320 | gMC->DefaultRange(); | |
321 | gMC->Gdraw("alic",40,30,0,12,9.5,.7,0.7); | |
322 | gMC->Gdhead(1111,"T-Zero detector"); | |
323 | gMC->Gdopt("hide","off"); | |
6ca40650 | 324 | } |
971579f6 | 325 | |
6ca40650 | 326 | //------------------------------------------------------------------- |
327 | void AliSTARTv0::Init() | |
328 | { | |
971579f6 | 329 | // Initialises version 0 of the Forward Multiplicity Detector |
330 | // | |
331 | //Int_t *idtmed = gAlice->Idtmed(); | |
ca7295b2 | 332 | AliSTART::Init(); |
333 | fIdSens1=gMC->VolId("PTOP"); | |
334 | printf("*** START version 0 initialized ***\n"); | |
6ca40650 | 335 | |
336 | } | |
337 | ||
338 | //------------------------------------------------------------------- | |
339 | ||
340 | void AliSTARTv0::StepManager() | |
341 | { | |
342 | // | |
343 | // Called for every step in the START Detector | |
344 | // | |
345 | Int_t id,copy,copy1; | |
346 | static Float_t hits[7]; | |
347 | static Float_t edep; | |
348 | static Int_t vol[2]; | |
ca7295b2 | 349 | TLorentzVector pos; |
971579f6 | 350 | |
6ca40650 | 351 | TClonesArray &lhits = *fHits; |
6ca40650 | 352 | |
353 | if(!gMC->IsTrackAlive()) return; // particle has disappeared | |
354 | Float_t charge = gMC->TrackCharge(); | |
355 | if(TMath::Abs(charge)<=0.) return; //take only charged particles | |
971579f6 | 356 | // gMC->Gpcxyz(); |
357 | id=gMC->CurrentVolID(copy); | |
358 | ||
359 | ||
360 | // printf("gMC->ckine->ipart %d",gMC->ckine->ipart); | |
361 | // Check the sensetive volume | |
362 | if(id==fIdSens1 ) { | |
363 | if(gMC->IsTrackEntering()) { | |
364 | gMC->CurrentVolOffID(2,copy); | |
365 | vol[0]=copy; | |
366 | gMC->CurrentVolOffID(1,copy1); | |
367 | vol[1]=copy1; | |
368 | gMC->TrackPosition(pos); | |
369 | hits[0] = pos[0]; | |
370 | hits[1] = pos[1]; | |
371 | hits[2] = pos[2]; | |
372 | Float_t etot=gMC->Etot(); | |
373 | hits[4]=etot; | |
374 | Int_t part= gMC->TrackPid(); | |
375 | hits[5]=part; | |
376 | Float_t ttime=gMC->TrackTime(); | |
377 | hits[6]=ttime*1e9; | |
378 | edep=0; | |
6ca40650 | 379 | } |
971579f6 | 380 | if(gMC->IsTrackInside()) { |
381 | Float_t de=gMC->Edep(); | |
382 | edep=edep+de; | |
383 | // printf ("E deposition %f\n",edep); | |
384 | // for (i=0; i<=6; i++){ | |
385 | // printf(" HITS on START inside %f\n",hits[i]); } | |
6ca40650 | 386 | } |
971579f6 | 387 | if(gMC->IsTrackExiting()) { |
388 | Float_t de=gMC->Edep(); | |
389 | edep=edep+de; | |
390 | hits[3]=edep*1e3; | |
391 | ||
392 | // for (i=0; i<=6; i++){ | |
393 | // printf(" HITS on START Exit %f\n",hits[i]); } | |
394 | //for (i=0; i<=1; i++) { printf("START vol %d\n",vol[i]);} | |
395 | ||
396 | new(lhits[fNhits++]) AliSTARThit(fIshunt,gAlice->CurrentTrack(),vol,hits); | |
397 | } | |
398 | } | |
399 | //--------------------------------------------------------------------- | |
400 | } | |
401 | ||
402 | ||
403 | ||
6ca40650 | 404 | |
405 | ||
406 | ||
407 | ||
408 | ||
409 |