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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 | **************************************************************************/ | |
88cb7938 | 15 | |
16 | /* $Id$ */ | |
17 | ||
b9a2d5e4 | 18 | ///////////////////////////////////////////////////////////////////// |
19 | // // | |
20 | // Forward Multiplicity detector based on Silicon version 0 // | |
21 | // | |
22 | //Begin Html | |
fe4da5cc | 23 | /* |
b9a2d5e4 | 24 | <img src="gif/AliFMDv0Class.gif"> |
fe4da5cc | 25 | */ |
b9a2d5e4 | 26 | //End Html |
27 | // // | |
28 | // // | |
29 | ////////////////////////////////////////////////////////////////////// | |
30 | ||
88cb7938 | 31 | #include <Riostream.h> |
32 | #include <stdlib.h> | |
33 | ||
34 | #include <TClonesArray.h> | |
35 | #include <TDirectory.h> | |
36 | #include <TFile.h> | |
b9a2d5e4 | 37 | #include <TGeometry.h> |
88cb7938 | 38 | #include <TLorentzVector.h> |
39 | #include <TMath.h> | |
40 | #include <TNode.h> | |
b9a2d5e4 | 41 | #include <TTUBE.h> |
b9a2d5e4 | 42 | #include <TTree.h> |
88cb7938 | 43 | #include <TVirtualMC.h> |
44 | ||
45 | #include "AliFMDdigit.h" | |
46 | #include "AliFMDhit.h" | |
37c55dc0 | 47 | #include "AliFMDv0.h" |
88cb7938 | 48 | #include "AliFMDv1.h" |
94de3818 | 49 | #include "AliMagF.h" |
88cb7938 | 50 | #include "AliRun.h" |
51 | ||
fe4da5cc | 52 | ClassImp(AliFMDv1) |
b9a2d5e4 | 53 | |
54 | //-------------------------------------------------------------------- | |
55 | AliFMDv1::AliFMDv1(const char *name, const char *title): | |
56 | AliFMD(name,title) | |
fe4da5cc | 57 | { |
58 | // | |
b9a2d5e4 | 59 | // Standart constructor for Forward Multiplicity Detector version 0 |
fe4da5cc | 60 | // |
b9a2d5e4 | 61 | fIdSens1=0; |
37c55dc0 | 62 | fIdSens2=0; |
63 | fIdSens3=0; | |
64 | fIdSens4=0; | |
65 | fIdSens5=0; | |
b9a2d5e4 | 66 | // setBufferSize(128000); |
fe4da5cc | 67 | } |
b9a2d5e4 | 68 | //------------------------------------------------------------------------- |
fe4da5cc | 69 | void AliFMDv1::CreateGeometry() |
70 | { | |
b9a2d5e4 | 71 | // |
72 | // Create the geometry of Forward Multiplicity Detector version 0 | |
fe4da5cc | 73 | // |
b9a2d5e4 | 74 | //Detector consists of 6 volumes: |
75 | // 1st covered pseudorapidity interval from 3.3 to 2.0 | |
76 | // and placed on 65cm in Z-direction; | |
77 | // 2nd - from 2.0 to 1.6 and Z=85 cm; | |
78 | // 3d - the same pseudorapidity interval as the 1st | |
79 | // but on the other side from the interaction point z=-65cm; | |
80 | // 4th - simmetricaly with the 2nd : | |
81 | // pseudorapidity from 2.0 to 1.6, Z=-85cm | |
82 | // 5th - from 3.6 to 4.7, Z=-270cm | |
83 | // 6th - from 4.5 to 5.5 , Z=-630cm. | |
84 | // Each part has 400mkm Si (sensetive area, detector itself), | |
85 | // 0.75cm of plastic simulated electronics material, | |
86 | // Al support ring 2cm thickness and 1cm width placed on | |
87 | // the outer radius of each Si disk; | |
88 | // | |
89 | // begin Html | |
fe4da5cc | 90 | /* |
b9a2d5e4 | 91 | <img src="gif/AliFMDv0.gif"> |
92 | */ | |
93 | // | |
0d630091 | 94 | |
37c55dc0 | 95 | |
b9a2d5e4 | 96 | Int_t *idtmed = fIdtmed->GetArray(); |
97 | ||
98 | Int_t ifmd; | |
99 | Int_t idrotm[999]; | |
100 | Float_t zfmd,par[3]; | |
37c55dc0 | 101 | char name[5], nameSi[5], nameSector[5], nameRing[5]; |
b9a2d5e4 | 102 | |
103 | Float_t rin[6], rout[6],zpos; | |
37c55dc0 | 104 | |
c45743f9 | 105 | Float_t etain[5]= {3.40, 2.29, 3.68, 2.29, 5.09}; |
106 | Float_t etaout[6]={2.01, 1.70, 2.28, 1.70, 3.68}; | |
dc8af42e | 107 | // Float_t z[6]={64., 85., -64., -85., -270., -630}; |
c45743f9 | 108 | Float_t z[6]={62.8, 75.2, -83.4, -75.2, -340.}; |
37c55dc0 | 109 | Float_t zDet=0.03; |
110 | Float_t zElectronic=0.1; | |
b9a2d5e4 | 111 | Float_t zSupport=1.; |
37c55dc0 | 112 | |
113 | Float_t zFMD=1.; | |
b9a2d5e4 | 114 | //------------------------------------------------------------------- |
115 | // FMD | |
116 | //------------------------------------------------------------------ | |
c45743f9 | 117 | cout<<" !!!!!!!!!!!New FMD geometry !!!!!!!!!"<<endl; |
b9a2d5e4 | 118 | |
119 | AliMatrix(idrotm[901], 90, 0, 90, 90, 180, 0); | |
120 | ||
37c55dc0 | 121 | // gMC->Gsvolu("GSI","TUBE", idtmed[1], par, 0); |
b9a2d5e4 | 122 | gMC->Gsvolu("GEL ","TUBE", idtmed[4], par, 0); |
123 | gMC->Gsvolu("GSUP","TUBE", idtmed[2], par, 0); | |
124 | ||
dc8af42e | 125 | for (ifmd =0; ifmd < 5; ifmd++){ |
b9a2d5e4 | 126 | |
37c55dc0 | 127 | sprintf(name,"FMD%d",ifmd+1); |
128 | sprintf(nameSi,"GSI%d",ifmd+1); | |
129 | sprintf(nameSector,"GSC%d",ifmd+1); | |
130 | sprintf(nameRing,"GRN%d",ifmd+1); | |
f075b58b | 131 | |
b9a2d5e4 | 132 | zfmd=TMath::Abs(z[ifmd]); |
f075b58b | 133 | |
b9a2d5e4 | 134 | AliFMD::Eta2Radius(etain[ifmd],zfmd,&rin[ifmd]); |
135 | AliFMD::Eta2Radius(etaout[ifmd],zfmd,&rout[ifmd]); | |
136 | ||
137 | par[0]=rin[ifmd]; // pipe size | |
138 | par[1]=rout[ifmd]; | |
139 | par[2]=zFMD/2; | |
140 | gMC->Gsvolu(name,"TUBE", idtmed[3], par, 3); | |
37c55dc0 | 141 | gMC->Gsvolu(nameSi,"TUBE", idtmed[1], par, 0); |
b9a2d5e4 | 142 | |
b9a2d5e4 | 143 | if (z[ifmd] < 0){ |
144 | gMC->Gspos(name,1,"ALIC",0,0,z[ifmd],0, "ONLY");} | |
145 | else { | |
146 | gMC->Gspos(name,1,"ALIC",0,0,z[ifmd],idrotm[901], "ONLY");} | |
147 | //Silicon detector | |
148 | par[2]=zDet/2; | |
149 | zpos=zFMD/2 -par[2]; | |
37c55dc0 | 150 | gMC->Gsposp(nameSi,ifmd+1,name,0,0,zpos,0, "ONLY",par,3); |
f075b58b | 151 | |
37c55dc0 | 152 | //Granularity |
f075b58b | 153 | fSectorsSi1=20; |
154 | fRingsSi1=256; | |
155 | fSectorsSi2=40; | |
156 | fRingsSi2=128; | |
37c55dc0 | 157 | if(ifmd==1||ifmd==3) |
158 | { | |
159 | gMC->Gsdvn(nameSector, nameSi , fSectorsSi2, 2); | |
160 | gMC->Gsdvn(nameRing, nameSector, fRingsSi2, 1); | |
161 | } | |
162 | else | |
163 | { | |
164 | gMC->Gsdvn(nameSector, nameSi , fSectorsSi1, 2); | |
165 | gMC->Gsdvn(nameRing, nameSector , fRingsSi1, 1); | |
166 | } | |
167 | ||
b9a2d5e4 | 168 | //Plastic slice for electronics |
169 | par[2]=zElectronic/2; | |
170 | zpos=zpos-zDet/2-par[2]; | |
171 | gMC->Gsposp("GEL ",ifmd+1,name,0,0,zpos,0, "ONLY",par,3); | |
172 | ||
173 | //Simple Al support | |
174 | par[1]=rout[ifmd]; | |
175 | par[0]=rout[ifmd]-2; | |
176 | par[2]=zSupport/2; | |
177 | zpos=zpos-zElectronic/2-par[2]; | |
37c55dc0 | 178 | // gMC->Gsposp("GSUP",ifmd+1,name,0,0,zpos,0, "ONLY",par,3); |
b9a2d5e4 | 179 | |
180 | ||
181 | } | |
b9a2d5e4 | 182 | |
183 | } | |
37c55dc0 | 184 | |
b9a2d5e4 | 185 | //------------------------------------------------------------------------ |
186 | void AliFMDv1::CreateMaterials() | |
187 | { | |
188 | Int_t isxfld = gAlice->Field()->Integ(); | |
189 | Float_t sxmgmx = gAlice->Field()->Max(); | |
190 | ||
191 | // Plastic CH | |
192 | Float_t aPlastic[2]={1.01,12.01}; | |
193 | Float_t zPlastic[2]={1,6}; | |
194 | Float_t wPlastic[2]={1,1}; | |
195 | Float_t denPlastic=1.03; | |
196 | // | |
197 | ||
198 | //*** Definition Of avaible FMD materials *** | |
199 | AliMaterial(0, "Si chip$", 28.0855,14.,2.33,9.36,999); | |
200 | AliMaterial(1, "Al supprt$", 26.980,13.,2.70,8.9,999); | |
201 | AliMaterial(2, "FMD Air$", 14.61, 7.3, .001205, 30423.,999); | |
202 | AliMixture( 5, "Plastic$",aPlastic,zPlastic,denPlastic,-2,wPlastic); | |
203 | ||
0d630091 | 204 | |
b9a2d5e4 | 205 | //** |
206 | AliMedium(1, "Si chip$", 0, 1, isxfld, sxmgmx, 1., .001, 1., .001, .001); | |
207 | AliMedium(2, "Al support$", 1, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001); | |
208 | AliMedium(3, "FMD air$", 2, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001); | |
209 | AliMedium(4, "Plastic$", 5, 0,isxfld, sxmgmx, 10., .01, 1., .003, .003); | |
210 | ||
0d630091 | 211 | |
0d630091 | 212 | |
fe4da5cc | 213 | } |
b9a2d5e4 | 214 | //--------------------------------------------------------------------- |
215 | void AliFMDv1::DrawDetector() | |
fe4da5cc | 216 | { |
b9a2d5e4 | 217 | // |
218 | // Draw a shaded view of the Forward multiplicity detector version 0 | |
219 | // | |
220 | ||
b9a2d5e4 | 221 | //Set ALIC mother transparent |
5d02ea6f | 222 | gMC->Gsatt("ALIC","SEEN",0); |
b9a2d5e4 | 223 | // |
224 | //Set volumes visible | |
b9a2d5e4 | 225 | gMC->Gsatt("FMD1","SEEN",1); |
226 | gMC->Gsatt("FMD2","SEEN",1); | |
227 | gMC->Gsatt("FMD3","SEEN",1); | |
228 | gMC->Gsatt("FMD4","SEEN",1); | |
229 | gMC->Gsatt("FMD5","SEEN",1); | |
230 | ||
231 | // | |
232 | gMC->Gdopt("hide","on"); | |
233 | gMC->Gdopt("shad","on"); | |
234 | gMC->SetClipBox("."); | |
235 | gMC->SetClipBox("*",0,1000,-1000,1000,-1000,1000); | |
236 | gMC->DefaultRange(); | |
237 | gMC->Gdraw("alic",40,30,0,12,9.5,.2,0.2); | |
238 | gMC->Gdhead(1111,"Forward multiplicity detector"); | |
239 | gMC->Gdopt("hide","off"); | |
240 | } | |
241 | //------------------------------------------------------------------- | |
242 | void AliFMDv1::Init() | |
243 | { | |
244 | // Initialises version 0 of the Forward Multiplicity Detector | |
245 | // | |
37c55dc0 | 246 | AliFMD::Init(); |
247 | fIdSens1=gMC->VolId("GRN1"); | |
248 | fIdSens2=gMC->VolId("GRN2"); | |
249 | fIdSens3=gMC->VolId("GRN3"); | |
250 | fIdSens4=gMC->VolId("GRN4"); | |
251 | fIdSens5=gMC->VolId("GRN5"); | |
252 | printf("*** FMD version 1 initialized ***\n"); | |
fe4da5cc | 253 | } |
254 | ||
b9a2d5e4 | 255 | //------------------------------------------------------------------- |
256 | ||
257 | void AliFMDv1::StepManager() | |
fe4da5cc | 258 | { |
259 | // | |
b9a2d5e4 | 260 | // Called for every step in the Forward Multiplicity Detector |
fe4da5cc | 261 | // |
b9a2d5e4 | 262 | Int_t id,copy,copy1,copy2; |
263 | static Float_t hits[9]; | |
264 | static Int_t vol[3]; | |
265 | static Float_t de; | |
266 | TLorentzVector pos; | |
267 | TLorentzVector mom; | |
fe4da5cc | 268 | |
0d630091 | 269 | |
b9a2d5e4 | 270 | TClonesArray &lhits = *fHits; |
b9a2d5e4 | 271 | if(!gMC->IsTrackAlive()) return; // particle has disappeared |
0d630091 | 272 | |
b9a2d5e4 | 273 | Float_t charge = gMC->TrackCharge(); |
274 | if(TMath::Abs(charge)<=0.) return; //take only charged particles | |
275 | ||
276 | // printf(" in StepManeger \n"); | |
277 | id=gMC->CurrentVolID(copy); | |
37c55dc0 | 278 | //((TGeant3*)gMC)->Gpcxyz(); |
fe4da5cc | 279 | |
b9a2d5e4 | 280 | // Check the sensetive volume |
37c55dc0 | 281 | if(id==fIdSens1||id==fIdSens2||id==fIdSens3||id==fIdSens4||id==fIdSens5) |
b9a2d5e4 | 282 | { |
283 | if(gMC->IsTrackEntering()) | |
284 | { | |
b9a2d5e4 | 285 | vol[2]=copy; |
286 | gMC->CurrentVolOffID(1,copy1); | |
287 | vol[1]=copy1; | |
288 | gMC->CurrentVolOffID(2,copy2); | |
289 | vol[0]=copy2; | |
f075b58b | 290 | |
b9a2d5e4 | 291 | gMC->TrackPosition(pos); |
292 | hits[0]=pos[0]; | |
293 | hits[1]=pos[1]; | |
294 | hits[2]=pos[2]; | |
f075b58b | 295 | |
b9a2d5e4 | 296 | gMC->TrackMomentum(mom); |
297 | hits[3]=mom[0]; | |
298 | hits[4]=mom[1]; | |
299 | hits[5]=mom[2]; | |
300 | ||
301 | Int_t iPart= gMC->TrackPid(); | |
302 | Int_t partId=gMC->IdFromPDG(iPart); | |
303 | hits[7]=partId; | |
304 | hits[8]=1e9*gMC->TrackTime(); | |
305 | de=0.; | |
b9a2d5e4 | 306 | } |
307 | if(gMC->IsTrackInside()){ | |
308 | de=de+1000.*gMC->Edep(); | |
309 | } | |
310 | ||
311 | if(gMC->IsTrackExiting() | |
312 | ||gMC->IsTrackDisappeared()|| | |
313 | gMC->IsTrackStop()) | |
314 | { | |
315 | hits[6]=de+1000.*gMC->Edep(); | |
642f15cf | 316 | new(lhits[fNhits++]) AliFMDhit(fIshunt,gAlice->GetCurrentTrackNumber(),vol,hits); |
b9a2d5e4 | 317 | } // IsTrackExiting() |
318 | } | |
319 | } | |
dc8af42e | 320 | //-------------------------------------------------------------------------- |
321 | ||
322 | void AliFMDv1::Response( Float_t Edep) | |
323 | { | |
324 | Float_t I=1.664*0.04*2.33/22400; // = 0.69e-6; | |
325 | Float_t chargeOnly=Edep/I; | |
326 | //Add noise ~500electrons | |
327 | Int_t charge=500; | |
328 | if (Edep>0) | |
329 | charge=Int_t(gRandom->Gaus(chargeOnly,500)); | |
330 | } | |
b9a2d5e4 | 331 | |
332 | ||
333 | ||
334 | ||
fe4da5cc | 335 | |
0d630091 | 336 |