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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 | **************************************************************************/ | |
b9a2d5e4 | 15 | ///////////////////////////////////////////////////////////////////// |
16 | // // | |
17 | // Forward Multiplicity detector based on Silicon version 0 // | |
18 | // | |
19 | //Begin Html | |
fe4da5cc | 20 | /* |
b9a2d5e4 | 21 | <img src="gif/AliFMDv0Class.gif"> |
fe4da5cc | 22 | */ |
b9a2d5e4 | 23 | //End Html |
24 | // // | |
25 | // // | |
26 | ////////////////////////////////////////////////////////////////////// | |
27 | ||
28 | #include <TMath.h> | |
29 | #include <TGeometry.h> | |
30 | #include <TTUBE.h> | |
31 | #include <TFile.h> | |
32 | #include <TTree.h> | |
33 | #include <TNode.h> | |
34 | #include <TClonesArray.h> | |
35 | #include <TLorentzVector.h> | |
36 | #include <TDirectory.h> | |
fe4da5cc | 37 | #include "AliFMDv1.h" |
37c55dc0 | 38 | #include "AliFMDv0.h" |
b9a2d5e4 | 39 | #include "AliRun.h" |
fe4da5cc | 40 | #include "AliMC.h" |
b9a2d5e4 | 41 | #include <iostream.h> |
42 | #include <fstream.h> | |
94de3818 | 43 | #include "AliMagF.h" |
b9a2d5e4 | 44 | #include "AliFMDhit.h" |
45 | #include "AliFMDdigit.h" | |
f707b5c1 | 46 | #include <stdlib.h> |
b9a2d5e4 | 47 | //#include "TGeant3.h" |
48 | //class TGeant3; | |
fe4da5cc | 49 | ClassImp(AliFMDv1) |
b9a2d5e4 | 50 | |
51 | //-------------------------------------------------------------------- | |
52 | AliFMDv1::AliFMDv1(const char *name, const char *title): | |
53 | AliFMD(name,title) | |
fe4da5cc | 54 | { |
55 | // | |
b9a2d5e4 | 56 | // Standart constructor for Forward Multiplicity Detector version 0 |
fe4da5cc | 57 | // |
b9a2d5e4 | 58 | fIdSens1=0; |
37c55dc0 | 59 | fIdSens2=0; |
60 | fIdSens3=0; | |
61 | fIdSens4=0; | |
62 | fIdSens5=0; | |
b9a2d5e4 | 63 | // setBufferSize(128000); |
fe4da5cc | 64 | } |
b9a2d5e4 | 65 | //------------------------------------------------------------------------- |
fe4da5cc | 66 | void AliFMDv1::CreateGeometry() |
67 | { | |
b9a2d5e4 | 68 | // |
69 | // Create the geometry of Forward Multiplicity Detector version 0 | |
fe4da5cc | 70 | // |
b9a2d5e4 | 71 | //Detector consists of 6 volumes: |
72 | // 1st covered pseudorapidity interval from 3.3 to 2.0 | |
73 | // and placed on 65cm in Z-direction; | |
74 | // 2nd - from 2.0 to 1.6 and Z=85 cm; | |
75 | // 3d - the same pseudorapidity interval as the 1st | |
76 | // but on the other side from the interaction point z=-65cm; | |
77 | // 4th - simmetricaly with the 2nd : | |
78 | // pseudorapidity from 2.0 to 1.6, Z=-85cm | |
79 | // 5th - from 3.6 to 4.7, Z=-270cm | |
80 | // 6th - from 4.5 to 5.5 , Z=-630cm. | |
81 | // Each part has 400mkm Si (sensetive area, detector itself), | |
82 | // 0.75cm of plastic simulated electronics material, | |
83 | // Al support ring 2cm thickness and 1cm width placed on | |
84 | // the outer radius of each Si disk; | |
85 | // | |
86 | // begin Html | |
fe4da5cc | 87 | /* |
b9a2d5e4 | 88 | <img src="gif/AliFMDv0.gif"> |
89 | */ | |
90 | // | |
0d630091 | 91 | |
37c55dc0 | 92 | |
b9a2d5e4 | 93 | Int_t *idtmed = fIdtmed->GetArray(); |
94 | ||
95 | Int_t ifmd; | |
96 | Int_t idrotm[999]; | |
97 | Float_t zfmd,par[3]; | |
37c55dc0 | 98 | char name[5], nameSi[5], nameSector[5], nameRing[5]; |
b9a2d5e4 | 99 | |
100 | Float_t rin[6], rout[6],zpos; | |
37c55dc0 | 101 | |
c45743f9 | 102 | Float_t etain[5]= {3.40, 2.29, 3.68, 2.29, 5.09}; |
103 | Float_t etaout[6]={2.01, 1.70, 2.28, 1.70, 3.68}; | |
dc8af42e | 104 | // Float_t z[6]={64., 85., -64., -85., -270., -630}; |
c45743f9 | 105 | Float_t z[6]={62.8, 75.2, -83.4, -75.2, -340.}; |
37c55dc0 | 106 | Float_t zDet=0.03; |
107 | Float_t zElectronic=0.1; | |
b9a2d5e4 | 108 | Float_t zSupport=1.; |
37c55dc0 | 109 | |
110 | Float_t zFMD=1.; | |
b9a2d5e4 | 111 | //------------------------------------------------------------------- |
112 | // FMD | |
113 | //------------------------------------------------------------------ | |
c45743f9 | 114 | cout<<" !!!!!!!!!!!New FMD geometry !!!!!!!!!"<<endl; |
b9a2d5e4 | 115 | |
116 | AliMatrix(idrotm[901], 90, 0, 90, 90, 180, 0); | |
117 | ||
37c55dc0 | 118 | // gMC->Gsvolu("GSI","TUBE", idtmed[1], par, 0); |
b9a2d5e4 | 119 | gMC->Gsvolu("GEL ","TUBE", idtmed[4], par, 0); |
120 | gMC->Gsvolu("GSUP","TUBE", idtmed[2], par, 0); | |
121 | ||
dc8af42e | 122 | for (ifmd =0; ifmd < 5; ifmd++){ |
b9a2d5e4 | 123 | |
37c55dc0 | 124 | sprintf(name,"FMD%d",ifmd+1); |
125 | sprintf(nameSi,"GSI%d",ifmd+1); | |
126 | sprintf(nameSector,"GSC%d",ifmd+1); | |
127 | sprintf(nameRing,"GRN%d",ifmd+1); | |
f075b58b | 128 | |
b9a2d5e4 | 129 | zfmd=TMath::Abs(z[ifmd]); |
f075b58b | 130 | |
b9a2d5e4 | 131 | AliFMD::Eta2Radius(etain[ifmd],zfmd,&rin[ifmd]); |
132 | AliFMD::Eta2Radius(etaout[ifmd],zfmd,&rout[ifmd]); | |
133 | ||
134 | par[0]=rin[ifmd]; // pipe size | |
135 | par[1]=rout[ifmd]; | |
136 | par[2]=zFMD/2; | |
137 | gMC->Gsvolu(name,"TUBE", idtmed[3], par, 3); | |
37c55dc0 | 138 | gMC->Gsvolu(nameSi,"TUBE", idtmed[1], par, 0); |
b9a2d5e4 | 139 | |
b9a2d5e4 | 140 | if (z[ifmd] < 0){ |
141 | gMC->Gspos(name,1,"ALIC",0,0,z[ifmd],0, "ONLY");} | |
142 | else { | |
143 | gMC->Gspos(name,1,"ALIC",0,0,z[ifmd],idrotm[901], "ONLY");} | |
144 | //Silicon detector | |
145 | par[2]=zDet/2; | |
146 | zpos=zFMD/2 -par[2]; | |
37c55dc0 | 147 | gMC->Gsposp(nameSi,ifmd+1,name,0,0,zpos,0, "ONLY",par,3); |
f075b58b | 148 | |
37c55dc0 | 149 | //Granularity |
f075b58b | 150 | fSectorsSi1=20; |
151 | fRingsSi1=256; | |
152 | fSectorsSi2=40; | |
153 | fRingsSi2=128; | |
37c55dc0 | 154 | if(ifmd==1||ifmd==3) |
155 | { | |
156 | gMC->Gsdvn(nameSector, nameSi , fSectorsSi2, 2); | |
157 | gMC->Gsdvn(nameRing, nameSector, fRingsSi2, 1); | |
158 | } | |
159 | else | |
160 | { | |
161 | gMC->Gsdvn(nameSector, nameSi , fSectorsSi1, 2); | |
162 | gMC->Gsdvn(nameRing, nameSector , fRingsSi1, 1); | |
163 | } | |
164 | ||
b9a2d5e4 | 165 | //Plastic slice for electronics |
166 | par[2]=zElectronic/2; | |
167 | zpos=zpos-zDet/2-par[2]; | |
168 | gMC->Gsposp("GEL ",ifmd+1,name,0,0,zpos,0, "ONLY",par,3); | |
169 | ||
170 | //Simple Al support | |
171 | par[1]=rout[ifmd]; | |
172 | par[0]=rout[ifmd]-2; | |
173 | par[2]=zSupport/2; | |
174 | zpos=zpos-zElectronic/2-par[2]; | |
37c55dc0 | 175 | // gMC->Gsposp("GSUP",ifmd+1,name,0,0,zpos,0, "ONLY",par,3); |
b9a2d5e4 | 176 | |
177 | ||
178 | } | |
b9a2d5e4 | 179 | |
180 | } | |
37c55dc0 | 181 | |
b9a2d5e4 | 182 | //------------------------------------------------------------------------ |
183 | void AliFMDv1::CreateMaterials() | |
184 | { | |
185 | Int_t isxfld = gAlice->Field()->Integ(); | |
186 | Float_t sxmgmx = gAlice->Field()->Max(); | |
187 | ||
188 | // Plastic CH | |
189 | Float_t aPlastic[2]={1.01,12.01}; | |
190 | Float_t zPlastic[2]={1,6}; | |
191 | Float_t wPlastic[2]={1,1}; | |
192 | Float_t denPlastic=1.03; | |
193 | // | |
194 | ||
195 | //*** Definition Of avaible FMD materials *** | |
196 | AliMaterial(0, "Si chip$", 28.0855,14.,2.33,9.36,999); | |
197 | AliMaterial(1, "Al supprt$", 26.980,13.,2.70,8.9,999); | |
198 | AliMaterial(2, "FMD Air$", 14.61, 7.3, .001205, 30423.,999); | |
199 | AliMixture( 5, "Plastic$",aPlastic,zPlastic,denPlastic,-2,wPlastic); | |
200 | ||
0d630091 | 201 | |
b9a2d5e4 | 202 | //** |
203 | AliMedium(1, "Si chip$", 0, 1, isxfld, sxmgmx, 1., .001, 1., .001, .001); | |
204 | AliMedium(2, "Al support$", 1, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001); | |
205 | AliMedium(3, "FMD air$", 2, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001); | |
206 | AliMedium(4, "Plastic$", 5, 0,isxfld, sxmgmx, 10., .01, 1., .003, .003); | |
207 | ||
0d630091 | 208 | |
0d630091 | 209 | |
fe4da5cc | 210 | } |
b9a2d5e4 | 211 | //--------------------------------------------------------------------- |
212 | void AliFMDv1::DrawDetector() | |
fe4da5cc | 213 | { |
b9a2d5e4 | 214 | // |
215 | // Draw a shaded view of the Forward multiplicity detector version 0 | |
216 | // | |
217 | ||
218 | AliMC* pMC = AliMC::GetMC(); | |
219 | ||
220 | //Set ALIC mother transparent | |
221 | pMC->Gsatt("ALIC","SEEN",0); | |
222 | // | |
223 | //Set volumes visible | |
b9a2d5e4 | 224 | gMC->Gsatt("FMD1","SEEN",1); |
225 | gMC->Gsatt("FMD2","SEEN",1); | |
226 | gMC->Gsatt("FMD3","SEEN",1); | |
227 | gMC->Gsatt("FMD4","SEEN",1); | |
228 | gMC->Gsatt("FMD5","SEEN",1); | |
229 | ||
230 | // | |
231 | gMC->Gdopt("hide","on"); | |
232 | gMC->Gdopt("shad","on"); | |
233 | gMC->SetClipBox("."); | |
234 | gMC->SetClipBox("*",0,1000,-1000,1000,-1000,1000); | |
235 | gMC->DefaultRange(); | |
236 | gMC->Gdraw("alic",40,30,0,12,9.5,.2,0.2); | |
237 | gMC->Gdhead(1111,"Forward multiplicity detector"); | |
238 | gMC->Gdopt("hide","off"); | |
239 | } | |
240 | //------------------------------------------------------------------- | |
241 | void AliFMDv1::Init() | |
242 | { | |
243 | // Initialises version 0 of the Forward Multiplicity Detector | |
244 | // | |
37c55dc0 | 245 | AliMC* gMC=AliMC::GetMC(); |
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; |
271 | AliMC* gMC=AliMC::GetMC(); | |
272 | if(!gMC->IsTrackAlive()) return; // particle has disappeared | |
0d630091 | 273 | |
b9a2d5e4 | 274 | Float_t charge = gMC->TrackCharge(); |
275 | if(TMath::Abs(charge)<=0.) return; //take only charged particles | |
276 | ||
277 | // printf(" in StepManeger \n"); | |
278 | id=gMC->CurrentVolID(copy); | |
37c55dc0 | 279 | //((TGeant3*)gMC)->Gpcxyz(); |
fe4da5cc | 280 | |
b9a2d5e4 | 281 | // Check the sensetive volume |
37c55dc0 | 282 | if(id==fIdSens1||id==fIdSens2||id==fIdSens3||id==fIdSens4||id==fIdSens5) |
b9a2d5e4 | 283 | { |
284 | if(gMC->IsTrackEntering()) | |
285 | { | |
b9a2d5e4 | 286 | vol[2]=copy; |
287 | gMC->CurrentVolOffID(1,copy1); | |
288 | vol[1]=copy1; | |
289 | gMC->CurrentVolOffID(2,copy2); | |
290 | vol[0]=copy2; | |
f075b58b | 291 | |
b9a2d5e4 | 292 | gMC->TrackPosition(pos); |
293 | hits[0]=pos[0]; | |
294 | hits[1]=pos[1]; | |
295 | hits[2]=pos[2]; | |
f075b58b | 296 | |
b9a2d5e4 | 297 | gMC->TrackMomentum(mom); |
298 | hits[3]=mom[0]; | |
299 | hits[4]=mom[1]; | |
300 | hits[5]=mom[2]; | |
301 | ||
302 | Int_t iPart= gMC->TrackPid(); | |
303 | Int_t partId=gMC->IdFromPDG(iPart); | |
304 | hits[7]=partId; | |
305 | hits[8]=1e9*gMC->TrackTime(); | |
306 | de=0.; | |
b9a2d5e4 | 307 | } |
308 | if(gMC->IsTrackInside()){ | |
309 | de=de+1000.*gMC->Edep(); | |
310 | } | |
311 | ||
312 | if(gMC->IsTrackExiting() | |
313 | ||gMC->IsTrackDisappeared()|| | |
314 | gMC->IsTrackStop()) | |
315 | { | |
316 | hits[6]=de+1000.*gMC->Edep(); | |
37c55dc0 | 317 | new(lhits[fNhits++]) AliFMDhit(fIshunt,gAlice->CurrentTrack(),vol,hits); |
b9a2d5e4 | 318 | } // IsTrackExiting() |
319 | } | |
320 | } | |
dc8af42e | 321 | //-------------------------------------------------------------------------- |
322 | ||
323 | void AliFMDv1::Response( Float_t Edep) | |
324 | { | |
325 | Float_t I=1.664*0.04*2.33/22400; // = 0.69e-6; | |
326 | Float_t chargeOnly=Edep/I; | |
327 | //Add noise ~500electrons | |
328 | Int_t charge=500; | |
329 | if (Edep>0) | |
330 | charge=Int_t(gRandom->Gaus(chargeOnly,500)); | |
331 | } | |
b9a2d5e4 | 332 | |
333 | ||
334 | ||
335 | ||
fe4da5cc | 336 | |
0d630091 | 337 |