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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 | $Log$ | |
6b677e96 | 18 | Revision 1.23 2002/10/23 07:24:57 alibrary |
19 | Introducing Riostream.h | |
20 | ||
70479d0e | 21 | Revision 1.22 2002/10/14 14:57:29 hristov |
22 | Merging the VirtualMC branch to the main development branch (HEAD) | |
23 | ||
b9d0a01d | 24 | Revision 1.20.6.2 2002/07/24 10:07:21 alibrary |
25 | Updating VirtualMC | |
26 | ||
27 | Revision 1.21 2002/07/23 10:02:46 morsch | |
28 | All volume names start with "S". | |
29 | ||
b74f1c6a | 30 | Revision 1.20 2001/10/30 12:18:45 morsch |
31 | Place station 3 into DDIP only if DDIP is present. | |
32 | ||
82e22b99 | 33 | Revision 1.19 2001/07/17 09:51:38 morsch |
34 | Place station 3 inside Dipole. | |
35 | ||
afa281f0 | 36 | Revision 1.18 2001/04/06 11:24:43 morsch |
37 | Dependency on implementations of AliSegmentation and AliMUONResponse moved to AliMUONFactory class. | |
38 | Static method Build() builds the MUON system out of chambers, segmentation and response. | |
39 | ||
be3bb6c1 | 40 | Revision 1.17 2001/03/17 10:07:20 morsch |
41 | Correct inconsistent variable name / method name / comments. | |
42 | ||
2eb55fab | 43 | Revision 1.16 2001/01/27 08:50:50 morsch |
44 | Call non default constructors of segmentation classes. | |
45 | ||
c687f06a | 46 | Revision 1.15 2001/01/17 20:57:45 hristov |
47 | Unused variable removed | |
48 | ||
a7e8b51a | 49 | Revision 1.14 2000/12/21 22:42:55 morsch |
50 | Constructor contains default set-up for segmentation. | |
51 | Record charged particles only. | |
52 | ||
9fde056a | 53 | Revision 1.13 2000/10/06 10:03:38 morsch |
54 | Call to gMC->VolId() moved to Init() | |
55 | ||
b9046b8f | 56 | Revision 1.12 2000/10/02 21:28:09 fca |
57 | Removal of useless dependecies via forward declarations | |
58 | ||
94de3818 | 59 | Revision 1.11 2000/06/27 07:31:07 morsch |
60 | fChambers = 0; deleted from constructor. | |
61 | ||
c20a5a2a | 62 | Revision 1.10 2000/06/26 14:02:38 morsch |
63 | Add class AliMUONConstants with MUON specific constants using static memeber data and access methods. | |
64 | ||
f665c1ea | 65 | Revision 1.9 2000/06/15 07:58:49 morsch |
66 | Code from MUON-dev joined | |
67 | ||
a9e2aefa | 68 | Revision 1.8.4.9 2000/06/12 19:20:49 morsch |
69 | Constructor sets default geometry, segmentation and response parameters. | |
70 | ||
71 | Revision 1.8.4.8 2000/06/09 21:55:28 morsch | |
72 | Most coding rule violations corrected. | |
73 | ||
74 | Revision 1.8.4.7 2000/05/02 13:15:18 morsch | |
75 | Coding rule violations RS3, RN13 corected | |
76 | ||
77 | Revision 1.8.4.6 2000/05/02 10:24:26 morsch | |
78 | Public access to fdGas and fdAlu of AliMUONChamber replaced by getters. | |
79 | ||
80 | Revision 1.8.4.5 2000/04/26 19:58:47 morsch | |
81 | Obsolete reference to trig_ removed. | |
82 | ||
83 | Revision 1.8.4.4 2000/04/19 19:42:47 morsch | |
84 | change NCH to kNCH | |
85 | ||
86 | Revision 1.8.4.3 2000/02/17 08:17:43 morsch | |
87 | Gammas and neutrons are also scored in the stepmanager | |
4c039060 | 88 | */ |
89 | ||
fe4da5cc | 90 | ///////////////////////////////////////////////////////// |
91 | // Manager and hits classes for set:MUON version 0 // | |
92 | ///////////////////////////////////////////////////////// | |
93 | ||
94 | #include <TTUBE.h> | |
95 | #include <TNode.h> | |
96 | #include <TRandom.h> | |
a897a37a | 97 | #include <TLorentzVector.h> |
70479d0e | 98 | #include <Riostream.h> |
fe4da5cc | 99 | |
100 | #include "AliMUONv0.h" | |
a9e2aefa | 101 | #include "AliMUONChamber.h" |
fe4da5cc | 102 | #include "AliRun.h" |
94de3818 | 103 | #include "AliMagF.h" |
a9e2aefa | 104 | #include "AliMUONHit.h" |
105 | #include "AliMUONPadHit.h" | |
fe4da5cc | 106 | #include "AliCallf77.h" |
107 | #include "AliConst.h" | |
f665c1ea | 108 | #include "AliMUONConstants.h" |
be3bb6c1 | 109 | #include "AliMUONFactory.h" |
fe4da5cc | 110 | ClassImp(AliMUONv0) |
111 | ||
112 | //___________________________________________ | |
113 | AliMUONv0::AliMUONv0() : AliMUON() | |
114 | { | |
a9e2aefa | 115 | // Constructor |
fe4da5cc | 116 | fChambers = 0; |
117 | } | |
118 | ||
119 | //___________________________________________ | |
120 | AliMUONv0::AliMUONv0(const char *name, const char *title) | |
121 | : AliMUON(name,title) | |
122 | { | |
a9e2aefa | 123 | // Constructor |
be3bb6c1 | 124 | AliMUONFactory::Build(this, "default"); |
a897a37a | 125 | } |
126 | ||
a9e2aefa | 127 | void AliMUONv0::CreateGeometry() |
128 | { | |
129 | // Creates coarse geometry for hit density simulations | |
130 | Int_t *idtmed = fIdtmed->GetArray()-1099; | |
fe4da5cc | 131 | // |
a9e2aefa | 132 | Float_t zpos, dAlu, tpar[3]; |
133 | Int_t idAir=idtmed[1100]; | |
134 | Int_t idAlu=idtmed[1103]; | |
135 | ||
136 | AliMUONChamber *iChamber; | |
137 | // Loop over all chambers (tracking and trigger) | |
f665c1ea | 138 | for (Int_t ch = 0; ch < AliMUONConstants::NCh(); ch++) { |
a9e2aefa | 139 | char alu[8]; |
140 | char gas[8]; | |
141 | ||
142 | iChamber=(AliMUONChamber*) (*fChambers)[ch]; | |
143 | // Z of the chamber | |
144 | zpos=iChamber->Z(); | |
145 | dAlu=iChamber->DAlu(); | |
f665c1ea | 146 | if (ch < AliMUONConstants::NTrackingCh()) { |
a9e2aefa | 147 | // tracking chambers |
b74f1c6a | 148 | sprintf(alu,"SA0%1d",ch); |
149 | sprintf(gas,"SG0%1d",ch); | |
a9e2aefa | 150 | } else { |
151 | // trigger chambers | |
b74f1c6a | 152 | sprintf(alu,"SA%2d",ch); |
153 | sprintf(gas,"SG%2d",ch); | |
a9e2aefa | 154 | } |
155 | // | |
a9e2aefa | 156 | tpar[0] = iChamber->RInner(); |
157 | tpar[1] = iChamber->ROuter(); | |
158 | tpar[2] = (dAlu+0.2)/2.; | |
159 | if (ch !=4 && ch !=5) { | |
160 | gMC->Gsvolu(alu, "TUBE", idAlu, tpar, 3); | |
161 | tpar[2] = 0.1; | |
162 | gMC->Gsvolu(gas, "TUBE", idAir, tpar, 3); | |
163 | } else { | |
164 | gMC->Gsvolu(alu, "TUBE", idAlu, tpar, 3); | |
165 | tpar[2] = 0.1; | |
166 | gMC->Gsvolu(gas, "TUBE", idAir, tpar, 3); | |
167 | } | |
168 | gMC->Gspos(gas, 1, alu, 0., 0., 0., 0, "ONLY"); | |
afa281f0 | 169 | if (ch == 4 || ch ==5) { |
82e22b99 | 170 | if (gMC->VolId("DDIP")) { |
171 | gMC->Gspos(alu, 1, "DDIP", 0., 0., zpos, 0, "ONLY"); | |
172 | } else { | |
173 | gMC->Gspos(alu, 1, "ALIC", 0., 0., zpos, 0, "ONLY"); | |
174 | } | |
afa281f0 | 175 | } else { |
176 | gMC->Gspos(alu, 1, "ALIC", 0., 0., zpos, 0, "ONLY"); | |
177 | } | |
a897a37a | 178 | } |
fe4da5cc | 179 | } |
180 | ||
fe4da5cc | 181 | //___________________________________________ |
182 | void AliMUONv0::CreateMaterials() | |
183 | { | |
a9e2aefa | 184 | // Creates materials for coarse geometry |
82e22b99 | 185 | AliMaterial(15, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500); |
186 | AliMaterial( 9, "ALUMINIUM$", 26.98, 13. , 2.7, 8.9, 37.2); | |
fe4da5cc | 187 | |
a9e2aefa | 188 | Float_t epsil = .001; // Tracking precision, |
189 | Float_t stemax = -1.; // Maximum displacement for multiple scat | |
190 | Float_t tmaxfd = -20.; // Maximum angle due to field deflection | |
191 | Float_t deemax = -.3; // Maximum fractional energy loss, DLS | |
192 | Float_t stmin = -.8; | |
193 | Int_t isxfld = gAlice->Field()->Integ(); | |
194 | Float_t sxmgmx = gAlice->Field()->Max(); | |
fe4da5cc | 195 | |
fe4da5cc | 196 | // |
a9e2aefa | 197 | // Air |
198 | AliMedium(1, "AIR_CH_US ", 15, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
82e22b99 | 199 | AliMedium(4, "ALU_CH_US ", 9, 0, isxfld, sxmgmx, tmaxfd, fMaxStepAlu, |
a897a37a | 200 | fMaxDestepAlu, epsil, stmin); |
201 | ||
fe4da5cc | 202 | } |
203 | ||
fe4da5cc | 204 | void AliMUONv0::Init() |
205 | { | |
fe4da5cc | 206 | // |
207 | // Initialize Tracking Chambers | |
208 | // | |
b9046b8f | 209 | char vName[8]; |
210 | printf("\n\n\n Start Init for version 0 - CPC chamber type\n\n\n"); | |
211 | for (Int_t i=0; i<AliMUONConstants::NCh(); i++) { | |
212 | // Initialise chamber | |
213 | ((AliMUONChamber*) (*fChambers)[i])->Init(); | |
214 | // Set sensitive volume Id | |
215 | if (i < AliMUONConstants::NTrackingCh()) { | |
216 | // tracking chambers | |
b74f1c6a | 217 | sprintf(vName,"SG0%1d",i); |
b9046b8f | 218 | } else { |
219 | // trigger chambers | |
b74f1c6a | 220 | sprintf(vName,"SG%2d",i); |
b9046b8f | 221 | } |
222 | ((AliMUONChamber*) (*fChambers)[i])->SetGid(gMC->VolId(vName)); | |
223 | } | |
fe4da5cc | 224 | } |
225 | ||
fe4da5cc | 226 | void AliMUONv0::StepManager() |
227 | { | |
a9e2aefa | 228 | // |
229 | // Step manager for hit density simulations | |
fe4da5cc | 230 | Int_t copy, id; |
231 | static Int_t idvol; | |
232 | static Int_t vol[2]; | |
233 | Int_t ipart; | |
a897a37a | 234 | TLorentzVector pos; |
235 | TLorentzVector mom; | |
236 | Float_t theta,phi; | |
fe4da5cc | 237 | |
a897a37a | 238 | // modifs perso |
a9e2aefa | 239 | static Float_t hits[15]; |
a897a37a | 240 | |
fe4da5cc | 241 | TClonesArray &lhits = *fHits; |
fe4da5cc | 242 | // |
243 | // Only gas gap inside chamber | |
244 | // Tag chambers and record hits when track enters | |
245 | idvol=-1; | |
0a6d8768 | 246 | id=gMC->CurrentVolID(copy); |
fe4da5cc | 247 | |
f665c1ea | 248 | for (Int_t i=1; i<=AliMUONConstants::NCh(); i++) { |
a9e2aefa | 249 | if(id==((AliMUONChamber*)(*fChambers)[i-1])->GetGid()){ |
fe4da5cc | 250 | vol[0]=i; |
251 | idvol=i-1; | |
252 | } | |
253 | } | |
254 | if (idvol == -1) return; | |
255 | // | |
256 | // Get current particle id (ipart), track position (pos) and momentum (mom) | |
cfce8870 | 257 | gMC->TrackPosition(pos); |
258 | gMC->TrackMomentum(mom); | |
fe4da5cc | 259 | |
cfce8870 | 260 | ipart = gMC->TrackPid(); |
fe4da5cc | 261 | // |
262 | // record hits when track enters ... | |
9fde056a | 263 | if( !(gMC->TrackCharge()) ) return; |
0a6d8768 | 264 | if( gMC->IsTrackEntering()) { |
82e22b99 | 265 | // printf("\n Particle entering %f %f %f", pos[0], pos[1], pos[2] ); |
266 | ||
a897a37a | 267 | Double_t tc = mom[0]*mom[0]+mom[1]*mom[1]; |
268 | Double_t rt = TMath::Sqrt(tc); | |
a897a37a | 269 | theta = Float_t(TMath::ATan2(rt,Double_t(mom[2])))*kRaddeg; |
270 | phi = Float_t(TMath::ATan2(Double_t(mom[1]),Double_t(mom[0])))*kRaddeg; | |
a9e2aefa | 271 | hits[0] = Float_t(ipart); // Geant3 particle type |
272 | hits[1] = pos[0]; // X-position for hit | |
273 | hits[2] = pos[1]; // Y-position for hit | |
274 | hits[3] = pos[2]; // Z-position for hit | |
275 | hits[4] = theta; // theta angle of incidence | |
276 | hits[5] = phi; // phi angle of incidence | |
277 | hits[8] = -1; // first padhit | |
278 | hits[9] = -1; // last pad hit | |
2eb55fab | 279 | hits[10] = mom[3]; // hit Energy |
280 | hits[11] = mom[0]; // Px | |
281 | hits[12] = mom[1]; // Py | |
282 | hits[13] = mom[2]; // Pz | |
283 | hits[14] = gMC->TrackTime(); // time of flight | |
fe4da5cc | 284 | new(lhits[fNhits++]) |
a9e2aefa | 285 | AliMUONHit(fIshunt,gAlice->CurrentTrack(),vol,hits); |
286 | ||
fe4da5cc | 287 | } |
82e22b99 | 288 | // if( gMC->IsTrackExiting()) gMC->StopTrack(); |
fe4da5cc | 289 | } |
a9e2aefa | 290 | |
291 | ||
292 | ||
293 | ||
294 | ||
295 | ||
296 | ||
297 | ||
298 |