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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 | $Log$ | |
ba030c0e | 18 | Revision 1.25 2003/01/14 10:50:19 alibrary |
19 | Cleanup of STEER coding conventions | |
20 | ||
116cbefd | 21 | Revision 1.24 2002/11/21 17:01:56 alibrary |
22 | Removing AliMCProcess and AliMC | |
23 | ||
6b677e96 | 24 | Revision 1.23 2002/10/23 07:24:57 alibrary |
25 | Introducing Riostream.h | |
26 | ||
70479d0e | 27 | Revision 1.22 2002/10/14 14:57:29 hristov |
28 | Merging the VirtualMC branch to the main development branch (HEAD) | |
29 | ||
b9d0a01d | 30 | Revision 1.20.6.2 2002/07/24 10:07:21 alibrary |
31 | Updating VirtualMC | |
32 | ||
33 | Revision 1.21 2002/07/23 10:02:46 morsch | |
34 | All volume names start with "S". | |
35 | ||
b74f1c6a | 36 | Revision 1.20 2001/10/30 12:18:45 morsch |
37 | Place station 3 into DDIP only if DDIP is present. | |
38 | ||
82e22b99 | 39 | Revision 1.19 2001/07/17 09:51:38 morsch |
40 | Place station 3 inside Dipole. | |
41 | ||
afa281f0 | 42 | Revision 1.18 2001/04/06 11:24:43 morsch |
43 | Dependency on implementations of AliSegmentation and AliMUONResponse moved to AliMUONFactory class. | |
44 | Static method Build() builds the MUON system out of chambers, segmentation and response. | |
45 | ||
be3bb6c1 | 46 | Revision 1.17 2001/03/17 10:07:20 morsch |
47 | Correct inconsistent variable name / method name / comments. | |
48 | ||
2eb55fab | 49 | Revision 1.16 2001/01/27 08:50:50 morsch |
50 | Call non default constructors of segmentation classes. | |
51 | ||
c687f06a | 52 | Revision 1.15 2001/01/17 20:57:45 hristov |
53 | Unused variable removed | |
54 | ||
a7e8b51a | 55 | Revision 1.14 2000/12/21 22:42:55 morsch |
56 | Constructor contains default set-up for segmentation. | |
57 | Record charged particles only. | |
58 | ||
9fde056a | 59 | Revision 1.13 2000/10/06 10:03:38 morsch |
60 | Call to gMC->VolId() moved to Init() | |
61 | ||
b9046b8f | 62 | Revision 1.12 2000/10/02 21:28:09 fca |
63 | Removal of useless dependecies via forward declarations | |
64 | ||
94de3818 | 65 | Revision 1.11 2000/06/27 07:31:07 morsch |
66 | fChambers = 0; deleted from constructor. | |
67 | ||
c20a5a2a | 68 | Revision 1.10 2000/06/26 14:02:38 morsch |
69 | Add class AliMUONConstants with MUON specific constants using static memeber data and access methods. | |
70 | ||
f665c1ea | 71 | Revision 1.9 2000/06/15 07:58:49 morsch |
72 | Code from MUON-dev joined | |
73 | ||
a9e2aefa | 74 | Revision 1.8.4.9 2000/06/12 19:20:49 morsch |
75 | Constructor sets default geometry, segmentation and response parameters. | |
76 | ||
77 | Revision 1.8.4.8 2000/06/09 21:55:28 morsch | |
78 | Most coding rule violations corrected. | |
79 | ||
80 | Revision 1.8.4.7 2000/05/02 13:15:18 morsch | |
81 | Coding rule violations RS3, RN13 corected | |
82 | ||
83 | Revision 1.8.4.6 2000/05/02 10:24:26 morsch | |
84 | Public access to fdGas and fdAlu of AliMUONChamber replaced by getters. | |
85 | ||
86 | Revision 1.8.4.5 2000/04/26 19:58:47 morsch | |
87 | Obsolete reference to trig_ removed. | |
88 | ||
89 | Revision 1.8.4.4 2000/04/19 19:42:47 morsch | |
90 | change NCH to kNCH | |
91 | ||
92 | Revision 1.8.4.3 2000/02/17 08:17:43 morsch | |
93 | Gammas and neutrons are also scored in the stepmanager | |
4c039060 | 94 | */ |
95 | ||
fe4da5cc | 96 | ///////////////////////////////////////////////////////// |
97 | // Manager and hits classes for set:MUON version 0 // | |
98 | ///////////////////////////////////////////////////////// | |
99 | ||
116cbefd | 100 | #include <Riostream.h> |
101 | #include <TClonesArray.h> | |
102 | #include <TLorentzVector.h> | |
fe4da5cc | 103 | #include <TNode.h> |
104 | #include <TRandom.h> | |
116cbefd | 105 | #include <TTUBE.h> |
fe4da5cc | 106 | |
107 | #include "AliMUONv0.h" | |
a9e2aefa | 108 | #include "AliMUONChamber.h" |
fe4da5cc | 109 | #include "AliRun.h" |
94de3818 | 110 | #include "AliMagF.h" |
a9e2aefa | 111 | #include "AliMUONHit.h" |
112 | #include "AliMUONPadHit.h" | |
fe4da5cc | 113 | #include "AliCallf77.h" |
114 | #include "AliConst.h" | |
f665c1ea | 115 | #include "AliMUONConstants.h" |
be3bb6c1 | 116 | #include "AliMUONFactory.h" |
fe4da5cc | 117 | ClassImp(AliMUONv0) |
118 | ||
119 | //___________________________________________ | |
120 | AliMUONv0::AliMUONv0() : AliMUON() | |
121 | { | |
a9e2aefa | 122 | // Constructor |
fe4da5cc | 123 | fChambers = 0; |
124 | } | |
125 | ||
126 | //___________________________________________ | |
127 | AliMUONv0::AliMUONv0(const char *name, const char *title) | |
128 | : AliMUON(name,title) | |
129 | { | |
a9e2aefa | 130 | // Constructor |
ba030c0e | 131 | AliMUONFactory factory; |
132 | factory.Build(this, title); | |
a897a37a | 133 | } |
134 | ||
a9e2aefa | 135 | void AliMUONv0::CreateGeometry() |
136 | { | |
137 | // Creates coarse geometry for hit density simulations | |
138 | Int_t *idtmed = fIdtmed->GetArray()-1099; | |
fe4da5cc | 139 | // |
a9e2aefa | 140 | Float_t zpos, dAlu, tpar[3]; |
141 | Int_t idAir=idtmed[1100]; | |
142 | Int_t idAlu=idtmed[1103]; | |
143 | ||
144 | AliMUONChamber *iChamber; | |
145 | // Loop over all chambers (tracking and trigger) | |
f665c1ea | 146 | for (Int_t ch = 0; ch < AliMUONConstants::NCh(); ch++) { |
a9e2aefa | 147 | char alu[8]; |
148 | char gas[8]; | |
149 | ||
150 | iChamber=(AliMUONChamber*) (*fChambers)[ch]; | |
151 | // Z of the chamber | |
152 | zpos=iChamber->Z(); | |
153 | dAlu=iChamber->DAlu(); | |
f665c1ea | 154 | if (ch < AliMUONConstants::NTrackingCh()) { |
a9e2aefa | 155 | // tracking chambers |
b74f1c6a | 156 | sprintf(alu,"SA0%1d",ch); |
157 | sprintf(gas,"SG0%1d",ch); | |
a9e2aefa | 158 | } else { |
159 | // trigger chambers | |
b74f1c6a | 160 | sprintf(alu,"SA%2d",ch); |
161 | sprintf(gas,"SG%2d",ch); | |
a9e2aefa | 162 | } |
163 | // | |
a9e2aefa | 164 | tpar[0] = iChamber->RInner(); |
165 | tpar[1] = iChamber->ROuter(); | |
166 | tpar[2] = (dAlu+0.2)/2.; | |
167 | if (ch !=4 && ch !=5) { | |
168 | gMC->Gsvolu(alu, "TUBE", idAlu, tpar, 3); | |
169 | tpar[2] = 0.1; | |
170 | gMC->Gsvolu(gas, "TUBE", idAir, tpar, 3); | |
171 | } else { | |
172 | gMC->Gsvolu(alu, "TUBE", idAlu, tpar, 3); | |
173 | tpar[2] = 0.1; | |
174 | gMC->Gsvolu(gas, "TUBE", idAir, tpar, 3); | |
175 | } | |
176 | gMC->Gspos(gas, 1, alu, 0., 0., 0., 0, "ONLY"); | |
afa281f0 | 177 | if (ch == 4 || ch ==5) { |
82e22b99 | 178 | if (gMC->VolId("DDIP")) { |
179 | gMC->Gspos(alu, 1, "DDIP", 0., 0., zpos, 0, "ONLY"); | |
180 | } else { | |
181 | gMC->Gspos(alu, 1, "ALIC", 0., 0., zpos, 0, "ONLY"); | |
182 | } | |
afa281f0 | 183 | } else { |
184 | gMC->Gspos(alu, 1, "ALIC", 0., 0., zpos, 0, "ONLY"); | |
185 | } | |
a897a37a | 186 | } |
fe4da5cc | 187 | } |
188 | ||
fe4da5cc | 189 | //___________________________________________ |
190 | void AliMUONv0::CreateMaterials() | |
191 | { | |
a9e2aefa | 192 | // Creates materials for coarse geometry |
82e22b99 | 193 | AliMaterial(15, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500); |
194 | AliMaterial( 9, "ALUMINIUM$", 26.98, 13. , 2.7, 8.9, 37.2); | |
fe4da5cc | 195 | |
a9e2aefa | 196 | Float_t epsil = .001; // Tracking precision, |
197 | Float_t stemax = -1.; // Maximum displacement for multiple scat | |
198 | Float_t tmaxfd = -20.; // Maximum angle due to field deflection | |
199 | Float_t deemax = -.3; // Maximum fractional energy loss, DLS | |
200 | Float_t stmin = -.8; | |
201 | Int_t isxfld = gAlice->Field()->Integ(); | |
202 | Float_t sxmgmx = gAlice->Field()->Max(); | |
fe4da5cc | 203 | |
fe4da5cc | 204 | // |
a9e2aefa | 205 | // Air |
206 | AliMedium(1, "AIR_CH_US ", 15, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
82e22b99 | 207 | AliMedium(4, "ALU_CH_US ", 9, 0, isxfld, sxmgmx, tmaxfd, fMaxStepAlu, |
a897a37a | 208 | fMaxDestepAlu, epsil, stmin); |
209 | ||
fe4da5cc | 210 | } |
211 | ||
fe4da5cc | 212 | void AliMUONv0::Init() |
213 | { | |
fe4da5cc | 214 | // |
215 | // Initialize Tracking Chambers | |
216 | // | |
b9046b8f | 217 | char vName[8]; |
218 | printf("\n\n\n Start Init for version 0 - CPC chamber type\n\n\n"); | |
219 | for (Int_t i=0; i<AliMUONConstants::NCh(); i++) { | |
220 | // Initialise chamber | |
221 | ((AliMUONChamber*) (*fChambers)[i])->Init(); | |
222 | // Set sensitive volume Id | |
223 | if (i < AliMUONConstants::NTrackingCh()) { | |
224 | // tracking chambers | |
b74f1c6a | 225 | sprintf(vName,"SG0%1d",i); |
b9046b8f | 226 | } else { |
227 | // trigger chambers | |
b74f1c6a | 228 | sprintf(vName,"SG%2d",i); |
b9046b8f | 229 | } |
230 | ((AliMUONChamber*) (*fChambers)[i])->SetGid(gMC->VolId(vName)); | |
231 | } | |
fe4da5cc | 232 | } |
233 | ||
fe4da5cc | 234 | void AliMUONv0::StepManager() |
235 | { | |
a9e2aefa | 236 | // |
237 | // Step manager for hit density simulations | |
fe4da5cc | 238 | Int_t copy, id; |
239 | static Int_t idvol; | |
240 | static Int_t vol[2]; | |
241 | Int_t ipart; | |
a897a37a | 242 | TLorentzVector pos; |
243 | TLorentzVector mom; | |
244 | Float_t theta,phi; | |
fe4da5cc | 245 | |
a897a37a | 246 | // modifs perso |
a9e2aefa | 247 | static Float_t hits[15]; |
a897a37a | 248 | |
fe4da5cc | 249 | TClonesArray &lhits = *fHits; |
fe4da5cc | 250 | // |
251 | // Only gas gap inside chamber | |
252 | // Tag chambers and record hits when track enters | |
253 | idvol=-1; | |
0a6d8768 | 254 | id=gMC->CurrentVolID(copy); |
fe4da5cc | 255 | |
f665c1ea | 256 | for (Int_t i=1; i<=AliMUONConstants::NCh(); i++) { |
a9e2aefa | 257 | if(id==((AliMUONChamber*)(*fChambers)[i-1])->GetGid()){ |
fe4da5cc | 258 | vol[0]=i; |
259 | idvol=i-1; | |
260 | } | |
261 | } | |
262 | if (idvol == -1) return; | |
263 | // | |
264 | // Get current particle id (ipart), track position (pos) and momentum (mom) | |
cfce8870 | 265 | gMC->TrackPosition(pos); |
266 | gMC->TrackMomentum(mom); | |
fe4da5cc | 267 | |
cfce8870 | 268 | ipart = gMC->TrackPid(); |
fe4da5cc | 269 | // |
270 | // record hits when track enters ... | |
9fde056a | 271 | if( !(gMC->TrackCharge()) ) return; |
0a6d8768 | 272 | if( gMC->IsTrackEntering()) { |
82e22b99 | 273 | // printf("\n Particle entering %f %f %f", pos[0], pos[1], pos[2] ); |
274 | ||
a897a37a | 275 | Double_t tc = mom[0]*mom[0]+mom[1]*mom[1]; |
276 | Double_t rt = TMath::Sqrt(tc); | |
a897a37a | 277 | theta = Float_t(TMath::ATan2(rt,Double_t(mom[2])))*kRaddeg; |
278 | phi = Float_t(TMath::ATan2(Double_t(mom[1]),Double_t(mom[0])))*kRaddeg; | |
a9e2aefa | 279 | hits[0] = Float_t(ipart); // Geant3 particle type |
280 | hits[1] = pos[0]; // X-position for hit | |
281 | hits[2] = pos[1]; // Y-position for hit | |
282 | hits[3] = pos[2]; // Z-position for hit | |
283 | hits[4] = theta; // theta angle of incidence | |
284 | hits[5] = phi; // phi angle of incidence | |
285 | hits[8] = -1; // first padhit | |
286 | hits[9] = -1; // last pad hit | |
2eb55fab | 287 | hits[10] = mom[3]; // hit Energy |
288 | hits[11] = mom[0]; // Px | |
289 | hits[12] = mom[1]; // Py | |
290 | hits[13] = mom[2]; // Pz | |
291 | hits[14] = gMC->TrackTime(); // time of flight | |
fe4da5cc | 292 | new(lhits[fNhits++]) |
a9e2aefa | 293 | AliMUONHit(fIshunt,gAlice->CurrentTrack(),vol,hits); |
294 | ||
fe4da5cc | 295 | } |
82e22b99 | 296 | // if( gMC->IsTrackExiting()) gMC->StopTrack(); |
fe4da5cc | 297 | } |
a9e2aefa | 298 | |
299 | ||
300 | ||
301 | ||
302 | ||
303 | ||
304 | ||
305 | ||
306 |