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