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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 | $Log$ | |
be3bb6c1 | 18 | Revision 1.17 2001/03/17 10:07:20 morsch |
19 | Correct inconsistent variable name / method name / comments. | |
20 | ||
2eb55fab | 21 | Revision 1.16 2001/01/27 08:50:50 morsch |
22 | Call non default constructors of segmentation classes. | |
23 | ||
c687f06a | 24 | Revision 1.15 2001/01/17 20:57:45 hristov |
25 | Unused variable removed | |
26 | ||
a7e8b51a | 27 | Revision 1.14 2000/12/21 22:42:55 morsch |
28 | Constructor contains default set-up for segmentation. | |
29 | Record charged particles only. | |
30 | ||
9fde056a | 31 | Revision 1.13 2000/10/06 10:03:38 morsch |
32 | Call to gMC->VolId() moved to Init() | |
33 | ||
b9046b8f | 34 | Revision 1.12 2000/10/02 21:28:09 fca |
35 | Removal of useless dependecies via forward declarations | |
36 | ||
94de3818 | 37 | Revision 1.11 2000/06/27 07:31:07 morsch |
38 | fChambers = 0; deleted from constructor. | |
39 | ||
c20a5a2a | 40 | Revision 1.10 2000/06/26 14:02:38 morsch |
41 | Add class AliMUONConstants with MUON specific constants using static memeber data and access methods. | |
42 | ||
f665c1ea | 43 | Revision 1.9 2000/06/15 07:58:49 morsch |
44 | Code from MUON-dev joined | |
45 | ||
a9e2aefa | 46 | Revision 1.8.4.9 2000/06/12 19:20:49 morsch |
47 | Constructor sets default geometry, segmentation and response parameters. | |
48 | ||
49 | Revision 1.8.4.8 2000/06/09 21:55:28 morsch | |
50 | Most coding rule violations corrected. | |
51 | ||
52 | Revision 1.8.4.7 2000/05/02 13:15:18 morsch | |
53 | Coding rule violations RS3, RN13 corected | |
54 | ||
55 | Revision 1.8.4.6 2000/05/02 10:24:26 morsch | |
56 | Public access to fdGas and fdAlu of AliMUONChamber replaced by getters. | |
57 | ||
58 | Revision 1.8.4.5 2000/04/26 19:58:47 morsch | |
59 | Obsolete reference to trig_ removed. | |
60 | ||
61 | Revision 1.8.4.4 2000/04/19 19:42:47 morsch | |
62 | change NCH to kNCH | |
63 | ||
64 | Revision 1.8.4.3 2000/02/17 08:17:43 morsch | |
65 | Gammas and neutrons are also scored in the stepmanager | |
4c039060 | 66 | */ |
67 | ||
fe4da5cc | 68 | ///////////////////////////////////////////////////////// |
69 | // Manager and hits classes for set:MUON version 0 // | |
70 | ///////////////////////////////////////////////////////// | |
71 | ||
72 | #include <TTUBE.h> | |
73 | #include <TNode.h> | |
74 | #include <TRandom.h> | |
a897a37a | 75 | #include <TLorentzVector.h> |
a9e2aefa | 76 | #include <iostream.h> |
fe4da5cc | 77 | |
78 | #include "AliMUONv0.h" | |
a9e2aefa | 79 | #include "AliMUONChamber.h" |
fe4da5cc | 80 | #include "AliRun.h" |
81 | #include "AliMC.h" | |
94de3818 | 82 | #include "AliMagF.h" |
a9e2aefa | 83 | #include "AliMUONHit.h" |
84 | #include "AliMUONPadHit.h" | |
fe4da5cc | 85 | #include "AliCallf77.h" |
86 | #include "AliConst.h" | |
f665c1ea | 87 | #include "AliMUONConstants.h" |
be3bb6c1 | 88 | #include "AliMUONFactory.h" |
fe4da5cc | 89 | ClassImp(AliMUONv0) |
90 | ||
91 | //___________________________________________ | |
92 | AliMUONv0::AliMUONv0() : AliMUON() | |
93 | { | |
a9e2aefa | 94 | // Constructor |
fe4da5cc | 95 | fChambers = 0; |
96 | } | |
97 | ||
98 | //___________________________________________ | |
99 | AliMUONv0::AliMUONv0(const char *name, const char *title) | |
100 | : AliMUON(name,title) | |
101 | { | |
a9e2aefa | 102 | // Constructor |
be3bb6c1 | 103 | AliMUONFactory::Build(this, "default"); |
a897a37a | 104 | } |
105 | ||
a9e2aefa | 106 | void AliMUONv0::CreateGeometry() |
107 | { | |
108 | // Creates coarse geometry for hit density simulations | |
109 | Int_t *idtmed = fIdtmed->GetArray()-1099; | |
fe4da5cc | 110 | // |
a9e2aefa | 111 | Float_t zpos, dAlu, tpar[3]; |
112 | Int_t idAir=idtmed[1100]; | |
113 | Int_t idAlu=idtmed[1103]; | |
114 | ||
115 | AliMUONChamber *iChamber; | |
116 | // Loop over all chambers (tracking and trigger) | |
f665c1ea | 117 | for (Int_t ch = 0; ch < AliMUONConstants::NCh(); ch++) { |
a9e2aefa | 118 | char alu[8]; |
119 | char gas[8]; | |
120 | ||
121 | iChamber=(AliMUONChamber*) (*fChambers)[ch]; | |
122 | // Z of the chamber | |
123 | zpos=iChamber->Z(); | |
124 | dAlu=iChamber->DAlu(); | |
f665c1ea | 125 | if (ch < AliMUONConstants::NTrackingCh()) { |
a9e2aefa | 126 | // tracking chambers |
127 | sprintf(alu,"CA0%1d",ch); | |
128 | sprintf(gas,"CG0%1d",ch); | |
129 | } else { | |
130 | // trigger chambers | |
131 | sprintf(alu,"CA%2d",ch); | |
132 | sprintf(gas,"CG%2d",ch); | |
133 | } | |
134 | // | |
a9e2aefa | 135 | tpar[0] = iChamber->RInner(); |
136 | tpar[1] = iChamber->ROuter(); | |
137 | tpar[2] = (dAlu+0.2)/2.; | |
138 | if (ch !=4 && ch !=5) { | |
139 | gMC->Gsvolu(alu, "TUBE", idAlu, tpar, 3); | |
140 | tpar[2] = 0.1; | |
141 | gMC->Gsvolu(gas, "TUBE", idAir, tpar, 3); | |
142 | } else { | |
143 | gMC->Gsvolu(alu, "TUBE", idAlu, tpar, 3); | |
144 | tpar[2] = 0.1; | |
145 | gMC->Gsvolu(gas, "TUBE", idAir, tpar, 3); | |
146 | } | |
147 | gMC->Gspos(gas, 1, alu, 0., 0., 0., 0, "ONLY"); | |
148 | gMC->Gspos(alu, 1, "ALIC", 0., 0., zpos, 0, "ONLY"); | |
a897a37a | 149 | } |
fe4da5cc | 150 | } |
151 | ||
fe4da5cc | 152 | //___________________________________________ |
153 | void AliMUONv0::CreateMaterials() | |
154 | { | |
a9e2aefa | 155 | // Creates materials for coarse geometry |
fe4da5cc | 156 | AliMaterial(15, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500); |
a9e2aefa | 157 | AliMaterial(9, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2); |
fe4da5cc | 158 | |
a9e2aefa | 159 | Float_t epsil = .001; // Tracking precision, |
160 | Float_t stemax = -1.; // Maximum displacement for multiple scat | |
161 | Float_t tmaxfd = -20.; // Maximum angle due to field deflection | |
162 | Float_t deemax = -.3; // Maximum fractional energy loss, DLS | |
163 | Float_t stmin = -.8; | |
164 | Int_t isxfld = gAlice->Field()->Integ(); | |
165 | Float_t sxmgmx = gAlice->Field()->Max(); | |
fe4da5cc | 166 | |
fe4da5cc | 167 | // |
a9e2aefa | 168 | // Air |
169 | AliMedium(1, "AIR_CH_US ", 15, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
170 | AliMedium(4, "ALU_CH_US ", 9, 0, isxfld, sxmgmx, tmaxfd, fMaxStepAlu, | |
a897a37a | 171 | fMaxDestepAlu, epsil, stmin); |
172 | ||
fe4da5cc | 173 | } |
174 | ||
fe4da5cc | 175 | void AliMUONv0::Init() |
176 | { | |
fe4da5cc | 177 | // |
178 | // Initialize Tracking Chambers | |
179 | // | |
b9046b8f | 180 | char vName[8]; |
181 | printf("\n\n\n Start Init for version 0 - CPC chamber type\n\n\n"); | |
182 | for (Int_t i=0; i<AliMUONConstants::NCh(); i++) { | |
183 | // Initialise chamber | |
184 | ((AliMUONChamber*) (*fChambers)[i])->Init(); | |
185 | // Set sensitive volume Id | |
186 | if (i < AliMUONConstants::NTrackingCh()) { | |
187 | // tracking chambers | |
188 | sprintf(vName,"CG0%1d",i); | |
189 | } else { | |
190 | // trigger chambers | |
191 | sprintf(vName,"CG%2d",i); | |
192 | } | |
193 | ((AliMUONChamber*) (*fChambers)[i])->SetGid(gMC->VolId(vName)); | |
194 | } | |
fe4da5cc | 195 | } |
196 | ||
fe4da5cc | 197 | void AliMUONv0::StepManager() |
198 | { | |
a9e2aefa | 199 | // |
200 | // Step manager for hit density simulations | |
fe4da5cc | 201 | Int_t copy, id; |
202 | static Int_t idvol; | |
203 | static Int_t vol[2]; | |
204 | Int_t ipart; | |
a897a37a | 205 | TLorentzVector pos; |
206 | TLorentzVector mom; | |
207 | Float_t theta,phi; | |
fe4da5cc | 208 | |
a897a37a | 209 | // modifs perso |
a9e2aefa | 210 | static Float_t hits[15]; |
a897a37a | 211 | |
fe4da5cc | 212 | TClonesArray &lhits = *fHits; |
fe4da5cc | 213 | // |
214 | // Only gas gap inside chamber | |
215 | // Tag chambers and record hits when track enters | |
216 | idvol=-1; | |
0a6d8768 | 217 | id=gMC->CurrentVolID(copy); |
fe4da5cc | 218 | |
f665c1ea | 219 | for (Int_t i=1; i<=AliMUONConstants::NCh(); i++) { |
a9e2aefa | 220 | if(id==((AliMUONChamber*)(*fChambers)[i-1])->GetGid()){ |
fe4da5cc | 221 | vol[0]=i; |
222 | idvol=i-1; | |
223 | } | |
224 | } | |
225 | if (idvol == -1) return; | |
226 | // | |
227 | // Get current particle id (ipart), track position (pos) and momentum (mom) | |
cfce8870 | 228 | gMC->TrackPosition(pos); |
229 | gMC->TrackMomentum(mom); | |
fe4da5cc | 230 | |
cfce8870 | 231 | ipart = gMC->TrackPid(); |
fe4da5cc | 232 | // |
233 | // record hits when track enters ... | |
9fde056a | 234 | if( !(gMC->TrackCharge()) ) return; |
0a6d8768 | 235 | if( gMC->IsTrackEntering()) { |
a897a37a | 236 | Double_t tc = mom[0]*mom[0]+mom[1]*mom[1]; |
237 | Double_t rt = TMath::Sqrt(tc); | |
a897a37a | 238 | theta = Float_t(TMath::ATan2(rt,Double_t(mom[2])))*kRaddeg; |
239 | phi = Float_t(TMath::ATan2(Double_t(mom[1]),Double_t(mom[0])))*kRaddeg; | |
a9e2aefa | 240 | hits[0] = Float_t(ipart); // Geant3 particle type |
241 | hits[1] = pos[0]; // X-position for hit | |
242 | hits[2] = pos[1]; // Y-position for hit | |
243 | hits[3] = pos[2]; // Z-position for hit | |
244 | hits[4] = theta; // theta angle of incidence | |
245 | hits[5] = phi; // phi angle of incidence | |
246 | hits[8] = -1; // first padhit | |
247 | hits[9] = -1; // last pad hit | |
2eb55fab | 248 | hits[10] = mom[3]; // hit Energy |
249 | hits[11] = mom[0]; // Px | |
250 | hits[12] = mom[1]; // Py | |
251 | hits[13] = mom[2]; // Pz | |
252 | hits[14] = gMC->TrackTime(); // time of flight | |
fe4da5cc | 253 | new(lhits[fNhits++]) |
a9e2aefa | 254 | AliMUONHit(fIshunt,gAlice->CurrentTrack(),vol,hits); |
255 | ||
fe4da5cc | 256 | } |
257 | } | |
a9e2aefa | 258 | |
259 | ||
260 | ||
261 | ||
262 | ||
263 | ||
264 | ||
265 | ||
266 |