]> git.uio.no Git - u/mrichter/AliRoot.git/blame - MUON/AliMUONv0.cxx
git://git.uio.no / u / mrichter / AliRoot.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Merging the VirtualMC branch to the main development branch (HEAD)
[u/mrichter/AliRoot.git] / MUON / AliMUONv0.cxx
CommitLineData
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$Log$
b9d0a01d 18Revision 1.20.6.2 2002/07/24 10:07:21 alibrary
19Updating VirtualMC
20
21Revision 1.21 2002/07/23 10:02:46 morsch
22All volume names start with "S".
23
b74f1c6a 24Revision 1.20 2001/10/30 12:18:45 morsch
25Place station 3 into DDIP only if DDIP is present.
26
82e22b99 27Revision 1.19 2001/07/17 09:51:38 morsch
28Place station 3 inside Dipole.
29
afa281f0 30Revision 1.18 2001/04/06 11:24:43 morsch
31Dependency on implementations of AliSegmentation and AliMUONResponse moved to AliMUONFactory class.
32Static method Build() builds the MUON system out of chambers, segmentation and response.
33
be3bb6c1 34Revision 1.17 2001/03/17 10:07:20 morsch
35Correct inconsistent variable name / method name / comments.
36
2eb55fab 37Revision 1.16 2001/01/27 08:50:50 morsch
38Call non default constructors of segmentation classes.
39
c687f06a 40Revision 1.15 2001/01/17 20:57:45 hristov
41Unused variable removed
42
a7e8b51a 43Revision 1.14 2000/12/21 22:42:55 morsch
44Constructor contains default set-up for segmentation.
45Record charged particles only.
46
9fde056a 47Revision 1.13 2000/10/06 10:03:38 morsch
48Call to gMC->VolId() moved to Init()
49
b9046b8f 50Revision 1.12 2000/10/02 21:28:09 fca
51Removal of useless dependecies via forward declarations
52
94de3818 53Revision 1.11 2000/06/27 07:31:07 morsch
54fChambers = 0; deleted from constructor.
55
c20a5a2a 56Revision 1.10 2000/06/26 14:02:38 morsch
57Add class AliMUONConstants with MUON specific constants using static memeber data and access methods.
58
f665c1ea 59Revision 1.9 2000/06/15 07:58:49 morsch
60Code from MUON-dev joined
61
a9e2aefa 62Revision 1.8.4.9 2000/06/12 19:20:49 morsch
63Constructor sets default geometry, segmentation and response parameters.
64
65Revision 1.8.4.8 2000/06/09 21:55:28 morsch
66Most coding rule violations corrected.
67
68Revision 1.8.4.7 2000/05/02 13:15:18 morsch
69Coding rule violations RS3, RN13 corected
70
71Revision 1.8.4.6 2000/05/02 10:24:26 morsch
72Public access to fdGas and fdAlu of AliMUONChamber replaced by getters.
73
74Revision 1.8.4.5 2000/04/26 19:58:47 morsch
75Obsolete reference to trig_ removed.
76
77Revision 1.8.4.4 2000/04/19 19:42:47 morsch
78change NCH to kNCH
79
80Revision 1.8.4.3 2000/02/17 08:17:43 morsch
81Gammas and neutrons are also scored in the stepmanager
4c039060 82*/
83
fe4da5cc 84/////////////////////////////////////////////////////////
85// Manager and hits classes for set:MUON version 0 //
86/////////////////////////////////////////////////////////
87
88#include <TTUBE.h>
89#include <TNode.h>
90#include <TRandom.h>
a897a37a 91#include <TLorentzVector.h>
a9e2aefa 92#include <iostream.h>
fe4da5cc 93
94#include "AliMUONv0.h"
a9e2aefa 95#include "AliMUONChamber.h"
fe4da5cc 96#include "AliRun.h"
97#include "AliMC.h"
94de3818 98#include "AliMagF.h"
a9e2aefa 99#include "AliMUONHit.h"
100#include "AliMUONPadHit.h"
fe4da5cc 101#include "AliCallf77.h"
102#include "AliConst.h"
f665c1ea 103#include "AliMUONConstants.h"
be3bb6c1 104#include "AliMUONFactory.h"
fe4da5cc 105ClassImp(AliMUONv0)
106
107//___________________________________________
108AliMUONv0::AliMUONv0() : AliMUON()
109{
a9e2aefa 110// Constructor
fe4da5cc 111 fChambers = 0;
112}
113
114//___________________________________________
115AliMUONv0::AliMUONv0(const char *name, const char *title)
116 : AliMUON(name,title)
117{
a9e2aefa 118// Constructor
be3bb6c1 119 AliMUONFactory::Build(this, "default");
a897a37a 120}
121
a9e2aefa 122void AliMUONv0::CreateGeometry()
123{
124// Creates coarse geometry for hit density simulations
125 Int_t *idtmed = fIdtmed->GetArray()-1099;
fe4da5cc 126//
a9e2aefa 127 Float_t zpos, dAlu, tpar[3];
128 Int_t idAir=idtmed[1100];
129 Int_t idAlu=idtmed[1103];
130
131 AliMUONChamber *iChamber;
132 // Loop over all chambers (tracking and trigger)
f665c1ea 133 for (Int_t ch = 0; ch < AliMUONConstants::NCh(); ch++) {
a9e2aefa 134 char alu[8];
135 char gas[8];
136
137 iChamber=(AliMUONChamber*) (*fChambers)[ch];
138 // Z of the chamber
139 zpos=iChamber->Z();
140 dAlu=iChamber->DAlu();
f665c1ea 141 if (ch < AliMUONConstants::NTrackingCh()) {
a9e2aefa 142 // tracking chambers
b74f1c6a 143 sprintf(alu,"SA0%1d",ch);
144 sprintf(gas,"SG0%1d",ch);
a9e2aefa 145 } else {
146 // trigger chambers
b74f1c6a 147 sprintf(alu,"SA%2d",ch);
148 sprintf(gas,"SG%2d",ch);
a9e2aefa 149 }
150//
a9e2aefa 151 tpar[0] = iChamber->RInner();
152 tpar[1] = iChamber->ROuter();
153 tpar[2] = (dAlu+0.2)/2.;
154 if (ch !=4 && ch !=5) {
155 gMC->Gsvolu(alu, "TUBE", idAlu, tpar, 3);
156 tpar[2] = 0.1;
157 gMC->Gsvolu(gas, "TUBE", idAir, tpar, 3);
158 } else {
159 gMC->Gsvolu(alu, "TUBE", idAlu, tpar, 3);
160 tpar[2] = 0.1;
161 gMC->Gsvolu(gas, "TUBE", idAir, tpar, 3);
162 }
163 gMC->Gspos(gas, 1, alu, 0., 0., 0., 0, "ONLY");
afa281f0 164 if (ch == 4 || ch ==5) {
82e22b99 165 if (gMC->VolId("DDIP")) {
166 gMC->Gspos(alu, 1, "DDIP", 0., 0., zpos, 0, "ONLY");
167 } else {
168 gMC->Gspos(alu, 1, "ALIC", 0., 0., zpos, 0, "ONLY");
169 }
afa281f0 170 } else {
171 gMC->Gspos(alu, 1, "ALIC", 0., 0., zpos, 0, "ONLY");
172 }
a897a37a 173 }
fe4da5cc 174}
175
fe4da5cc 176//___________________________________________
177void AliMUONv0::CreateMaterials()
178{
a9e2aefa 179// Creates materials for coarse geometry
82e22b99 180 AliMaterial(15, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500);
181 AliMaterial( 9, "ALUMINIUM$", 26.98, 13. , 2.7, 8.9, 37.2);
fe4da5cc 182
a9e2aefa 183 Float_t epsil = .001; // Tracking precision,
184 Float_t stemax = -1.; // Maximum displacement for multiple scat
185 Float_t tmaxfd = -20.; // Maximum angle due to field deflection
186 Float_t deemax = -.3; // Maximum fractional energy loss, DLS
187 Float_t stmin = -.8;
188 Int_t isxfld = gAlice->Field()->Integ();
189 Float_t sxmgmx = gAlice->Field()->Max();
fe4da5cc 190
fe4da5cc 191 //
a9e2aefa 192 // Air
193 AliMedium(1, "AIR_CH_US ", 15, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
82e22b99 194 AliMedium(4, "ALU_CH_US ", 9, 0, isxfld, sxmgmx, tmaxfd, fMaxStepAlu,
a897a37a 195 fMaxDestepAlu, epsil, stmin);
196
fe4da5cc 197}
198
fe4da5cc 199void AliMUONv0::Init()
200{
fe4da5cc 201 //
202 // Initialize Tracking Chambers
203 //
b9046b8f 204 char vName[8];
205 printf("\n\n\n Start Init for version 0 - CPC chamber type\n\n\n");
206 for (Int_t i=0; i<AliMUONConstants::NCh(); i++) {
207// Initialise chamber
208 ((AliMUONChamber*) (*fChambers)[i])->Init();
209// Set sensitive volume Id
210 if (i < AliMUONConstants::NTrackingCh()) {
211 // tracking chambers
b74f1c6a 212 sprintf(vName,"SG0%1d",i);
b9046b8f 213 } else {
214 // trigger chambers
b74f1c6a 215 sprintf(vName,"SG%2d",i);
b9046b8f 216 }
217 ((AliMUONChamber*) (*fChambers)[i])->SetGid(gMC->VolId(vName));
218 }
fe4da5cc 219}
220
fe4da5cc 221void AliMUONv0::StepManager()
222{
a9e2aefa 223//
224// Step manager for hit density simulations
fe4da5cc 225 Int_t copy, id;
226 static Int_t idvol;
227 static Int_t vol[2];
228 Int_t ipart;
a897a37a 229 TLorentzVector pos;
230 TLorentzVector mom;
231 Float_t theta,phi;
fe4da5cc 232
a897a37a 233 // modifs perso
a9e2aefa 234 static Float_t hits[15];
a897a37a 235
fe4da5cc 236 TClonesArray &lhits = *fHits;
fe4da5cc 237 //
238 // Only gas gap inside chamber
239 // Tag chambers and record hits when track enters
240 idvol=-1;
0a6d8768 241 id=gMC->CurrentVolID(copy);
fe4da5cc 242
f665c1ea 243 for (Int_t i=1; i<=AliMUONConstants::NCh(); i++) {
a9e2aefa 244 if(id==((AliMUONChamber*)(*fChambers)[i-1])->GetGid()){
fe4da5cc 245 vol[0]=i;
246 idvol=i-1;
247 }
248 }
249 if (idvol == -1) return;
250 //
251 // Get current particle id (ipart), track position (pos) and momentum (mom)
cfce8870 252 gMC->TrackPosition(pos);
253 gMC->TrackMomentum(mom);
fe4da5cc 254
cfce8870 255 ipart = gMC->TrackPid();
fe4da5cc 256 //
257 // record hits when track enters ...
9fde056a 258 if( !(gMC->TrackCharge()) ) return;
0a6d8768 259 if( gMC->IsTrackEntering()) {
82e22b99 260// printf("\n Particle entering %f %f %f", pos[0], pos[1], pos[2] );
261
a897a37a 262 Double_t tc = mom[0]*mom[0]+mom[1]*mom[1];
263 Double_t rt = TMath::Sqrt(tc);
a897a37a 264 theta = Float_t(TMath::ATan2(rt,Double_t(mom[2])))*kRaddeg;
265 phi = Float_t(TMath::ATan2(Double_t(mom[1]),Double_t(mom[0])))*kRaddeg;
a9e2aefa 266 hits[0] = Float_t(ipart); // Geant3 particle type
267 hits[1] = pos[0]; // X-position for hit
268 hits[2] = pos[1]; // Y-position for hit
269 hits[3] = pos[2]; // Z-position for hit
270 hits[4] = theta; // theta angle of incidence
271 hits[5] = phi; // phi angle of incidence
272 hits[8] = -1; // first padhit
273 hits[9] = -1; // last pad hit
2eb55fab 274 hits[10] = mom[3]; // hit Energy
275 hits[11] = mom[0]; // Px
276 hits[12] = mom[1]; // Py
277 hits[13] = mom[2]; // Pz
278 hits[14] = gMC->TrackTime(); // time of flight
fe4da5cc 279 new(lhits[fNhits++])
a9e2aefa 280 AliMUONHit(fIshunt,gAlice->CurrentTrack(),vol,hits);
281
fe4da5cc 282 }
82e22b99 283// if( gMC->IsTrackExiting()) gMC->StopTrack();
fe4da5cc 284}
a9e2aefa 285
286
287
288
289
290
291
292
293