]> 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
Cast to avoid problems on Alpha
[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$Log$
afa281f0 18Revision 1.18 2001/04/06 11:24:43 morsch
19Dependency on implementations of AliSegmentation and AliMUONResponse moved to AliMUONFactory class.
20Static method Build() builds the MUON system out of chambers, segmentation and response.
21
be3bb6c1 22Revision 1.17 2001/03/17 10:07:20 morsch
23Correct inconsistent variable name / method name / comments.
24
2eb55fab 25Revision 1.16 2001/01/27 08:50:50 morsch
26Call non default constructors of segmentation classes.
27
c687f06a 28Revision 1.15 2001/01/17 20:57:45 hristov
29Unused variable removed
30
a7e8b51a 31Revision 1.14 2000/12/21 22:42:55 morsch
32Constructor contains default set-up for segmentation.
33Record charged particles only.
34
9fde056a 35Revision 1.13 2000/10/06 10:03:38 morsch
36Call to gMC->VolId() moved to Init()
37
b9046b8f 38Revision 1.12 2000/10/02 21:28:09 fca
39Removal of useless dependecies via forward declarations
40
94de3818 41Revision 1.11 2000/06/27 07:31:07 morsch
42fChambers = 0; deleted from constructor.
43
c20a5a2a 44Revision 1.10 2000/06/26 14:02:38 morsch
45Add class AliMUONConstants with MUON specific constants using static memeber data and access methods.
46
f665c1ea 47Revision 1.9 2000/06/15 07:58:49 morsch
48Code from MUON-dev joined
49
a9e2aefa 50Revision 1.8.4.9 2000/06/12 19:20:49 morsch
51Constructor sets default geometry, segmentation and response parameters.
52
53Revision 1.8.4.8 2000/06/09 21:55:28 morsch
54Most coding rule violations corrected.
55
56Revision 1.8.4.7 2000/05/02 13:15:18 morsch
57Coding rule violations RS3, RN13 corected
58
59Revision 1.8.4.6 2000/05/02 10:24:26 morsch
60Public access to fdGas and fdAlu of AliMUONChamber replaced by getters.
61
62Revision 1.8.4.5 2000/04/26 19:58:47 morsch
63Obsolete reference to trig_ removed.
64
65Revision 1.8.4.4 2000/04/19 19:42:47 morsch
66change NCH to kNCH
67
68Revision 1.8.4.3 2000/02/17 08:17:43 morsch
69Gammas and neutrons are also scored in the stepmanager
4c039060 70*/
71
fe4da5cc 72/////////////////////////////////////////////////////////
73// Manager and hits classes for set:MUON version 0 //
74/////////////////////////////////////////////////////////
75
76#include <TTUBE.h>
77#include <TNode.h>
78#include <TRandom.h>
a897a37a 79#include <TLorentzVector.h>
a9e2aefa 80#include <iostream.h>
fe4da5cc 81
82#include "AliMUONv0.h"
a9e2aefa 83#include "AliMUONChamber.h"
fe4da5cc 84#include "AliRun.h"
85#include "AliMC.h"
94de3818 86#include "AliMagF.h"
a9e2aefa 87#include "AliMUONHit.h"
88#include "AliMUONPadHit.h"
fe4da5cc 89#include "AliCallf77.h"
90#include "AliConst.h"
f665c1ea 91#include "AliMUONConstants.h"
be3bb6c1 92#include "AliMUONFactory.h"
fe4da5cc 93ClassImp(AliMUONv0)
94
95//___________________________________________
96AliMUONv0::AliMUONv0() : AliMUON()
97{
a9e2aefa 98// Constructor
fe4da5cc 99 fChambers = 0;
100}
101
102//___________________________________________
103AliMUONv0::AliMUONv0(const char *name, const char *title)
104 : AliMUON(name,title)
105{
a9e2aefa 106// Constructor
be3bb6c1 107 AliMUONFactory::Build(this, "default");
a897a37a 108}
109
a9e2aefa 110void AliMUONv0::CreateGeometry()
111{
112// Creates coarse geometry for hit density simulations
113 Int_t *idtmed = fIdtmed->GetArray()-1099;
fe4da5cc 114//
a9e2aefa 115 Float_t zpos, dAlu, tpar[3];
116 Int_t idAir=idtmed[1100];
117 Int_t idAlu=idtmed[1103];
118
119 AliMUONChamber *iChamber;
120 // Loop over all chambers (tracking and trigger)
f665c1ea 121 for (Int_t ch = 0; ch < AliMUONConstants::NCh(); ch++) {
a9e2aefa 122 char alu[8];
123 char gas[8];
124
125 iChamber=(AliMUONChamber*) (*fChambers)[ch];
126 // Z of the chamber
127 zpos=iChamber->Z();
128 dAlu=iChamber->DAlu();
f665c1ea 129 if (ch < AliMUONConstants::NTrackingCh()) {
a9e2aefa 130 // tracking chambers
131 sprintf(alu,"CA0%1d",ch);
132 sprintf(gas,"CG0%1d",ch);
133 } else {
134 // trigger chambers
135 sprintf(alu,"CA%2d",ch);
136 sprintf(gas,"CG%2d",ch);
137 }
138//
a9e2aefa 139 tpar[0] = iChamber->RInner();
140 tpar[1] = iChamber->ROuter();
141 tpar[2] = (dAlu+0.2)/2.;
142 if (ch !=4 && ch !=5) {
143 gMC->Gsvolu(alu, "TUBE", idAlu, tpar, 3);
144 tpar[2] = 0.1;
145 gMC->Gsvolu(gas, "TUBE", idAir, tpar, 3);
146 } else {
147 gMC->Gsvolu(alu, "TUBE", idAlu, tpar, 3);
148 tpar[2] = 0.1;
149 gMC->Gsvolu(gas, "TUBE", idAir, tpar, 3);
150 }
151 gMC->Gspos(gas, 1, alu, 0., 0., 0., 0, "ONLY");
afa281f0 152 if (ch == 4 || ch ==5) {
153 gMC->Gspos(alu, 1, "DDIP", 0., 0., zpos, 0, "ONLY");
154 } else {
155 gMC->Gspos(alu, 1, "ALIC", 0., 0., zpos, 0, "ONLY");
156 }
a897a37a 157 }
fe4da5cc 158}
159
fe4da5cc 160//___________________________________________
161void AliMUONv0::CreateMaterials()
162{
a9e2aefa 163// Creates materials for coarse geometry
fe4da5cc 164 AliMaterial(15, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500);
a9e2aefa 165 AliMaterial(9, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
fe4da5cc 166
a9e2aefa 167 Float_t epsil = .001; // Tracking precision,
168 Float_t stemax = -1.; // Maximum displacement for multiple scat
169 Float_t tmaxfd = -20.; // Maximum angle due to field deflection
170 Float_t deemax = -.3; // Maximum fractional energy loss, DLS
171 Float_t stmin = -.8;
172 Int_t isxfld = gAlice->Field()->Integ();
173 Float_t sxmgmx = gAlice->Field()->Max();
fe4da5cc 174
fe4da5cc 175 //
a9e2aefa 176 // Air
177 AliMedium(1, "AIR_CH_US ", 15, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
178 AliMedium(4, "ALU_CH_US ", 9, 0, isxfld, sxmgmx, tmaxfd, fMaxStepAlu,
a897a37a 179 fMaxDestepAlu, epsil, stmin);
180
fe4da5cc 181}
182
fe4da5cc 183void AliMUONv0::Init()
184{
fe4da5cc 185 //
186 // Initialize Tracking Chambers
187 //
b9046b8f 188 char vName[8];
189 printf("\n\n\n Start Init for version 0 - CPC chamber type\n\n\n");
190 for (Int_t i=0; i<AliMUONConstants::NCh(); i++) {
191// Initialise chamber
192 ((AliMUONChamber*) (*fChambers)[i])->Init();
193// Set sensitive volume Id
194 if (i < AliMUONConstants::NTrackingCh()) {
195 // tracking chambers
196 sprintf(vName,"CG0%1d",i);
197 } else {
198 // trigger chambers
199 sprintf(vName,"CG%2d",i);
200 }
201 ((AliMUONChamber*) (*fChambers)[i])->SetGid(gMC->VolId(vName));
202 }
fe4da5cc 203}
204
fe4da5cc 205void AliMUONv0::StepManager()
206{
a9e2aefa 207//
208// Step manager for hit density simulations
fe4da5cc 209 Int_t copy, id;
210 static Int_t idvol;
211 static Int_t vol[2];
212 Int_t ipart;
a897a37a 213 TLorentzVector pos;
214 TLorentzVector mom;
215 Float_t theta,phi;
fe4da5cc 216
a897a37a 217 // modifs perso
a9e2aefa 218 static Float_t hits[15];
a897a37a 219
fe4da5cc 220 TClonesArray &lhits = *fHits;
fe4da5cc 221 //
222 // Only gas gap inside chamber
223 // Tag chambers and record hits when track enters
224 idvol=-1;
0a6d8768 225 id=gMC->CurrentVolID(copy);
fe4da5cc 226
f665c1ea 227 for (Int_t i=1; i<=AliMUONConstants::NCh(); i++) {
a9e2aefa 228 if(id==((AliMUONChamber*)(*fChambers)[i-1])->GetGid()){
fe4da5cc 229 vol[0]=i;
230 idvol=i-1;
231 }
232 }
233 if (idvol == -1) return;
234 //
235 // Get current particle id (ipart), track position (pos) and momentum (mom)
cfce8870 236 gMC->TrackPosition(pos);
237 gMC->TrackMomentum(mom);
fe4da5cc 238
cfce8870 239 ipart = gMC->TrackPid();
fe4da5cc 240 //
241 // record hits when track enters ...
9fde056a 242 if( !(gMC->TrackCharge()) ) return;
0a6d8768 243 if( gMC->IsTrackEntering()) {
a897a37a 244 Double_t tc = mom[0]*mom[0]+mom[1]*mom[1];
245 Double_t rt = TMath::Sqrt(tc);
a897a37a 246 theta = Float_t(TMath::ATan2(rt,Double_t(mom[2])))*kRaddeg;
247 phi = Float_t(TMath::ATan2(Double_t(mom[1]),Double_t(mom[0])))*kRaddeg;
a9e2aefa 248 hits[0] = Float_t(ipart); // Geant3 particle type
249 hits[1] = pos[0]; // X-position for hit
250 hits[2] = pos[1]; // Y-position for hit
251 hits[3] = pos[2]; // Z-position for hit
252 hits[4] = theta; // theta angle of incidence
253 hits[5] = phi; // phi angle of incidence
254 hits[8] = -1; // first padhit
255 hits[9] = -1; // last pad hit
2eb55fab 256 hits[10] = mom[3]; // hit Energy
257 hits[11] = mom[0]; // Px
258 hits[12] = mom[1]; // Py
259 hits[13] = mom[2]; // Pz
260 hits[14] = gMC->TrackTime(); // time of flight
fe4da5cc 261 new(lhits[fNhits++])
a9e2aefa 262 AliMUONHit(fIshunt,gAlice->CurrentTrack(),vol,hits);
263
fe4da5cc 264 }
265}
a9e2aefa 266
267
268
269
270
271
272
273
274