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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 | $Log$ | |
8230f242 | 18 | Revision 1.15 2000/06/07 16:25:37 cblume |
19 | Try to remove compiler warnings on Sun and HP | |
20 | ||
9d0b222b | 21 | Revision 1.14 2000/02/28 19:10:26 cblume |
22 | Include the new TRD classes | |
23 | ||
851d3db9 | 24 | Revision 1.13.4.1 2000/02/28 18:01:53 cblume |
25 | Change to new hit version and introduce geometry class | |
26 | ||
27 | Revision 1.13 1999/11/05 22:50:28 fca | |
28 | Do not use Atan, removed from ROOT too | |
29 | ||
90f8d287 | 30 | Revision 1.12 1999/11/02 16:35:56 fca |
31 | New version of TRD introduced | |
32 | ||
5c7f4665 | 33 | Revision 1.11 1999/11/01 20:41:51 fca |
34 | Added protections against using the wrong version of FRAME | |
35 | ||
ab76897d | 36 | Revision 1.10 1999/09/29 09:24:35 fca |
37 | Introduction of the Copyright and cvs Log | |
38 | ||
4c039060 | 39 | */ |
40 | ||
fe4da5cc | 41 | /////////////////////////////////////////////////////////////////////////////// |
42 | // // | |
5c7f4665 | 43 | // Transition Radiation Detector version 0 -- fast simulator // |
fe4da5cc | 44 | // // |
45 | //Begin_Html | |
46 | /* | |
5c7f4665 | 47 | <img src="picts/AliTRDfullClass.gif"> |
fe4da5cc | 48 | */ |
49 | //End_Html | |
50 | // // | |
51 | // // | |
52 | /////////////////////////////////////////////////////////////////////////////// | |
53 | ||
54 | #include <TMath.h> | |
55 | #include <TRandom.h> | |
56 | #include <TVector.h> | |
fe4da5cc | 57 | |
fe4da5cc | 58 | #include "AliRun.h" |
59 | #include "AliMC.h" | |
60 | #include "AliConst.h" | |
61 | ||
851d3db9 | 62 | #include "AliTRDv0.h" |
63 | #include "AliTRDgeometry.h" | |
fe4da5cc | 64 | |
851d3db9 | 65 | ClassImp(AliTRDv0) |
8230f242 | 66 | |
67 | //_____________________________________________________________________________ | |
68 | AliTRDv0::AliTRDv0():AliTRD() | |
69 | { | |
70 | // | |
71 | // AliTRDv0 default constructor | |
72 | // | |
73 | ||
74 | fIdSens = 0; | |
75 | fHitsOn = 0; | |
76 | ||
77 | fIdChamber1 = 0; | |
78 | fIdChamber2 = 0; | |
79 | fIdChamber3 = 0; | |
80 | ||
81 | } | |
82 | ||
fe4da5cc | 83 | //_____________________________________________________________________________ |
84 | AliTRDv0::AliTRDv0(const char *name, const char *title) | |
85 | :AliTRD(name, title) | |
86 | { | |
87 | // | |
88 | // Standard constructor for Transition Radiation Detector version 0 | |
89 | // | |
82bbf98a | 90 | |
91 | fIdSens = 0; | |
92 | fHitsOn = 0; | |
93 | ||
82bbf98a | 94 | fIdChamber1 = 0; |
95 | fIdChamber2 = 0; | |
96 | fIdChamber3 = 0; | |
97 | ||
fe4da5cc | 98 | } |
851d3db9 | 99 | |
8230f242 | 100 | //_____________________________________________________________________________ |
101 | AliTRDv0::~AliTRDv0() | |
102 | { | |
103 | // | |
104 | // AliTRDv0 destructor | |
105 | // | |
106 | ||
107 | } | |
108 | ||
fe4da5cc | 109 | //_____________________________________________________________________________ |
110 | void AliTRDv0::CreateGeometry() | |
111 | { | |
112 | // | |
82bbf98a | 113 | // Create the GEANT geometry for the Transition Radiation Detector - Version 0 |
114 | // This version covers the full azimuth. | |
d3f347ff | 115 | // |
d3f347ff | 116 | |
82bbf98a | 117 | // Check that FRAME is there otherwise we have no place where to put the TRD |
8230f242 | 118 | AliModule* frame = gAlice->GetModule("FRAME"); |
119 | if (!frame) return; | |
fe4da5cc | 120 | |
82bbf98a | 121 | // Define the chambers |
122 | AliTRD::CreateGeometry(); | |
fe4da5cc | 123 | |
fe4da5cc | 124 | } |
125 | ||
126 | //_____________________________________________________________________________ | |
127 | void AliTRDv0::CreateMaterials() | |
128 | { | |
129 | // | |
130 | // Create materials for the Transition Radiation Detector | |
131 | // | |
82bbf98a | 132 | |
fe4da5cc | 133 | AliTRD::CreateMaterials(); |
82bbf98a | 134 | |
fe4da5cc | 135 | } |
136 | ||
137 | //_____________________________________________________________________________ | |
138 | void AliTRDv0::Init() | |
139 | { | |
140 | // | |
851d3db9 | 141 | // Initialize Transition Radiation Detector after geometry is built |
fe4da5cc | 142 | // |
82bbf98a | 143 | |
fe4da5cc | 144 | AliTRD::Init(); |
82bbf98a | 145 | |
82bbf98a | 146 | // Identifier of the sensitive volume (amplification region) |
147 | fIdSens = gMC->VolId("UL06"); | |
148 | ||
82bbf98a | 149 | // Identifier of the TRD-driftchambers |
150 | fIdChamber1 = gMC->VolId("UCIO"); | |
151 | fIdChamber2 = gMC->VolId("UCIM"); | |
152 | fIdChamber3 = gMC->VolId("UCII"); | |
153 | ||
851d3db9 | 154 | printf(" Fast simulator\n\n"); |
5c7f4665 | 155 | for (Int_t i = 0; i < 80; i++) printf("*"); |
156 | printf("\n"); | |
157 | ||
fe4da5cc | 158 | } |
159 | ||
160 | //_____________________________________________________________________________ | |
161 | void AliTRDv0::StepManager() | |
162 | { | |
163 | // | |
164 | // Procedure called at every step in the TRD | |
82bbf98a | 165 | // Fast simulator. If switched on, a hit is produced when a track |
166 | // crosses the border between amplification region and pad plane. | |
fe4da5cc | 167 | // |
168 | ||
851d3db9 | 169 | Int_t pla = 0; |
170 | Int_t cha = 0; | |
171 | Int_t sec = 0; | |
82bbf98a | 172 | Int_t iIdSens, icSens; |
82bbf98a | 173 | Int_t iIdChamber, icChamber; |
174 | ||
82bbf98a | 175 | Float_t hits[4]; |
9d0b222b | 176 | Int_t det[1]; |
fe4da5cc | 177 | |
0a6d8768 | 178 | TLorentzVector p; |
82bbf98a | 179 | TClonesArray &lhits = *fHits; |
fe4da5cc | 180 | |
82bbf98a | 181 | // Writing out hits enabled? |
182 | if (!(fHitsOn)) return; | |
fe4da5cc | 183 | |
fe4da5cc | 184 | // Use only charged tracks and count them only once per volume |
82bbf98a | 185 | if (gMC->TrackCharge() && |
186 | gMC->IsTrackExiting()) { | |
fe4da5cc | 187 | |
188 | // Check on sensitive volume | |
82bbf98a | 189 | iIdSens = gMC->CurrentVolID(icSens); |
190 | if (iIdSens == fIdSens) { | |
191 | ||
192 | gMC->TrackPosition(p); | |
193 | for (Int_t i = 0; i < 3; i++) hits[i] = p[i]; | |
194 | // No charge created | |
195 | hits[3] = 0; | |
196 | ||
851d3db9 | 197 | // The sector number (0 - 17) |
198 | // The numbering goes clockwise and starts at y = 0 | |
199 | Float_t phi = kRaddeg*TMath::ATan2(hits[0],hits[1]); | |
200 | if (phi < 90.) | |
201 | phi = phi + 270.; | |
202 | else | |
203 | phi = phi - 90.; | |
204 | sec = ((Int_t) (phi / 20)); | |
82bbf98a | 205 | |
d3f347ff | 206 | // The chamber number |
851d3db9 | 207 | // 0: outer left |
208 | // 1: middle left | |
209 | // 2: inner | |
210 | // 3: middle right | |
211 | // 4: outer right | |
5c7f4665 | 212 | iIdChamber = gMC->CurrentVolOffID(1,icChamber); |
82bbf98a | 213 | if (iIdChamber == fIdChamber1) |
851d3db9 | 214 | cha = (hits[2] < 0 ? 0 : 4); |
82bbf98a | 215 | else if (iIdChamber == fIdChamber2) |
851d3db9 | 216 | cha = (hits[2] < 0 ? 1 : 3); |
82bbf98a | 217 | else if (iIdChamber == fIdChamber3) |
851d3db9 | 218 | cha = 2; |
82bbf98a | 219 | |
851d3db9 | 220 | // The plane number (0 - 5) |
221 | pla = icChamber - TMath::Nint((Float_t) (icChamber / 7)) * 6 - 1; | |
82bbf98a | 222 | |
9d0b222b | 223 | det[0] = fGeometry->GetDetector(pla,cha,sec); |
851d3db9 | 224 | new(lhits[fNhits++]) AliTRDhit(fIshunt |
225 | ,gAlice->CurrentTrack() | |
9d0b222b | 226 | ,det |
851d3db9 | 227 | ,hits); |
d3f347ff | 228 | |
fe4da5cc | 229 | } |
d3f347ff | 230 | |
fe4da5cc | 231 | } |
d3f347ff | 232 | |
fe4da5cc | 233 | } |