1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
18 Revision 1.17 2002/10/14 14:57:32 hristov
19 Merging the VirtualMC branch to the main development branch (HEAD)
21 Revision 1.16.6.2 2002/07/24 10:07:52 alibrary
24 Revision 1.16.6.1 2002/06/10 15:12:46 hristov
27 Revision 1.16 2001/10/10 11:29:17 morsch
28 Use segmentation v1 and wire sag as default. It does not work otherwise. Why ?
30 Revision 1.15 2001/08/30 09:51:23 hristov
31 The operator[] is replaced by At() or AddAt() in case of TObjArray.
33 Revision 1.14 2001/05/16 14:57:20 alibrary
34 New files for folders and Stack
36 Revision 1.13 2001/05/10 12:28:04 jbarbosa
37 Repositioned the RICH modules.
39 Revision 1.12 2001/02/23 17:26:12 jbarbosa
40 Setters for wire sag effect and voltage values.
42 Revision 1.11 2001/02/13 20:10:33 jbarbosa
43 Removed call to SetNSec() (obsolete). Fixed bug in chamber initialisation (not all chambers were initialised).
45 Revision 1.10 2000/12/20 14:08:02 jbarbosa
46 Removed dependencies on TGeant3 (thanks to F. Carminati and I. Hrivnacova)
48 Revision 1.9 2000/12/18 17:44:40 jbarbosa
49 Took two lines out of output.
51 Revision 1.8 2000/11/01 15:39:00 jbarbosa
52 Updated default geometry.
54 Revision 1.7 2000/10/03 21:44:09 morsch
55 Use AliSegmentation and AliHit abstract base classes.
57 Revision 1.6 2000/07/10 15:28:39 fca
58 Correction of the inheritance scheme
60 Revision 1.5 2000/06/30 16:38:51 dibari
63 Revision 1.4 2000/06/13 13:13:40 jbarbosa
64 Correcting previous correction...
66 Revision 1.3 2000/06/13 13:06:38 jbarbosa
67 Fixed compiling error for HP (multiple declaration)
69 Revision 1.2 2000/06/12 15:36:16 jbarbosa
72 Revision 1.1 2000/06/09 15:00:31 jbarbosa
73 New full version. All parameters configurable.
75 Revision 1.9 2000/05/31 08:19:38 jbarbosa
76 Fixed bug in StepManager
78 Revision 1.8 2000/05/26 17:30:08 jbarbosa
79 Cerenkov angle now stored within cerenkov data structure.
81 Revision 1.7 2000/05/18 10:31:36 jbarbosa
82 Fixed positioning of spacers inside freon.
83 Fixed positioning of proximity gap
85 Fixed cut on neutral particles in the StepManager.
87 Revision 1.6 2000/04/28 11:51:58 morsch
88 Dimensions of arrays hits and Ckov_data corrected.
90 Revision 1.5 2000/04/19 13:28:46 morsch
91 Major changes in geometry (parametrised), materials (updated) and
92 step manager (diagnostics) (JB, AM)
98 //////////////////////////////////////////////////////////
99 // Manager and hits classes for set: RICH full version //
100 //////////////////////////////////////////////////////////
105 #include <TParticle.h>
107 #include "AliRICHv1.h"
108 #include "AliRICHHit.h"
109 #include "AliSegmentation.h"
110 #include "AliRICHResponse.h"
111 #include "AliRICHSegmentationV1.h"
112 #include "AliRICHResponseV0.h"
113 #include "AliRICHGeometry.h"
116 #include "Riostream.h"
117 #include "AliConst.h"
122 //___________________________________________
123 AliRICHv1::AliRICHv1()
126 // Default constructor fo AliRICHvv1 (full version)
131 //___________________________________________
132 AliRICHv1::AliRICHv1(const char *name, const char *title)
133 : AliRICH(name,title)
136 // Full version of RICH with hits and diagnostics
139 // Default Segmentation, no hits
140 AliRICHSegmentationV1* segmentation = new AliRICHSegmentationV1;
142 // Segmentation parameters
143 segmentation->SetPadSize(0.84,0.80);
144 segmentation->SetDAnod(0.84/2);
146 // Geometry parameters
147 AliRICHGeometry* geometry = new AliRICHGeometry;
148 geometry->SetGapThickness(8);
149 geometry->SetProximityGapThickness(.4);
150 geometry->SetQuartzLength(133);
151 geometry->SetQuartzWidth(127.9);
152 geometry->SetQuartzThickness(.5);
153 geometry->SetOuterFreonLength(133);
154 geometry->SetOuterFreonWidth(41.3);
155 geometry->SetInnerFreonLength(133);
156 geometry->SetInnerFreonWidth(41.3);
157 geometry->SetFreonThickness(1.5);
159 // Response parameters
160 AliRICHResponseV0* response = new AliRICHResponseV0;
161 response->SetSigmaIntegration(5.);
162 response->SetChargeSlope(27.);
163 response->SetChargeSpread(0.18, 0.18);
164 response->SetMaxAdc(4096);
165 response->SetAlphaFeedback(0.036);
166 response->SetEIonisation(26.e-9);
167 response->SetSqrtKx3(0.77459667);
168 response->SetKx2(0.962);
169 response->SetKx4(0.379);
170 response->SetSqrtKy3(0.77459667);
171 response->SetKy2(0.962);
172 response->SetKy4(0.379);
173 response->SetPitch(0.25);
174 response->SetWireSag(1); // 1->On, 0->Off
175 response->SetVoltage(2150); // Should only be 2000, 2050, 2100 or 2150
178 // AliRICH *RICH = (AliRICH *) gAlice->GetDetector("RICH");
184 fChambers = new TObjArray(kNCH);
185 for (i=0; i<kNCH; i++) {
187 //PH (*fChambers)[i] = new AliRICHChamber();
188 fChambers->AddAt(new AliRICHChamber(), i);
192 for (i=0; i<kNCH; i++) {
193 SetGeometryModel(i,geometry);
194 SetSegmentationModel(i, segmentation);
195 SetResponseModel(i, response);
202 void AliRICHv1::Init()
206 printf("%s: *********************************** RICH_INIT ***********************************\n",ClassName());
207 printf("%s: * *\n",ClassName());
208 printf("%s: * AliRICHv1 Full version started *\n",ClassName());
209 printf("%s: * *\n",ClassName());
213 AliSegmentation* segmentation;
214 AliRICHGeometry* geometry;
215 AliRICHResponse* response;
219 // Initialize Tracking Chambers
221 for (Int_t i=0; i<kNCH; i++) {
223 //PH ( (AliRICHChamber*) (*fChambers)[i])->Init(i);
224 ( (AliRICHChamber*)fChambers->At(i))->Init(i);
228 // Set the chamber (sensitive region) GEANT identifier
230 //PH ((AliRICHChamber*)(*fChambers)[0])->SetGid(1);
231 //PH ((AliRICHChamber*)(*fChambers)[1])->SetGid(2);
232 //PH ((AliRICHChamber*)(*fChambers)[2])->SetGid(3);
233 //PH ((AliRICHChamber*)(*fChambers)[3])->SetGid(4);
234 //PH ((AliRICHChamber*)(*fChambers)[4])->SetGid(5);
235 //PH ((AliRICHChamber*)(*fChambers)[5])->SetGid(6);
236 //PH ((AliRICHChamber*)(*fChambers)[6])->SetGid(7);
238 ((AliRICHChamber*)fChambers->At(0))->SetGid(1);
239 ((AliRICHChamber*)fChambers->At(1))->SetGid(2);
240 ((AliRICHChamber*)fChambers->At(2))->SetGid(3);
241 ((AliRICHChamber*)fChambers->At(3))->SetGid(4);
242 ((AliRICHChamber*)fChambers->At(4))->SetGid(5);
243 ((AliRICHChamber*)fChambers->At(5))->SetGid(6);
244 ((AliRICHChamber*)fChambers->At(6))->SetGid(7);
247 segmentation=Chamber(0).GetSegmentationModel(0);
248 geometry=Chamber(0).GetGeometryModel();
249 response=Chamber(0).GetResponseModel();
251 Float_t offset = 490 + 1.276 - geometry->GetGapThickness()/2; //distance from center of mother volume to methane
252 Float_t deltaphi = 19.5; //phi angle between center of chambers - z direction
253 Float_t deltatheta = 20; //theta angle between center of chambers - x direction
254 Float_t cosphi = TMath::Cos(deltaphi*TMath::Pi()/180);
255 Float_t sinphi = TMath::Sin(deltaphi*TMath::Pi()/180);
256 Float_t costheta = TMath::Cos(deltatheta*TMath::Pi()/180);
257 Float_t sintheta = TMath::Sin(deltatheta*TMath::Pi()/180);
259 Float_t pos1[3]={0. , offset*cosphi , offset*sinphi};
260 Float_t pos2[3]={offset*sintheta , offset*costheta , 0. };
261 Float_t pos3[3]={0. , offset , 0.};
262 Float_t pos4[3]={-offset*sintheta , offset*costheta , 0.};
263 Float_t pos5[3]={offset*sinphi , offset*costheta*cosphi, -offset*sinphi};
264 Float_t pos6[3]={0. , offset*cosphi , -offset*sinphi};
265 Float_t pos7[3]={ -offset*sinphi , offset*costheta*cosphi, -offset*sinphi};
267 Chamber(0).SetChamberTransform(pos1[0],pos1[1],pos1[2],new TRotMatrix("rot993","rot993",90., 0. , 90. - deltaphi, 90. , deltaphi, -90. ));
268 Chamber(1).SetChamberTransform(pos2[0],pos2[1],pos2[2],new TRotMatrix("rot994","rot994",90., -deltatheta , 90. , 90.- deltatheta , 0. , 0. ));
269 Chamber(2).SetChamberTransform(pos3[0],pos3[1],pos3[2],new TRotMatrix("rot995","rot995",90., 0. , 90. , 90. , 0. , 0. ));
270 Chamber(3).SetChamberTransform(pos4[0],pos4[1],pos4[2],new TRotMatrix("rot996","rot996",90., deltatheta , 90. , 90 + deltatheta , 0. , 0. ));
271 Chamber(4).SetChamberTransform(pos5[0],pos5[1],pos5[2],new TRotMatrix("rot997","rot997",90., 360. - deltatheta, 108.2 , 90.- deltatheta ,18.2 , 90 - deltatheta));
272 Chamber(5).SetChamberTransform(pos6[0],pos6[1],pos6[2],new TRotMatrix("rot998","rot998",90., 0. , 90 + deltaphi , 90. , deltaphi, 90. ));
273 Chamber(6).SetChamberTransform(pos7[0],pos7[1],pos7[2],new TRotMatrix("rot999","rot999",90., deltatheta , 108.2 , 90.+ deltatheta ,18.2 , 90 + deltatheta));
276 printf("%s: * Pads : %3dx%3d *\n",
277 ClassName(),segmentation->Npx(),segmentation->Npy());
278 printf("%s: * Pad size : %5.2f x%5.2f mm2 *\n",
279 ClassName(),segmentation->Dpx(),segmentation->Dpy());
280 printf("%s: * Gap Thickness : %5.1f cm *\n",
281 ClassName(),geometry->GetGapThickness());
282 printf("%s: * Radiator Width : %5.1f cm *\n",
283 ClassName(),geometry->GetQuartzWidth());
284 printf("%s: * Radiator Length : %5.1f cm *\n",
285 ClassName(),geometry->GetQuartzLength());
286 printf("%s: * Freon Thickness : %5.1f cm *\n",
287 ClassName(),geometry->GetFreonThickness());
288 printf("%s: * Charge Slope : %5.1f ADC *\n",
289 ClassName(),response->ChargeSlope());
290 printf("%s: * Feedback Prob. : %5.2f %% *\n",
291 ClassName(),response->AlphaFeedback()*100);
292 printf("%s: * Debug Level : %3d *\n",
293 ClassName(),GetDebugLevel());
296 printf("%s: *********************************************************************************\n",