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 1.24 2002/10/14 14:57:32 hristov
19 Merging the VirtualMC branch to the main development branch (HEAD)
21 Revision 1.23.8.2 2002/07/24 10:07:52 alibrary
24 Revision 1.23.8.1 2002/06/10 15:12:46 hristov
27 Revision 1.23 2001/08/30 09:51:23 hristov
28 The operator[] is replaced by At() or AddAt() in case of TObjArray.
30 Revision 1.22 2001/05/16 14:57:20 alibrary
31 New files for folders and Stack
33 Revision 1.21 2001/05/10 12:28:15 jbarbosa
34 Repositioned the RICH modules.
36 Revision 1.20 2001/02/23 17:25:57 jbarbosa
37 Setters for wire sag effect and voltage values.
39 Revision 1.19 2001/02/13 20:10:22 jbarbosa
40 Removed call to SetNSec() (obsolete). Fixed bug in chamber initialisation (not all chambers were initialised).
42 Revision 1.18 2000/12/20 14:07:36 jbarbosa
43 Removed dependencies on TGeant3 (thanks to F. Carminati and I. Hrivnacova)
45 Revision 1.17 2000/12/18 17:44:29 jbarbosa
46 Took two lines out of output.
48 Revision 1.16 2000/10/03 21:44:09 morsch
49 Use AliSegmentation and AliHit abstract base classes.
51 Revision 1.15 2000/10/02 15:54:55 jbarbosa
52 New default version (15 mm freon).
54 Revision 1.14 2000/07/10 15:28:39 fca
55 Correction of the inheritance scheme
57 Revision 1.13 2000/06/30 16:38:15 dibari
60 Revision 1.12 2000/06/13 13:06:28 jbarbosa
61 Fixed compiling error for HP (multiple declaration)
63 Revision 1.11 2000/06/12 15:35:44 jbarbosa
66 Revision 1.10 2000/06/09 14:59:25 jbarbosa
67 New default version. No setters needed, no hits.
69 Revision 1.9 2000/05/31 08:19:38 jbarbosa
70 Fixed bug in StepManager
72 Revision 1.8 2000/05/26 17:30:08 jbarbosa
73 Cerenkov angle now stored within cerenkov data structure.
75 Revision 1.7 2000/05/18 10:31:36 jbarbosa
76 Fixed positioning of spacers inside freon.
77 Fixed positioning of proximity gap
79 Fixed cut on neutral particles in the StepManager.
81 Revision 1.6 2000/04/28 11:51:58 morsch
82 Dimensions of arrays hits and Ckov_data corrected.
84 Revision 1.5 2000/04/19 13:28:46 morsch
85 Major changes in geometry (parametrised), materials (updated) and
86 step manager (diagnostics) (JB, AM)
92 /////////////////////////////////////////////////////////////
93 // Manager and hits classes for set: RICH default version //
94 /////////////////////////////////////////////////////////////
100 #include "AliRICHv0.h"
101 #include "AliSegmentation.h"
102 #include "AliRICHResponse.h"
103 #include "AliRICHSegmentationV0.h"
104 #include "AliRICHResponseV0.h"
105 #include "AliRICHGeometry.h"
108 #include "Riostream.h"
109 #include "AliConst.h"
114 //___________________________________________
115 AliRICHv0::AliRICHv0() : AliRICH()
118 // Default constructor
123 //___________________________________________
124 AliRICHv0::AliRICHv0(const char *name, const char *title)
125 : AliRICH(name,title)
129 // Default Segmentation, no hits
130 AliRICHSegmentationV0* segmentation = new AliRICHSegmentationV0;
132 // Segmentation parameters
133 segmentation->SetPadSize(0.84,0.80);
134 segmentation->SetDAnod(0.84/2);
136 // Geometry parameters
137 AliRICHGeometry* geometry = new AliRICHGeometry;
138 geometry->SetGapThickness(8);
139 geometry->SetProximityGapThickness(.4);
140 geometry->SetQuartzLength(131);
141 geometry->SetQuartzWidth(126.2);
142 geometry->SetQuartzThickness(.5);
143 geometry->SetOuterFreonLength(131);
144 geometry->SetOuterFreonWidth(40.3);
145 geometry->SetInnerFreonLength(131);
146 geometry->SetInnerFreonWidth(40.3);
147 geometry->SetFreonThickness(1.5);
149 // Response parameters
150 AliRICHResponseV0* response = new AliRICHResponseV0;
151 response->SetSigmaIntegration(5.);
152 response->SetChargeSlope(27.);
153 response->SetChargeSpread(0.18, 0.18);
154 response->SetMaxAdc(4096);
155 response->SetAlphaFeedback(0.036);
156 response->SetEIonisation(26.e-9);
157 response->SetSqrtKx3(0.77459667);
158 response->SetKx2(0.962);
159 response->SetKx4(0.379);
160 response->SetSqrtKy3(0.77459667);
161 response->SetKy2(0.962);
162 response->SetKy4(0.379);
163 response->SetPitch(0.25);
164 response->SetWireSag(0); // 1->On, 0->Off
165 response->SetVoltage(2150); // Should only be 2000, 2050, 2100 or 2150
167 // AliRICH *RICH = (AliRICH *) gAlice->GetDetector("RICH");
173 fChambers = new TObjArray(kNCH);
174 for (i=0; i<kNCH; i++) {
176 //PH (*fChambers)[i] = new AliRICHChamber();
177 fChambers->AddAt(new AliRICHChamber(), i);
181 for (i=0; i<kNCH; i++) {
182 SetGeometryModel(i,geometry);
183 SetSegmentationModel(i, segmentation);
184 SetResponseModel(i, response);
191 //___________________________________________
193 void AliRICHv0::Init()
197 printf("%s: *********************************** RICH_INIT ***********************************\n",ClassName());
198 printf("%s: * *\n",ClassName());
199 printf("%s: * AliRICHv0 Default version started *\n",ClassName());
200 printf("%s: * *\n",ClassName());
204 AliSegmentation* segmentation;
205 AliRICHGeometry* geometry;
206 AliRICHResponse* response;
210 // Initialize Tracking Chambers
212 for (Int_t i=0; i<kNCH; i++) {
214 //PH ( (AliRICHChamber*) (*fChambers)[i])->Init(i);
215 ( (AliRICHChamber*) fChambers->At(i))->Init(i);
219 // Set the chamber (sensitive region) GEANT identifier
221 //PH ((AliRICHChamber*)(*fChambers)[0])->SetGid(1);
222 //PH ((AliRICHChamber*)(*fChambers)[1])->SetGid(2);
223 //PH ((AliRICHChamber*)(*fChambers)[2])->SetGid(3);
224 //PH ((AliRICHChamber*)(*fChambers)[3])->SetGid(4);
225 //PH ((AliRICHChamber*)(*fChambers)[4])->SetGid(5);
226 //PH ((AliRICHChamber*)(*fChambers)[5])->SetGid(6);
227 //PH ((AliRICHChamber*)(*fChambers)[6])->SetGid(7);
229 ((AliRICHChamber*)fChambers->At(0))->SetGid(1);
230 ((AliRICHChamber*)fChambers->At(1))->SetGid(2);
231 ((AliRICHChamber*)fChambers->At(2))->SetGid(3);
232 ((AliRICHChamber*)fChambers->At(3))->SetGid(4);
233 ((AliRICHChamber*)fChambers->At(4))->SetGid(5);
234 ((AliRICHChamber*)fChambers->At(5))->SetGid(6);
235 ((AliRICHChamber*)fChambers->At(6))->SetGid(7);
237 segmentation=Chamber(0).GetSegmentationModel(0);
238 geometry=Chamber(0).GetGeometryModel();
239 response=Chamber(0).GetResponseModel();
241 Float_t offset = 490 + 1.276 - geometry->GetGapThickness()/2; //distance from center of mother volume to methane
242 Float_t deltaphi = 19.5; //phi angle between center of chambers - z direction
243 Float_t deltatheta = 20; //theta angle between center of chambers - x direction
244 Float_t cosphi = TMath::Cos(deltaphi*TMath::Pi()/180);
245 Float_t sinphi = TMath::Sin(deltaphi*TMath::Pi()/180);
246 Float_t costheta = TMath::Cos(deltatheta*TMath::Pi()/180);
247 Float_t sintheta = TMath::Sin(deltatheta*TMath::Pi()/180);
249 Float_t pos1[3]={0. , offset*cosphi , offset*sinphi};
250 Float_t pos2[3]={offset*sintheta , offset*costheta , 0. };
251 Float_t pos3[3]={0. , offset , 0.};
252 Float_t pos4[3]={-offset*sintheta , offset*costheta , 0.};
253 Float_t pos5[3]={offset*sinphi , offset*costheta*cosphi, -offset*sinphi};
254 Float_t pos6[3]={0. , offset*cosphi , -offset*sinphi};
255 Float_t pos7[3]={ -offset*sinphi , offset*costheta*cosphi, -offset*sinphi};
257 Chamber(0).SetChamberTransform(pos1[0],pos1[1],pos1[2],new TRotMatrix("rot993","rot993",90., 0. , 90. - deltaphi, 90. , deltaphi, -90. ));
258 Chamber(1).SetChamberTransform(pos2[0],pos2[1],pos2[2],new TRotMatrix("rot994","rot994",90., -deltatheta , 90. , 90.- deltatheta , 0. , 0. ));
259 Chamber(2).SetChamberTransform(pos3[0],pos3[1],pos3[2],new TRotMatrix("rot995","rot995",90., 0. , 90. , 90. , 0. , 0. ));
260 Chamber(3).SetChamberTransform(pos4[0],pos4[1],pos4[2],new TRotMatrix("rot996","rot996",90., deltatheta , 90. , 90 + deltatheta , 0. , 0. ));
261 Chamber(4).SetChamberTransform(pos5[0],pos5[1],pos5[2],new TRotMatrix("rot997","rot997",90., 360. - deltatheta, 108.2 , 90.- deltatheta ,18.2 , 90 - deltatheta));
262 Chamber(5).SetChamberTransform(pos6[0],pos6[1],pos6[2],new TRotMatrix("rot998","rot998",90., 0. , 90 + deltaphi , 90. , deltaphi, 90. ));
263 Chamber(6).SetChamberTransform(pos7[0],pos7[1],pos7[2],new TRotMatrix("rot999","rot999",90., deltatheta , 108.2 , 90.+ deltatheta ,18.2 , 90 + deltatheta));
266 printf("%s: * Pads : %3dx%3d *\n",
267 ClassName(),segmentation->Npx(),segmentation->Npy());
268 printf("%s: * Pad size : %5.2f x%5.2f mm2 *\n",
269 ClassName(),segmentation->Dpx(),segmentation->Dpy());
270 printf("%s: * Gap Thickness : %5.1f cm *\n",
271 ClassName(),geometry->GetGapThickness());
272 printf("%s: * Radiator Width : %5.1f cm *\n",
273 ClassName(),geometry->GetQuartzWidth());
274 printf("%s: * Radiator Length : %5.1f cm *\n",
275 ClassName(),geometry->GetQuartzLength());
276 printf("%s: * Freon Thickness : %5.1f cm *\n",
277 ClassName(),geometry->GetFreonThickness());
278 printf("%s: * Charge Slope : %5.1f ADC *\n",
279 ClassName(),response->ChargeSlope());
280 printf("%s: * Feedback Prob. : %5.2f %% *\n",
281 ClassName(),response->AlphaFeedback()*100);
284 printf("%s: *********************************************************************************\n",