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 1.16.6.2 2002/07/24 10:07:52 alibrary
21 Revision 1.16.6.1 2002/06/10 15:12:46 hristov
24 Revision 1.16 2001/10/10 11:29:17 morsch
25 Use segmentation v1 and wire sag as default. It does not work otherwise. Why ?
27 Revision 1.15 2001/08/30 09:51:23 hristov
28 The operator[] is replaced by At() or AddAt() in case of TObjArray.
30 Revision 1.14 2001/05/16 14:57:20 alibrary
31 New files for folders and Stack
33 Revision 1.13 2001/05/10 12:28:04 jbarbosa
34 Repositioned the RICH modules.
36 Revision 1.12 2001/02/23 17:26:12 jbarbosa
37 Setters for wire sag effect and voltage values.
39 Revision 1.11 2001/02/13 20:10:33 jbarbosa
40 Removed call to SetNSec() (obsolete). Fixed bug in chamber initialisation (not all chambers were initialised).
42 Revision 1.10 2000/12/20 14:08:02 jbarbosa
43 Removed dependencies on TGeant3 (thanks to F. Carminati and I. Hrivnacova)
45 Revision 1.9 2000/12/18 17:44:40 jbarbosa
46 Took two lines out of output.
48 Revision 1.8 2000/11/01 15:39:00 jbarbosa
49 Updated default geometry.
51 Revision 1.7 2000/10/03 21:44:09 morsch
52 Use AliSegmentation and AliHit abstract base classes.
54 Revision 1.6 2000/07/10 15:28:39 fca
55 Correction of the inheritance scheme
57 Revision 1.5 2000/06/30 16:38:51 dibari
60 Revision 1.4 2000/06/13 13:13:40 jbarbosa
61 Correcting previous correction...
63 Revision 1.3 2000/06/13 13:06:38 jbarbosa
64 Fixed compiling error for HP (multiple declaration)
66 Revision 1.2 2000/06/12 15:36:16 jbarbosa
69 Revision 1.1 2000/06/09 15:00:31 jbarbosa
70 New full version. All parameters configurable.
72 Revision 1.9 2000/05/31 08:19:38 jbarbosa
73 Fixed bug in StepManager
75 Revision 1.8 2000/05/26 17:30:08 jbarbosa
76 Cerenkov angle now stored within cerenkov data structure.
78 Revision 1.7 2000/05/18 10:31:36 jbarbosa
79 Fixed positioning of spacers inside freon.
80 Fixed positioning of proximity gap
82 Fixed cut on neutral particles in the StepManager.
84 Revision 1.6 2000/04/28 11:51:58 morsch
85 Dimensions of arrays hits and Ckov_data corrected.
87 Revision 1.5 2000/04/19 13:28:46 morsch
88 Major changes in geometry (parametrised), materials (updated) and
89 step manager (diagnostics) (JB, AM)
95 //////////////////////////////////////////////////////////
96 // Manager and hits classes for set: RICH full version //
97 //////////////////////////////////////////////////////////
102 #include <TParticle.h>
104 #include "AliRICHv1.h"
105 #include "AliRICHHit.h"
106 #include "AliSegmentation.h"
107 #include "AliRICHResponse.h"
108 #include "AliRICHSegmentationV1.h"
109 #include "AliRICHResponseV0.h"
110 #include "AliRICHGeometry.h"
113 #include "iostream.h"
114 #include "AliConst.h"
119 //___________________________________________
120 AliRICHv1::AliRICHv1()
123 // Default constructor fo AliRICHvv1 (full version)
128 //___________________________________________
129 AliRICHv1::AliRICHv1(const char *name, const char *title)
130 : AliRICH(name,title)
133 // Full version of RICH with hits and diagnostics
136 // Default Segmentation, no hits
137 AliRICHSegmentationV1* segmentation = new AliRICHSegmentationV1;
139 // Segmentation parameters
140 segmentation->SetPadSize(0.84,0.80);
141 segmentation->SetDAnod(0.84/2);
143 // Geometry parameters
144 AliRICHGeometry* geometry = new AliRICHGeometry;
145 geometry->SetGapThickness(8);
146 geometry->SetProximityGapThickness(.4);
147 geometry->SetQuartzLength(133);
148 geometry->SetQuartzWidth(127.9);
149 geometry->SetQuartzThickness(.5);
150 geometry->SetOuterFreonLength(133);
151 geometry->SetOuterFreonWidth(41.3);
152 geometry->SetInnerFreonLength(133);
153 geometry->SetInnerFreonWidth(41.3);
154 geometry->SetFreonThickness(1.5);
156 // Response parameters
157 AliRICHResponseV0* response = new AliRICHResponseV0;
158 response->SetSigmaIntegration(5.);
159 response->SetChargeSlope(27.);
160 response->SetChargeSpread(0.18, 0.18);
161 response->SetMaxAdc(4096);
162 response->SetAlphaFeedback(0.036);
163 response->SetEIonisation(26.e-9);
164 response->SetSqrtKx3(0.77459667);
165 response->SetKx2(0.962);
166 response->SetKx4(0.379);
167 response->SetSqrtKy3(0.77459667);
168 response->SetKy2(0.962);
169 response->SetKy4(0.379);
170 response->SetPitch(0.25);
171 response->SetWireSag(1); // 1->On, 0->Off
172 response->SetVoltage(2150); // Should only be 2000, 2050, 2100 or 2150
175 // AliRICH *RICH = (AliRICH *) gAlice->GetDetector("RICH");
181 fChambers = new TObjArray(kNCH);
182 for (i=0; i<kNCH; i++) {
184 //PH (*fChambers)[i] = new AliRICHChamber();
185 fChambers->AddAt(new AliRICHChamber(), i);
189 for (i=0; i<kNCH; i++) {
190 SetGeometryModel(i,geometry);
191 SetSegmentationModel(i, segmentation);
192 SetResponseModel(i, response);
199 void AliRICHv1::Init()
203 printf("%s: *********************************** RICH_INIT ***********************************\n",ClassName());
204 printf("%s: * *\n",ClassName());
205 printf("%s: * AliRICHv1 Full version started *\n",ClassName());
206 printf("%s: * *\n",ClassName());
210 AliSegmentation* segmentation;
211 AliRICHGeometry* geometry;
212 AliRICHResponse* response;
216 // Initialize Tracking Chambers
218 for (Int_t i=0; i<kNCH; i++) {
220 //PH ( (AliRICHChamber*) (*fChambers)[i])->Init(i);
221 ( (AliRICHChamber*)fChambers->At(i))->Init(i);
225 // Set the chamber (sensitive region) GEANT identifier
227 //PH ((AliRICHChamber*)(*fChambers)[0])->SetGid(1);
228 //PH ((AliRICHChamber*)(*fChambers)[1])->SetGid(2);
229 //PH ((AliRICHChamber*)(*fChambers)[2])->SetGid(3);
230 //PH ((AliRICHChamber*)(*fChambers)[3])->SetGid(4);
231 //PH ((AliRICHChamber*)(*fChambers)[4])->SetGid(5);
232 //PH ((AliRICHChamber*)(*fChambers)[5])->SetGid(6);
233 //PH ((AliRICHChamber*)(*fChambers)[6])->SetGid(7);
235 ((AliRICHChamber*)fChambers->At(0))->SetGid(1);
236 ((AliRICHChamber*)fChambers->At(1))->SetGid(2);
237 ((AliRICHChamber*)fChambers->At(2))->SetGid(3);
238 ((AliRICHChamber*)fChambers->At(3))->SetGid(4);
239 ((AliRICHChamber*)fChambers->At(4))->SetGid(5);
240 ((AliRICHChamber*)fChambers->At(5))->SetGid(6);
241 ((AliRICHChamber*)fChambers->At(6))->SetGid(7);
244 segmentation=Chamber(0).GetSegmentationModel(0);
245 geometry=Chamber(0).GetGeometryModel();
246 response=Chamber(0).GetResponseModel();
248 Float_t offset = 490 + 1.276 - geometry->GetGapThickness()/2; //distance from center of mother volume to methane
249 Float_t deltaphi = 19.5; //phi angle between center of chambers - z direction
250 Float_t deltatheta = 20; //theta angle between center of chambers - x direction
251 Float_t cosphi = TMath::Cos(deltaphi*TMath::Pi()/180);
252 Float_t sinphi = TMath::Sin(deltaphi*TMath::Pi()/180);
253 Float_t costheta = TMath::Cos(deltatheta*TMath::Pi()/180);
254 Float_t sintheta = TMath::Sin(deltatheta*TMath::Pi()/180);
256 Float_t pos1[3]={0. , offset*cosphi , offset*sinphi};
257 Float_t pos2[3]={offset*sintheta , offset*costheta , 0. };
258 Float_t pos3[3]={0. , offset , 0.};
259 Float_t pos4[3]={-offset*sintheta , offset*costheta , 0.};
260 Float_t pos5[3]={offset*sinphi , offset*costheta*cosphi, -offset*sinphi};
261 Float_t pos6[3]={0. , offset*cosphi , -offset*sinphi};
262 Float_t pos7[3]={ -offset*sinphi , offset*costheta*cosphi, -offset*sinphi};
264 Chamber(0).SetChamberTransform(pos1[0],pos1[1],pos1[2],new TRotMatrix("rot993","rot993",90., 0. , 90. - deltaphi, 90. , deltaphi, -90. ));
265 Chamber(1).SetChamberTransform(pos2[0],pos2[1],pos2[2],new TRotMatrix("rot994","rot994",90., -deltatheta , 90. , 90.- deltatheta , 0. , 0. ));
266 Chamber(2).SetChamberTransform(pos3[0],pos3[1],pos3[2],new TRotMatrix("rot995","rot995",90., 0. , 90. , 90. , 0. , 0. ));
267 Chamber(3).SetChamberTransform(pos4[0],pos4[1],pos4[2],new TRotMatrix("rot996","rot996",90., deltatheta , 90. , 90 + deltatheta , 0. , 0. ));
268 Chamber(4).SetChamberTransform(pos5[0],pos5[1],pos5[2],new TRotMatrix("rot997","rot997",90., 360. - deltatheta, 108.2 , 90.- deltatheta ,18.2 , 90 - deltatheta));
269 Chamber(5).SetChamberTransform(pos6[0],pos6[1],pos6[2],new TRotMatrix("rot998","rot998",90., 0. , 90 + deltaphi , 90. , deltaphi, 90. ));
270 Chamber(6).SetChamberTransform(pos7[0],pos7[1],pos7[2],new TRotMatrix("rot999","rot999",90., deltatheta , 108.2 , 90.+ deltatheta ,18.2 , 90 + deltatheta));
273 printf("%s: * Pads : %3dx%3d *\n",
274 ClassName(),segmentation->Npx(),segmentation->Npy());
275 printf("%s: * Pad size : %5.2f x%5.2f mm2 *\n",
276 ClassName(),segmentation->Dpx(),segmentation->Dpy());
277 printf("%s: * Gap Thickness : %5.1f cm *\n",
278 ClassName(),geometry->GetGapThickness());
279 printf("%s: * Radiator Width : %5.1f cm *\n",
280 ClassName(),geometry->GetQuartzWidth());
281 printf("%s: * Radiator Length : %5.1f cm *\n",
282 ClassName(),geometry->GetQuartzLength());
283 printf("%s: * Freon Thickness : %5.1f cm *\n",
284 ClassName(),geometry->GetFreonThickness());
285 printf("%s: * Charge Slope : %5.1f ADC *\n",
286 ClassName(),response->ChargeSlope());
287 printf("%s: * Feedback Prob. : %5.2f %% *\n",
288 ClassName(),response->AlphaFeedback()*100);
289 printf("%s: * Debug Level : %3d *\n",
290 ClassName(),GetDebugLevel());
293 printf("%s: *********************************************************************************\n",