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 1.13 2001/05/10 12:28:04 jbarbosa
19 Repositioned the RICH modules.
21 Revision 1.12 2001/02/23 17:26:12 jbarbosa
22 Setters for wire sag effect and voltage values.
24 Revision 1.11 2001/02/13 20:10:33 jbarbosa
25 Removed call to SetNSec() (obsolete). Fixed bug in chamber initialisation (not all chambers were initialised).
27 Revision 1.10 2000/12/20 14:08:02 jbarbosa
28 Removed dependencies on TGeant3 (thanks to F. Carminati and I. Hrivnacova)
30 Revision 1.9 2000/12/18 17:44:40 jbarbosa
31 Took two lines out of output.
33 Revision 1.8 2000/11/01 15:39:00 jbarbosa
34 Updated default geometry.
36 Revision 1.7 2000/10/03 21:44:09 morsch
37 Use AliSegmentation and AliHit abstract base classes.
39 Revision 1.6 2000/07/10 15:28:39 fca
40 Correction of the inheritance scheme
42 Revision 1.5 2000/06/30 16:38:51 dibari
45 Revision 1.4 2000/06/13 13:13:40 jbarbosa
46 Correcting previous correction...
48 Revision 1.3 2000/06/13 13:06:38 jbarbosa
49 Fixed compiling error for HP (multiple declaration)
51 Revision 1.2 2000/06/12 15:36:16 jbarbosa
54 Revision 1.1 2000/06/09 15:00:31 jbarbosa
55 New full version. All parameters configurable.
57 Revision 1.9 2000/05/31 08:19:38 jbarbosa
58 Fixed bug in StepManager
60 Revision 1.8 2000/05/26 17:30:08 jbarbosa
61 Cerenkov angle now stored within cerenkov data structure.
63 Revision 1.7 2000/05/18 10:31:36 jbarbosa
64 Fixed positioning of spacers inside freon.
65 Fixed positioning of proximity gap
67 Fixed cut on neutral particles in the StepManager.
69 Revision 1.6 2000/04/28 11:51:58 morsch
70 Dimensions of arrays hits and Ckov_data corrected.
72 Revision 1.5 2000/04/19 13:28:46 morsch
73 Major changes in geometry (parametrised), materials (updated) and
74 step manager (diagnostics) (JB, AM)
80 //////////////////////////////////////////////////////////
81 // Manager and hits classes for set: RICH full version //
82 //////////////////////////////////////////////////////////
87 #include <TParticle.h>
89 #include "AliRICHv1.h"
90 #include "AliRICHHit.h"
91 #include "AliSegmentation.h"
92 #include "AliRICHResponse.h"
93 #include "AliRICHSegmentationV0.h"
94 #include "AliRICHResponseV0.h"
95 #include "AliRICHGeometry.h"
99 #include "AliCallf77.h"
100 #include "AliConst.h"
105 //___________________________________________
106 AliRICHv1::AliRICHv1()
109 // Default constructor fo AliRICHvv1 (full version)
114 //___________________________________________
115 AliRICHv1::AliRICHv1(const char *name, const char *title)
116 : AliRICH(name,title)
119 // Full version of RICH with hits and diagnostics
122 // Default Segmentation, no hits
123 AliRICHSegmentationV0* segmentation = new AliRICHSegmentationV0;
125 // Segmentation parameters
126 segmentation->SetPadSize(0.84,0.80);
127 segmentation->SetDAnod(0.84/2);
129 // Geometry parameters
130 AliRICHGeometry* geometry = new AliRICHGeometry;
131 geometry->SetGapThickness(8);
132 geometry->SetProximityGapThickness(.4);
133 geometry->SetQuartzLength(133);
134 geometry->SetQuartzWidth(127.9);
135 geometry->SetQuartzThickness(.5);
136 geometry->SetOuterFreonLength(133);
137 geometry->SetOuterFreonWidth(41.3);
138 geometry->SetInnerFreonLength(133);
139 geometry->SetInnerFreonWidth(41.3);
140 geometry->SetFreonThickness(1.5);
142 // Response parameters
143 AliRICHResponseV0* response = new AliRICHResponseV0;
144 response->SetSigmaIntegration(5.);
145 response->SetChargeSlope(27.);
146 response->SetChargeSpread(0.18, 0.18);
147 response->SetMaxAdc(4096);
148 response->SetAlphaFeedback(0.036);
149 response->SetEIonisation(26.e-9);
150 response->SetSqrtKx3(0.77459667);
151 response->SetKx2(0.962);
152 response->SetKx4(0.379);
153 response->SetSqrtKy3(0.77459667);
154 response->SetKy2(0.962);
155 response->SetKy4(0.379);
156 response->SetPitch(0.25);
157 response->SetWireSag(0); // 1->On, 0->Off
158 response->SetVoltage(2150); // Should only be 2000, 2050, 2100 or 2150
161 // AliRICH *RICH = (AliRICH *) gAlice->GetDetector("RICH");
167 fChambers = new TObjArray(kNCH);
168 for (i=0; i<kNCH; i++) {
170 (*fChambers)[i] = new AliRICHChamber();
174 for (i=0; i<kNCH; i++) {
175 SetGeometryModel(i,geometry);
176 SetSegmentationModel(i, segmentation);
177 SetResponseModel(i, response);
184 void AliRICHv1::Init()
188 printf("%s: *********************************** RICH_INIT ***********************************\n",ClassName());
189 printf("%s: * *\n",ClassName());
190 printf("%s: * AliRICHv1 Full version started *\n",ClassName());
191 printf("%s: * *\n",ClassName());
195 AliSegmentation* segmentation;
196 AliRICHGeometry* geometry;
197 AliRICHResponse* response;
201 // Initialize Tracking Chambers
203 for (Int_t i=0; i<kNCH; i++) {
205 ( (AliRICHChamber*) (*fChambers)[i])->Init(i);
209 // Set the chamber (sensitive region) GEANT identifier
211 ((AliRICHChamber*)(*fChambers)[0])->SetGid(1);
212 ((AliRICHChamber*)(*fChambers)[1])->SetGid(2);
213 ((AliRICHChamber*)(*fChambers)[2])->SetGid(3);
214 ((AliRICHChamber*)(*fChambers)[3])->SetGid(4);
215 ((AliRICHChamber*)(*fChambers)[4])->SetGid(5);
216 ((AliRICHChamber*)(*fChambers)[5])->SetGid(6);
217 ((AliRICHChamber*)(*fChambers)[6])->SetGid(7);
219 segmentation=Chamber(0).GetSegmentationModel(0);
220 geometry=Chamber(0).GetGeometryModel();
221 response=Chamber(0).GetResponseModel();
223 Float_t offset = 490 + 1.276 - geometry->GetGapThickness()/2; //distance from center of mother volume to methane
224 Float_t deltaphi = 19.5; //phi angle between center of chambers - z direction
225 Float_t deltatheta = 20; //theta angle between center of chambers - x direction
226 Float_t cosphi = TMath::Cos(deltaphi*TMath::Pi()/180);
227 Float_t sinphi = TMath::Sin(deltaphi*TMath::Pi()/180);
228 Float_t costheta = TMath::Cos(deltatheta*TMath::Pi()/180);
229 Float_t sintheta = TMath::Sin(deltatheta*TMath::Pi()/180);
231 Float_t pos1[3]={0. , offset*cosphi , offset*sinphi};
232 Float_t pos2[3]={offset*sintheta , offset*costheta , 0. };
233 Float_t pos3[3]={0. , offset , 0.};
234 Float_t pos4[3]={-offset*sintheta , offset*costheta , 0.};
235 Float_t pos5[3]={offset*sinphi , offset*costheta*cosphi, -offset*sinphi};
236 Float_t pos6[3]={0. , offset*cosphi , -offset*sinphi};
237 Float_t pos7[3]={ -offset*sinphi , offset*costheta*cosphi, -offset*sinphi};
239 Chamber(0).SetChamberTransform(pos1[0],pos1[1],pos1[2],new TRotMatrix("rot993","rot993",90., 0. , 90. - deltaphi, 90. , deltaphi, -90. ));
240 Chamber(1).SetChamberTransform(pos2[0],pos2[1],pos2[2],new TRotMatrix("rot994","rot994",90., -deltatheta , 90. , 90.- deltatheta , 0. , 0. ));
241 Chamber(2).SetChamberTransform(pos3[0],pos3[1],pos3[2],new TRotMatrix("rot995","rot995",90., 0. , 90. , 90. , 0. , 0. ));
242 Chamber(3).SetChamberTransform(pos4[0],pos4[1],pos4[2],new TRotMatrix("rot996","rot996",90., deltatheta , 90. , 90 + deltatheta , 0. , 0. ));
243 Chamber(4).SetChamberTransform(pos5[0],pos5[1],pos5[2],new TRotMatrix("rot997","rot997",90., 360. - deltatheta, 108.2 , 90.- deltatheta ,18.2 , 90 - deltatheta));
244 Chamber(5).SetChamberTransform(pos6[0],pos6[1],pos6[2],new TRotMatrix("rot998","rot998",90., 0. , 90 + deltaphi , 90. , deltaphi, 90. ));
245 Chamber(6).SetChamberTransform(pos7[0],pos7[1],pos7[2],new TRotMatrix("rot999","rot999",90., deltatheta , 108.2 , 90.+ deltatheta ,18.2 , 90 + deltatheta));
248 printf("%s: * Pads : %3dx%3d *\n",
249 ClassName(),segmentation->Npx(),segmentation->Npy());
250 printf("%s: * Pad size : %5.2f x%5.2f mm2 *\n",
251 ClassName(),segmentation->Dpx(),segmentation->Dpy());
252 printf("%s: * Gap Thickness : %5.1f cm *\n",
253 ClassName(),geometry->GetGapThickness());
254 printf("%s: * Radiator Width : %5.1f cm *\n",
255 ClassName(),geometry->GetQuartzWidth());
256 printf("%s: * Radiator Length : %5.1f cm *\n",
257 ClassName(),geometry->GetQuartzLength());
258 printf("%s: * Freon Thickness : %5.1f cm *\n",
259 ClassName(),geometry->GetFreonThickness());
260 printf("%s: * Charge Slope : %5.1f ADC *\n",
261 ClassName(),response->ChargeSlope());
262 printf("%s: * Feedback Prob. : %5.2f %% *\n",
263 ClassName(),response->AlphaFeedback()*100);
264 printf("%s: * Debug Level : %3d *\n",
265 ClassName(),GetDebugLevel());
268 printf("%s: *********************************************************************************\n",