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 1.11 2005/12/15 14:17:29 decaro
19 Correction of some parameter values
21 Revision 1.10 2005/12/15 08:55:32 decaro
22 New TOF geometry description (V5) -G. Cara Romeo and A. De Caro
24 Revision 1.9.1 2005/07/19 A. De Caro
25 Created daughter-classes AliTOFGeometryV4 and AliTOFGeometryV5
26 => moved global methods IsInsideThePad, DistanceToPad,
27 GetPlate, GetSector, GetStrip, GetPadX, GetPadZ,
28 GetX, GetY, GetZ, GetPadDx, GetPadDy and GetPadDz
31 Revision 1.9 2005/10/20 12:41:35 hristov
32 Implementation of parallel tracking. It is not the default version, one can use it passing option MI from AliReconstruction to TOF (M.Ivanov)
34 Revision 1.8 2004/11/29 08:28:01 decaro
35 Introduction of a new TOF constant (i.e. TDC bin width)
37 Revision 1.7 2004/11/05 07:20:08 decaro
38 TOF library splitting and conversion of some printout messages in AliLog schema (T.Kuhr)
40 Revision 1.6 2004/06/15 15:27:59 decaro
41 TOF raw data: preliminary implementation and style changes
43 Revision 1.5 2004/04/20 14:37:22 hristov
44 Using TMath::Abs instead of fabs, arrays of variable size created/deleted correctly (HP,Sun)
46 Revision 1.4 2004/04/13 09:42:51 decaro
47 Track reconstruction code for TOF: updating
49 Revision 1.3 2003/12/29 18:40:39 hristov
50 Copy/paste error corrected
52 Revision 1.2 2003/12/29 17:26:01 hristov
53 Using enum to initaialize static ints in the header file, the initialization of static floats moved to the implementation file
55 Revision 1.1 2003/12/29 15:18:03 decaro
56 TOF geometry updating (addition of AliTOFGeometry)
58 Revision 0.05 2004/6/11 A.De Caro
59 Implement Global method NpadXStrip
60 Insert four float constants (originally in AliTOF class)
61 Revision 0.04 2004/4/05 S.Arcelli
62 Implement Global methods IsInsideThePad
64 Revision 0.03 2003/12/14 S.Arcelli
65 Set Phi range [-180,180]->[0,360]
66 Revision 0.02 2003/12/10 S.Arcelli:
67 Implement Global methods GetPos & GetDetID
68 Revision 0.01 2003/12/04 S.Arcelli
72 #include <Riostream.h>
73 ///////////////////////////////////////////////////////////////////////////////
75 // TOF Geometry class //
77 ///////////////////////////////////////////////////////////////////////////////
81 #include "AliTOFGeometry.h"
83 ClassImp(AliTOFGeometry)
85 const Int_t AliTOFGeometry::fgkTimeDiff = 25000; // Min signal separation (ps)
87 const Float_t AliTOFGeometry::fgkXPad = 2.5; // Pad size in the x direction (cm)
88 const Float_t AliTOFGeometry::fgkZPad = 3.5; // Pad size in the z direction (cm)
90 const Float_t AliTOFGeometry::fgkStripLength = 122.;// Strip Length (rho X phi direction) (cm)
92 const Float_t AliTOFGeometry::fgkSigmaForTail1= 2.; //Sig1 for simulation of TDC tails
93 const Float_t AliTOFGeometry::fgkSigmaForTail2= 0.5;//Sig2 for simulation of TDC tails
95 const Float_t AliTOFGeometry::fgkTdcBin = 24.4; // time-window for the TDC bins [ps]
97 //_____________________________________________________________________________
98 AliTOFGeometry::AliTOFGeometry()
101 // AliTOFGeometry default constructor
104 kNStripC = 20; // number of strips in C type module
105 kZlenA = 106.0; // length (cm) of the A module
106 kZlenB = 141.0; // length (cm) of the B module
107 kZlenC = 177.5; // length (cm) of the C module
108 kMaxhZtof = 371.5; // Max half z-size of TOF (cm)
110 fgkxTOF = 371.; // Inner radius of the TOF for Reconstruction (cm)
111 fgkRmin = 370.; // Inner radius of the TOF (cm)
112 fgkRmax = 399.; // Outer radius of the TOF (cm)
118 //_____________________________________________________________________________
119 AliTOFGeometry::~AliTOFGeometry()
122 // AliTOFGeometry destructor
126 //_____________________________________________________________________________
127 void AliTOFGeometry::Init()
130 // Initialize strip Tilt Angles and Heights
133 fPhiSec = 360./kNSectors;
135 Float_t const kangles[kNPlates][kMaxNstrip] ={
137 {44.494, 43.725, 42.946, 42.156, 41.357, 40.548, 39.729, 38.899,
138 38.060, 37.211, 36.353, 35.484, 34.606, 33.719, 32.822, 31.916,
139 31.001, 30.077, 29.144, 28.202 },
141 {26.884, 25.922, 24.952, 23.975, 22.989, 22.320, 21.016, 20.309,
142 19.015, 18.270, 16.989, 16.205, 14.941, 14.117, 12.871, 12.008,
143 10.784, 9.8807, 8.681, 0.0 },
145 { 7.5835, 6.4124, 5.4058, 4.2809, 3.2448, 2.1424, 1.078, -0., -1.078,
146 -2.1424, -3.2448, -4.2809, -5.4058, -6.4124, -7.5835, 0.0, 0.0, 0.0,
149 {-8.681, -9.8807, -10.784, -12.008, -12.871, -14.117, -14.941, -16.205,
150 -16.989, -18.27, -19.015, -20.309, -21.016, -22.32, -22.989,
151 -23.975, -24.952, -25.922, -26.884, 0. },
153 {-28.202, -29.144, -30.077, -31.001, -31.916, -32.822, -33.719, -34.606,
154 -35.484, -36.353, -37.211, -38.06, -38.899, -39.729, -40.548,
155 -41.357, -42.156, -42.946, -43.725, -44.494 }};
160 Float_t const kheights[kNPlates][kMaxNstrip]= {
162 {-5.5, -5.5, -5.5, -5.5, -5.5, -5.5, -5.5, -5.5, -5.5, -5.5,
163 -5.5, -5.5, -5.5, -5.5, -5.5, -5.5, -5.5, -5.5, -5.5, -5.5 },
165 {-6.3, -7.1, -7.9, -8.7, -9.5, -3, -9.5, -3, -9.5, -3,
166 -9.5, -3.0, -9.5, -3.0, -9.5, -3, -9.5, -3, -9 , 0.},
168 { -3, -9, -4.5, -9, -4.5, -9, -4.5, -9, -4.5, -9,
169 -4.5, -9, -4.5, -9, -3, 0.0, 0.0, 0.0, 0.0, 0.0 },
171 { -9, -3, -9.5, -3, -9.5, -3, -9.5, -3, -9.5, -3, -9.5,
172 -3, -9.5, -3, -9.5, -8.7, -7.9, -7.1, -6.3, 0. },
174 {-5.5, -5.5, -5.5, -5.5, -5.5, -5.5, -5.5, -5.5, -5.5, -5.5,
175 -5.5, -5.5, -5.5, -5.5, -5.5, -5.5, -5.5, -5.5, -5.5, -5.5 }};
177 for (Int_t iplate = 0; iplate < kNPlates; iplate++) {
178 for (Int_t istrip = 0; istrip < kMaxNstrip; istrip++) {
179 fAngles[iplate][istrip] = kangles[iplate][istrip];
180 fHeights[iplate][istrip] = kheights[iplate][istrip];
186 //_____________________________________________________________________________
187 void AliTOFGeometry::GetPos(Int_t *det, Float_t *pos)
190 // Returns space point coor (x,y,z) (cm) for Detector
191 // Indices (iSect,iPlate,iStrip,iPadX,iPadZ)
199 //_____________________________________________________________________________
200 void AliTOFGeometry::GetDetID( Float_t *pos, Int_t *det)
203 // Returns Detector Indices (iSect,iPlate,iStrip,iPadX,iPadZ)
204 // space point coor (x,y,z) (cm)
207 det[0]=GetSector(pos);
208 det[1]=GetPlate(pos);
209 det[2]=GetStrip(pos);
214 //_____________________________________________________________________________