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1#ifndef ALITOFGEOMETRY_H
2#define ALITOFGEOMETRY_H
3
4/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
5 * See cxx source for full Copyright notice */
6
7/* $Id$ */
8
9///////////////////////////////////////////////////////////////////////////////
10// //
11// TOF geometry class //
12// //
13///////////////////////////////////////////////////////////////////////////////
14
15#include "TGeoMatrix.h"
16#include "TObject.h"
17
18//class TGeoMatrix;
19
20class AliTOFGeometry: public TObject{
21
22 public:
23 AliTOFGeometry();
24 virtual ~AliTOFGeometry();
25
26 static Int_t NStripA() { return kNStripA;};
27 static Int_t NStripB() { return kNStripB;};
28 static Int_t NStripC() { return kNStripC;};
29 static Int_t NStrip(Int_t nPlate);
30 static Int_t NMaxNstrip() { return kMaxNstrip;};
31 static Int_t NpadX() { return kNpadX;};
32 static Int_t NpadZ() { return kNpadZ;};
33 static Int_t NpadXStrip() { return kNpadX*kNpadZ;};
34 static Int_t NSectors() { return kNSectors;};
35 static Int_t NPlates() { return kNPlates;};
36 static Int_t NStripXSector() { return (kNStripA + 2*kNStripB +
37 2*kNStripC);};
38 static Int_t NPadXSector() { return (kNStripA + 2*kNStripB +
39 2*kNStripC)*kNpadX*kNpadZ;};
40
41 static Float_t RinTOF() { return fgkxTOF;};
42 static Float_t Rmin() { return fgkRmin;};
43 static Float_t Rmax() { return fgkRmax;};
44
45 static Float_t XPad() { return fgkXPad;};
46 static Float_t ZPad() { return fgkZPad;};
47
48 static Float_t StripLength() { return fgkStripLength;};
49
50 static Float_t DeadTime() { return fgkDeadTime;};
51 static Float_t MatchingWindow() { return fgkMatchingWindow;};
52
53 static Int_t MaxTOFTree() { return kMaxTOFTree;};
54
55 static Int_t NDDL() { return kNDDL;};
56 static Int_t NTRM() { return kNTRM;}
57 static Int_t NTdc() { return kNTdc;};
58 static Int_t NChain() { return kNChain;};
59 static Int_t NCh() { return kNCh;};
60 static Int_t NPadXTRM() { return kNCh*kNTdc*kNChain;};
61
62 static Float_t ZlenA() { return fgkZlenA;};
63 static Float_t ZlenB() { return fgkZlenB;};
64 static Float_t ZlenC() { return fgkZlenC;};
65 static Float_t MaxhZtof() { return fgkMaxhZtof;};
66
67 static Float_t SigmaForTail1() { return fgkSigmaForTail1;};
68 static Float_t SigmaForTail2() { return fgkSigmaForTail2;};
69
70 static Double_t GetAlpha() { return 2 * 3.14159265358979323846 / kNSectors; };
71
72 static Float_t TdcBinWidth() {return fgkTdcBin;};
73 static Float_t ToTBinWidth() {return fgkToTBin;};
74 static Float_t BunchCrossingBinWidth() {return fgkBunchCrossingBin;};
75
76 static Float_t SlewTOTMin() {return fgkSlewTOTMin;};
77 static Float_t SlewTOTMax() {return fgkSlewTOTMax;};
78
79 virtual void ImportGeometry();
80 virtual void SetHoles(Bool_t holes) {fHoles = holes;};
81 virtual Bool_t GetHoles() const {return fHoles;};
82 virtual Float_t DistanceToPadPar(Int_t *det, const Float_t * const pos, Float_t *dist3d=0) const;
83 virtual Bool_t IsInsideThePadPar(Int_t *det, const Float_t * const pos) const;
84 virtual Bool_t IsInsideThePad(TGeoHMatrix *mat, const Float_t * const pos, Float_t *dist3d=0) const;
85 virtual void GetVolumePath(const Int_t * const ind, Char_t *path );
86 virtual void GetVolumePath(Int_t sector, Char_t *path );
87 virtual void GetVolumePath(Int_t sector, Int_t plate, Int_t strip, Char_t *path );
88 virtual void GetPos(Int_t *det,Float_t *pos);
89 virtual void GetPosPar(Int_t *det,Float_t *pos) const;
90 virtual void GetDetID(Float_t *pos,Int_t *det) const;
91 virtual Int_t GetPlate(const Float_t * const pos) const;
92 virtual Int_t GetStrip(const Float_t * const pos) const;
93 virtual Int_t GetSector(const Float_t * const pos) const;
94 virtual Int_t GetPadX(const Float_t * const pos) const;
95 virtual Int_t GetPadZ(const Float_t * const pos) const;
96 virtual Float_t GetX(const Int_t * const det) const ;
97 virtual Float_t GetY(const Int_t * const det) const ;
98 virtual Float_t GetZ(const Int_t * const det) const ;
99 virtual void DetToStripRF(Int_t nPadX, Int_t nPadZ,
100 Float_t &x, Float_t &z) const;
101 virtual void DetToSectorRF(Int_t vol[5], Double_t coord[4][3]);
102 virtual Float_t GetPadDx(const Float_t * const pos);
103 virtual Float_t GetPadDy(const Float_t * const pos);
104 virtual Float_t GetPadDz(const Float_t * const pos);
105 virtual void Translation(Float_t *xyz, Float_t translationVector[3]) const;
106 virtual void Rotation(Float_t *xyz, Double_t rotationAngles[6]) const;
107 virtual void InverseRotation(Float_t *xyz, Double_t rotationAngles[6]) const;
108
109 static Float_t GetAngles(Int_t iplate, Int_t istrip) {return fgkAngles[iplate][istrip];};
110 static Float_t GetHeights(Int_t iplate, Int_t istrip) {return fgkHeights[iplate][istrip];};
111 static Float_t GetDistances(Int_t iplate, Int_t istrip) {return fgkDistances[iplate][istrip];};
112
113 static Int_t GetIndex(const Int_t * const detId); // Get channel index from det Id (for calibration mainly)
114 static void GetVolumeIndices(Int_t index, Int_t *detId); // Get volume index from channel index
115
116 UShort_t GetAliSensVolIndex(Int_t sec, Int_t pla, Int_t str) const; // Get the index of the TOF alignable volume in the AliGeomManager order
117 static Int_t GetStripNumber(Int_t isector, Int_t iplate, Int_t istrip); // Get the serial number of the TOF alignable volume, i.e. the TOF strip
118 static Int_t GetStripNumberPerSM(Int_t iplate, Int_t istrip); // Get the serial number of the TOF strip in a TOF SM
119 static void GetStripAndModule(Int_t iStripPerSM, Int_t &iplate, Int_t &istrip); // Return the module and strip per module corresponding to the strip number per SM
120 void PadRF2TrackingRF(Float_t *ctrackPos, Float_t *differenceT); // Convert the track coordinates from pad RF to tracking RF
121
122 static Int_t GetTOFsupermodule(const Int_t index); // Return the TOF supermodule where TOF channel index is located
123
124 private:
125
126 enum {
127 kNStripA = 15, // number of strips in A type module
128 kNStripB = 19, // number of strips in B type module
129 kNStripC = 19, // number of strips in C type module
130 kNpadX = 48, // Number of pads along X
131 kNpadZ = 2, // Number of pads along Z
132 kNSectors = 18, // Number of Sectors
133 kNPlates = 5, // Number of Plates
134 kMaxTOFTree = 5, // numer of geom. levels:
135 kMaxNstrip = 20 // Max. number of strips
136 };
137
138 // DAQ characteristics
139 // cfr. TOF-TDR pag. 105 for Glossary
140 // TARODA : TOF-ALICE Read Out and Data Acquisition system
141 enum {
142 kNDDL = 4, // Number of DDL (Detector Data Link) per sector
143 kNTRM = 12, // Number of TRM ( Readout Module) per DDL
144 kNTdc = 15, // Number of Tdc (Time to Digital Converter) per TRM
145 kNChain = 2, // Number of chains per TRM
146 kNCh = 8 // Number of channels per Tdc
147 };
148
149 static const Float_t fgkDeadTime; // Single channel dead time (ps)
150 static const Float_t fgkMatchingWindow; // Matching window (ps)
151
152 static const Float_t fgkZlenA; // length (cm) of the A module
153 static const Float_t fgkZlenB; // length (cm) of the B module
154 static const Float_t fgkZlenC; // length (cm) of the C module
155 static const Float_t fgkMaxhZtof; // Max half z-size of TOF (cm)
156
157 static const Float_t fgkRmin; // Inner radius of the TOF (cm)
158 static const Float_t fgkRmax; // Outer radius of the TOF (cm)
159 static const Float_t fgkxTOF; // Inner TOF Radius used in Reconstruction (cm)
160
161 static const Float_t fgkStripLength; // Strip Length (rho X phi direction) (cm)
162
163 static const Float_t fgkXPad; // Pad size in the x direction (cm)
164 static const Float_t fgkZPad; // Pad size in the z direction (cm)
165
166 static const Float_t fgkSigmaForTail1;//Sig1 for simulation of TDC tails
167 static const Float_t fgkSigmaForTail2;//Sig2 for simulation of TDC tails
168
169 static const Float_t fgkPhiSec; //sector Phi width (deg)
170
171 Bool_t fHoles; //logical for geometry version (w/wo holes)
172
173 static const Float_t fgkAngles[kNPlates][kMaxNstrip]; //Strip Tilt Angles
174 static const Float_t fgkHeights[kNPlates][kMaxNstrip]; //Strip heights
175 static const Float_t fgkDistances[kNPlates][kMaxNstrip];//Strip distances
176
177
178 static const Float_t fgkTdcBin; // time-of-flight bin width [ps]
179 static const Float_t fgkToTBin; // time-over-threshold bin width [ps]
180 static const Float_t fgkBunchCrossingBin; // bunch-crossing bin width [ps]
181
182 static const Float_t fgkSlewTOTMin; // min TOT for slewing correction [ns]
183 static const Float_t fgkSlewTOTMax; // max TOT for slewing correction [ns]
184
185 ClassDef(AliTOFGeometry,8) // TOF Geometry base class
186};
187
188#endif