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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
75 virtual void ImportGeometry();
76 virtual void SetHoles(Bool_t holes) {fHoles = holes;};
77 virtual Bool_t GetHoles() const {return fHoles;};
78 virtual Float_t DistanceToPadPar(Int_t *det, Float_t *pos, Float_t *dist3d=0) const;
79 virtual Bool_t IsInsideThePadPar(Int_t *det, Float_t *pos) const;
80 virtual Bool_t IsInsideThePad(TGeoHMatrix mat, Float_t *pos, Float_t *dist3d=0) const;
81 virtual void GetVolumePath(Int_t *ind, Char_t *path );
82 virtual void GetVolumePath(Int_t sector, Char_t *path );
83 virtual void GetVolumePath(Int_t sector, Int_t plate, Int_t strip, Char_t *path );
84 virtual void GetPos(Int_t *det,Float_t *pos);
85 virtual void GetPosPar(Int_t *det,Float_t *pos) const;
86 virtual void GetDetID(Float_t *pos,Int_t *det) const;
87 virtual Int_t GetPlate(Float_t *pos) const;
88 virtual Int_t GetStrip(Float_t *pos) const;
89 virtual Int_t GetSector(Float_t *pos) const;
90 virtual Int_t GetPadX(Float_t *pos) const;
91 virtual Int_t GetPadZ(Float_t *pos) const;
92 virtual Float_t GetX(Int_t *det) const ;
93 virtual Float_t GetY(Int_t *det) const ;
94 virtual Float_t GetZ(Int_t *det) const ;
95 virtual void DetToStripRF(Int_t nPadX, Int_t nPadZ,
96 Float_t &x, Float_t &z) const;
97 virtual void DetToSectorRF(Int_t vol[5], Double_t ** coord);
98 virtual Float_t GetPadDx(Float_t *pos);
99 virtual Float_t GetPadDy(Float_t *pos);
100 virtual Float_t GetPadDz(Float_t *pos);
101 virtual void Translation(Float_t *xyz, Float_t translationVector[3]) const;
102 virtual void Rotation(Float_t *xyz, Double_t rotationAngles[6]) const;
103 virtual void InverseRotation(Float_t *xyz, Double_t rotationAngles[6]) const;
104
105 static Float_t GetAngles(Int_t iplate, Int_t istrip) {return fgkAngles[iplate][istrip];};
106 static Float_t GetHeights(Int_t iplate, Int_t istrip) {return fgkHeights[iplate][istrip];};
107 static Float_t GetDistances(Int_t iplate, Int_t istrip) {return fgkDistances[iplate][istrip];};
108
109 static Int_t GetIndex(Int_t *detId); // Get channel index from det Id (for calibration mainly)
110 static void GetVolumeIndices(Int_t index, Int_t *detId); // Get volume index from channel index
111
112 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
113 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
114 static Int_t GetStripNumberPerSM(Int_t iplate, Int_t istrip); // Get the serial number of the TOF strip in a TOF SM
115 void PadRF2TrackingRF(Float_t *ctrackPos, Float_t *differenceT);
116
117
118 private:
119
120 enum {
121 kNStripA = 15, // number of strips in A type module
122 kNStripB = 19, // number of strips in B type module
123 kNStripC = 19, // number of strips in C type module
124 kNpadX = 48, // Number of pads along X
125 kNpadZ = 2, // Number of pads along Z
126 kNSectors = 18, // Number of Sectors
127 kNPlates = 5, // Number of Plates
128 kMaxTOFTree = 5, // numer of geom. levels:
129 kMaxNstrip = 20 // Max. number of strips
130 };
131
132 // DAQ characteristics
133 // cfr. TOF-TDR pag. 105 for Glossary
134 // TARODA : TOF-ALICE Read Out and Data Acquisition system
135 enum {
136 kNDDL = 4, // Number of DDL (Detector Data Link) per sector
137 kNTRM = 12, // Number of TRM ( Readout Module) per DDL
138 kNTdc = 15, // Number of Tdc (Time to Digital Converter) per TRM
139 kNChain = 2, // Number of chains per TRM
140 kNCh = 8 // Number of channels per Tdc
141 };
142
143 static const Float_t fgkDeadTime; // Single channel dead time (ps)
144 static const Float_t fgkMatchingWindow; // Matching window (ps)
145
146 static const Float_t fgkZlenA; // length (cm) of the A module
147 static const Float_t fgkZlenB; // length (cm) of the B module
148 static const Float_t fgkZlenC; // length (cm) of the C module
149 static const Float_t fgkMaxhZtof; // Max half z-size of TOF (cm)
150
151 static const Float_t fgkRmin; // Inner radius of the TOF (cm)
152 static const Float_t fgkRmax; // Outer radius of the TOF (cm)
153 static const Float_t fgkxTOF; // Inner TOF Radius used in Reconstruction (cm)
154
155 static const Float_t fgkStripLength; // Strip Length (rho X phi direction) (cm)
156
157 static const Float_t fgkXPad; // Pad size in the x direction (cm)
158 static const Float_t fgkZPad; // Pad size in the z direction (cm)
159
160 static const Float_t fgkSigmaForTail1;//Sig1 for simulation of TDC tails
161 static const Float_t fgkSigmaForTail2;//Sig2 for simulation of TDC tails
162
163 static const Float_t fgkPhiSec; //sector Phi width (deg)
164
165 Bool_t fHoles; //logical for geometry version (w/wo holes)
166
167 static const Float_t fgkAngles[kNPlates][kMaxNstrip]; //Strip Tilt Angles
168 static const Float_t fgkHeights[kNPlates][kMaxNstrip]; //Strip heights
169 static const Float_t fgkDistances[kNPlates][kMaxNstrip];//Strip distances
170
171
172 static const Float_t fgkTdcBin; // time-of-flight bin width [ps]
173 static const Float_t fgkToTBin; // time-over-threshold bin width [ps]
174
175 ClassDef(AliTOFGeometry,8) // TOF Geometry base class
176};
177
178#endif