Line data Source code
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 :
20 0 : class AliTOFGeometry: public TObject{
21 :
22 : public:
23 : AliTOFGeometry();
24 : virtual ~AliTOFGeometry();
25 :
26 968 : static Int_t NStripA() { return kNStripA;};
27 1964 : static Int_t NStripB() { return kNStripB;};
28 2418 : static Int_t NStripC() { return kNStripC;};
29 : static Int_t NStrip(Int_t nPlate);
30 0 : static Int_t NMaxNstrip() { return kMaxNstrip;};
31 1260642 : static Int_t NpadX() { return kNpadX;};
32 2518156 : static Int_t NpadZ() { return kNpadZ;};
33 0 : static Int_t NpadXStrip() { return kNpadX*kNpadZ;};
34 22206 : static Int_t NSectors() { return kNSectors;};
35 164 : static Int_t NPlates() { return kNPlates;};
36 0 : static Int_t NStripXSector() { return (kNStripA + 2*kNStripB +
37 : 2*kNStripC);};
38 21888 : static Int_t NPadXSector() { return (kNStripA + 2*kNStripB +
39 : 2*kNStripC)*kNpadX*kNpadZ;};
40 :
41 69812 : static Float_t RinTOF() { return fgkxTOF;};
42 5222 : static Float_t Rmin() { return fgkRmin;};
43 2 : static Float_t Rmax() { return fgkRmax;};
44 :
45 4214 : static Float_t XPad() { return fgkXPad;};
46 3894 : static Float_t ZPad() { return fgkZPad;};
47 :
48 2 : static Float_t StripLength() { return fgkStripLength;};
49 :
50 20 : static Float_t DeadTime() { return fgkDeadTime;};
51 388 : static Float_t MatchingWindow() { return fgkMatchingWindow;};
52 :
53 0 : static Int_t MaxTOFTree() { return kMaxTOFTree;};
54 :
55 2529040 : static Int_t NDDL() { return kNDDL;};
56 576 : static Int_t NTRM() { return kNTRM;}
57 10944 : static Int_t NTdc() { return kNTdc;};
58 5472 : static Int_t NChain() { return kNChain;};
59 1415432 : static Int_t NCh() { return kNCh;};
60 0 : static Int_t NPadXTRM() { return kNCh*kNTdc*kNChain;};
61 :
62 2 : static Float_t ZlenA() { return fgkZlenA;};
63 0 : static Float_t ZlenB() { return fgkZlenB;};
64 0 : static Float_t ZlenC() { return fgkZlenC;};
65 0 : static Float_t MaxhZtof() { return fgkMaxhZtof;};
66 :
67 160 : static Float_t SigmaForTail1() { return fgkSigmaForTail1;};
68 160 : static Float_t SigmaForTail2() { return fgkSigmaForTail2;};
69 :
70 67956 : static Double_t GetAlpha() { return 2 * 3.14159265358979323846 / kNSectors; };
71 :
72 3956 : static Float_t TdcBinWidth() {return fgkTdcBin;};
73 1358 : static Float_t ToTBinWidth() {return fgkToTBin;};
74 1200 : static Float_t BunchCrossingBinWidth() {return fgkBunchCrossingBin;};
75 :
76 1200 : static Float_t SlewTOTMin() {return fgkSlewTOTMin;};
77 600 : static Float_t SlewTOTMax() {return fgkSlewTOTMax;};
78 :
79 : virtual void ImportGeometry();
80 1 : virtual void SetHoles(Bool_t holes) {fgHoles = holes;};
81 0 : static Bool_t GetHoles() {return fgHoles;};
82 : static Float_t DistanceToPadPar(Int_t *det, const Float_t * pos, Float_t *dist3d=0);
83 : static Bool_t IsInsideThePadPar(Int_t *det, const Float_t * pos);
84 : static Bool_t IsInsideThePad(TGeoHMatrix *mat, const Float_t * pos, Float_t *dist3d=0);
85 : static void GetVolumePath(const Int_t * ind, Char_t *path );
86 : static void GetVolumePath(Int_t sector, Char_t *path );
87 : static void GetVolumePath(Int_t sector, Int_t plate, Int_t strip, Char_t *path );
88 : static void GetPos(Int_t *det,Float_t *pos);
89 : static void GetPosPar(Int_t *det,Float_t *pos);
90 : static void GetDetID(Float_t *pos,Int_t *det);
91 : static Int_t GetPlate(const Float_t * pos);
92 : static Int_t GetStrip(const Float_t * pos);
93 : static Int_t GetSector(const Float_t * pos);
94 : static Int_t GetPadX(const Float_t * pos);
95 : static Int_t GetPadZ(const Float_t * pos);
96 : static Float_t GetX(const Int_t * det);
97 : static Float_t GetY(const Int_t * det);
98 : static Float_t GetZ(const Int_t * det);
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 : static Float_t GetPadDx(const Float_t * pos);
103 : static Float_t GetPadDy(const Float_t * pos);
104 : static Float_t GetPadDz(const Float_t * pos);
105 : static void Translation(Float_t *xyz, Float_t translationVector[3]);
106 : static void Rotation(Float_t *xyz, Double_t rotationAngles[6]);
107 : static void InverseRotation(Float_t *xyz, Double_t rotationAngles[6]);
108 :
109 7776 : static Float_t GetAngles(Int_t iplate, Int_t istrip) {return fgkAngles[iplate][istrip];};
110 2582 : static Float_t GetHeights(Int_t iplate, Int_t istrip) {return fgkHeights[iplate][istrip];};
111 2582 : static Float_t GetDistances(Int_t iplate, Int_t istrip) {return fgkDistances[iplate][istrip];};
112 :
113 : static Int_t GetIndex(const Int_t * 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 : static UShort_t GetAliSensVolIndex(Int_t sec, Int_t pla, Int_t str); // 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(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 : static Bool_t fgHoles; //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 70 : ClassDef(AliTOFGeometry,9) // TOF Geometry base class
186 : };
187 :
188 : #endif
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