1 #ifndef ALITOFGEOMETRY_H
2 #define ALITOFGEOMETRY_H
3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
8 ///////////////////////////////////////////////////////////////////////////////
10 // TOF geometry class //
12 ///////////////////////////////////////////////////////////////////////////////
17 class AliTOFGeometry: public TObject{
21 virtual ~AliTOFGeometry();
23 static Int_t NStripA() { return kNStripA;};
24 static Int_t NStripB() { return kNStripB;};
25 virtual Int_t NStripC() { return kNStripC;};
26 virtual Int_t NMaxNstrip() { return kMaxNstrip;};
27 static Int_t NpadX() { return kNpadX;};
28 static Int_t NpadZ() { return kNpadZ;};
29 static Int_t NpadXStrip() { return kNpadX*kNpadZ;};
30 static Int_t NSectors() { return kNSectors;};
31 static Int_t NPlates() { return kNPlates;};
32 virtual Int_t NPadXSector() { return (kNStripA + 2*kNStripB +
33 2*kNStripC)*kNpadX*kNpadZ;};
35 virtual Float_t RinTOF() { return fgkxTOF;};
36 virtual Float_t Rmin() { return fgkRmin;};
37 virtual Float_t Rmax() { return fgkRmax;};
39 static Float_t XPad() { return fgkXPad;};
40 static Float_t ZPad() { return fgkZPad;};
42 static Int_t TimeDiff() { return fgkTimeDiff;};
43 static Int_t MaxTOFTree() { return kMaxTOFTree;};
45 static Int_t NDDL() { return kNDDL;};
46 static Int_t NTRM() { return kNTRM;}
47 static Int_t NTdc() { return kNTdc;};
48 static Int_t NCh() { return kNCh;};
49 static Int_t NPadXTRM() { return kNCh*kNTdc;};
51 virtual Float_t ZlenA() { return kZlenA;};
52 virtual Float_t ZlenB() { return kZlenB;};
53 virtual Float_t ZlenC() { return kZlenC;};
54 virtual Float_t MaxhZtof() { return kMaxhZtof;};
55 virtual Float_t StripLength() { return kStripLength;};
57 static Float_t SigmaForTail1() { return fgkSigmaForTail1;};
58 static Float_t SigmaForTail2() { return fgkSigmaForTail2;};
60 static Double_t GetAlpha() { return 2 * 3.14159265358979323846 / kNSectors; };
62 static Float_t TdcBinWidth() {return fgkTdcBin;};
66 virtual void SetHoles(Bool_t holes) {fHoles = holes;};
67 virtual Bool_t GetHoles() const {return fHoles;};
69 virtual Bool_t IsInsideThePad(Int_t */*det*/, Float_t */*pos*/) {return kFALSE;};
70 virtual Float_t DistanceToPad(Int_t */*det*/, Float_t */*pos*/, Float_t *dist3d=0) {return dist3d[0];};
71 virtual void GetPos(Int_t */*det*/,Float_t */*pos*/);
72 virtual void GetDetID(Float_t */*pos*/,Int_t */*det*/);
73 virtual Int_t GetPlate(Float_t */*pos*/) {return -1;};
74 virtual Int_t GetStrip(Float_t */*pos*/) {return -1;};
75 virtual Int_t GetSector(Float_t */*pos*/) {return -1;};
76 virtual Int_t GetPadX(Float_t */*pos*/) {return -1;};
77 virtual Int_t GetPadZ(Float_t */*pos*/) {return -1;};
78 virtual Float_t GetX(Int_t */*det*/) {return -500.;};
79 virtual Float_t GetY(Int_t */*det*/) {return -500.;};
80 virtual Float_t GetZ(Int_t */*det*/) {return -500.;};
82 Float_t GetAngles(Int_t iplate, Int_t istrip) const {return fAngles[iplate][istrip];};
83 Float_t GetHeights(Int_t iplate, Int_t istrip) const {return fHeights[iplate][istrip];};
84 Float_t GetDistances(Int_t iplate, Int_t istrip) const {return fDistances[iplate][istrip];};
90 kNStripA = 15, // number of strips in A type module
91 kNStripB = 19, // number of strips in B type module
92 kNpadX = 48, // Number of pads along X
93 kNpadZ = 2, // Number of pads along Z
94 kNSectors = 18, // Number of Sectors
95 kNPlates = 5, // Number of Plates
96 kMaxTOFTree = 5 // numer of geom. levels:
99 // DAQ characteristics
100 // cfr. TOF-TDR pag. 105 for Glossary
101 // TARODA : TOF-ALICE Read Out and Data Acquisition system
103 kNDDL = 4, // Number of DDL (Detector Data Link) per sector
104 kNTRM = 10, // Number of TRM ( Readout Module) per DDL
105 kNTdc = 30, // Number of Tdc (Time to Digital Converter) per TRM
106 kNCh = 8 // Number of channels per Tdc
109 static const Int_t fgkTimeDiff; // Min signal separation (ps)
111 mutable Int_t kNStripC; // number of strips in C type module
112 mutable Int_t kMaxNstrip; // Max. number of strips
114 mutable Float_t kZlenA; // length (cm) of the A module
115 mutable Float_t kZlenB; // length (cm) of the B module
116 mutable Float_t kZlenC; // length (cm) of the C module
117 mutable Float_t kMaxhZtof; // Max half z-size of TOF (cm)
118 mutable Float_t kStripLength; // Strip Length (rho X phi direction) (cm)
120 mutable Float_t fgkRmin; // Inner radius of the TOF (cm)
121 mutable Float_t fgkRmax; // Outer radius of the TOF (cm)
122 mutable Float_t fgkxTOF; // Inner TOF Radius used in Reconstruction (cm)
124 static const Float_t fgkXPad; // Pad size in the x direction (cm)
125 static const Float_t fgkZPad; // Pad size in the z direction (cm)
127 static const Float_t fgkSigmaForTail1;//Sig1 for simulation of TDC tails
128 static const Float_t fgkSigmaForTail2;//Sig2 for simulation of TDC tails
130 Bool_t fHoles; //logical for geometry version (w/wo holes)
132 Float_t *fAngles[kNPlates]; //Strip Tilt Angles
133 Float_t *fHeights[kNPlates];//Strip heights
134 Float_t *fDistances[kNPlates];//Strip distances
136 Float_t fPhiSec; //sector Phi width (deg)
138 static const Float_t fgkTdcBin; // time-window for the TDC bins [ps]
140 ClassDef(AliTOFGeometry,2) // TOF Geometry base class