Line data Source code
1 : #ifndef ALITRDGEOMETRY_H
2 : #define ALITRDGEOMETRY_H
3 : /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 : * See cxx source for full Copyright notice */
5 :
6 : /* $Id$ */
7 :
8 : ///////////////////////////////////////////////////////////////////////////////
9 : // //
10 : // TRD geometry class //
11 : // //
12 : ///////////////////////////////////////////////////////////////////////////////
13 :
14 : #include "AliGeometry.h"
15 :
16 : class TGeoHMatrix;
17 :
18 : class AliTRDpadPlane;
19 :
20 : class AliTRDgeometry : public AliGeometry {
21 :
22 : public:
23 :
24 : enum { kNlayer = 6
25 : , kNstack = 5
26 : , kNsector = 18
27 : , kNdet = 540
28 : , kNdets = 30 };
29 :
30 : AliTRDgeometry();
31 : virtual ~AliTRDgeometry();
32 :
33 : virtual void CreateGeometry(Int_t *idtmed);
34 2 : virtual Int_t IsVersion() { return 1; }
35 0 : virtual Bool_t Impact(const TParticle* ) const { return kTRUE; }
36 : virtual Bool_t IsHole(Int_t la, Int_t st, Int_t se) const;
37 : virtual Bool_t IsOnBoundary(Int_t det, Float_t y, Float_t z, Float_t eps = 0.5) const;
38 : virtual Bool_t RotateBack(Int_t det, const Double_t * const loc, Double_t *glb) const;
39 :
40 : Bool_t ChamberInGeometry(Int_t det);
41 :
42 : void AssembleChamber(Int_t ilayer, Int_t istack);
43 : void CreateFrame(Int_t *idtmed);
44 : void CreateServices(Int_t *idtmed);
45 :
46 : static Bool_t CreateClusterMatrixArray();
47 : static TGeoHMatrix *GetClusterMatrix(Int_t det);
48 :
49 22 : void SetSMstatus(Int_t sm, Char_t status) { fgSMstatus[sm] = status; }
50 :
51 : static Int_t GetDetectorSec(Int_t layer, Int_t stack);
52 : static Int_t GetDetector(Int_t layer, Int_t stack, Int_t sector);
53 : static Int_t GetLayer(Int_t det);
54 : static Int_t GetStack(Int_t det);
55 : Int_t GetStack(Double_t z, Int_t layer);
56 : static Int_t GetSector(Int_t det);
57 :
58 : static void CreatePadPlaneArray();
59 : static AliTRDpadPlane *CreatePadPlane(Int_t layer, Int_t stack);
60 : static AliTRDpadPlane *GetPadPlane(Int_t layer, Int_t stack);
61 4638 : static AliTRDpadPlane *GetPadPlane(Int_t det) { return GetPadPlane(GetLayer(det)
62 1546 : ,GetStack(det)); }
63 : static Int_t GetRowMax(Int_t layer, Int_t stack, Int_t /*sector*/);
64 : static Int_t GetColMax(Int_t layer);
65 : static Double_t GetRow0(Int_t layer, Int_t stack, Int_t /*sector*/);
66 : static Double_t GetCol0(Int_t layer);
67 :
68 1052 : static Float_t GetTime0(Int_t layer) { return fgkTime0[layer]; }
69 :
70 536 : static Double_t GetXtrdBeg() { return fgkXtrdBeg; }
71 0 : static Double_t GetXtrdEnd() { return fgkXtrdEnd; }
72 :
73 1360 : Char_t GetSMstatus(Int_t sm) const { return fgSMstatus[sm]; }
74 60 : static Float_t GetChamberWidth(Int_t layer) { return fgkCwidth[layer] ; }
75 5228 : static Float_t GetChamberLength(Int_t layer, Int_t stack) { return fgkClength[layer][stack]; }
76 :
77 0 : virtual void GetGlobal(const AliRecPoint*, TVector3&, TMatrixF& ) const { };
78 0 : virtual void GetGlobal(const AliRecPoint*, TVector3& ) const { };
79 :
80 12721 : static Double_t GetAlpha() { return 2.0
81 : * 3.14159265358979324
82 25442 : / fgkNsector; }
83 :
84 310 : static Int_t Nsector() { return fgkNsector; }
85 460908 : static Int_t Nlayer() { return fgkNlayer; }
86 457356 : static Int_t Nstack() { return fgkNstack; }
87 4416 : static Int_t Ndet() { return fgkNdet; }
88 :
89 316 : static Float_t Cheight() { return fgkCH; }
90 0 : static Float_t CheightSV() { return fgkCHsv; }
91 316 : static Float_t Cspace() { return fgkVspace; }
92 0 : static Float_t CraHght() { return fgkCraH; }
93 36308 : static Float_t CdrHght() { return fgkCdrH; }
94 36764 : static Float_t CamHght() { return fgkCamH; }
95 0 : static Float_t CroHght() { return fgkCroH; }
96 0 : static Float_t CsvHght() { return fgkCsvH; }
97 0 : static Float_t CroWid() { return fgkCroW; }
98 :
99 48762 : static Float_t AnodePos() { return fgkAnodePos; }
100 :
101 40 : static Float_t MyThick() { return fgkRMyThick; }
102 1062 : static Float_t DrThick() { return fgkDrThick; }
103 1150870 : static Float_t AmThick() { return fgkAmThick; }
104 0 : static Float_t DrZpos() { return fgkDrZpos; }
105 0 : static Float_t RpadW() { return fgkRpadW; }
106 0 : static Float_t CpadW() { return fgkCpadW; }
107 :
108 0 : static Float_t Cwidcha() { return (fgkSwidth2 - fgkSwidth1)
109 0 : / fgkSheight
110 0 : * (fgkCH + fgkVspace); }
111 :
112 44208 : static Int_t MCMmax() { return fgkMCMmax; }
113 0 : static Int_t MCMrow() { return fgkMCMrow; }
114 0 : static Int_t ROBmaxC0() { return fgkROBmaxC0; }
115 8 : static Int_t ROBmaxC1() { return fgkROBmaxC1; }
116 8 : static Int_t ADCmax() { return fgkADCmax; }
117 8 : static Int_t TBmax() { return fgkTBmax; }
118 0 : static Int_t Padmax() { return fgkPadmax; }
119 0 : static Int_t Colmax() { return fgkColmax; }
120 0 : static Int_t RowmaxC0() { return fgkRowmaxC0; }
121 0 : static Int_t RowmaxC1() { return fgkRowmaxC1; }
122 :
123 : protected:
124 :
125 : static const Int_t fgkNsector; // Number of sectors in the full detector (18)
126 : static const Int_t fgkNlayer; // Number of layers of the TRD (6)
127 : static const Int_t fgkNstack; // Number of stacks in z-direction (5)
128 : static const Int_t fgkNdet; // Total number of detectors (18 * 6 * 5 = 540)
129 :
130 : static const Float_t fgkTlength; // Length of the TRD-volume in spaceframe (BTRD)
131 :
132 : static const Float_t fgkSheight; // Height of the supermodule
133 : static const Float_t fgkSwidth1; // Lower width of the supermodule
134 : static const Float_t fgkSwidth2; // Upper width of the supermodule
135 : static const Float_t fgkSlength; // Length of the supermodule
136 :
137 : static const Float_t fgkFlength; // Length of the service space in front of a supermodule
138 :
139 : static const Float_t fgkSMpltT; // Thickness of the super module side plates
140 :
141 : static const Float_t fgkCraH; // Height of the radiator part of the chambers
142 : static const Float_t fgkCdrH; // Height of the drift region of the chambers
143 : static const Float_t fgkCamH; // Height of the amplification region of the chambers
144 : static const Float_t fgkCroH; // Height of the readout of the chambers
145 : static const Float_t fgkCsvH; // Height of the services on top of the chambers
146 : static const Float_t fgkCH; // Total height of the chambers (w/o services)
147 : static const Float_t fgkCHsv; // Total height of the chambers (with services)
148 :
149 : static const Float_t fgkAnodePos; // Distance of anode wire plane relative to alignabl volume
150 :
151 : static const Float_t fgkVspace; // Vertical spacing of the chambers
152 : static const Float_t fgkHspace; // Horizontal spacing of the chambers
153 : static const Float_t fgkVrocsm; // Radial distance of the first ROC to the outer SM plates
154 :
155 : static const Float_t fgkCalT; // Thickness of the lower aluminum frame
156 : static const Float_t fgkCalW; // Width of additional aluminum ledge on lower frame
157 : static const Float_t fgkCalH; // Height of additional aluminum ledge on lower frame
158 : static const Float_t fgkCalWmod; // Width of additional aluminum ledge on lower frame
159 : static const Float_t fgkCalHmod; // Height of additional aluminum ledge on lower frame
160 : static const Float_t fgkCwsW; // Width of additional wacosit ledge on lower frame
161 : static const Float_t fgkCwsH; // Height of additional wacosit ledge on lower frame
162 : static const Float_t fgkCclsT; // Thickness of the lower Wacosit frame sides
163 : static const Float_t fgkCclfT; // Thickness of the lower Wacosit frame front
164 : static const Float_t fgkCglT; // Thichness of the glue around the radiator
165 : static const Float_t fgkCcuTa; // Thickness of the upper Wacosit frame around amp. region
166 : static const Float_t fgkCcuTb; // Thickness of the upper Wacosit frame around amp. region
167 : static const Float_t fgkCauT; // Thickness of the aluminum frame of the back panel
168 : static const Float_t fgkCroW; // Additional width of the readout chamber frames
169 :
170 : static const Float_t fgkCpadW; // Difference of outer chamber width and pad plane width
171 : static const Float_t fgkRpadW; // Difference of outer chamber width and pad plane width
172 :
173 : static const Float_t fgkXeThick; // Thickness of the gas volume
174 : static const Float_t fgkDrThick; // Thickness of the drift region
175 : static const Float_t fgkAmThick; // Thickness of the amplification region
176 : static const Float_t fgkWrThick; // Thickness of the wire planes
177 :
178 : static const Float_t fgkPPdThick; // Thickness of copper of the pad plane
179 : static const Float_t fgkPPpThick; // Thickness of PCB board of the pad plane
180 : static const Float_t fgkPGlThick; // Thickness of the glue layer
181 : static const Float_t fgkPCbThick; // Thickness of the carbon layers
182 : static const Float_t fgkPHcThick; // Thickness of the honeycomb support structure
183 : static const Float_t fgkPPcThick; // Thickness of the PCB readout boards
184 : static const Float_t fgkPRbThick; // Thickness of the PCB copper layers
185 : static const Float_t fgkPElThick; // Thickness of all other electronics components (caps, etc.)
186 :
187 : static const Float_t fgkRFbThick; // Thickness of the fiber layers in the radiator
188 : static const Float_t fgkRRhThick; // Thickness of the rohacell layers in the radiator
189 : static const Float_t fgkRGlThick; // Thickness of the glue layers in the radiator
190 : static const Float_t fgkRCbThick; // Thickness of the carbon layers in the radiator
191 : static const Float_t fgkRMyThick; // Thickness of the mylar layers in the radiator
192 :
193 : static const Float_t fgkDrZpos; // Position of the drift region
194 : static const Float_t fgkAmZpos; // Position of the amplification region
195 : static const Float_t fgkWrZposA; // Position of the wire planes
196 : static const Float_t fgkWrZposB; // Position of the wire planes
197 : static const Float_t fgkCalZpos; // Position of the additional aluminum ledges
198 :
199 : static const Int_t fgkMCMmax; // Maximum number of MCMs per ROB
200 : static const Int_t fgkMCMrow; // Maximum number of MCMs per ROB Row
201 : static const Int_t fgkROBmaxC0; // Maximum number of ROBs per C0 chamber
202 : static const Int_t fgkROBmaxC1; // Maximum number of ROBs per C1 chamber
203 : static const Int_t fgkADCmax; // Maximum number of ADC channels per MCM
204 : static const Int_t fgkTBmax; // Maximum number of Time bins
205 : static const Int_t fgkPadmax; // Maximum number of pads per MCM
206 : static const Int_t fgkColmax; // Maximum number of pads per padplane row
207 : static const Int_t fgkRowmaxC0; // Maximum number of Rows per C0 chamber
208 : static const Int_t fgkRowmaxC1; // Maximum number of Rows per C1 chamber
209 :
210 : static const Float_t fgkCwidth[kNlayer]; // Outer widths of the chambers
211 : static const Float_t fgkClength[kNlayer][kNstack]; // Outer lengths of the chambers
212 :
213 : static const Double_t fgkTime0Base; // Base value for calculation of Time-position of pad 0
214 : static const Float_t fgkTime0[kNlayer]; // Time-position of pad 0
215 :
216 : static const Double_t fgkXtrdBeg; // X-coordinate in tracking system of begin of TRD mother volume
217 : static const Double_t fgkXtrdEnd; // X-coordinate in tracking system of end of TRD mother volume
218 :
219 : static TObjArray *fgClusterMatrixArray; //! Transformation matrices loc. cluster to tracking cs
220 : static TObjArray *fgPadPlaneArray; //! Array of pad plane objects
221 :
222 : static Char_t fgSMstatus[kNsector]; // Super module status byte
223 :
224 : private:
225 :
226 : AliTRDgeometry(const AliTRDgeometry &g); // Not implemented
227 : AliTRDgeometry &operator=(const AliTRDgeometry &g); // Not implemented
228 :
229 88 : ClassDef(AliTRDgeometry,25) // TRD geometry class
230 :
231 : };
232 : #endif
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