Line data Source code
1 :
2 : /**************************************************************************
3 : * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 : * *
5 : * Author: The ALICE Off-line Project. *
6 : * Contributors are mentioned in the code where appropriate. *
7 : * *
8 : * Permission to use, copy, modify and distribute this software and its *
9 : * documentation strictly for non-commercial purposes is hereby granted *
10 : * without fee, provided that the above copyright notice appears in all *
11 : * copies and that both the copyright notice and this permission notice *
12 : * appear in the supporting documentation. The authors make no claims *
13 : * about the suitability of this software for any purpose. It is *
14 : * provided "as is" without express or implied warranty. *
15 : **************************************************************************/
16 :
17 : //-------------------------------------------------------------------------
18 : // Flex class for ALICE MFT upgrade
19 : // This version uses TGeo
20 : // Authors:
21 : // F. Manso
22 : // march 2016: main implementaion of the class
23 : //-------------------------------------------------------------------------
24 :
25 : #include "TGeoManager.h"
26 : #include "TGeoVolume.h"
27 : #include "TGeoTrd2.h"
28 : #include "TGeoMatrix.h"
29 : #include "TGeoBBox.h"
30 : #include "TGeoTube.h"
31 : #include "AliLog.h"
32 : #include "AliMFTLadderSegmentation.h"
33 : #include "AliMFTChipSegmentation.h"
34 : #include "AliMFTFlex.h"
35 : #include "AliMFTChip.h"
36 : #include "AliMFTLadder.h"
37 : #include "AliMFTGeometry.h"
38 : #include "AliMFTPlane.h"
39 : #include "TGeoCompositeShape.h"
40 : #include "TGeoBoolNode.h"
41 :
42 14 : ClassImp(AliMFTFlex)
43 :
44 : AliMFTFlex::AliMFTFlex():
45 0 : TNamed(),
46 0 : fLadderSeg(NULL)
47 0 : {
48 : // Constructor
49 0 : }
50 :
51 0 : AliMFTFlex::~AliMFTFlex() {
52 0 : }
53 :
54 : AliMFTFlex::AliMFTFlex(AliMFTLadderSegmentation *ladder):
55 0 : TNamed(),
56 0 : fLadderSeg(ladder)
57 0 : {
58 : // Constructor
59 0 : }
60 :
61 :
62 : TGeoVolumeAssembly* AliMFTFlex::MakeFlex(Int_t nbsensors, Double_t length)
63 : {
64 : // Informations from the technical report mft_flex_proto_5chip_v08_laz50p.docx on MFT twiki and private communications
65 :
66 : // For the naming
67 0 : AliMFTGeometry * mftGeom = AliMFTGeometry::Instance();
68 0 : Int_t idHalfMFT = mftGeom->GetHalfMFTID(fLadderSeg->GetUniqueID());
69 0 : Int_t idHalfDisk = mftGeom->GetHalfDiskID(fLadderSeg->GetUniqueID());
70 0 : Int_t idLadder = mftGeom->GetLadderID(fLadderSeg->GetUniqueID());
71 :
72 : // First a global pointer for the flex
73 0 : TGeoMedium *kMedAir = gGeoManager->GetMedium("MFT_Air$");
74 0 : TGeoVolumeAssembly* flex = new TGeoVolumeAssembly(Form("flex_%d_%d_%d",idHalfMFT,idHalfDisk,idLadder));
75 :
76 : // Defining one single layer for the strips and the AVDD and DVDD
77 0 : TGeoVolume* lines = Make_Lines(nbsensors,length-AliMFTGeometry::kClearance, AliMFTGeometry::kFlexHeight - AliMFTGeometry::kClearance, AliMFTGeometry::kAluThickness);
78 :
79 : // AGND and DGND layers
80 0 : TGeoVolume* agnd_dgnd = Make_AGND_DGND(length-AliMFTGeometry::kClearance, AliMFTGeometry::kFlexHeight-AliMFTGeometry::kClearance, AliMFTGeometry::kAluThickness);
81 :
82 : // The others layers
83 0 : TGeoVolume* kaptonlayer = Make_Kapton(length, AliMFTGeometry::kFlexHeight, AliMFTGeometry::kKaptonThickness);
84 0 : TGeoVolume* varnishlayerIn = Make_Varnish(length, AliMFTGeometry::kFlexHeight, AliMFTGeometry::kVarnishThickness,0);
85 0 : TGeoVolume* varnishlayerOut = Make_Varnish(length, AliMFTGeometry::kFlexHeight, AliMFTGeometry::kVarnishThickness,1);
86 :
87 : // Final flex building
88 0 : Double_t zvarnishIn = AliMFTGeometry::kKaptonThickness/2+AliMFTGeometry::kAluThickness+AliMFTGeometry::kVarnishThickness/2-AliMFTGeometry::kGlueThickness;
89 0 : Double_t zgnd = AliMFTGeometry::kKaptonThickness/2+AliMFTGeometry::kAluThickness/2-AliMFTGeometry::kGlueThickness;
90 0 : Double_t zkaptonlayer = -AliMFTGeometry::kGlueThickness;
91 0 : Double_t zlines = -AliMFTGeometry::kKaptonThickness/2-AliMFTGeometry::kAluThickness/2-AliMFTGeometry::kGlueThickness;
92 0 : Double_t zvarnishOut = -AliMFTGeometry::kKaptonThickness/2-AliMFTGeometry::kAluThickness-AliMFTGeometry::kVarnishThickness/2-AliMFTGeometry::kGlueThickness;
93 :
94 : //-----------------------------------------------------------------------------------------
95 : //-------------------------- Adding all layers of the FPC ----------------------------------
96 : //-----------------------------------------------------------------------------------------
97 0 : flex->AddNode(varnishlayerIn, 1, new TGeoTranslation(0., 0., zvarnishIn)); // inside, in front of the cold plate
98 0 : flex->AddNode(agnd_dgnd, 1, new TGeoTranslation(0., 0., zgnd));
99 0 : flex->AddNode(kaptonlayer, 1, new TGeoTranslation(0., 0., zkaptonlayer));
100 0 : flex->AddNode(lines, 1, new TGeoTranslation(0., 0., zlines));
101 0 : flex->AddNode(varnishlayerOut, 1, new TGeoTranslation(0., 0., zvarnishOut)); // outside
102 :
103 0 : Make_ElectricComponents(flex, nbsensors, length, zvarnishOut);
104 : //-----------------------------------------------------------------------------------------
105 : //-----------------------------------------------------------------------------------------
106 : //-----------------------------------------------------------------------------------------
107 :
108 0 : return flex;
109 0 : }
110 :
111 :
112 : void AliMFTFlex::Make_ElectricComponents(TGeoVolumeAssembly* flex, Int_t nbsensors, Double_t length, Double_t zvarnish)
113 : {
114 : // Making and adding all the electric components
115 0 : TGeoVolume *electric[200];
116 :
117 : // 2 components on the connector side
118 : Int_t total;
119 0 : for(Int_t id=0; id < 2; id++)electric[id] = Make_ElectricComponent(AliMFTGeometry::kCapacitorDx, AliMFTGeometry::kCapacitorDy, AliMFTGeometry::kCapacitorDz, id);
120 0 : flex->AddNode(electric[0], 1, new TGeoTranslation(length/2 - 0.1, AliMFTGeometry::kFlexHeight/2-0.2,
121 0 : zvarnish-AliMFTGeometry::kVarnishThickness/2-AliMFTGeometry::kCapacitorDz/2));
122 0 : flex->AddNode(electric[1], 2, new TGeoTranslation(length/2 - 0.1, AliMFTGeometry::kFlexHeight/2-0.6,
123 0 : zvarnish-AliMFTGeometry::kVarnishThickness/2-AliMFTGeometry::kCapacitorDz/2));
124 : total=2;
125 :
126 : // The connector of the FPC
127 0 : for(Int_t id=0; id < 74; id++)electric[id+total] = Make_ElectricComponent(AliMFTGeometry::kConnectorLength, AliMFTGeometry::kConnectorWidth,
128 0 : AliMFTGeometry::kConnectorThickness, id+total);
129 0 : for(Int_t id=0; id < 37; id++){
130 0 : flex->AddNode(electric[id+total], id+100, new TGeoTranslation(length/2+0.15-AliMFTGeometry::kConnectorOffset, id*0.04-AliMFTGeometry::kFlexHeight/2 + 0.1,
131 0 : zvarnish-AliMFTGeometry::kVarnishThickness/2-AliMFTGeometry::kCapacitorDz/2));
132 0 : flex->AddNode(electric[id+total+37], id+200, new TGeoTranslation(length/2-0.15-AliMFTGeometry::kConnectorOffset, id*0.04-AliMFTGeometry::kFlexHeight/2 + 0.1,
133 0 : zvarnish - AliMFTGeometry::kVarnishThickness/2 - AliMFTGeometry::kCapacitorDz/2));
134 : }
135 : total=total+74;
136 :
137 : // 2 lines of electric components along the FPC in the middle (4 per sensor)
138 0 : for(Int_t id=0; id < 4*nbsensors; id++)electric[id+total] = Make_ElectricComponent(AliMFTGeometry::kCapacitorDy, AliMFTGeometry::kCapacitorDx,
139 0 : AliMFTGeometry::kCapacitorDz, id+total);
140 0 : for(Int_t id=0; id < 2*nbsensors; id++){
141 0 : flex->AddNode(electric[id+total], id+1000, new TGeoTranslation(-length/2 + (id+0.5)*AliMFTGeometry::kSensorLength/2, AliMFTGeometry::kFlexHeight/2 - 0.35,
142 0 : zvarnish - AliMFTGeometry::kVarnishThickness/2 - AliMFTGeometry::kCapacitorDz/2));
143 0 : flex->AddNode(electric[id+total+2*nbsensors], id+2000, new TGeoTranslation(-length/2 + (id+0.5)*AliMFTGeometry::kSensorLength/2, 0.,
144 0 : zvarnish - AliMFTGeometry::kVarnishThickness/2 - AliMFTGeometry::kCapacitorDz/2));
145 : }
146 0 : total=total+4*nbsensors;
147 :
148 : // ------- 3 components on the FPC side --------
149 0 : for(Int_t id=0; id < 3; id++)electric[id+total] = Make_ElectricComponent(AliMFTGeometry::kCapacitorDy, AliMFTGeometry::kCapacitorDx,
150 0 : AliMFTGeometry::kCapacitorDz, id+total);
151 0 : for(Int_t id=0 ; id < 3; id++){
152 0 : flex->AddNode(electric[id+total], id+3000, new TGeoTranslation(-length/2+AliMFTGeometry::kSensorLength+(id+1)*0.3-0.6, -AliMFTGeometry::kFlexHeight/2 + 0.2,
153 0 : zvarnish-AliMFTGeometry::kVarnishThickness/2 - AliMFTGeometry::kCapacitorDz/2));
154 : }
155 0 : }
156 :
157 :
158 : TGeoVolume* AliMFTFlex::Make_ElectricComponent(Double_t dx, Double_t dy, Double_t dz, Int_t id)
159 : {
160 : // the medium has to be changed, see ITS capacitors...
161 0 : TGeoMedium *kMedCopper = gGeoManager->GetMedium("MFT_Cu$");
162 :
163 0 : AliMFTGeometry * mftGeom = AliMFTGeometry::Instance();
164 0 : Int_t idHalfMFT = mftGeom->GetHalfMFTID(fLadderSeg->GetUniqueID());
165 0 : Int_t idHalfDisk = mftGeom->GetHalfDiskID(fLadderSeg->GetUniqueID());
166 0 : Int_t idLadder = mftGeom->GetLadderID(fLadderSeg->GetUniqueID());
167 :
168 0 : TGeoVolume* electriccomponent = new TGeoVolume(Form("electric_%d_%d_%d_%d",idHalfMFT,idHalfDisk,idLadder,id), new TGeoBBox("BOX", dy/2, dx/2, dz/2), kMedCopper);
169 0 : electriccomponent->SetVisibility(1);
170 0 : electriccomponent->SetLineColor(kRed);
171 0 : return electriccomponent;
172 0 : }
173 :
174 :
175 : TGeoVolume* AliMFTFlex::Make_Lines(Int_t nbsensors, Double_t length, Double_t widthflex, Double_t thickness)
176 : {
177 : // One line is built by removing 3 lines of aluminium in the TGeoBBox *layer_def layer. Then one line is made by the 2 remaining aluminium strips.
178 :
179 : // the initial layer of aluminium
180 0 : TGeoBBox *layer_def = new TGeoBBox("layer_def", length/2, widthflex/2, thickness/2);
181 :
182 : // Two holes for fixing and positionning of the FPC on the cold plate
183 0 : TGeoTube *hole1 = new TGeoTube("hole1", 0., AliMFTGeometry::kRadiusHole1, thickness/2 + AliMFTGeometry::kEpsilon);
184 0 : TGeoTube *hole2 = new TGeoTube("hole2", 0., AliMFTGeometry::kRadiusHole2, thickness/2 + AliMFTGeometry::kEpsilon);
185 :
186 0 : TGeoTranslation *t1= new TGeoTranslation ("t1", length/2 - AliMFTGeometry::kHoleShift1, 0., 0.);
187 0 : TGeoSubtraction *layerholesub1 = new TGeoSubtraction(layer_def, hole1, NULL, t1);
188 0 : TGeoCompositeShape *layerhole1 = new TGeoCompositeShape("layerhole1", layerholesub1);
189 :
190 0 : TGeoTranslation *t2= new TGeoTranslation ("t2", length/2 - AliMFTGeometry::kHoleShift2, 0., 0.);
191 0 : TGeoSubtraction *layerholesub2 = new TGeoSubtraction(layerhole1, hole2, NULL, t2);
192 0 : TGeoCompositeShape *layer = new TGeoCompositeShape("layerhole2", layerholesub2);
193 :
194 0 : TGeoBBox *line[25];
195 0 : TGeoTranslation *t[6],*ts[15],*tvdd, *tl[2];
196 0 : TGeoSubtraction *layerl[25];
197 0 : TGeoCompositeShape *layern[25];
198 : Int_t istart, istop;
199 : Int_t kTotalLinesNb=0;
200 : Int_t kTotalLinesNb1, kTotalLinesNb2;
201 : Double_t length_line;
202 :
203 :
204 : // ----------- two lines along the FPC digital side --------------
205 0 : t[0] = new TGeoTranslation ("t0", AliMFTGeometry::kSensorLength/2-AliMFTGeometry::kConnectorOffset/2, -widthflex/2 + 2*AliMFTGeometry::kLineWidth, 0.);
206 0 : line[0] = new TGeoBBox("line0", length/2 - AliMFTGeometry::kConnectorOffset/2 - AliMFTGeometry::kSensorLength/2, AliMFTGeometry::kLineWidth/2,
207 0 : thickness/2 + AliMFTGeometry::kEpsilon);
208 0 : layerl[0] = new TGeoSubtraction(layer, line[0], NULL, t[0]);
209 0 : layern[0] = new TGeoCompositeShape(Form("layer%d",0), layerl[0]);
210 :
211 : istart = 1; istop = 6;
212 0 : for (int iline = istart; iline < istop; iline++){
213 0 : t[iline] = new TGeoTranslation (Form("t%d",iline), AliMFTGeometry::kSensorLength/2 - AliMFTGeometry::kConnectorOffset/2,
214 0 : -widthflex/2 + 2*(iline+1)*AliMFTGeometry::kLineWidth, 0.);
215 0 : line[iline] = new TGeoBBox(Form("line%d",iline), length/2 - AliMFTGeometry::kConnectorOffset/2 - AliMFTGeometry::kSensorLength/2, AliMFTGeometry::kLineWidth/2,
216 0 : thickness/2 + AliMFTGeometry::kEpsilon);
217 0 : layerl[iline] = new TGeoSubtraction(layern[iline-1], line[iline], NULL, t[iline]);
218 0 : layern[iline] = new TGeoCompositeShape(Form("layer%d",iline), layerl[iline]);
219 0 : kTotalLinesNb++;
220 : }
221 :
222 : // --------- lines for the sensors, one line/sensor -------------
223 0 : istart = kTotalLinesNb+1; istop = 6+3*nbsensors;
224 0 : for (int iline = istart; iline < istop; iline++){
225 0 : length_line=length - AliMFTGeometry::kConnectorOffset - TMath::Nint((iline-6)/3)*AliMFTGeometry::kSensorLength - AliMFTGeometry::kSensorLength/2;
226 0 : ts[iline] = new TGeoTranslation (Form("t%d",iline), length/2-length_line/2-AliMFTGeometry::kConnectorOffset, -2*(iline-6)*AliMFTGeometry::kLineWidth+0.5-widthflex/2, 0.);
227 0 : line[iline] = new TGeoBBox(Form("line%d",iline), length_line/2, AliMFTGeometry::kLineWidth/2, thickness/2 + AliMFTGeometry::kEpsilon);
228 0 : layerl[iline] = new TGeoSubtraction(layern[iline-1], line[iline], NULL, ts[iline]);
229 0 : layern[iline] = new TGeoCompositeShape(Form("layer%d",iline), layerl[iline]);
230 0 : kTotalLinesNb++;
231 : }
232 :
233 : // --------- an interspace to separate AVDD and DVDD -------------
234 0 : kTotalLinesNb++;
235 0 : tvdd = new TGeoTranslation ("tvdd", 0., widthflex/2-AliMFTGeometry::kShiftDDGNDline, 0.);
236 0 : line[kTotalLinesNb] = new TGeoBBox(Form("line%d",kTotalLinesNb), length/2, 2*AliMFTGeometry::kLineWidth/2, thickness/2 + AliMFTGeometry::kEpsilon);
237 0 : layerl[kTotalLinesNb] = new TGeoSubtraction(layern[kTotalLinesNb-1], line[kTotalLinesNb], NULL, tvdd);
238 0 : layern[kTotalLinesNb] = new TGeoCompositeShape(Form("layer%d",kTotalLinesNb), layerl[kTotalLinesNb]);
239 0 : kTotalLinesNb++;
240 :
241 : // --------- one line along the FPC analog side -------------
242 0 : istart = kTotalLinesNb; istop = kTotalLinesNb + 2;
243 0 : for (int iline = istart; iline < istop; iline++){
244 0 : length_line=length - AliMFTGeometry::kConnectorOffset;
245 0 : tl[iline-istart] = new TGeoTranslation (Form("tl%d",iline), length/2-length_line/2-AliMFTGeometry::kConnectorOffset,
246 0 : widthflex/2-AliMFTGeometry::kShiftline-2.*(iline-istart)*AliMFTGeometry::kLineWidth, 0.);
247 0 : line[iline] = new TGeoBBox(Form("line%d",iline), length_line/2, AliMFTGeometry::kLineWidth/2, thickness/2 + AliMFTGeometry::kEpsilon);
248 0 : layerl[iline] = new TGeoSubtraction(layern[iline-1], line[iline], NULL, tl[iline-istart]);
249 0 : layern[iline] = new TGeoCompositeShape(Form("layer%d",iline), layerl[iline]);
250 0 : kTotalLinesNb++;
251 : }
252 :
253 0 : AliMFTGeometry * mftGeom = AliMFTGeometry::Instance();
254 0 : Int_t idHalfMFT = mftGeom->GetHalfMFTID(fLadderSeg->GetUniqueID());
255 0 : Int_t idHalfDisk = mftGeom->GetHalfDiskID(fLadderSeg->GetUniqueID());
256 0 : Int_t idLadder = mftGeom->GetLadderID(fLadderSeg->GetUniqueID());
257 :
258 0 : TGeoMedium *kMedAlu = gGeoManager->GetMedium("MFT_Alu$");
259 :
260 0 : TGeoVolume *lineslayer = new TGeoVolume(Form("lineslayer_%d_%d_%d",idHalfMFT,idHalfDisk,idLadder), layern[kTotalLinesNb-1], kMedAlu);
261 0 : lineslayer->SetVisibility(1);
262 0 : lineslayer->SetLineColor(kBlue);
263 0 : return lineslayer;
264 0 : }
265 :
266 :
267 : TGeoVolume* AliMFTFlex::Make_AGND_DGND(Double_t length, Double_t widthflex, Double_t thickness)
268 : {
269 : // AGND and DGND layers
270 0 : TGeoBBox *layer = new TGeoBBox("layer", length/2, widthflex/2, thickness/2);
271 0 : TGeoTube *hole1 = new TGeoTube("hole1", 0., AliMFTGeometry::kRadiusHole1, thickness/2 + AliMFTGeometry::kEpsilon);
272 0 : TGeoTube *hole2 = new TGeoTube("hole2", 0., AliMFTGeometry::kRadiusHole2, thickness/2 + AliMFTGeometry::kEpsilon);
273 :
274 0 : TGeoTranslation *t1= new TGeoTranslation ("t1", length/2-AliMFTGeometry::kHoleShift1, 0., 0.);
275 0 : TGeoSubtraction *layerholesub1 = new TGeoSubtraction(layer, hole1, NULL, t1);
276 0 : TGeoCompositeShape *layerhole1 = new TGeoCompositeShape("layerhole1", layerholesub1);
277 :
278 0 : TGeoTranslation *t2= new TGeoTranslation ("t2", length/2-AliMFTGeometry::kHoleShift2, 0., 0.);
279 0 : TGeoSubtraction *layerholesub2 = new TGeoSubtraction(layerhole1, hole2, NULL, t2);
280 0 : TGeoCompositeShape *layerhole2 = new TGeoCompositeShape("layerhole2", layerholesub2);
281 :
282 : //--------------
283 : TGeoBBox *line[3];
284 : TGeoTranslation *t[3];
285 : TGeoCompositeShape *layern[3];
286 : TGeoSubtraction *layerl[3];
287 : Double_t length_line;
288 0 : length_line=length - AliMFTGeometry::kConnectorOffset;
289 :
290 : // First, the two lines along the FPC side
291 0 : t[0] = new TGeoTranslation("t0", length/2-length_line/2-AliMFTGeometry::kConnectorOffset, widthflex/2 - AliMFTGeometry::kShiftline, 0.);
292 0 : line[0] = new TGeoBBox("line0", length/2 - AliMFTGeometry::kConnectorOffset/2, AliMFTGeometry::kLineWidth/2, thickness/2 + AliMFTGeometry::kEpsilon);
293 0 : layerl[0] = new TGeoSubtraction(layerhole2, line[0], NULL, t[0]);
294 0 : layern[0] = new TGeoCompositeShape(Form("layer%d",0), layerl[0]);
295 :
296 0 : t[1] = new TGeoTranslation("t1", length/2-length_line/2-AliMFTGeometry::kConnectorOffset,
297 0 : widthflex/2 - AliMFTGeometry::kShiftline - 2*AliMFTGeometry::kLineWidth, 0.);
298 0 : line[1] = new TGeoBBox("line1", length/2 - AliMFTGeometry::kConnectorOffset/2, AliMFTGeometry::kLineWidth/2,
299 0 : thickness/2 + AliMFTGeometry::kEpsilon);
300 0 : layerl[1] = new TGeoSubtraction(layern[0], line[1], NULL, t[1]);
301 0 : layern[1] = new TGeoCompositeShape(Form("layer%d",1), layerl[1]);
302 :
303 : // Now the interspace to separate the AGND et DGND --> same interspace compare the AVDD et DVDD
304 0 : t[2] = new TGeoTranslation("t2", length/2-length_line/2, widthflex/2 - AliMFTGeometry::kShiftDDGNDline, 0.);
305 0 : line[2] = new TGeoBBox("line2", length/2 - AliMFTGeometry::kConnectorOffset/2, AliMFTGeometry::kLineWidth,
306 0 : thickness/2 + AliMFTGeometry::kEpsilon);
307 0 : layerl[2] = new TGeoSubtraction(layern[1], line[2], NULL, t[2]);
308 0 : layern[2] = new TGeoCompositeShape(Form("layer%d",2), layerl[2]);
309 :
310 : //--------------
311 :
312 0 : AliMFTGeometry * mftGeom = AliMFTGeometry::Instance();
313 0 : Int_t idHalfMFT = mftGeom->GetHalfMFTID(fLadderSeg->GetUniqueID());
314 0 : Int_t idHalfDisk = mftGeom->GetHalfDiskID(fLadderSeg->GetUniqueID());
315 0 : Int_t idLadder = mftGeom->GetLadderID(fLadderSeg->GetUniqueID());
316 :
317 0 : TGeoMedium *kMedAlu = gGeoManager->GetMedium("MFT_Alu$");
318 0 : TGeoVolume *alulayer = new TGeoVolume(Form("alulayer_%d_%d_%d",idHalfMFT,idHalfDisk,idLadder), layern[2], kMedAlu);
319 0 : alulayer->SetVisibility(1);
320 0 : alulayer->SetLineColor(kBlue);
321 0 : return alulayer;
322 0 : }
323 :
324 :
325 : TGeoVolume* AliMFTFlex::Make_Kapton(Double_t length, Double_t widthflex, Double_t thickness)
326 : {
327 0 : TGeoBBox *layer = new TGeoBBox("layer", length/2, widthflex/2, thickness/2);
328 : // Two holes for fixing and positionning of the FPC on the cold plate
329 0 : TGeoTube *hole1 = new TGeoTube("hole1", 0., AliMFTGeometry::kRadiusHole1, thickness/2+AliMFTGeometry::kEpsilon);
330 0 : TGeoTube *hole2 = new TGeoTube("hole2", 0., AliMFTGeometry::kRadiusHole2, thickness/2+AliMFTGeometry::kEpsilon);
331 :
332 0 : TGeoTranslation *t1= new TGeoTranslation ("t1", length/2-AliMFTGeometry::kHoleShift1, 0., 0.);
333 0 : TGeoSubtraction *layerholesub1 = new TGeoSubtraction(layer, hole1, NULL, t1);
334 0 : TGeoCompositeShape *layerhole1 = new TGeoCompositeShape("layerhole1", layerholesub1);
335 :
336 0 : TGeoTranslation *t2= new TGeoTranslation ("t2", length/2-AliMFTGeometry::kHoleShift2, 0., 0.);
337 0 : TGeoSubtraction *layerholesub2 = new TGeoSubtraction(layerhole1, hole2, NULL, t2);
338 0 : TGeoCompositeShape *layerhole2 = new TGeoCompositeShape("layerhole2", layerholesub2);
339 :
340 0 : AliMFTGeometry * mftGeom = AliMFTGeometry::Instance();
341 0 : Int_t idHalfMFT = mftGeom->GetHalfMFTID(fLadderSeg->GetUniqueID());
342 0 : Int_t idHalfDisk = mftGeom->GetHalfDiskID(fLadderSeg->GetUniqueID());
343 0 : Int_t idLadder = mftGeom->GetLadderID(fLadderSeg->GetUniqueID());
344 :
345 0 : TGeoMedium *kMedKapton = gGeoManager->GetMedium("MFT_Kapton$");
346 0 : TGeoVolume *kaptonlayer = new TGeoVolume(Form("kaptonlayer_%d_%d_%d",idHalfMFT,idHalfDisk,idLadder), layerhole2, kMedKapton);
347 0 : kaptonlayer->SetVisibility(1);
348 0 : kaptonlayer->SetLineColor(kYellow);
349 0 : return kaptonlayer;
350 0 : }
351 :
352 :
353 : TGeoVolume* AliMFTFlex::Make_Varnish(Double_t length, Double_t widthflex, Double_t thickness, Int_t iflag)
354 : {
355 0 : TGeoBBox *layer = new TGeoBBox("layer", length/2, widthflex/2, thickness/2);
356 : // Two holes for fixing and positionning of the FPC on the cold plate
357 0 : TGeoTube *hole1 = new TGeoTube("hole1", 0., AliMFTGeometry::kRadiusHole1, thickness/2+AliMFTGeometry::kEpsilon);
358 0 : TGeoTube *hole2 = new TGeoTube("hole2", 0., AliMFTGeometry::kRadiusHole2, thickness/2+AliMFTGeometry::kEpsilon);
359 :
360 0 : TGeoTranslation *t1= new TGeoTranslation ("t1", length/2-AliMFTGeometry::kHoleShift1, 0., 0.);
361 0 : TGeoSubtraction *layerholesub1 = new TGeoSubtraction(layer, hole1, NULL, t1);
362 0 : TGeoCompositeShape *layerhole1 = new TGeoCompositeShape("layerhole1", layerholesub1);
363 :
364 0 : TGeoTranslation *t2= new TGeoTranslation ("t2", length/2-AliMFTGeometry::kHoleShift2, 0., 0.);
365 0 : TGeoSubtraction *layerholesub2 = new TGeoSubtraction(layerhole1, hole2, NULL, t2);
366 0 : TGeoCompositeShape *layerhole2 = new TGeoCompositeShape("layerhole2", layerholesub2);
367 :
368 0 : AliMFTGeometry * mftGeom = AliMFTGeometry::Instance();
369 0 : Int_t idHalfMFT = mftGeom->GetHalfMFTID(fLadderSeg->GetUniqueID());
370 0 : Int_t idHalfDisk = mftGeom->GetHalfDiskID(fLadderSeg->GetUniqueID());
371 0 : Int_t idLadder = mftGeom->GetLadderID(fLadderSeg->GetUniqueID());
372 :
373 0 : TGeoMedium *kMedVarnish = gGeoManager->GetMedium("MFT_Epoxy$"); // we assume that varnish = epoxy ...
374 0 : TGeoVolume *varnishlayer = new TGeoVolume(Form("varnishlayer_%d_%d_%d_%d",idHalfMFT,idHalfDisk,idLadder,iflag), layerhole2, kMedVarnish);
375 0 : varnishlayer->SetVisibility(1);
376 0 : varnishlayer->SetLineColor(kGreen-1);
377 0 : return varnishlayer;
378 0 : }
379 :
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