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Geometry bug fixes and the like. Work still progressing.
[u/mrichter/AliRoot.git] / ITS / AliITSGeometrySSDCone.cxx
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aa9bc63b 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
15
16/*
17$Log$
887366e2 18Revision 1.2 2003/03/25 23:27:19 nilsen
19ITS new Geometry files. Not yet ready for uses, committed to allow additional
20development.
21
162acd47 22Revision 1.1 2003/02/10 17:03:52 nilsen
23New version and structure of ITS V11 geometry. Work still in progress.
24
aa9bc63b 25$Id$
26*/
27
28#include <Riostream.h>
29#include <stdio.h>
30#include <stdlib.h>
31#include <TMath.h>
32#include <TGeometry.h>
33#include <TNode.h>
34#include <TTUBE.h>
35#include <TTUBS.h>
36#include <TPCON.h>
37#include <TFile.h> // only required for Tracking function?
38#include <TCanvas.h>
39#include <TObjArray.h>
40#include <TLorentzVector.h>
41#include <TObjString.h>
42#include <TClonesArray.h>
43#include <TBRIK.h>
44#include <TSystem.h>
45#include <TVector3.h>
162acd47 46#include <AliRun.h>
47#include <AliITS.h>
aa9bc63b 48
49#include "AliITSGeometrySSDCone.h"
50
51ClassImp(AliITSGeometrySSDCone)
52
53//______________________________________________________________________
162acd47 54AliITSGeometrySSDCone::AliITSGeometrySSDCone() : AliITSBaseGeometry(){
aa9bc63b 55 //Default Constructor for SSD Cone geometry
56
57 SetScalemm();
58}
59//______________________________________________________________________
162acd47 60AliITSGeometrySSDCone::AliITSGeometrySSDCone(AliITS *its,TVector3 &tran,
61 const char *moth,Int_t mat0):
62 AliITSBaseGeometry(its,0){
aa9bc63b 63 //Standard Constructor for SSD Cone geometry
64 // Inputs:
65 // Double_t z0 Z-axis shift of this volume
66 // Outputs:
67 // none.
68 // Return:
69 // none.
70 Double_t t; // some general angle and coordinates [degrees].
162acd47 71 Double_t Z,Rmin,Rmax; // additional point not needed in call to pcons.
aa9bc63b 72
162acd47 73 fThickness = 13.0; //mm, Thickness of Rohacell+carbon fiber
74 fCthick=1.5; //mm, Carbon finber thickness
75 fRcurv=15.0; // mm, Radius of curvature.
76 fTc=51.0; // angle of SSD cone [degrees].
77 fSintc=Sind(fTc);fCostc=Cosd(fTc);fTantc=Tand(fTc);
78 fZ0=0.0;fZouterMilled=13.5-5.0;fZcylinder=170.0;fZposts=196.0;
79 fNspoaks=12;fNposts=4;fNmounts=4;
80 fRoutMax=0.5*985.0;fRoutHole=0.5*965.0;fRoutMin=0.5*945.0;
81 fRholeMax=0.5*890.0;fRholeMin=0.5*740.0;
82 fRpostMin=316.0;fdRpost=23.0;fZpostMax=196.0;fPhi0Post=30.0;
83 fRinMax=0.5*590.0;fRinCylinder=0.5*597.0;fRinHole=0.5*575.0;
84 fRinMin=0.5*562.0;fdZin=15.0;
85 // SSD-SDD Thermal/Mechanical cylinder mounts
86 fNinScrews=40;
87 fPhi0Screws=0.5*360.0/((Double_t)fNinScrews);fRcylinderScrews= 0.5*570.0;
88 fDscrewHead=8.0;fDscrewShaft=4.6;fThScrewHeadHole=8.5;
89 // SDD mounting bracket, SSD part
90 fNssdSupports=3;fPhi0SDDsupports=90.0;
91 fRsddSupportPlate = 0.5*585.0;fThSDDsupportPlate=4.0;
92 fWsddSupportPlate = 70.0;
93 fSSDcf=26; // SSD support cone Carbon Fiber materal number.
94 fSSDfs=25; // SSD support cone inserto stesalite 4411w.
95 fSSDfo=68; // SSD support cone foam, Rohacell 50A.
96 fSSDsw=14; // SSD support cone screw material,Stainless steal
97 fNcD=0; // number of screw ends (copy number)
98 fNcE=0; // number of pin end (copy number)
aa9bc63b 99
100 SetScalemm();
162acd47 101 // Poly-cone Volume A. Top part of SSD cone Carbon Fiber.
102 fA.Size(7,"SSD Suport cone Carbon Fiber Surface outer left");
103 // Poly-cone Volume B. Stesalite inside volume A.
104 fB.Size(6,"SSD Suport cone Inserto Stesalite left edge");
105 // Poly-cone Volume C. Foam inside volume A.
106 fC.Size(4,"SSD Suport cone Rohacell foam left edge");
107 fD.SetName("Screw+stud used to mount things to the SSD support cone");
108 fE.SetName("pin used to mount things to the SSD support cone");
109 // Poly-cone Volume F. Foam in spoak reagion, inside volume A.
110 fF.Size(4,"SSD Top Suport cone Rohacell foam Spoak");
111 fG.Size(4,"SSD spoak carbon fiber surfaces"); // Poly-cone Volume G.
112 fH.Size(4,"SSD support cone Rohacell foam Spoak"); // Poly-cone Volume H.
113 fI.Size(9,"SSD lower/inner right part of SSD cone"); //Poly-cone Volume I.
114 fJ.Size(4,"SSD inner most foam core"); // Poly-cone Volume J.
887366e2 115 fK.Size(6,"SSD inner most inserto material"); // Poly-cone Volume K.
162acd47 116 fL.Size(4,"SSD Bottom cone Rohacell foam Spoak"); // Poly-cone Volume L.
117 fM.Size(4,"SSD mounting post foam substitute, Inserto");//Poly-cone Vol. M
118 fN.Size(4,"SSD mounting post CF subsititute, Inserto");//Poly-cone Vol. N
119 fO.Size(3,"SSD mounting post, carbon fiber"); // Poly-cone Volume O.
120 fP.Size(3,"SSD mounting post, Inserto"); // Poly-cone Volume P.
121 fQ.Size(4,"SSD Thermal sheal stainless steel bolts");//Poly-cone Volume Q.
122 fR.SetName("Air in front of bolt (in stasolit)");
123 fS.SetName("Air in front of Stainless Steal Screw end, N6");
124 fT.Size(2,"SSD-SDD mounting bracket Inserto-> Al."); //Poly-cone Volume T.
125 fU.Size(4,"SSD-SDD mounting bracket CF->Al."); // Poly-cone Volume U.
aa9bc63b 126 // Lets start with the upper left outer carbon fiber surface.
127 // Between za[2],rmaxa[2] and za[4],rmaxa[4] there is a curved section
162acd47 128 // given by rmaxa = rmaxa[2]-r*Sind(t) for 0<=t<=fTc and
129 // za = za[2] + r*Cosd(t) for 0<=t<=fTc. Simularly between za[1],rmina[1
aa9bc63b 130 // and za[3],rmina[3] there is a curve section given by
162acd47 131 // rmina = rmina[1]-r*Sind(t) for 0<=t<=fTc and za = za[1]+r&Sind(t)
132 // for t<=0<=fTc. These curves have been replaced by straight lines
aa9bc63b 133 // between the equivelent points for simplicity.
162acd47 134 Double_t dza = fThickness/fSintc-(fRoutMax-fRoutMin)/fTantc;
aa9bc63b 135 if(dza<=0){ // The number or order of the points are in error for a proper
136 // call to pcons!
137 Error("SSDcone","The definition of the points for a call to PCONS is"
138 " in error. abort.");
139 return;
140 } // end if
162acd47 141 fA.P0() = 0.0;
142 fA.dP() = 360.0;
143 fA.Z(0) = fZ0;
144 fA.Rn(0) = fRoutMin;
145 fA.Rx(0) = fRoutMax;
146 fA.Z(1) = fA.ZAt(0)+fZouterMilled - dza; // za[2] - dza.
147 fA.Rn(1) = fA.Rmin(0);
148 fA.Rx(1) = fA.Rmax(0);
149 fA.Z(2) = fA.ZAt(0)+fZouterMilled; //From Drawing ALR-0767 and ALR-0767/3
150 fA.Rx(2) = fA.Rmax(0);
151 RadiusOfCurvature(fRcurv,0.0,fA.ZAt(1),fA.Rmin(1),fTc,fA.Z(3),fA.Rn(3));
152 fA.Rn(2) = RminFrom2Points(fA,3,1,fA.ZAt(2));
153 RadiusOfCurvature(fRcurv,0.0,fA.ZAt(2),fA.Rmax(2),fTc,fA.Z(4),fA.Rx(4));
154 fA.Rn(4) = RminFromZSSDcone(fA.ZAt(4));
155 fA.Rx(3) = RmaxFrom2Points(fA,4,2,fA.ZAt(3));
156 fA.Rn(5) = fRholeMax;
157 fA.Z(5) = Zfrom2MinPoints(fA,4,3,fA.Rmin(5));
158 fA.Rx(5) = RmaxFromZSSDcone(fA.ZAt(5));
159 fA.Rn(6) = fRholeMax;
160 fA.Rx(6) = fA.Rmin(6);
161 fA.Z(6) = ZFromRmaxSSDcone(fA.Rmax(6));
aa9bc63b 162 //
163 // Now lets define the Inserto Stesalite 4411w material volume.
162acd47 164 fB.P0() = 0.0;
165 fB.dP() = 360.0;
166 fB.Z(0) = fA.ZAt(0);
167 fB.Rn(0) = fA.Rmin(0)+fCthick;
168 fB.Rx(0) = fA.Rmax(0)-fCthick;
169 fB.Z(1) = fA.ZAt(1);
170 fB.Rn(1) = fB.Rmin(0);
171 fB.Rx(1) = fB.Rmax(0);
172 fB.Z(2) = fA.ZAt(2);
173 fB.Rx(2) = fB.Rmax(1);
174 RadiusOfCurvature(fRcurv-fCthick,0.,fB.ZAt(2),fB.Rmax(2),
175 fTc,fB.Z(3),fB.Rx(3));
176 RadiusOfCurvature(fRcurv+fCthick,0.,fB.ZAt(1),fB.Rmin(1),
177 fTc,fB.Z(4),fB.Rn(4));
178 fB.Rn(2) = RminFrom2Points(fB,4,1,fB.ZAt(2));
179 fB.Rn(3) = RminFrom2Points(fB,4,1,fB.ZAt(3));
180 fB.Z(5) = fB.ZAt(4)+(fThickness-2.0*fCthick)/fSintc;
181 fB.Rn(5) = RmaxFromZSSDcone(fB.ZAt(5),-fCthick);
182 fB.Rx(5) = fB.Rmin(5);
183 fB.Rx(4) = RmaxFrom2Points(fB,5,3,fB.ZAt(4));
aa9bc63b 184 //
185 // Now lets define the Rohacell foam material volume.
162acd47 186 fC.P0() = 0.0;
187 fC.dP() = 360.0;
188 fC.Z(0) = fB.ZAt(4);
189 fC.Rn(0) = fB.Rmin(4);
190 fC.Rx(0) = fC.Rmin(0);
191 fC.Z(1) = fB.ZAt(5);
192 fC.Rx(1) = fB.Rmin(5);
193 fC.Rn(2) = fA.Rmin(5)+fCthick;//leave space for carbon fiber covering hole
887366e2 194 fC.Z(2) = ZFromRminSSDcone(fC.Rmin(2),+fCthick);
162acd47 195 fC.Rn(1) = RminFrom2Points(fC,2,0,fC.ZAt(1));
196 fC.Rx(3) = fA.Rmin(6)+fCthick;
197 fC.Rn(3) = fC.Rmax(3);
198 fC.Z(3) = ZFromRmaxSSDcone(fC.Rx(3),-fCthick);
199 fC.Rx(2) = RmaxFrom2Points(fC,3,1,fC.ZAt(2));
aa9bc63b 200 //
201 // In volume SCB, th Inserto Stesalite 4411w material volume, there
202 // are a number of Stainless steel screw and pin studs which will be
203 // filled with screws/studs.
162acd47 204 fD.Rn()=0.0,fD.Rx()=6.0,fD.Z()=0.5*10.0; // mm
205 fE.Rn()=0.0;fE.Rx()=6.0;fE.Z()=0.5*12.0; // mm
aa9bc63b 206 //
207 // There is no carbon fiber between this upper left section and the
208 // SSD spoaks. We remove it by replacing it with Rohacell foam.
162acd47 209 t = fCthick/(0.5*(fRholeMax+fRholeMin));// It is not posible to get the
aa9bc63b 210 // carbon fiber thickness uniform in this phi direction. We can only
211 // make it a fixed angular thickness.
212 t *= 180.0/TMath::Pi();
162acd47 213 fF.P0() = 12.5+t; // degrees see drawing ALR-0767.
214 fF.dP() = 5.0 - 2.0*t; // degrees
215 fF.Z(0) = fC.ZAt(2);
216 fF.Rn(0) = fC.Rmin(3);
217 fF.Rx(0) = fF.Rmin(0);
218 fF.Rn(1) = fA.Rmin(5);
219 fF.Rx(1) = fF.Rmin(0);
887366e2 220 fF.Z(1) = ZFromRminSSDcone(fF.Rmin(1),+fCthick);
162acd47 221 fF.Z(2) = fC.ZAt(3);
222 fF.Rn(2) = fF.Rmin(1);
223 fF.Rx(2) = fF.Rmax(1);
224 fF.Rn(3) = fA.Rmin(6);
225 fF.Rx(3) = fF.Rmin(3);
226 fF.Z(3) = ZFromRmaxSSDcone(fF.Rmax(3),-fCthick);
aa9bc63b 227 //=================================================================
228 // Now for the spoak part of the SSD cone.
229 // It is not posible to inclue the radius of curvature between
230 // the spoak part and the upper left part of the SSD cone or lowwer right
231 // part. This would be discribed by the following curves.
162acd47 232 // R = Rmax - (5mm)*Sin(t) phi = phi0+(5mm*180/(Pi*fRoutHole))*Sin(t)
aa9bc63b 233 // where 0<=t<=90 For the inner curve a simular equiation holds.
162acd47 234 fG.P0() = 12.5; // degrees see drawing ALR-0767.
235 fG.dP() = 5.0; // degrees
236 fG.Z(0) = fA.ZAt(5);
237 fG.Rn(0) = fA.Rmin(5);
238 fG.Rx(0) = fG.Rn(0);
239 fG.Z(1) = fA.ZAt(6);
240 fG.Rn(1) = RminFromZSSDcone(fG.ZAt(1));
241 fG.Rx(1) = fG.Rmax(0);
242 fG.Rn(2) = fRholeMin;
243 fG.Z(2) = ZFromRminSSDcone(fG.Rmin(2));
244 fG.Rx(2) = RmaxFromZSSDcone(fG.ZAt(2));
245 fG.Rn(3) = fG.Rmin(2);
246 fG.Rx(3) = fG.Rmin(3);
247 fG.Z(3) = ZFromRmaxSSDcone(fG.Rmax(3));
aa9bc63b 248 // For the foam core.
162acd47 249 t = fCthick/(0.5*(fRholeMax+fRholeMin));// It is not posible to get the
aa9bc63b 250 // carbon fiber thickness uniform in this phi direction. We can only
251 // make it a fixed angular thickness.
252 t *= 180.0/TMath::Pi();
887366e2 253 fH.P0() = 12.5+t; // degrees
254 fH.dP() = 5.0 - 2.0*t; // degrees see drawing ALR-0767.
162acd47 255 fH.Z(0) = fF.ZAt(1);
256 fH.Rn(0) = fG.Rmin(0);
257 fH.Rx(0) = fH.Rmin(0);
258 fH.Z(1) = fF.ZAt(3);
887366e2 259 fH.Rn(1) = RminFromZSSDcone(fH.Z(1),+fCthick);
162acd47 260 fH.Rx(1) = fH.Rmax(0);
261 fH.Z(2) = ZFromRminSSDcone(fG.Rmin(2),+fCthick);
262 fH.Rn(2) = fG.Rmin(2);
263 fH.Rx(2) = RmaxFromZSSDcone(fH.Z(2),-fCthick);
264 fH.Z(3) = ZFromRmaxSSDcone(fG.Rmin(3),-fCthick);
265 fH.Rn(3) = fG.Rmin(3);
266 fH.Rx(3) = fH.Rn(3);
aa9bc63b 267 //
268 //==================================================================
269 // Now for the Inner most part of the SSD cone.
162acd47 270 fI.P0() = 0.0;
271 fI.dP() = 360.0;
272 fI.Z(0) = fG.ZAt(2);
273 fI.Rn(0) = fG.Rmin(2);
274 fI.Rx(0) = fI.Rmin(0);
275 fI.Z(1) = fG.ZAt(3);
276 fI.Rn(1) = RminFromZSSDcone(fI.ZAt(1));
277 fI.Rx(1) = fI.Rmax(0);
278 fI.Rn(4) = fRinMin;
279 fI.Rn(5) = fRinMin;
887366e2 280 RadiusOfCurvature(fRcurv,90.0,0.0,fRinMax,90.0-fTc,Z,fI.Rx(5)); // z dummy
162acd47 281 fI.Z(5) = ZFromRmaxSSDcone(fI.Rx(5));
282 fI.Z(6) = fZcylinder;
283 fI.Rn(6) = fRinMin;
284 fI.Z(7) = fI.Z(6);
285 fI.Rn(7) = fRinCylinder;
286 fI.Rn(8) = fRinCylinder;
287 fI.Rx(8) = fI.Rmin(8);
288 Rmin = fI.Rmin(5);
289 RadiusOfCurvature(fRcurv,90.0-fTc,fI.Z(5),fI.Rmax(5),90.0,Z,Rmax);
290 Rmax = fRinMax;
887366e2 291 fI.Z(8) = Z+(fI.ZAt(5)-Z)*(fI.Rmax(8)-Rmax)/(fI.Rmax(5)-Rmax);
162acd47 292 fI.Rx(6) = RmaxFrom2Points(fI,8,5,fI.ZAt(6));
293 fI.Rx(7) = fI.Rmax(6);
294 fI.Z(3) = Z-fdZin;
295 fI.Z(4) = fI.ZAt(3);
296 fI.Rx(3) = RmaxFromZSSDcone(fI.ZAt(3));
297 fI.Rx(4) = fI.Rx(3);
298 //rmin dummy
299 RadiusOfCurvature(fRcurv,90.,fI.ZAt(3),0.,90.-fTc,fI.Z(2),Rmin);
300 fI.Rn(2) = RminFromZSSDcone(fI.ZAt(2));
301 fI.Rx(2) = RmaxFromZSSDcone(fI.ZAt(2));
302 // z dummy
303 RadiusOfCurvature(fRcurv,90.-fTc,0.0,fI.Rmin(2),90.0,Z,fI.Rn(3));
aa9bc63b 304 // Now for Inserto volume at the inner most radius.
162acd47 305 fK.P0() = 0.0;
306 fK.dP() = 360.0;
307 fK.Z(1) = fI.ZAt(3)+fCthick;
308 fK.Rn(1) = fI.Rmin(3);
309 fK.Z(2) = fK.ZAt(1);
310 fK.Rn(2) = fI.Rmin(4);
311 fK.Rn(3) = fK.Rmin(2);
312 fK.Rn(4) = fK.Rmin(2);
887366e2 313 fK.Rx(4) = fI.Rmax(5)-fCthick*fSintc;
162acd47 314 RadiusOfCurvature(fRcurv+fCthick,90.0,fK.ZAt(1),fK.Rmin(1),
315 90.0-fTc,fK.Z(0),fK.Rn(0));
316 fK.Rx(0) = fK.Rmin(0);
887366e2 317 fK.Z(3) = fK.ZAt(0)+(fThickness-2.0*fCthick)*fCostc;;
318 fK.Rx(3) = fK.Rmax(0)+(fThickness-2.0*fCthick)*fSintc;
162acd47 319 fK.Rx(1) = RmaxFrom2Points(fK,3,0,fK.ZAt(1));
320 fK.Rx(2) = fK.Rmax(1);
162acd47 321 fK.Z(4) = ZFromRmaxSSDcone(fK.Rmax(4),-fCthick);
887366e2 322 fK.Rn(5) = fK.Rmin(2);
323 fK.Z(5) = fI.ZAt(6);
324 fK.Rx(5) = (fI.Rmax(5)-fI.Rmax(8))/(fI.ZAt(5)-fI.ZAt(8))*
325 (fK.ZAt(5)-fK.ZAt(4)) + fK.Rmax(4);
aa9bc63b 326 // Now for foam core at the inner most radius.
162acd47 327 fJ.P0() = 0.0;
328 fJ.dP() = 360.0;
329 fJ.Rn(0) = fI.Rmin(0)-fCthick;
330 fJ.Z(0) = ZFromRminSSDcone(fJ.Rmin(0),+fCthick);
331 fJ.Rx(0) = fJ.Rmin(0);
332 fJ.Rx(1) = fJ.Rmax(0);
333 fJ.Z(1) = ZFromRmaxSSDcone(fJ.Rmax(1),-fCthick);
887366e2 334 fJ.Rn(1) = RminFromZSSDcone(fJ.ZAt(1),+fCthick);
162acd47 335 fJ.Z(2) = fK.ZAt(0);
336 fJ.Rn(2) = fK.Rmin(0);
337 fJ.Rx(2) = RmaxFromZSSDcone(fJ.ZAt(2),-fCthick);
338 fJ.Z(3) = fK.ZAt(3);
339 fJ.Rn(3) = fK.Rmax(3);
340 fJ.Rx(3) = fJ.Rmin(3);
aa9bc63b 341 // Now for foam core at the top of the inner most radius where
342 // the spoaks are.
162acd47 343 t = fCthick/(0.5*(fRholeMax+fRholeMin));// It is not posible to get the
aa9bc63b 344 // carbon fiber thickness uniform in this phi direction. We can only
345 // make it a fixed angular thickness.
346 t *= 180.0/TMath::Pi();
887366e2 347 fL.P0() = 12.5+t; // degrees
348 fL.dP() = 5.0 - 2.0*t; // degrees see drawing ALR-0767.
162acd47 349 fL.Z(0) = fH.ZAt(2);
887366e2 350 fL.Rn(0) = fH.Rmin(2);
162acd47 351 fL.Rx(0) = fL.Rmin(0);
352 fL.Z(1) = fJ.ZAt(0);
887366e2 353 fL.Rn(1) = fJ.Rmin(0);
162acd47 354 fL.Rx(1) = fI.Rmax(1);
355 fL.Z(2) = fH.ZAt(3);
356 fL.Rn(2) = fL.Rmin(1);
357 fL.Rx(2) = fL.Rmax(1);
358 fL.Z(3) = fJ.ZAt(1);
359 fL.Rn(3) = fL.Rmin(2);
360 fL.Rx(3) = fL.Rmin(3);
aa9bc63b 361 // Now for the SSD mounting posts
887366e2 362 fO.P0() = fPhi0Post; // degrees
363 fO.dP() = 180.0*fdRpost/(fRpostMin+0.5*fdRpost)/TMath::Pi(); //
162acd47 364 fO.Rn(0) = fRpostMin+fdRpost;
365 fO.Rx(0) = fO.Rmin(0);
366 fO.Z(0) = ZFromRmaxSSDcone(fO.Rmax(0));
367 fO.Rn(1) = fRpostMin;
368 fO.Z(1) = ZFromRmaxSSDcone(fO.Rmin(1));
369 fO.Rx(1) = fO.Rmax(0);
370 fO.Z(2) = fZ0+fZpostMax;
371 fO.Rn(2) = fRpostMin;
372 fO.Rx(2) = fO.Rmin(2)+fdRpost;
aa9bc63b 373 // Now for the SSD mounting posts
162acd47 374 t = 180.0*fCthick/(fRpostMin+0.5*fdRpost)/TMath::Pi();
375 fP.dP() = fO.DPhi()-2.0*t; // degrees
376 fP.P0() = fO.Phi0()+t; //
377 fP.Rn(0) = fO.Rmin(0)-fCthick;
378 fP.Rx(0) = fP.Rmin(0);
379 fP.Z(0) = ZFromRmaxSSDcone(fP.Rmax(0));
887366e2 380 fP.Rn(1) = fO.Rmin(1)+fCthick;
162acd47 381 fP.Rx(1) = fO.Rmin(0)-fCthick;
887366e2 382 fP.Z(1) = ZFromRmaxSSDcone(fP.Rmin(1));
162acd47 383 fP.Rn(2) = fP.Rmin(1);
384 fP.Rx(2) = fP.Rmax(1);
385 fP.Z(2) = fZ0+fZpostMax;
aa9bc63b 386 // This insrto continues into the SSD cone displacing the foam
387 // and the carbon fiber surface at those points where the posts are.
162acd47 388 fM.P0() = fP.Phi0();
389 fM.dP() = fP.DPhi();
390 fM.Rn(0) = fRpostMin+fdRpost-fCthick;
391 fM.Rx(0) = fM.Rmin(0);
392 fM.Z(0) = ZFromRminSSDcone(fM.Rmin(0),+fCthick);
393 fM.Rx(1) = fM.Rmax(0);
394 fM.Z(1) = ZFromRmaxSSDcone(fM.Rmax(1),-fCthick);
395 fM.Rn(1) = RminFromZSSDcone(fM.ZAt(1),+fCthick);
396 fM.Rn(2) = fRpostMin+fCthick;
397 fM.Z(2) = ZFromRminSSDcone(fM.Rmin(2),+fCthick);
398 fM.Rx(2) = RmaxFromZSSDcone(fM.ZAt(2),-fCthick);
399 fM.Rn(3) = fM.Rmin(2);
400 fM.Rx(3) = fM.Rmin(3);
401 fM.Z(3) = ZFromRmaxSSDcone(fM.Rmax(3),-fCthick);
402 //
403 fN.P0() = fP.Phi0();
404 fN.dP() = fP.DPhi();
405 fN.Z(0) = fM.ZAt(1);
406 fN.Rn(0) = fM.Rmax(1);
407 fN.Rx(0) = fN.Rmin(0);
408 fN.Rx(1) = fN.Rmax(0);
409 fN.Z(1) = ZFromRmaxSSDcone(fN.Rmax(1));
887366e2 410 fN.Rn(1) = RmaxFromZSSDcone(fN.ZAt(1),-fCthick);
162acd47 411 fN.Z(2) = fM.ZAt(3);
412 fN.Rn(2) = fM.Rmin(3);
413 fN.Rx(2) = RmaxFromZSSDcone(fN.ZAt(2));
414 fN.Rn(3) = fN.Rmin(2);
415 fN.Rx(3) = fN.Rmin(3);
416 fN.Z(3) = ZFromRmaxSSDcone(fN.Rmax(3));
417 // Bolt heads holding the SSD-SDD tube to the SSD cone.
418 // Bolt -- PolyCone
419 fQ.P0() = 0.0;
420 fQ.dP() = 360.0;
421 fQ.Z(0) = fI.ZAt(4)-fThSDDsupportPlate;
422 fQ.Rn(0) = 0.0;
423 fQ.Rx(0) = 0.5*fDscrewHead;
424 fQ.Z(1) = fI.ZAt(4)-fThScrewHeadHole;
425 fQ.Rn(1) = 0.0;
426 fQ.Rx(1) = 0.5*fDscrewHead;
427 fQ.Z(2) = fQ.ZAt(1);
428 fQ.Rn(2) = 0.0;
429 fQ.Rx(2) = 0.5*fDscrewShaft;
430 fQ.Z(3) = fQ.ZAt(2);
431 fQ.Rn(3) = 0.0;
432 fQ.Rx(3) = fQ.Rmax(2);
433 // air infront of bolt (stasolit Volume K) -- Tube
434 fR.Z() = 0.5*(fThickness-fThScrewHeadHole);
435 fR.Rn() = 0.0;
436 fR.Rx() = 0.5*fDscrewHead;
437 // air infront of bolt (carbon fiber volume I) -- Tube
438 fS.Z() = 0.5*fThickness;
439 fS.Rn() = 0.0;
440 fS.Rx() = fR.Rmax();
441 // SDD support plate, SSD side.
442 fT.dP() = 180.0*fWsddSupportPlate/(fRsddSupportPlate*TMath::Pi());
443 fT.P0() = fPhi0SDDsupports=90.0;
444 fT.Z(0) = fK.ZAt(2);
445 fT.Rn(0) = fI.Rmin(4);
446 fT.Rx(0) = fRsddSupportPlate;
447 fT.Z(1) = fI.ZAt(4) - fThSDDsupportPlate;
448 fT.Rn(1) = fT.Rmin(0);
449 fT.Rx(1) = fT.Rmax(0);
450 //
451 fU.dP() = fT.DPhi();
452 fU.P0() = fT.Phi0();
453 fU.Z(2) = fI.ZAt(4);
454 fU.Rn(2) = fT.Rmin(0);
455 fU.Rx(2) = fT.Rmax(0);
456 fU.Z(3) = fT.ZAt(0);
457 fU.Rn(3) = fU.Rmin(2);
458 fU.Rx(3) = fU.Rmax(2);
459 fU.Z(1) = fU.ZAt(2);
460 fU.Rn(1) = fI.Rmin(3);
461 fU.Rx(1) = fU.Rmax(3);
462 fU.Rx(0) = fT.Rmax(0);
463 fU.Rn(0) = fU.Rmax(0);
464 fU.Z(0) = Zfrom2MinPoints(fI,2,3,fU.Rmax(0));
465 // Debuging
466 Print(&cout);
aa9bc63b 467}
468//______________________________________________________________________
162acd47 469void AliITSGeometrySSDCone::CreateG3Geometry(const char *moth,
aa9bc63b 470 TVector3 &trans){
471 // Calls Geant 3 geometry inilization routines with the information
472 // stored in this class.
473 // Inputs:
474 // none.
475 // Outputs:
476 // none.
477 // Return:
478 // none.
479
162acd47 480 PolyCone(fA,fSSDcf);
481 PolyCone(fB,fSSDfs);
482 PolyCone(fC,fSSDfo);
483 Tube(fD,fSSDsw);
484 Tube(fE,fSSDsw);
485 PolyCone(fF,fSSDfo);
486 PolyCone(fG,fSSDcf);
487 PolyCone(fH,fSSDfo);
488 PolyCone(fI,fSSDcf);
489 PolyCone(fJ,fSSDfo);
490 PolyCone(fK,fSSDfs);
491 PolyCone(fL,fSSDfo);
492 PolyCone(fM,fSSDfo);
493 PolyCone(fN,fSSDfo);
494 PolyCone(fO,fSSDcf);
495 PolyCone(fP,fSSDfs);
496 PolyCone(fQ,fSSDfo);
497 Tube(fR,fSSDsw);
498 Tube(fS,fSSDsw);
499 PolyCone(fT,fSSDfo);
500 PolyCone(fU,fSSDfo);
501 return;
502}
503//______________________________________________________________________
504void AliITSGeometrySSDCone::PositionG3Geometry(AliITSBaseVolParams &moth,
505 Int_t cn,TVector3 &trans,
506 Int_t irot){
507 // Positions ths whole object at t with rotatin irot coply number cn
508 // into volume moth.
509 // Inputs:
510 // const AliITSBaseVolParams *moth Mother volume where this object
511 // is to be placed.
512 // Int_t cn Copy number.
513 // TVector3 &t Translation vector for this whole volume
514 // Int_t irot rotation matrix number to be applyed to this
515 // volume.
516 // Output:
517 // none.
518 // Return:
519 // none.
520 Int_t i,j,k,l,irotSpoaks,irotPost;
521 Double_t t;
522 Bool_t init=kFALSE;
523 TVector3 zero(0.0,0.0,0.0),v(0.0,0.0,0.0);
524
525 if(cn<=0) return;
526 if(cn==1) init=kTRUE;
527 Pos(fA,cn,moth,trans,0);
528 Pos(fI,cn,moth,trans,0);
887366e2 529 Pos(fG,fNspoaks*(cn-1)+1,moth,trans,0);
162acd47 530 irotSpoaks = irot;
887366e2 531 j = 1;
162acd47 532 for(i=fNspoaks*(cn-1)+2;i<fNspoaks*cn+1;i++){
533 ZMatrix(++irot,((Double_t)j)*360./((Double_t)fNspoaks));
887366e2 534 Pos(fG,i,moth,trans,irot);
162acd47 535 j++;
536 } // end for i
537 Pos(fO,fNposts*(cn-1)+1,moth,trans,0);
538 irotPost = irot;
887366e2 539 j = 1;
162acd47 540 for(i=fNposts*(cn-1)+2;i<fNposts*cn+1;i++){
541 ZMatrix(++irot,((Double_t)j)*360./((Double_t)fNposts));
542 Pos(fO,i,moth,trans,irot);
543 j++;
544 } // end for
545 if(!init) return;
546 // Inside volume A.
547 Pos(fB,1,fA,zero,0);
548 Pos(fC,1,fA,zero,0);
549 // Inside Volume B
aa9bc63b 550 k=l=0;
551 for(i=0;i<2;i++){ // position for ITS-TPC mounting brackets
552 for(j=0;j<2;j++){ // 2 screws per bracket
162acd47 553 fNcD++;
aa9bc63b 554 t = -5.0+10.0*((Double_t)j)+180.*((Double_t)i);
162acd47 555 v.SetX(fRoutHole*Sind(t));
556 v.SetY(fRoutHole*Cosd(t));
557 v.SetZ(fD.DzAt());
558 Pos(fD,fNcD,fB,v,0);
aa9bc63b 559 } // end for j
560 for(j=0;j<3;j++){ // 3 pins per bracket
162acd47 561 fNcE++;
aa9bc63b 562 t = -3.0+3.0*((Double_t)j)+180.*((Double_t)i);
162acd47 563 v.SetX(fRoutHole*Sind(t));
564 v.SetY(fRoutHole*Cosd(t));
565 v.SetZ(fE.DzAt());
566 Pos(fE,fNcE,fB,v,0);
aa9bc63b 567 } // end for j
568 } // end for i
569 for(i=0;i<2;i++){ // position for ITS-rail mounting brackets
570 for(j=0;j<4;j++){ // 4 screws per bracket
162acd47 571 Double_t a[4]={0.0,2.0,5.0,7.0}; // Relative angles.
572 fNcD++;
aa9bc63b 573 t = 90.0-a[j]+187.*((Double_t)i);
162acd47 574 v.SetX(fRoutHole*Sind(t));
575 v.SetY(fRoutHole*Cosd(t));
576 v.SetZ(fD.DzAt());
577 Pos(fD,fNcD,fB,v,0);
aa9bc63b 578 } // end for j
579 for(j=0;j<2;j++){ // 2 pins per bracket
162acd47 580 fNcE++;
aa9bc63b 581 t = 88+7.0*((Double_t)j)+184.*((Double_t)i);
162acd47 582 v.SetX(fRoutHole*Sind(t));
583 v.SetY(fRoutHole*Cosd(t));
584 v.SetZ(fE.DzAt());
585 Pos(fE,fNcE,fB,v,0);
aa9bc63b 586 } // end for j
587 } // end for i
162acd47 588 for(i=0;i<fNmounts;i++){ // mounting holes/screws for beam
589 // pipe support and SPD cone support (dump side,non-dump
590 // side has them to).
aa9bc63b 591 for(j=0;j<2;j++){ // 2 screws per bracket
162acd47 592 fNcD++;
593 t = 180.*20./(fRoutHole*TMath::Pi());
594 t = 45.0+((Double_t)(j-1))*t+90.*((Double_t)i);
595 v.SetX(fRoutHole*Sind(t));
596 v.SetY(fRoutHole*Cosd(t));
597 v.SetZ(fD.DzAt());
598 Pos(fD,fNcD,fB,v,0);
aa9bc63b 599 } // end for j
600 for(j=0;j<1;j++){ // 1 pins per bracket
162acd47 601 fNcE++;
aa9bc63b 602 t = 45.0+90.*((Double_t)i);
162acd47 603 v.SetX(fRoutHole*Sind(t));
604 v.SetY(fRoutHole*Cosd(t));
605 v.SetZ(fE.DzAt());
606 Pos(fE,fNcE,fB,v,0);
aa9bc63b 607 } // end for j
608 } // end for i
162acd47 609 Pos(fF,1,fA,zero,0);
610 Pos(fL,1,fI,zero,0);
611 for(i=1;i<fNspoaks;i++){
612 Pos(fF,i+1,fA,zero,irotSpoaks+i);
613 Pos(fL,i+1,fA,zero,irotSpoaks+i);
aa9bc63b 614 } // end for i
162acd47 615 Pos(fH,1,fG,zero,0);
616 Pos(fK,1,fI,zero,0);
617 Pos(fJ,1,fI,zero,0);
618 Pos(fP,1,fO,zero,0);
619 Pos(fM,1,fJ,zero,0);
620 Pos(fN,1,fI,zero,0);
621 for(i=1;i<fNposts;i++){
887366e2 622 Pos(fN,i+1,fI,zero,irotPost+i);
623 Pos(fM,i+1,fJ,zero,irotPost+i);
aa9bc63b 624 } // end for i
625 return;
626}
627//______________________________________________________________________
162acd47 628void AliITSGeometrySSDCone::CreateG3Materials(){
aa9bc63b 629 // Fills the Geant 3 banks with Material and Medium definisions.
630 // Inputs:
631 // none.
632 // Outputs:
633 // none.
634 // Returns:
635 // none.
162acd47 636 Int_t i;
637 Int_t Z[5],N[5];
638 Double_t W[5],dens;
aa9bc63b 639
162acd47 640 // epoxy
641 dens = 10.*GetA(1)+13.*GetA(6)+3.*GetA(8);
642 Z[0] = 1; W[0] = 10.*GetA(Z[0])/dens; // Hydrogen Content
643 Z[1] = 6; W[1] = 13.*GetA(Z[1])/dens; // Carbon Content
644 Z[2] = 8; W[2] = 3.*GetA(Z[2])/dens; // Oxegen
645 // Carbon fiber is about 64% carbon fiber and 36% epoxy by volume.
646 // Now need to add in the carbon fiber
647 W[0] *= 0.36*GetA(Z[0]);
648 W[1] = 0.36*W[1]*dens*GetA(Z[1]) + 0.64*GetA(Z[1]);
649 W[2] *= 0.36*GetA(Z[2]);
650 // Renormilize the weights
651 dens = 0.0;
652 for(i=0;i<3;i++){dens += W[i];}
653 for(i=0;i<3;i++){W[i] /= dens;}
654 dens = 1.7; // grams/cm^3 taken as density of G10 PDG book.
655 MixtureByWeight(fSSDcf,"Carbon Fiber for SSD support cone",Z,W,dens,3,0);
656 // epoxy
657 dens = 10.*GetA(1)+13.*GetA(6)+3.*GetA(8);
658 Z[0] = 1; W[0] = 10.*GetA(Z[0])/dens; // Hydrogen Content
659 Z[1] = 6; W[1] = 13.*GetA(Z[1])/dens; // Carbon Content
660 Z[2] = 8; W[2] = 3.*GetA(Z[2])/dens; // Oxegen
661 Z[3] = 14;W[3] = 0.0; // no Silicon in epoxy.
662 // glass fiber is about 64% carbon fiber and 36% epoxy by volume.
663 // Now need to add in the glass fiber
664 W[0] *= 0.36*GetA(Z[0]);
665 W[1] *= 0.36*GetA(Z[1]);
666 W[2] = 0.36*W[2]*dens*GetA(Z[2]) + 0.64*2.0*GetA(Z[2]);
667 W[3] = 0.64*GetA(Z[3]); // Si
668 // Renormilize the weights
669 dens = 0.0;
670 for(i=0;i<4;i++){dens += W[i];}
671 for(i=0;i<4;i++){W[i] /= dens;}
672 dens = 1.7; // grams/cm^3 taken as density of G10 PDG book.
673 MixtureByWeight(fSSDfs,"Inserto stealite 4411w for SSD support cone",
674 Z,W,dens,4,0);
675 // Rohacell 51 C14 H10 N2 O6 from Flavio Tosello
676 // http://cesweb.grantadesign.com/demo/index.do
677 Z[0] = 1; N[0] = 10; // Hydrogen Content
678 Z[1] = 6; N[1] = 14; // Carbon Content
679 Z[2] = 7; N[2] = 2; // Nitrogen Content
680 Z[3] = 8; N[3] = 6; // Oxigen Content
681 dens = 0.0513; // grams/cm^3 From Flavio Tosello
682 // http://www.emkayplatics.co.uk/roh51.html
683 MixtureByNumber(fSSDfo,"Foam core (Rohacell 51) for SSD support cone",
684 Z,N,dens,4,0);
685 // Stainless steel. Temperary values.
686 Z[0] = 6; W[0] = 0.5; // Carbon Content
687 Z[1] = 25; W[1] = 0.5; // Iron Content
688 dens = 7.87; // Grams/cm^3 density of iron used.
689 MixtureByWeight(fSSDsw,"Stainless steal screw, pin, and stud material",
690 Z,W,dens,2,0);
aa9bc63b 691}
692//______________________________________________________________________
693void AliITSGeometrySSDCone::BuildDisplayGeometry(){
694 // Fill Root geometry banks for fast simple ITS simulation event
695 // display. See Display.C, and related code, for more details.
696 // Inputs:
697 // none.
698 // Outputs:
699 // none.
700 // Return:
701 // none.
702
703 // No need to display ITS cones.
704}
162acd47 705//______________________________________________________________________
706void AliITSGeometrySSDCone::Print(ostream *os){
707 // Prints out the data kept in this class
708 // Inputs:
709 // ostream *os pointer to the output stream
710 // Outputs:
711 // none.
712 // Return:
713 // none.
714
715 *os << "Object AliITSGeometrySSDCone" << endl;
716 *os << " Object fA" << endl << fA << endl;
717 *os << " Object fB" << endl << fB << endl;
718 *os << " Object fC" << endl << fC << endl;
719 *os << " Object fD" << endl << fD << endl;
720 *os << " Object fE" << endl << fE << endl;
721 *os << " Object fF" << endl << fF << endl;
722 *os << " Object fG" << endl << fG << endl;
723 *os << " Object fH" << endl << fH << endl;
724 *os << " Object fI" << endl << fI << endl;
725 *os << " Object fJ" << endl << fJ << endl;
726 *os << " Object fK" << endl << fK << endl;
727 *os << " Object fL" << endl << fL << endl;
728 *os << " Object fM" << endl << fM << endl;
729 *os << " Object fN" << endl << fN << endl;
730 *os << " Object fO" << endl << fO << endl;
731 *os << " Object fP" << endl << fP << endl;
732 *os << " Object fQ" << endl << fQ << endl;
733 *os << " Object fR" << endl << fR << endl;
734 *os << " Object fS" << endl << fS << endl;
735 *os << " Object fT" << endl << fT << endl;
736 *os << " Object fU" << endl << fU << endl;
737 return;
738}
739//______________________________________________________________________
740void AliITSGeometrySSDCone::Read(istream *is){
741 // Read in data written with Print above.
742 // Inputs:
743 // istream *is Input stream pointer
744 // Output:
745 // none.
746 // Return:
747 // none.
748 char s[50];
749
750 is->getline(s,49);
751 is->getline(s,49);
752 *is >> fA;
753 is->getline(s,49);
754 *is >> fB;
755 is->getline(s,49);
756 *is >> fC;
757 is->getline(s,49);
758 *is >> fD;
759 is->getline(s,49);
760 *is >> fE;
761 is->getline(s,49);
762 *is >> fF;
763 is->getline(s,49);
764 *is >> fG;
765 is->getline(s,49);
766 *is >> fH;
767 is->getline(s,49);
768 *is >> fI;
769 is->getline(s,49);
770 *is >> fJ;
771 is->getline(s,49);
772 *is >> fK;
773 is->getline(s,49);
774 *is >> fL;
775 is->getline(s,49);
776 *is >> fM;
777 is->getline(s,49);
778 *is >> fN;
779 is->getline(s,49);
780 *is >> fO;
781 is->getline(s,49);
782 *is >> fP;
783 is->getline(s,49);
784 *is >> fQ;
785 is->getline(s,49);
786 *is >> fR;
787 is->getline(s,49);
788 *is >> fS;
789 is->getline(s,49);
790 *is >> fT;
791 is->getline(s,49);
792 *is >> fU;
793 return;
794}
795//______________________________________________________________________
796ostream &operator<<(ostream &os,AliITSGeometrySSDCone &s){
797 // Operator << for C++ like output of AliITSGeometrySSDCone class.
798 // Inputs:
799 // ostream &os The output stream
800 // AliITSGeometrySSDCone &s The class to be outputed
801 // Outputs:
802 // none.
803 // Return:
804 // ostream &os The address of the output stream
805
806 s.Print(&os);
807 return os;
808}
809//______________________________________________________________________
810istream &operator>>(istream &is,AliITSGeometrySSDCone &s){
811 // Operator >> for C++ like input of AliITSGeometrySSDCone class.
812 // Inputs:
813 // istream &is The input stream
814 // AliITSGeometrySSDCone &s The class to be inputed
815 // Outputs:
816 // none.
817 // Return:
818 // istream &is The address of the input stream
819
820 s.Read(&is);
821 return is;
822}