1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
18 //////////////////////////////////////////////////////////////////////////////
20 // Inner Traking System version 11 //
21 // This class contains the base procedures for the Inner Tracking System //
23 // Authors: R. Barbera //
27 // NOTE: THIS IS THE SYMMETRIC PPR geometry of the ITS. //
28 // THIS WILL NOT WORK //
29 // with the geometry or module classes or any analysis classes. You are //
30 // strongly encouraged to uses AliITSv5. //
32 //////////////////////////////////////////////////////////////////////////////
33 // See AliITSv11::StepManager().
34 // General C/C++ includes
37 // General Root includes
38 #include <Riostream.h>
41 #include <TFile.h> // only required for Tracking function?
42 #include <TObjArray.h>
43 #include <TClonesArray.h>
44 #include <TLorentzVector.h>
45 #include <TObjString.h>
46 // Root Geometry includes
47 #include <TGeoManager.h>
48 #include <TGeoVolume.h>
51 #include <TGeoTube.h> // contaings TGeoTubeSeg
53 #include <TGeoCompositeShape.h>
54 #include <TGeoMatrix.h>
56 #include <TGeoMaterial.h>
57 #include <TGeoMedium.h>
58 #include "AliITSv11GeometrySupport.h"
59 // General AliRoot includes
63 // ITS specific includes
64 #include "AliITShit.h"
65 #include "AliITSgeom.h"
66 #include "AliITSgeomSPD.h"
67 #include "AliITSgeomSDD.h"
68 #include "AliITSgeomSSD.h"
69 #include "AliITSDetType.h"
70 #include "AliITSresponseSPD.h"
71 #include "AliITSresponseSDD.h"
72 #include "AliITSresponseSSD.h"
73 #include "AliITSsegmentationSPD.h"
74 #include "AliITSsegmentationSDD.h"
75 #include "AliITSsegmentationSSD.h"
76 #include "AliITSsimulationSPD.h"
77 #include "AliITSsimulationSDD.h"
78 #include "AliITSsimulationSSD.h"
79 #include "AliITSClusterFinderSPD.h"
80 #include "AliITSClusterFinderSDD.h"
81 #include "AliITSClusterFinderSSD.h"
82 #include "AliITSBaseGeometry.h"
83 #include "AliITSv11.h"
84 #include "AliITSv11GeometrySupport.h"
89 Some temparary #define's used untill ROOT has addoppted the proper
90 Getter in it's classes.
91 These Below are for TGeoPcon functions.
94 //______________________________________________________________________
95 AliITSv11::AliITSv11() : AliITS(),
107 // Standard default constructor for the ITS version 11.
113 // A default constructed AliITSv11 class.
119 //______________________________________________________________________
120 AliITSv11::AliITSv11(const char *title) : AliITS("ITS", title),
132 // Standard constructor for the ITS version 11.
134 // const char *title The title of for this geometry.
138 // A Standard constructed AliITSv11 class.
140 //______________________________________________________________________
141 AliITSv11::~AliITSv11() {
142 // Standard destructor for the ITS version 11.
150 // if(fITSV!=0) delete fITSV;
151 // if(fcS!=0) delete fcS;
152 // if(fcD!=0) delete fcD;
154 //______________________________________________________________________
155 AliITSv11::AliITSv11(const AliITSv11 &source) : AliITS(source){
156 // Copy Constructor for ITS version 11.
158 // AliITSv11 &source class to be copied from.
164 if(&source == this) return;
165 Error("Copy Constructor","Not allowed to copy AliITSv11");
168 //______________________________________________________________________
169 AliITSv11& AliITSv11::operator=(const AliITSv11 &source){
170 // Assignment operator for the ITS version 11.
172 // AliITSv11 &source class to be copied from.
178 if(&source == this) return *this;
179 Error("= operator","Not allowed to copy AliITSv11");
182 //______________________________________________________________________
183 void AliITSv11::BuildGeometry(){
184 // This routine defines and Creates the geometry for version 11 of
185 // the ITS for use in the simulation display routines. This is a
186 // very simplified geometry for speed of viewing.
193 //TVector3 t(0.0,0.0,0.0);
195 //if(fITSV==0) fITSV = new AliITSGeometryITSV(this,"ALIC");
196 //if(fcS==0) fcS = new AliITSGeometrySSDCone(this,t,"TSV",1);
198 //fcS->BuildDisplayGeometry();
200 //______________________________________________________________________
201 void AliITSv11::CreateGeometry(){
202 // This routine defines and Creates the geometry for version 11 of
203 // the ITS. The geometry is used by the particle trasport routines,
204 // and therefore, is very detailed.
211 TVector3 t(0.0,0.0,0.0);
212 const Double_t kcm = 1.0;
214 TGeoManager *mgr = gGeoManager;
215 TGeoVolume *vALIC = mgr->GetTopVolume();
217 TGeoPcon *sITS = new TGeoPcon("ITS Top Volume, Daughter of ALIC",
219 // DefineSection(section number, Z, Rmin, Rmax).
220 sITS->DefineSection(0,-300.0*kcm,0.01*kcm,50.0*kcm);
221 sITS->DefineSection(1,+300.0*kcm,0.01*kcm,50.0*kcm);
222 TGeoVolume *vITS = new TGeoVolume("ITSV",sITS,0);
223 mgr->AddVolume(vITS);
224 vITS->SetVisibility(kFALSE);
225 vALIC->AddNode(vITS,1,0);
227 AliITSv11GeometrySupport *sup = new AliITSv11GeometrySupport(GetDebug());
229 sup->SPDThermalSheald(vITS);
232 sup->ServicesCableSupport(vITS);
234 //______________________________________________________________________
235 void AliITSv11::CreateMaterials(){
236 // Create ITS materials
237 // This function defines the default materials used in the Geant
238 // Monte Carlo simulations for the geometries AliITSv11.
239 // In general it is automatically replaced by
247 //TGeoMaterial *C = new TGeoMaterial("ITSCarbon",12.0,6.0,2.265);
248 TGeoMaterial *matAl = new TGeoMaterial("ITSAluminum",26.981539,13.0,2.07);
249 TGeoMixture *matCfiber = new TGeoMixture("ITSCarbonFiber",6,1.930);
250 TGeoMixture *matRohacell = new TGeoMixture("ITSRohacell",6,1.930);
251 TGeoMixture *matStaselite = new TGeoMixture("ITSStaselite4411w",6,1.930);
252 TGeoMixture *matAir = new TGeoMixture("ITSAir",6,1.205*1.E-3);
253 TGeoMixture *matStainless = new TGeoMixture("ITSStainless",6,1.930);
255 Double_t medSPDcone[20];
256 medSPDcone[0] = 1.0; // imat
257 medSPDcone[1] = 0.0; // isvol
258 medSPDcone[2] = gAlice->Field()->Integ(); // ifield
259 medSPDcone[3] = gAlice->Field()->Max(); // fieldm
260 medSPDcone[4] = 1.0; // tmaxfd [degrees]
261 medSPDcone[5] = 1.0; // stemax [cm]
262 medSPDcone[6] = 0.5; // deemax [fraction]
263 medSPDcone[7] = 1.0E-3; // epsil [cm]
264 medSPDcone[8] = 0.0; // stmin [cm]
265 new TGeoMedium("ITSspdCarbonFiber",1,matCfiber,medSPDcone);
266 medSPDcone[0] += 1.0;
267 new TGeoMedium("ITSspdStaselite4411w",2,matStaselite,medSPDcone);
268 medSPDcone[0] += 1.0;
269 new TGeoMedium("ITSspdRohacell50A",3,matRohacell,medSPDcone);
270 medSPDcone[0] += 1.0;
271 new TGeoMedium("ITSspdStainlesSteal",4,matStainless,medSPDcone);
272 medSPDcone[0] += 1.0;
273 new TGeoMedium("ITSspdAir",5,matAir,medSPDcone);
274 medSPDcone[0] += 1.0;
275 new TGeoMedium("ITSspdAl",6,matAl,medSPDcone);
277 Double_t medSSDcone[20];
278 medSSDcone[0] = 1.0; // imat
279 medSSDcone[1] = 0.0; // isvol
280 medSSDcone[2] = gAlice->Field()->Integ(); // ifield
281 medSSDcone[3] = gAlice->Field()->Max(); // fieldm
282 medSSDcone[4] = 1.0; // tmaxfd [degrees]
283 medSSDcone[5] = 1.0; // stemax [cm]
284 medSSDcone[6] = 0.5; // deemax [fraction]
285 medSSDcone[7] = 1.0E-3; // epsil [cm]
286 medSSDcone[8] = 0.0; // stmin [cm]
287 new TGeoMedium("ITSssdCarbonFiber",1,matCfiber,medSSDcone);
288 medSSDcone[0] += 1.0;
289 new TGeoMedium("ITSssdStaselite4411w",2,matStaselite,medSSDcone);
290 medSSDcone[0] += 1.0;
291 new TGeoMedium("ITSssdRohacell50A",3,matRohacell,medSSDcone);
292 medSSDcone[0] += 1.0;
293 new TGeoMedium("ITSssdStainlesSteal",4,matStainless,medSSDcone);
294 medSSDcone[0] += 1.0;
295 new TGeoMedium("ITSssdAir",5,matAir,medSSDcone);
296 medSSDcone[0] += 1.0;
297 new TGeoMedium("ITSssdAl",6,matAl,medSSDcone);
299 //______________________________________________________________________
300 void AliITSv11::InitAliITSgeom(){
301 // Based on the geometry tree defined in Geant 3.21, this
302 // routine initilizes the Class AliITSgeom from the Geant 3.21 ITS
303 // geometry sturture.
311 //______________________________________________________________________
312 void AliITSv11::Init(){
313 // Initialise the ITS after it has been created.
321 //______________________________________________________________________
322 void AliITSv11::SetDefaults(){
323 // Sets the default segmentation, response, digit and raw cluster
324 // classes to be used. These defaults can be overwritten in the
325 // macros that do these later steps. Defaults are give hear for the
334 //______________________________________________________________________
335 void AliITSv11::DrawModule(){
336 // Draw a standard set of shaded view of the ITS version 11.
344 //______________________________________________________________________
345 void AliITSv11::StepManager(){
346 // Called for every step in the ITS, then calles the AliITShit class
347 // creator with the information to be recoreded about that hit.
348 // The value of the macro ALIITSPRINTGEOM if set to 1 will allow the
349 // printing of information to a file which can be used to create a .det
350 // file read in by the routine CreateGeometry(). If set to 0 or any other
351 // value except 1, the default behavior, then no such file is created nor
352 // is the extra variables and the like used in the printing allocated.