STRUCT/AliBODY.cxx

   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 /* $Id$ */
  17
  18 ///////////////////////////////////////////////////////////////////////////////
  19 //                                                                           //
  20 //  Alice external volume                                                    //
  21 //  This class contains the description of the Alice external volume         //
  22 //                                                                           //
  23 //Begin_Html
  24 /*
  25 <img src="picts/AliBODYClass.gif">
  26 </pre>
  27 <br clear=left>
  28 <font size=+2 color=red>
  29 <p>The responsible person for this module is
  30 <a href="mailto:andreas.morsch@cern.ch">Andreas Morsch</a>.
  31 </font>
  32 <pre>
  33 */
  34 //End_Html
  35 //                                                                           //
  36 //                                                                           //
  37 ///////////////////////////////////////////////////////////////////////////////
  38
  39 #include <TGeoGlobalMagField.h>
  40 #include <TVirtualMC.h>
  41 #include <TArrayI.h>
  42
  43 #include "AliBODY.h"
  44 #include "AliMagF.h"
  45 #include "AliRun.h"
  46
  47 ClassImp(AliBODY)
  48
  49 //_____________________________________________________________________________
  50 AliBODY::AliBODY()
  51 {
  52   //
  53   // Default constructor
  54   //
  55 }
  56
  57 //_____________________________________________________________________________
  58 AliBODY::AliBODY(const char *name, const char *title)
  59        : AliModule(name,title)
  60 {
  61   //
  62   // Standard constructor of the Alice external volume
  63   //
  64   //PH  SetMarkerColor(7);
  65   //PH  SetMarkerStyle(2);
  66   //PH  SetMarkerSize(0.4);
  67 }
  68
  69 //_____________________________________________________________________________
  70 void AliBODY::CreateGeometry()
  71 {
  72   //
  73   // Create the geometry of the Alice external body
  74   //
  75   //Begin_Html
  76   /*
  77     <img src="picts/AliBODYTree.gif">
  78   */
  79   //End_Html
  80   //
  81   // If the ZDC is present we have an asymmetric box
  82   // made by a four sides polygone
  83   //
  84   //Begin_Html
  85   /*
  86     <img src="picts/AliBODYLarge.gif">
  87   */
  88   //End_Html
  89   //
  90   // If the ZDC is not present make just a BOX
  91   //
  92   //Begin_Html
  93   /*
  94     <img src="picts/AliBODYSmall.gif">
  95   */
  96   //End_Html
  97
  98   Float_t dALIC[10];
  99   Int_t *idtmed = fIdtmed->GetArray()+1;
 100   //
 101   if(gAlice->GetModule("ZDC")) {
 102     //
 103     // If the ZDC is present we have an asymmetric box
 104     // made by a four sides polygone
 105     //
 106     dALIC[0]=45;
 107     dALIC[1]=360;
 108     dALIC[2]=4;
 109     dALIC[3]=2;
 110
 111     dALIC[4]=-15000;
 112     dALIC[5]=0;
 113     dALIC[6]=2500;
 114
 115     dALIC[7]=15000;
 116     dALIC[8]=0;
 117     dALIC[9]=2500;
 118     gMC->Gsvolu("ALIC","PGON",idtmed[1],dALIC,10);
 119   } else if ( gAlice->GetModule("ACORDE")) {
 120     //
 121     // If the Cosmic Ray Trigger  is present we need a large box
 122     //
 123     //
 124     dALIC[0]=13000.;
 125     dALIC[1]=5000.;
 126     dALIC[2]=13000.;
 127     gMC->Gsvolu("ALIC","BOX ",idtmed[1],dALIC,3);
 128
 129   } else {
 130     //
 131     // If the ZDC and ACORDE are not present make just a BOX
 132     //
 133     dALIC[0]=2000;
 134     dALIC[1]=2000;
 135     dALIC[2]=3000;
 136     gMC->Gsvolu("ALIC","BOX ",idtmed[1],dALIC,3);
 137   }
 138 }
 139
 140 //_____________________________________________________________________________
 141 void AliBODY::CreateMaterials()
 142 {
 143 // Create materials and media
 144   Int_t isxfld = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Integ();
 145   Float_t sxmgmx = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Max();
 146
 147   // AIR
 148
 149   Float_t aAir[4]={12.0107,14.0067,15.9994,39.948};
 150   Float_t zAir[4]={6.,7.,8.,18.};
 151   Float_t wAir[4]={0.000124,0.755267,0.231781,0.012827};
 152   Float_t dAir = 1.20479E-3 * 960./1014.;
 153   Float_t dAir1 = 1.20479E-10;
 154   //
 155   AliMixture(1,"Vacuum  $",aAir,zAir,dAir1,4,wAir);
 156   AliMixture(2,"Air     $",aAir,zAir,dAir,4,wAir);
 157   AliMaterial(3,"Be      $", 9.01,4 ,1.848   ,35.30,36.70);
 158   //
 159   AliMedium(1,"Vacuum  $",1,0,isxfld,sxmgmx,10,1,0.1,0.1,10);
 160   AliMedium(2,"Air     $",2,0,isxfld,sxmgmx,10,-1,-0.1,0.1 ,-10);
 161   AliMedium(3,"Be pipe $",3,0,isxfld,sxmgmx,10,0.1,0.1,0.01,0.01);
 162 }
 163