[u/mrichter/AliRoot.git] / STRUCT / AliSHIL.cxx

///////////////////////////////////////////////////////////////////////////////
//                                                                           //
//  Muon Shield Class                                                        //
//  This class contains a description of the muon shield                     //
//                                                                           //
//Begin_Html
/*
<img src="gif/AliSHILClass.gif">
*/
//End_Html
//                                                                           //
//                                                                           //
///////////////////////////////////////////////////////////////////////////////

#include "AliSHIL.h"
#include "AliRun.h"
#include "AliConst.h"

ClassImp(AliSHIL)
 
//_____________________________________________________________________________
AliSHIL::AliSHIL()
{
  //
  // Default constructor for muon shield
  //
}
 
//_____________________________________________________________________________
AliSHIL::AliSHIL(const char *name, const char *title)
  : AliModule(name,title)
{
  //
  // Standard constructor for muon shield
  //
  SetMarkerColor(7);
  SetMarkerStyle(2);
  SetMarkerSize(0.4);
}
 
//_____________________________________________________________________________
void AliSHIL::CreateGeometry()
{
  //
  // Build muon shield geometry
  //
  // Origin N.Van Eijndhoven
  //
  //Begin_Html
  /*
    <img src="gif/AliSHIL.gif">
  */
  //End_Html
  //Begin_Html
  /*
    <img src="gif/AliSHILTree.gif">
  */
  //End_Html

  Float_t r_pb, cpar[5], parm[12], tpar[3], zmag_out,
    abs_c, abs_l, r_abs, pcpar[12];
  Float_t dr, dz, 
    zs, theta_open;
  Float_t cz1, cz2;
  Float_t dzcoch1, dzcoch2, acc_min, dzs, zcone_e, zmag_in,
    z_close, z_l3, shl1, shl4;
    
  AliMC* pMC = AliMC::GetMC();
  
  Int_t *idtmed = gAlice->Idtmed();
  
  //abs_d   = 90.;  // DEFINES DRIFT LENGTH 
  //z_nose  = 102.;
  //z_cone  = 285.;
  //theta1  = 24.;  // 1. angle defining the front absorber 
  //theta2  = 5.;   // 2. angle defining the front absorbe 
  //acc_max = 9.;   // ANGLE POLAIRE MAXIMUM 
  acc_min = 2.;   // ANGLE POLAIRE MINIMUM DE DETECTION 
  abs_l   = 503.;
  //d_steel = 1.;   // THICKNESS OF STEEL SUPPORT 
  //d_poly  = 7.5;
  //d_pb    = 2.5;
  //abs_cc  = 315.; // DEFINES LENGTH OF CARBON 
  abs_c   = 358.;
  //abs_s   = 150.; // DEFINES W-SHIELD LENGTH 
  //abs_n   = 80.;  // START OF NOSE 
  r_abs   = 4.;
  r_pb    = .1;
  //epsilon = .01;
  //theta_r = 3.;
  //d_rear  = 35.;
  theta_open = .75;
  
  z_l3      = 700.;
  zmag_in   = 725.;
  zmag_out  = 1225.;
  //zfil_in   = 1471.;
  //zfil_out  = 1591.;
  //zcon_in   = 1900.;
  //zcon_out  = 2e3;
  zcone_e   = 859.0875;
  //spec_l    = 1800.;
  //zplug_in  = 1780.;
  //zplug_out = 1900.;
  
  //     Chamber position 
  //      CZ1=515.5 
  cz1 = 511.;
  cz2 = 686.;
  //cz3 = 971.;
  //cz4 = 1245.;
  //cz5 = 1445.;
  //cz6 = 1610.;
  //cz7 = 1710.;
  
  
  //  the mother of all shields 
  
  parm[0] = 0.;
  parm[1] = 360.;
  parm[2] = 3.;
  parm[3] = abs_l;
  parm[4] = 0.;
  parm[5] = abs_l * TMath::Tan(acc_min * kDegrad);
  parm[6] = zcone_e;
  parm[7] = 0.;
  parm[8] = 30.;
  parm[9] = 1900.;
  parm[10] = 0.;
  parm[11] = 30.;
  pMC->Gsvolu("YMOT", "PCON", idtmed[1715], parm, 12);
  
  //       beam shield ouside absorber inside l3 
  
  shl1    = (z_l3 - abs_l) / 2.;
  cpar[0] = shl1;
  cpar[1] = 0.;
  cpar[2] = abs_l * TMath::Tan(acc_min * kDegrad);
  cpar[3] = 0.;
  cpar[4] = z_l3 * TMath::Tan(acc_min * kDegrad);
  pMC->Gsvolu("YMS1", "CONE", idtmed[1759], cpar, 5);
  
  //       OUTSIDE STEEL TUBE 
  // Pb/W 
  cpar[1] = cpar[2] - 4.;
  cpar[3] = cpar[4] - 4.;
  pMC->Gsvolu("YSH1", "CONE", idtmed[1718], cpar, 5);
  pMC->Gspos("YSH1", 1, "YMS1", 0., 0., 0., 0, "ONLY");
  
  //      COCHES FOR CHAMBERS 
  dzcoch1 = cz1 + 4. - (abs_l + shl1);
  dzcoch2 = cz2 + 4. - (abs_l + shl1);
  
  //       AIR 
  cpar[0] = 7.5;
  dr      = cpar[0] * 2. * TMath::Tan(acc_min * kDegrad);
  cpar[2] = (cz1 + 4. - cpar[0]) * TMath::Tan(acc_min * kDegrad);
  cpar[1] = cpar[2] - 3.;
  cpar[3] = cpar[1] + dr;
  cpar[4] = cpar[2] + dr;
  pMC->Gsvolu("YAC1", "CONE", idtmed[1714], cpar, 5);
  pMC->Gspos("YAC1", 1, "YMS1", 0., 0., dzcoch1, 0, "ONLY");
  cpar[2] = (cz2 + 4. - cpar[0]) * TMath::Tan(acc_min * kDegrad);
  cpar[1] = cpar[2] - 3.;
  cpar[3] = cpar[1] + dr;
  cpar[4] = cpar[2] + dr;
  pMC->Gsvolu("YAC2", "CONE", idtmed[1714], cpar, 5);
  pMC->Gspos("YAC2", 1, "YMS1", 0., 0., dzcoch2, 0, "ONLY");
  
  //       STEEL 
  cpar[0] = (cz1 + 4. + 20. - abs_l) / 2.;
  dr      = cpar[0] * 2. * TMath::Tan(acc_min * kDegrad);
  //      CPAR(3)=ABS_L*TAN(kDegrad*ACC_MIN)-3. 
  cpar[2] = abs_l * TMath::Tan(acc_min * kDegrad) - 4.;
  cpar[1] = cpar[2] - 3.;
  cpar[3] = cpar[1] + dr;
  cpar[4] = cpar[2] + dr;
  dzcoch1 = abs_l + cpar[0] - (abs_l + shl1);
  pMC->Gsvolu("YSC1", "CONE", idtmed[1718], cpar, 5);
  pMC->Gspos("YSC1", 1, "YMS1", 0., 0., dzcoch1, 0, "ONLY");
  
  cpar[0] = 16.;
  dr      = cpar[0] * 2. * TMath::Tan(acc_min * kDegrad);
  //      CPAR(3)=(CZ2+4.-CPAR(1))*TAN(kDegrad*ACC_MIN)-3. 
  cpar[2] = (cz2 + 4. - cpar[0]) * TMath::Tan(acc_min * kDegrad) - 4.;
  cpar[1] = cpar[2] - 3.;
  cpar[3] = cpar[1] + dr;
  cpar[4] = cpar[2] + dr;
  pMC->Gsvolu("YSC2", "CONE", idtmed[1718], cpar, 5);
  pMC->Gspos("YSC2", 1, "YMS1", -4., 0., dzcoch2, 0, "ONLY");
  
  //       ... beam pipe 
  cpar[0] = shl1;
  cpar[1] = 0.;
  cpar[2] = r_abs + (abs_l - abs_c) * TMath::Tan(theta_open * kDegrad);
  cpar[3] = 0.;
  cpar[4] = cpar[2] + shl1 * 2. * TMath::Tan(theta_open * kDegrad);
  pMC->Gsvolu("YMB1", "CONE", idtmed[1755], cpar, 5);
  
  cpar[0]  = shl1;
  cpar[2] += -.8;
  cpar[1]  = cpar[2] - .2;
  cpar[4] += -.8;
  cpar[3]  = cpar[4] - .2;
  pMC->Gsvolu("YBS1", "CONE", idtmed[1749], cpar, 5);
  pMC->Gspos("YBS1", 1, "YMB1", 0., 0., 0., 0, "ONLY");
  
  
  pMC->Gspos("YMB1", 1, "YMS1", 0., 0., 0., 0, "ONLY");
  dz = shl1 + abs_l;
  pMC->Gspos("YMS1", 1, "YMOT", 0., 0., dz, 0, "ONLY");
  
  //       BEAM SHIELD OUTSIDE L3 
  
  //     L3->DIPOLE 
  cpar[0] = (zmag_in - z_l3) / 2.;
  cpar[1] = 0.;
  cpar[2] = z_l3 * TMath::Tan(acc_min * kDegrad);
  cpar[3] = 0.;
  cpar[4] = zmag_in * TMath::Tan(acc_min * kDegrad);
  pMC->Gsvolu("YMS2", "CONE", idtmed[1759], cpar, 5);
  
  //       OUTSIDE STEEL TUBE 
  
  // Pb/W 
  cpar[1] = cpar[2] - 4.;
  cpar[3] = cpar[4] - 4.;
  pMC->Gsvolu("YSH2", "CONE", idtmed[1718], cpar, 5);
  pMC->Gspos("YSH2", 1, "YMS2", 0., 0., 0., 0, "ONLY");
  
  //       ... beam pipe 

  zs      = z_l3 - abs_c;
  cpar[1] = 0.;
  cpar[2] = r_abs + zs * TMath::Tan(theta_open * kDegrad);
  cpar[3] = 0.;
  cpar[4] = cpar[2] + cpar[0] * 2. * TMath::Tan(theta_open * kDegrad);
  pMC->Gsvolu("YMB2", "CONE", idtmed[1755], cpar, 5);
  
  cpar[2] += -.8;
  cpar[1]  = cpar[2] - .2;
  cpar[4] += -.8;
  cpar[3]  = cpar[4] - .2;
  pMC->Gsvolu("YBS2", "CONE", idtmed[1749], cpar, 5);
  pMC->Gspos("YBS2", 1, "YMB2", 0., 0., 0., 0, "ONLY");
  
  
  pMC->Gspos("YMB2", 1, "YMS2", 0., 0., 0., 0, "ONLY");
  dz = cpar[0] + z_l3;
  pMC->Gspos("YMS2", 1, "YMOT", 0., 0., dz, 0, "ONLY");
  pcpar[0] = 0.;
  pcpar[1] = 360.;
  pcpar[2] = 3.;
  pcpar[3] = 0.;
  pcpar[4] = 0.;
  pcpar[5] = zmag_in * TMath::Tan(acc_min * kDegrad);
  pcpar[6] = zcone_e - zmag_in;
  pcpar[7] = 0.;
  pcpar[8] = 30.;
  pcpar[9] = zmag_out - zmag_in;
  pcpar[10] = 0.;
  pcpar[11] = 30.;
  pMC->Gsvolu("YMS3", "PCON", idtmed[1759], pcpar, 12);
  
  //       OUTSIDE STEEL TUBE 
  
  // Pb/W 
  pcpar[4]  = pcpar[5] - 4.;
  pcpar[7]  = pcpar[8] - 4.;
  pcpar[10] = pcpar[11] - 4.;
  pMC->Gsvolu("YSH3", "PCON", idtmed[1718], pcpar, 12);
  pMC->Gspos("YSH3", 1, "YMS3", 0., 0., 0., 0, "MANY");
  
  //       ... beam pipe up to closing cone 
  
  zs      = zmag_in - abs_c;
  z_close = 804.;
  
  cpar[0] = (z_close - zmag_in) / 2.;
  cpar[1] = 0.;
  cpar[2] = r_abs + zs * TMath::Tan(theta_open * kDegrad);
  cpar[3] = 0.;
  cpar[4] = cpar[2] + cpar[0] * 2. * TMath::Tan(theta_open * kDegrad);
  pMC->Gsvolu("YMB3", "CONE", idtmed[1755], cpar, 5);
  
  cpar[2] += -.8;
  cpar[1]  = cpar[2] - .2;
  cpar[4] += -.8;
  cpar[3]  = cpar[4] - .2;
  pMC->Gsvolu("YBS3", "CONE", idtmed[1749], cpar, 5);
  pMC->Gspos("YBS3", 1, "YMB3", 0., 0., 0.,      0, "ONLY");
  pMC->Gspos("YMB3", 1, "YMS3", 0., 0., cpar[0], 0, "ONLY");
  
  //       .closing cone 
  
  dzs = cpar[0] * 2.;
  zs  = z_close - abs_c;
  
  cpar[0] = 25.;
  cpar[1] = 0.;
  cpar[2] = r_abs + zs * TMath::Tan(theta_open * kDegrad);
  cpar[3] = 0.;
  cpar[4] = r_abs;
  pMC->Gsvolu("YMB5", "CONE", idtmed[1755], cpar, 5);
  
  cpar[2] += -.8;
  cpar[1]  = cpar[2] - .2;
  cpar[4] += -.8;
  cpar[3]  = cpar[4] - .2;
  pMC->Gsvolu("YBS5", "CONE", idtmed[1749], cpar, 5);
  pMC->Gspos("YBS5", 1, "YMB5", 0., 0., 0., 0, "ONLY");
  
  dzs += cpar[0];
  pMC->Gspos("YMB5", 1, "YMS3", 0., 0., dzs, 0, "ONLY");
  dzs += cpar[0];
  
  //       OUTSIDE PB-TUBE 
  
  tpar[0] = 30. - r_pb - 4.;
  tpar[1] = 30. - r_pb;
  tpar[2] = (zmag_out - z_close - 50.) / 2.;
  dzs    += tpar[2];
  pMC->Gsvolu("YNW1", "TUBE", idtmed[1752], tpar, 3);
  pMC->Gspos("YNW1", 1, "YMS3", 0., 0., dzs, 0, "MANY");
  
  //       constant beam pipe up to end of magnet 
  
  tpar[0] = 0.;
  tpar[1] = r_abs;
  tpar[2] = (zmag_out - z_close - 50.) / 2.;
  pMC->Gsvolu("YMB6", "TUBE", idtmed[1755], tpar, 3);
  
  tpar[1] = r_abs - .8;
  tpar[0] = tpar[1] - .2;
  pMC->Gsvolu("YBS6", "TUBE", idtmed[1749], tpar, 3);
  pMC->Gspos("YBS6", 1, "YMB6", 0., 0., 0.,  0, "ONLY");
  pMC->Gspos("YMB6", 1, "YMS3", 0., 0., dzs, 0, "ONLY");
  
  dz = zmag_in;
  pMC->Gspos("YMS3", 1, "YMOT", 0., 0., dz,  0, "ONLY");
  
  //       DIPOLE-> 
  
  tpar[0] = 0.;
  tpar[1] = 30.;
  tpar[2] = (1900. - zmag_out) / 2.;
  shl4 = tpar[2];
  pMC->Gsvolu("YMS4", "TUBE", idtmed[1759], tpar, 3);
  //      CALL GSVOLU('YMS4','TUBE',IDTMED(1752),TPAR,3,IL3) ! W 
  
  //       OUTSIDE STEEL TUBE 
  
  // Pb/W 
  tpar[0] = tpar[1] - 4.;
  pMC->Gsvolu("YSH4", "TUBE", idtmed[1718], tpar, 3);
  pMC->Gspos("YSH4", 1, "YMS4", 0., 0., 0., 0, "MANY");
  
  //       OUTSIDE PB-TUBE 
  
  tpar[0] = 30. - r_pb - 4.;
  tpar[1] = 30. - r_pb;
  pMC->Gsvolu("YNW2", "TUBE", idtmed[1752], tpar, 3);
  pMC->Gspos("YNW2", 1, "YMS4", 0., 0., 0., 0, "MANY");
  
  //       ... beam pipe 
  
  tpar[0] = 0.;
  tpar[1] = r_abs;
  tpar[2] = shl4;
  pMC->Gsvolu("YMB4", "TUBE", idtmed[1755], tpar, 3);
  
  tpar[2] = shl4;
  tpar[1] = r_abs - .8;
  tpar[0] = tpar[1] - .2;
  pMC->Gsvolu("YBS4", "TUBE", idtmed[1749], tpar, 3);
  pMC->Gspos("YBS4", 1, "YMB4", 0., 0., 0., 0, "ONLY");
  
  
  dz = zmag_out + shl4;
  pMC->Gspos("YMB4", 1, "YMS4", 0., 0., 0., 0, "ONLY");
  pMC->Gspos("YMS4", 1, "YMOT", 0., 0., dz, 0, "ONLY");
  pMC->Gspos("YMOT", 1, "ALIC", 0., 0., 0., 0, "ONLY");
}

//_____________________________________________________________________________
void AliSHIL::CreateMaterials()
{
  //
  // Defines materials for the muon shield
  //
  // Origin N. Van Eijndhoven
  //
  
  Int_t   ISXFLD = gAlice->Field()->Integ();
  Float_t SXMGMX = gAlice->Field()->Max();
  
  Float_t asteel[4] = { 55.847,51.9961,58.6934,28.0855 };
  Float_t zsteel[4] = { 26.,24.,28.,14. };
  Float_t wsteel[4] = { .715,.18,.1,.005 };
  Float_t apbw[2]   = { 207.2,183.85 };
  Float_t zpbw[2]   = { 82.,74. };
  Float_t wpbw[2]   = { .5,.5 };
  
  Float_t epsil, stmin, tmaxfd, deemax, stemax;
  
  //     STEEL 
  
  
  //     LEAD/TUNGSTEN MIXTURE 
  
  
  // --- Define the various materials for GEANT --- 
  //     Aluminum 
  AliMaterial(9,  "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
  AliMaterial(29, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
  AliMaterial(49, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
  
  //     Iron 
  AliMaterial(10, "IRON$     ", 55.85, 26., 7.87, 1.76, 17.1);
  AliMaterial(30, "IRON$     ", 55.85, 26., 7.87, 1.76, 17.1);
  AliMaterial(50, "IRON$     ", 55.85, 26., 7.87, 1.76, 17.1);
  
  //     Tungsten 
  AliMaterial(12, "TUNGSTEN$ ", 183.85, 74., 19.3, .35, 10.3);
  AliMaterial(32, "TUNGSTEN$ ", 183.85, 74., 19.3, .35, 10.3);
  AliMaterial(52, "TUNGSTEN$ ", 183.85, 74., 19.3, .35, 10.3);
  
  //     Lead 
  AliMaterial(13, "LEAD$     ", 207.19, 82., 11.35, .56, 18.5);
  AliMaterial(33, "LEAD$     ", 207.19, 82., 11.35, .56, 18.5);
  AliMaterial(53, "LEAD$     ", 207.19, 82., 11.35, .56, 18.5);
  
  //     Air 
  AliMaterial(15, "AIR$      ", 14.61, 7.3, .001205, 30423.24, 67500);
  AliMaterial(35, "AIR$      ", 14.61, 7.3, .001205, 30423.24, 67500);
  AliMaterial(55, "AIR$      ", 14.61, 7.3, .001205, 30423.24, 67500);
  
  //     Vacuum 
  AliMaterial(16, "VACUUM$ ", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
  AliMaterial(36, "VACUUM$ ", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
  AliMaterial(56, "VACUUM$ ", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
  
  //     stainless Steel 
  AliMixture(19, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel);
  AliMixture(39, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel);
  AliMixture(59, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel);
  
  //     Lead/Tungsten 
  AliMixture(20, "LEAD/TUNGSTEN$", apbw, zpbw, 15.325, 2, wpbw);
  AliMixture(40, "LEAD/TUNGSTEN$", apbw, zpbw, 15.325, 2, wpbw);
  AliMixture(60, "LEAD/TUNGSTEN$", apbw, zpbw, 15.325, 2, wpbw);
  
  // **************** 
  //     Defines tracking media parameters. 
  //     Les valeurs sont commentees pour laisser le defaut 
  //     a GEANT (version 3-21, page CONS200), f.m. 
  epsil  = .001;  // Tracking precision, 
  stemax = -1.;   // Maximum displacement for multiple scat 
  tmaxfd = -20.;  // Maximum angle due to field deflection 
  deemax = -.3;   // Maximum fractional energy loss, DLS 
  stmin  = -.8;
  // *************** 
  
  //    Aluminum 
  AliMedium(1709, "ALU_C0          ", 9, 0,  ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
  AliMedium(1729, "ALU_C1          ", 29, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
  AliMedium(1749, "ALU_C2          ", 49, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
  
  //    Iron 
  AliMedium(1710, "FE_C0           ", 10, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
  AliMedium(1730, "FE_C1           ", 30, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
  AliMedium(1750, "FE_C2           ", 50, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
  
  //    Tungsten 
  AliMedium(1712, "W_C0            ", 12, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
  AliMedium(1732, "W_C1            ", 32, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
  AliMedium(1752, "W_C2            ", 52, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
  
  //    Lead 
  AliMedium(1713, "PB_C0           ", 13, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
  AliMedium(1733, "PB_C1           ", 33, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
  AliMedium(1753, "PB_C2           ", 53, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
  
  //    Air 
  AliMedium(1715, "AIR_C0          ", 15, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
  AliMedium(1735, "AIR_C1          ", 35, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
  AliMedium(1755, "AIR_C2          ", 55, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
  
  //    Vacuum 
  AliMedium(1716, "VA_C0           ", 16, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
  AliMedium(1736, "VA_C1           ", 36, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
  AliMedium(1756, "VA_C2           ", 56, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
  
  //    Steel 
  AliMedium(1719, "ST_C0           ", 19, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
  AliMedium(1739, "ST_C1           ", 39, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
  AliMedium(1759, "ST_C3           ", 59, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
  
  //    Lead/Tungsten 
  AliMedium(1720, "PB/W0           ", 20, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
  AliMedium(1740, "PB/W1           ", 40, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
  AliMedium(1760, "PB/W3           ", 60, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
}

//_____________________________________________________________________________
void AliSHIL::DrawModule () 
{
  //
  // Draw a shaded view of the muon shield
  //

  AliMC* pMC = AliMC::GetMC();
  
  // Set everything unseen
  pMC->Gsatt("*", "seen", -1);
  // 
  // Set ALIC mother transparent
  pMC->Gsatt("ALIC","SEEN",0);
  //
  // Set the volumes visible
  pMC->Gsatt("YMOT","seen",1);
  pMC->Gsatt("YMS1","seen",1);
  pMC->Gsatt("YSH1","seen",1);
  pMC->Gsatt("YAC1","seen",1);
  pMC->Gsatt("YAC2","seen",1);
  pMC->Gsatt("YSC1","seen",1);
  pMC->Gsatt("YSC2","seen",1);
  pMC->Gsatt("YMB1","seen",1);
  pMC->Gsatt("YBS1","seen",1);
  pMC->Gsatt("YMS2","seen",1);
  pMC->Gsatt("YSH2","seen",1);
  pMC->Gsatt("YMB2","seen",1);
  pMC->Gsatt("YBS2","seen",1);
  pMC->Gsatt("YMS3","seen",1);
  pMC->Gsatt("YSH3","seen",1);
  pMC->Gsatt("YMB3","seen",1);
  pMC->Gsatt("YBS3","seen",1);
  pMC->Gsatt("YMB5","seen",1);
  pMC->Gsatt("YBS5","seen",1);
  pMC->Gsatt("YNW1","seen",1);
  pMC->Gsatt("YMB6","seen",1);
  pMC->Gsatt("YBS6","seen",1);
  pMC->Gsatt("YMS4","seen",1);
  pMC->Gsatt("YSH4","seen",1);
  pMC->Gsatt("YNW2","seen",1);
  pMC->Gsatt("YMB4","seen",1);
  pMC->Gsatt("YBS4","seen",1);
  //
  pMC->Gdopt("hide", "on");
  pMC->Gdopt("shad", "on");
  pMC->Gsatt("*", "fill", 7);
  pMC->SetClipBox(".");
  pMC->SetClipBox("*", 0, 3000, -3000, 3000, -6000, 6000);
  pMC->DefaultRange();
  pMC->Gdraw("alic", 30, 30, 0, 26.5, 18, .03, .03);
  pMC->Gdhead(1111, "Muon Shield");
  pMC->Gdman(16, 6, "MAN");
}

//_____________________________________________________________________________
void AliSHIL::Init()
{
  //
  // Initialise the muon shield after it has been built
  //
  Int_t i;
  //
  printf("\n");
  for(i=0;i<35;i++) printf("*");
  printf(" SHIL_INIT ");
  for(i=0;i<35;i++) printf("*");
  printf("\n");
  //
  // Here the ABSO initialisation code (if any!)
  for(i=0;i<80;i++) printf("*");
  printf("\n");
}
Commit	Line	Data
fe4da5cc	1	///////////////////////////////////////////////////////////////////////////////
	2	// //
	3	// Muon Shield Class //
	4	// This class contains a description of the muon shield //
	5	// //
	6	//Begin_Html
	7	/*
	8	<img src="gif/AliSHILClass.gif">
	9	*/
	10	//End_Html
	11	// //
	12	// //
	13	///////////////////////////////////////////////////////////////////////////////
	14
	15	#include "AliSHIL.h"
fe4da5cc	16	#include "AliRun.h"
fe4da5cc	17	#include "AliConst.h"
	18
	19	ClassImp(AliSHIL)
	20
	21	//_____________________________________________________________________________
	22	AliSHIL::AliSHIL()
	23	{
	24	//
	25	// Default constructor for muon shield
	26	//
	27	}
	28
	29	//_____________________________________________________________________________
	30	AliSHIL::AliSHIL(const char name, const char title)
b8032157	31	: AliModule(name,title)
fe4da5cc	32	{
	33	//
	34	// Standard constructor for muon shield
	35	//
	36	SetMarkerColor(7);
	37	SetMarkerStyle(2);
	38	SetMarkerSize(0.4);
	39	}
	40
fe4da5cc	41	//_____________________________________________________________________________
	42	void AliSHIL::CreateGeometry()
	43	{
	44	//
	45	// Build muon shield geometry
	46	//
	47	// Origin N.Van Eijndhoven
	48	//
	49	//Begin_Html
	50	/*
	51	<img src="gif/AliSHIL.gif">
	52	*/
	53	//End_Html
	54	//Begin_Html
	55	/*
	56	<img src="gif/AliSHILTree.gif">
	57	*/
	58	//End_Html
	59
	60	Float_t r_pb, cpar[5], parm[12], tpar[3], zmag_out,
	61	abs_c, abs_l, r_abs, pcpar[12];
	62	Float_t dr, dz,
	63	zs, theta_open;
	64	Float_t cz1, cz2;
	65	Float_t dzcoch1, dzcoch2, acc_min, dzs, zcone_e, zmag_in,
	66	z_close, z_l3, shl1, shl4;
	67
	68	AliMC* pMC = AliMC::GetMC();
	69
	70	Int_t *idtmed = gAlice->Idtmed();
	71
	72	//abs_d = 90.; // DEFINES DRIFT LENGTH
	73	//z_nose = 102.;
	74	//z_cone = 285.;
	75	//theta1 = 24.; // 1. angle defining the front absorber
	76	//theta2 = 5.; // 2. angle defining the front absorbe
	77	//acc_max = 9.; // ANGLE POLAIRE MAXIMUM
	78	acc_min = 2.; // ANGLE POLAIRE MINIMUM DE DETECTION
	79	abs_l = 503.;
	80	//d_steel = 1.; // THICKNESS OF STEEL SUPPORT
	81	//d_poly = 7.5;
	82	//d_pb = 2.5;
	83	//abs_cc = 315.; // DEFINES LENGTH OF CARBON
	84	abs_c = 358.;
	85	//abs_s = 150.; // DEFINES W-SHIELD LENGTH
	86	//abs_n = 80.; // START OF NOSE
	87	r_abs = 4.;
	88	r_pb = .1;
	89	//epsilon = .01;
	90	//theta_r = 3.;
	91	//d_rear = 35.;
	92	theta_open = .75;
	93
	94	z_l3 = 700.;
	95	zmag_in = 725.;
	96	zmag_out = 1225.;
	97	//zfil_in = 1471.;
	98	//zfil_out = 1591.;
	99	//zcon_in = 1900.;
	100	//zcon_out = 2e3;
	101	zcone_e = 859.0875;
	102	//spec_l = 1800.;
	103	//zplug_in = 1780.;
	104	//zplug_out = 1900.;
105
106	// Chamber position
107	// CZ1=515.5
108	cz1 = 511.;
109	cz2 = 686.;
110	//cz3 = 971.;
111	//cz4 = 1245.;
112	//cz5 = 1445.;
113	//cz6 = 1610.;
114	//cz7 = 1710.;
115
116
117	// the mother of all shields
118
119	parm[0] = 0.;
120	parm[1] = 360.;
121	parm[2] = 3.;
122	parm[3] = abs_l;
123	parm[4] = 0.;
124	parm[5] = abs_l * TMath::Tan(acc_min * kDegrad);
125	parm[6] = zcone_e;
126	parm[7] = 0.;
127	parm[8] = 30.;
128	parm[9] = 1900.;
129	parm[10] = 0.;
130	parm[11] = 30.;
131	pMC->Gsvolu("YMOT", "PCON", idtmed[1715], parm, 12);
132
133	// beam shield ouside absorber inside l3
134
135	shl1 = (z_l3 - abs_l) / 2.;
136	cpar[0] = shl1;
137	cpar[1] = 0.;
138	cpar[2] = abs_l * TMath::Tan(acc_min * kDegrad);
139	cpar[3] = 0.;
140	cpar[4] = z_l3 * TMath::Tan(acc_min * kDegrad);
141	pMC->Gsvolu("YMS1", "CONE", idtmed[1759], cpar, 5);
142
143	// OUTSIDE STEEL TUBE
144	// Pb/W
145	cpar[1] = cpar[2] - 4.;
146	cpar[3] = cpar[4] - 4.;
147	pMC->Gsvolu("YSH1", "CONE", idtmed[1718], cpar, 5);
148	pMC->Gspos("YSH1", 1, "YMS1", 0., 0., 0., 0, "ONLY");
149
150	// COCHES FOR CHAMBERS
151	dzcoch1 = cz1 + 4. - (abs_l + shl1);
152	dzcoch2 = cz2 + 4. - (abs_l + shl1);
153
154	// AIR
155	cpar[0] = 7.5;
156	dr = cpar[0] * 2. * TMath::Tan(acc_min * kDegrad);
157	cpar[2] = (cz1 + 4. - cpar[0]) * TMath::Tan(acc_min * kDegrad);
158	cpar[1] = cpar[2] - 3.;
159	cpar[3] = cpar[1] + dr;
160	cpar[4] = cpar[2] + dr;
161	pMC->Gsvolu("YAC1", "CONE", idtmed[1714], cpar, 5);
162	pMC->Gspos("YAC1", 1, "YMS1", 0., 0., dzcoch1, 0, "ONLY");
163	cpar[2] = (cz2 + 4. - cpar[0]) * TMath::Tan(acc_min * kDegrad);
164	cpar[1] = cpar[2] - 3.;
165	cpar[3] = cpar[1] + dr;
166	cpar[4] = cpar[2] + dr;
167	pMC->Gsvolu("YAC2", "CONE", idtmed[1714], cpar, 5);
168	pMC->Gspos("YAC2", 1, "YMS1", 0., 0., dzcoch2, 0, "ONLY");
169
170	// STEEL
171	cpar[0] = (cz1 + 4. + 20. - abs_l) / 2.;
172	dr = cpar[0] * 2. * TMath::Tan(acc_min * kDegrad);
173	// CPAR(3)=ABS_LTAN(kDegradACC_MIN)-3.
174	cpar[2] = abs_l * TMath::Tan(acc_min * kDegrad) - 4.;
175	cpar[1] = cpar[2] - 3.;
176	cpar[3] = cpar[1] + dr;
177	cpar[4] = cpar[2] + dr;
178	dzcoch1 = abs_l + cpar[0] - (abs_l + shl1);
179	pMC->Gsvolu("YSC1", "CONE", idtmed[1718], cpar, 5);
180	pMC->Gspos("YSC1", 1, "YMS1", 0., 0., dzcoch1, 0, "ONLY");
181
182	cpar[0] = 16.;
183	dr = cpar[0] * 2. * TMath::Tan(acc_min * kDegrad);
184	// CPAR(3)=(CZ2+4.-CPAR(1))TAN(kDegradACC_MIN)-3.
185	cpar[2] = (cz2 + 4. - cpar[0]) * TMath::Tan(acc_min * kDegrad) - 4.;
186	cpar[1] = cpar[2] - 3.;
187	cpar[3] = cpar[1] + dr;
188	cpar[4] = cpar[2] + dr;
189	pMC->Gsvolu("YSC2", "CONE", idtmed[1718], cpar, 5);
190	pMC->Gspos("YSC2", 1, "YMS1", -4., 0., dzcoch2, 0, "ONLY");
191
192	// ... beam pipe
193	cpar[0] = shl1;
194	cpar[1] = 0.;
195	cpar[2] = r_abs + (abs_l - abs_c) * TMath::Tan(theta_open * kDegrad);
196	cpar[3] = 0.;
197	cpar[4] = cpar[2] + shl1 * 2. * TMath::Tan(theta_open * kDegrad);
198	pMC->Gsvolu("YMB1", "CONE", idtmed[1755], cpar, 5);
199
200	cpar[0] = shl1;
201	cpar[2] += -.8;
202	cpar[1] = cpar[2] - .2;
203	cpar[4] += -.8;
204	cpar[3] = cpar[4] - .2;
205	pMC->Gsvolu("YBS1", "CONE", idtmed[1749], cpar, 5);
206	pMC->Gspos("YBS1", 1, "YMB1", 0., 0., 0., 0, "ONLY");
207
208
209	pMC->Gspos("YMB1", 1, "YMS1", 0., 0., 0., 0, "ONLY");
210	dz = shl1 + abs_l;
211	pMC->Gspos("YMS1", 1, "YMOT", 0., 0., dz, 0, "ONLY");
212
213	// BEAM SHIELD OUTSIDE L3
214
215	// L3->DIPOLE
216	cpar[0] = (zmag_in - z_l3) / 2.;
217	cpar[1] = 0.;
218	cpar[2] = z_l3 * TMath::Tan(acc_min * kDegrad);
219	cpar[3] = 0.;
220	cpar[4] = zmag_in * TMath::Tan(acc_min * kDegrad);
221	pMC->Gsvolu("YMS2", "CONE", idtmed[1759], cpar, 5);
222
223	// OUTSIDE STEEL TUBE
224
225	// Pb/W
226	cpar[1] = cpar[2] - 4.;
227	cpar[3] = cpar[4] - 4.;
228	pMC->Gsvolu("YSH2", "CONE", idtmed[1718], cpar, 5);
229	pMC->Gspos("YSH2", 1, "YMS2", 0., 0., 0., 0, "ONLY");
230
231	// ... beam pipe
232
233	zs = z_l3 - abs_c;
234	cpar[1] = 0.;
235	cpar[2] = r_abs + zs * TMath::Tan(theta_open * kDegrad);
236	cpar[3] = 0.;
237	cpar[4] = cpar[2] + cpar[0] * 2. * TMath::Tan(theta_open * kDegrad);
238	pMC->Gsvolu("YMB2", "CONE", idtmed[1755], cpar, 5);
239
240	cpar[2] += -.8;
241	cpar[1] = cpar[2] - .2;
242	cpar[4] += -.8;
243	cpar[3] = cpar[4] - .2;
244	pMC->Gsvolu("YBS2", "CONE", idtmed[1749], cpar, 5);
245	pMC->Gspos("YBS2", 1, "YMB2", 0., 0., 0., 0, "ONLY");
246
247
248	pMC->Gspos("YMB2", 1, "YMS2", 0., 0., 0., 0, "ONLY");
249	dz = cpar[0] + z_l3;
250	pMC->Gspos("YMS2", 1, "YMOT", 0., 0., dz, 0, "ONLY");
251	pcpar[0] = 0.;
252	pcpar[1] = 360.;
253	pcpar[2] = 3.;
254	pcpar[3] = 0.;
255	pcpar[4] = 0.;
256	pcpar[5] = zmag_in * TMath::Tan(acc_min * kDegrad);
257	pcpar[6] = zcone_e - zmag_in;
258	pcpar[7] = 0.;
259	pcpar[8] = 30.;
260	pcpar[9] = zmag_out - zmag_in;
261	pcpar[10] = 0.;
262	pcpar[11] = 30.;
263	pMC->Gsvolu("YMS3", "PCON", idtmed[1759], pcpar, 12);
264
265	// OUTSIDE STEEL TUBE
266
267	// Pb/W
268	pcpar[4] = pcpar[5] - 4.;
269	pcpar[7] = pcpar[8] - 4.;
270	pcpar[10] = pcpar[11] - 4.;
271	pMC->Gsvolu("YSH3", "PCON", idtmed[1718], pcpar, 12);
272	pMC->Gspos("YSH3", 1, "YMS3", 0., 0., 0., 0, "MANY");
273
274	// ... beam pipe up to closing cone
275
276	zs = zmag_in - abs_c;
277	z_close = 804.;
278
279	cpar[0] = (z_close - zmag_in) / 2.;
280	cpar[1] = 0.;
281	cpar[2] = r_abs + zs * TMath::Tan(theta_open * kDegrad);
282	cpar[3] = 0.;
283	cpar[4] = cpar[2] + cpar[0] * 2. * TMath::Tan(theta_open * kDegrad);
284	pMC->Gsvolu("YMB3", "CONE", idtmed[1755], cpar, 5);
285
286	cpar[2] += -.8;
287	cpar[1] = cpar[2] - .2;
288	cpar[4] += -.8;
289	cpar[3] = cpar[4] - .2;
290	pMC->Gsvolu("YBS3", "CONE", idtmed[1749], cpar, 5);
291	pMC->Gspos("YBS3", 1, "YMB3", 0., 0., 0., 0, "ONLY");
292	pMC->Gspos("YMB3", 1, "YMS3", 0., 0., cpar[0], 0, "ONLY");
293
294	// .closing cone
295
296	dzs = cpar[0] * 2.;
297	zs = z_close - abs_c;
298
299	cpar[0] = 25.;
300	cpar[1] = 0.;
301	cpar[2] = r_abs + zs * TMath::Tan(theta_open * kDegrad);
302	cpar[3] = 0.;
303	cpar[4] = r_abs;
304	pMC->Gsvolu("YMB5", "CONE", idtmed[1755], cpar, 5);
305
306	cpar[2] += -.8;
307	cpar[1] = cpar[2] - .2;
308	cpar[4] += -.8;
309	cpar[3] = cpar[4] - .2;
310	pMC->Gsvolu("YBS5", "CONE", idtmed[1749], cpar, 5);
311	pMC->Gspos("YBS5", 1, "YMB5", 0., 0., 0., 0, "ONLY");
312
313	dzs += cpar[0];
314	pMC->Gspos("YMB5", 1, "YMS3", 0., 0., dzs, 0, "ONLY");
315	dzs += cpar[0];
316
317	// OUTSIDE PB-TUBE
318
319	tpar[0] = 30. - r_pb - 4.;
320	tpar[1] = 30. - r_pb;
321	tpar[2] = (zmag_out - z_close - 50.) / 2.;
322	dzs += tpar[2];
323	pMC->Gsvolu("YNW1", "TUBE", idtmed[1752], tpar, 3);
324	pMC->Gspos("YNW1", 1, "YMS3", 0., 0., dzs, 0, "MANY");
325
326	// constant beam pipe up to end of magnet
327
328	tpar[0] = 0.;
329	tpar[1] = r_abs;
330	tpar[2] = (zmag_out - z_close - 50.) / 2.;
331	pMC->Gsvolu("YMB6", "TUBE", idtmed[1755], tpar, 3);
332
333	tpar[1] = r_abs - .8;
334	tpar[0] = tpar[1] - .2;
335	pMC->Gsvolu("YBS6", "TUBE", idtmed[1749], tpar, 3);
336	pMC->Gspos("YBS6", 1, "YMB6", 0., 0., 0., 0, "ONLY");
337	pMC->Gspos("YMB6", 1, "YMS3", 0., 0., dzs, 0, "ONLY");
338
339	dz = zmag_in;
340	pMC->Gspos("YMS3", 1, "YMOT", 0., 0., dz, 0, "ONLY");
341
342	// DIPOLE->
343
344	tpar[0] = 0.;
345	tpar[1] = 30.;
346	tpar[2] = (1900. - zmag_out) / 2.;
347	shl4 = tpar[2];
348	pMC->Gsvolu("YMS4", "TUBE", idtmed[1759], tpar, 3);
349	// CALL GSVOLU('YMS4','TUBE',IDTMED(1752),TPAR,3,IL3) ! W
350
351	// OUTSIDE STEEL TUBE
352
353	// Pb/W
354	tpar[0] = tpar[1] - 4.;
355	pMC->Gsvolu("YSH4", "TUBE", idtmed[1718], tpar, 3);
356	pMC->Gspos("YSH4", 1, "YMS4", 0., 0., 0., 0, "MANY");
357
358	// OUTSIDE PB-TUBE
359
360	tpar[0] = 30. - r_pb - 4.;
361	tpar[1] = 30. - r_pb;
362	pMC->Gsvolu("YNW2", "TUBE", idtmed[1752], tpar, 3);
363	pMC->Gspos("YNW2", 1, "YMS4", 0., 0., 0., 0, "MANY");
364
365	// ... beam pipe
366
367	tpar[0] = 0.;
368	tpar[1] = r_abs;
369	tpar[2] = shl4;
370	pMC->Gsvolu("YMB4", "TUBE", idtmed[1755], tpar, 3);
371
372	tpar[2] = shl4;
373	tpar[1] = r_abs - .8;
374	tpar[0] = tpar[1] - .2;
375	pMC->Gsvolu("YBS4", "TUBE", idtmed[1749], tpar, 3);
376	pMC->Gspos("YBS4", 1, "YMB4", 0., 0., 0., 0, "ONLY");
377
378
379	dz = zmag_out + shl4;
380	pMC->Gspos("YMB4", 1, "YMS4", 0., 0., 0., 0, "ONLY");
381	pMC->Gspos("YMS4", 1, "YMOT", 0., 0., dz, 0, "ONLY");
382	pMC->Gspos("YMOT", 1, "ALIC", 0., 0., 0., 0, "ONLY");
383	}
384
385	//_____________________________________________________________________________
386	void AliSHIL::CreateMaterials()
387	{
388	//
389	// Defines materials for the muon shield
390	//
391	// Origin N. Van Eijndhoven
392	//
393
394	Int_t ISXFLD = gAlice->Field()->Integ();
395	Float_t SXMGMX = gAlice->Field()->Max();
396
397	Float_t asteel[4] = { 55.847,51.9961,58.6934,28.0855 };
398	Float_t zsteel[4] = { 26.,24.,28.,14. };
399	Float_t wsteel[4] = { .715,.18,.1,.005 };
400	Float_t apbw[2] = { 207.2,183.85 };
401	Float_t zpbw[2] = { 82.,74. };
402	Float_t wpbw[2] = { .5,.5 };
403
404	Float_t epsil, stmin, tmaxfd, deemax, stemax;
405
406	// STEEL
407
408
409	// LEAD/TUNGSTEN MIXTURE
410
411
412	// --- Define the various materials for GEANT ---
413	// Aluminum
414	AliMaterial(9, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
415	AliMaterial(29, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
416	AliMaterial(49, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
417
418	// Iron
419	AliMaterial(10, "IRON$ ", 55.85, 26., 7.87, 1.76, 17.1);
420	AliMaterial(30, "IRON$ ", 55.85, 26., 7.87, 1.76, 17.1);
421	AliMaterial(50, "IRON$ ", 55.85, 26., 7.87, 1.76, 17.1);
422
423	// Tungsten
424	AliMaterial(12, "TUNGSTEN$ ", 183.85, 74., 19.3, .35, 10.3);
425	AliMaterial(32, "TUNGSTEN$ ", 183.85, 74., 19.3, .35, 10.3);
426	AliMaterial(52, "TUNGSTEN$ ", 183.85, 74., 19.3, .35, 10.3);
427
428	// Lead
429	AliMaterial(13, "LEAD$ ", 207.19, 82., 11.35, .56, 18.5);
430	AliMaterial(33, "LEAD$ ", 207.19, 82., 11.35, .56, 18.5);
431	AliMaterial(53, "LEAD$ ", 207.19, 82., 11.35, .56, 18.5);
432
433	// Air
434	AliMaterial(15, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500);
435	AliMaterial(35, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500);
436	AliMaterial(55, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500);
437
438	// Vacuum
439	AliMaterial(16, "VACUUM$ ", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
440	AliMaterial(36, "VACUUM$ ", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
441	AliMaterial(56, "VACUUM$ ", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
442
443	// stainless Steel
444	AliMixture(19, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel);
445	AliMixture(39, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel);
446	AliMixture(59, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel);
447
448	// Lead/Tungsten
449	AliMixture(20, "LEAD/TUNGSTEN$", apbw, zpbw, 15.325, 2, wpbw);
450	AliMixture(40, "LEAD/TUNGSTEN$", apbw, zpbw, 15.325, 2, wpbw);
451	AliMixture(60, "LEAD/TUNGSTEN$", apbw, zpbw, 15.325, 2, wpbw);
452
453	// ****************
454	// Defines tracking media parameters.
455	// Les valeurs sont commentees pour laisser le defaut
456	// a GEANT (version 3-21, page CONS200), f.m.
457	epsil = .001; // Tracking precision,
458	stemax = -1.; // Maximum displacement for multiple scat
459	tmaxfd = -20.; // Maximum angle due to field deflection
460	deemax = -.3; // Maximum fractional energy loss, DLS
461	stmin = -.8;
462	// ***************
463
464	// Aluminum
465	AliMedium(1709, "ALU_C0 ", 9, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
466	AliMedium(1729, "ALU_C1 ", 29, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
467	AliMedium(1749, "ALU_C2 ", 49, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
468
469	// Iron
470	AliMedium(1710, "FE_C0 ", 10, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
471	AliMedium(1730, "FE_C1 ", 30, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
472	AliMedium(1750, "FE_C2 ", 50, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
473
474	// Tungsten
475	AliMedium(1712, "W_C0 ", 12, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
476	AliMedium(1732, "W_C1 ", 32, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
477	AliMedium(1752, "W_C2 ", 52, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
478
479	// Lead
480	AliMedium(1713, "PB_C0 ", 13, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
481	AliMedium(1733, "PB_C1 ", 33, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
482	AliMedium(1753, "PB_C2 ", 53, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
483
484	// Air
485	AliMedium(1715, "AIR_C0 ", 15, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
486	AliMedium(1735, "AIR_C1 ", 35, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
487	AliMedium(1755, "AIR_C2 ", 55, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
488
489	// Vacuum
490	AliMedium(1716, "VA_C0 ", 16, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
491	AliMedium(1736, "VA_C1 ", 36, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
492	AliMedium(1756, "VA_C2 ", 56, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
493
494	// Steel
495	AliMedium(1719, "ST_C0 ", 19, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
496	AliMedium(1739, "ST_C1 ", 39, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
497	AliMedium(1759, "ST_C3 ", 59, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
498
499	// Lead/Tungsten
500	AliMedium(1720, "PB/W0 ", 20, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
501	AliMedium(1740, "PB/W1 ", 40, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
502	AliMedium(1760, "PB/W3 ", 60, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
503	}
504
505	//_____________________________________________________________________________
b8032157	506	void AliSHIL::DrawModule ()
fe4da5cc	507	{
	508	//
	509	// Draw a shaded view of the muon shield
	510	//
	511
	512	AliMC* pMC = AliMC::GetMC();
	513
	514	// Set everything unseen
	515	pMC->Gsatt("*", "seen", -1);
	516	//
	517	// Set ALIC mother transparent
	518	pMC->Gsatt("ALIC","SEEN",0);
	519	//
	520	// Set the volumes visible
	521	pMC->Gsatt("YMOT","seen",1);
	522	pMC->Gsatt("YMS1","seen",1);
	523	pMC->Gsatt("YSH1","seen",1);
	524	pMC->Gsatt("YAC1","seen",1);
	525	pMC->Gsatt("YAC2","seen",1);
	526	pMC->Gsatt("YSC1","seen",1);
	527	pMC->Gsatt("YSC2","seen",1);
	528	pMC->Gsatt("YMB1","seen",1);
	529	pMC->Gsatt("YBS1","seen",1);
	530	pMC->Gsatt("YMS2","seen",1);
	531	pMC->Gsatt("YSH2","seen",1);
	532	pMC->Gsatt("YMB2","seen",1);
	533	pMC->Gsatt("YBS2","seen",1);
	534	pMC->Gsatt("YMS3","seen",1);
	535	pMC->Gsatt("YSH3","seen",1);
	536	pMC->Gsatt("YMB3","seen",1);
	537	pMC->Gsatt("YBS3","seen",1);
	538	pMC->Gsatt("YMB5","seen",1);
	539	pMC->Gsatt("YBS5","seen",1);
	540	pMC->Gsatt("YNW1","seen",1);
	541	pMC->Gsatt("YMB6","seen",1);
	542	pMC->Gsatt("YBS6","seen",1);
	543	pMC->Gsatt("YMS4","seen",1);
	544	pMC->Gsatt("YSH4","seen",1);
	545	pMC->Gsatt("YNW2","seen",1);
	546	pMC->Gsatt("YMB4","seen",1);
	547	pMC->Gsatt("YBS4","seen",1);
	548	//
	549	pMC->Gdopt("hide", "on");
	550	pMC->Gdopt("shad", "on");
	551	pMC->Gsatt("*", "fill", 7);
	552	pMC->SetClipBox(".");
	553	pMC->SetClipBox("*", 0, 3000, -3000, 3000, -6000, 6000);
	554	pMC->DefaultRange();
	555	pMC->Gdraw("alic", 30, 30, 0, 26.5, 18, .03, .03);
	556	pMC->Gdhead(1111, "Muon Shield");
	557	pMC->Gdman(16, 6, "MAN");
	558	}
	559
	560	//_____________________________________________________________________________
	561	void AliSHIL::Init()
	562	{
	563	//
	564	// Initialise the muon shield after it has been built
	565	//
	566	Int_t i;
	567	//
	568	printf("\n");
	569	for(i=0;i<35;i++) printf("*");
	570	printf(" SHIL_INIT ");
571	for(i=0;i<35;i++) printf("*");
572	printf("\n");
573	//
574	// Here the ABSO initialisation code (if any!)
575	for(i=0;i<80;i++) printf("*");
576	printf("\n");
577	}
578
579