[u/mrichter/AliRoot.git] / TRD / AliTRD.cxx

///////////////////////////////////////////////////////////////////////////////
//                                                                           //
//  Transition Radiation Detector                                            //
//  This class contains the basic functions for the Transition Radiation     //
//  detector. Functions specific to one particular geometry are              //
//  contained in the derived classes                                         //
//                                                                           //
//Begin_Html
/*
<img src="gif/AliTRDClass.gif">
*/
//End_Html
//                                                                           //
//                                                                           //
///////////////////////////////////////////////////////////////////////////////

#include <TMath.h>
#include <TRandom.h>
#include <TVector.h>
#include <TGeometry.h>
#include <TNode.h>
#include <TBRIK.h>
#include <TPGON.h> 

#include "AliTRD.h"
#include "AliRun.h"

#include "AliMC.h"
#include "AliConst.h"
 
ClassImp(AliTRD)
 
//_____________________________________________________________________________
AliTRD::AliTRD()
{
  //
  // Default constructor
  //
  fIshunt      = 0;
  fGasMix      = 0;
  fSensSelect  = 0;
  fSensPlane   = 0;
  fSensChamber = 0;
  fSensSector  = 0;
}
 
//_____________________________________________________________________________
AliTRD::AliTRD(const char *name, const char *title)
       : AliDetector(name,title)
{
  //
  // Standard constructor for the TRD
  //

  //
  // Allocate the hit array
 
  fHits   = new TClonesArray("AliTRDhit",  405);
  
  fIshunt      = 0;
  fGasMix      = 0;
  fSensSelect  = 0;
  fSensPlane   = 0;
  fSensChamber = 0;
  fSensSector  = 0;
  
  SetMarkerColor(kWhite);   
}
 
//_____________________________________________________________________________
void AliTRD::AddHit(Int_t track, Int_t *vol, Float_t *hits)
{
  //
  // Add a hit for the TRD
  //
  TClonesArray &lhits = *fHits;
  new(lhits[fNhits++]) AliTRDhit(fIshunt,track,vol,hits);
}

//_____________________________________________________________________________
void AliTRD::BuildGeometry()
{
  //
  // Create the ROOT TNode geometry for the TRD
  //
  TNode *Node, *Top;
  TPGON *pgon;
  const Int_t kColorTRD = 46;
  
  // Find the top node alice
  Top=gAlice->GetGeometry()->GetNode("alice");
  
  pgon = new TPGON("S_TRD","TRD","void",0,360,nsect,4);
  Float_t ff    = TMath::Cos(kDegrad * 180 / nsect);
  Float_t rrmin = rmin / ff;
  Float_t rrmax = rmax / ff;
  pgon->DefineSection(0,-zmax1,rrmax,rrmax);
  pgon->DefineSection(1,-zmax2,rrmin,rrmax);
  pgon->DefineSection(2, zmax2,rrmin,rrmax);
  pgon->DefineSection(3, zmax1,rrmax,rrmax);
  Top->cd();
  Node = new TNode("TRD","TRD","S_TRD",0,0,0,"");
  Node->SetLineColor(kColorTRD);
  fNodes->Add(Node);

}
 
//_____________________________________________________________________________
void AliTRD::CreateMaterials()
{

  //
  // Create the materials for the TRD
  // Origin Y.Foka
  //

  AliMC* pMC = AliMC::GetMC();
  
  Int_t   ISXFLD = gAlice->Field()->Integ();
  Float_t SXMGMX = gAlice->Field()->Max();
  
  // For polyethilene (CH2) 
  Float_t ape[2] = { 12., 1. };
  Float_t zpe[2] = {  6., 1. };
  Float_t wpe[2] = {  1., 2. };
  Float_t dpe    = 0.95;

  // For mylar (C5H4O2) 
  Float_t amy[3] = { 12., 1., 16. };
  Float_t zmy[3] = {  6., 1.,  8. };
  Float_t wmy[3] = {  5., 4.,  2. };
  Float_t dmy    = 1.39;

  // For CO2 
  Float_t aco[2] = { 12., 16. };
  Float_t zco[2] = {  6.,  8. };
  Float_t wco[2] = {  1.,  2. };
  Float_t dco    = 0.001977;

  // For water
  Float_t awa[2] = {  1., 16. };
  Float_t zwa[2] = {  1.,  8. };
  Float_t wwa[2] = {  2.,  1. };
  Float_t dwa    = 1.0;

  // For isobutane (C4H10)
  Float_t ais[2] = { 12.,  1. };
  Float_t zis[2] = {  6.,  1. };
  Float_t wis[2] = {  4., 10. };
  Float_t dis    = 0.00267;

  // For Xe/CO2-gas-mixture 
  // Xe-content of the Xe/CO2-mixture (90% / 10%) 
  Float_t fxc    = .90;
  // Xe-content of the Xe/Isobutane-mixture (97% / 3%) 
  Float_t fxi    = .97;
  Float_t dxe    = .005858;
  
  // General tracking parameter
  Float_t tmaxfd = -10.;
  Float_t stemax = -1e10;
  Float_t deemax = -0.1;
  Float_t epsil  =  1e-4;
  Float_t stmin  = -0.001;
  
  Float_t absl, radl, d, buf[1];
  Float_t agm[2], dgm, zgm[2], wgm[2];
  Int_t   nbuf;
  
  //////////////////////////////////////////////////////////////////////////
  //     Define Materials 
  //////////////////////////////////////////////////////////////////////////

  AliMaterial( 1, "Al $",  26.98, 13.0, 2.7     ,     8.9 ,    37.2);
  AliMaterial( 2, "Air$",  14.61,  7.3, 0.001205, 30420.0 , 67500.0);
  AliMaterial( 4, "Xe $", 131.29, 54.0, dxe     ,  1447.59,     0.0);
  AliMaterial( 5, "Cu $",  63.54, 29.0, 8.96    ,     1.43,    14.8);
  AliMaterial( 6, "C  $",  12.01,  6.0, 2.265   ,    18.8 ,    74.4);
  AliMaterial(12, "G10$",  20.00, 10.0, 1.7     ,    19.4 ,   999.0);

  // Mixtures 
  AliMixture(3, "Polyethilene$",   ape, zpe, dpe, -2, wpe);
  AliMixture(7, "Mylar$",          amy, zmy, dmy, -3, wmy);
  AliMixture(8, "CO2$",            aco, zco, dco, -2, wco);
  AliMixture(9, "Isobutane$",      ais, zis, dis, -2, wis);
  AliMixture(13, "Water$"        , awa, zwa, dwa, -2, wwa);

  // Gas mixtures
  char namate[21];
  // Xe/CO2-mixture
  // Get properties of Xe 
  pMC->Gfmate((*fIdmate)[4], namate, agm[0], zgm[0], d, radl, absl, buf, nbuf);
  // Get properties of CO2 
  pMC->Gfmate((*fIdmate)[8], namate, agm[1], zgm[1], d, radl, absl, buf, nbuf);
  // Create gas mixture 
  wgm[0] = fxc;
  wgm[1] = 1. - fxc;
  dgm    = wgm[0] * dxe + wgm[1] * dco;
  AliMixture(10, "Gas mixture 1$", agm, zgm, dgm,  2, wgm);
  // Xe/Isobutane-mixture
  // Get properties of Xe 
  pMC->Gfmate((*fIdmate)[4], namate, agm[0], zgm[0], d, radl, absl, buf, nbuf);
  // Get properties of Isobutane
  pMC->Gfmate((*fIdmate)[9], namate, agm[1], zgm[1], d, radl, absl, buf, nbuf);
  // Create gas mixture 
  wgm[0] = fxi;
  wgm[1] = 1. - fxi;
  dgm    = wgm[0] * dxe + wgm[1] * dis;
  AliMixture(11, "Gas mixture 2$", agm, zgm, dgm,  2, wgm);
 
  //////////////////////////////////////////////////////////////////////////
  //     Tracking Media Parameters 
  //////////////////////////////////////////////////////////////////////////

  // Al Frame 
  AliMedium(1301, "Al Frame$",   1, 0, ISXFLD, SXMGMX
                , tmaxfd, stemax, deemax, epsil, stmin);
  // Air 
  AliMedium(1302, "Air$",        2, 0, ISXFLD, SXMGMX
                , tmaxfd, stemax, deemax, epsil, stmin);
  // Polyethilene 
  AliMedium(1303, "Radiator$",   3, 0, ISXFLD, SXMGMX
                , tmaxfd, stemax, deemax, epsil, stmin);
  // Xe 
  AliMedium(1304, "Xe$",         4, 1, ISXFLD, SXMGMX
                , tmaxfd, stemax, deemax, epsil, stmin);
  // Cu pads 
  AliMedium(1305, "Padplane$",   5, 1, ISXFLD, SXMGMX
                , tmaxfd, stemax, deemax, epsil, stmin);
  // Fee + cables 
  AliMedium(1306, "Readout$",    1, 0, ISXFLD, SXMGMX
                , tmaxfd, stemax, deemax, epsil, stmin);
  // C frame 
  AliMedium(1307, "C Frame$",    6, 0, ISXFLD, SXMGMX
                , tmaxfd, stemax, deemax, epsil, stmin);
  // Mylar foils 
  AliMedium(1308, "Mylar$",      7, 0, ISXFLD, SXMGMX
                , tmaxfd, stemax, deemax, epsil, stmin);
  if (fGasMix == 1) {
    // Gas-mixture (Xe/CO2) 
    AliMedium(1309, "Gas-mix$",   10, 1, ISXFLD, SXMGMX
                  , tmaxfd, stemax, deemax, epsil, stmin);
  }
  else {
    // Gas-mixture (Xe/Isobutane) 
    AliMedium(1309, "Gas-mix$",   11, 1, ISXFLD, SXMGMX
                  , tmaxfd, stemax, deemax, epsil, stmin);
  }
  // Nomex-honeycomb (use carbon for the time being) 
  AliMedium(1310, "Nomex$",      6, 0, ISXFLD, SXMGMX
                , tmaxfd, stemax, deemax, epsil, stmin);
  // Kapton foils (use Mylar for the time being) 
  AliMedium(1311, "Kapton$",     7, 0, ISXFLD, SXMGMX
                , tmaxfd, stemax, deemax, epsil, stmin);
  // Gas-filling of the radiator 
  AliMedium(1312, "CO2$",        8, 0, ISXFLD, SXMGMX
                , tmaxfd, stemax, deemax, epsil, stmin);
  // G10-plates
  AliMedium(1313, "G10-plates$",12, 0, ISXFLD, SXMGMX
                , tmaxfd, stemax, deemax, epsil, stmin);
  // Cooling water
  AliMedium(1314, "Water$",     13, 0, ISXFLD, SXMGMX
                , tmaxfd, stemax, deemax, epsil, stmin);

}

//_____________________________________________________________________________
Int_t AliTRD::DistancetoPrimitive(Int_t , Int_t )
{
  //
  // Distance between the mouse and the TRD detector on the screen
  // Dummy routine
  //
   return 9999;
}
 
//_____________________________________________________________________________
void AliTRD::Init()
{
  //
  // Initialise the TRD detector after the geometry has been created
  //
  Int_t i;
  //
  printf("\n");
  for(i=0;i<35;i++) printf("*");
  printf(" TRD_INIT ");
  for(i=0;i<35;i++) printf("*");
  printf("\n");
  
  // Here the TRD initialisation code (if any!)
  if (fGasMix == 1) 
    printf("          Gas Mixture: 90%% Xe + 10%% CO2\n");
  else
    printf("          Gas Mixture: 97%% Xe + 3%% Isobutane\n");
  if (fSensPlane)
    printf("          Only plane %d is sensitive\n",fSensPlane);
  if (fSensChamber)   
    printf("          Only chamber %d is sensitive\n",fSensChamber);
  if (fSensSector)
    printf("          Only sector %d is sensitive\n",fSensSector);

  for(i=0;i<80;i++) printf("*");
  printf("\n");
}

//_____________________________________________________________________________
void AliTRD::SetGasMix(Int_t imix = 0)
{

  if ((imix < 0) || (imix > 1)) {
    printf("Wrong input value: %d\n",imix);
    printf("Use standard setting\n");
    fGasMix = 0;
    return;
  }

  fGasMix = imix;

}

//_____________________________________________________________________________
void AliTRD::SetSensPlane(Int_t iplane = 0)
{

  if ((iplane < 0) || (iplane > 6)) {
    printf("Wrong input value: %d\n",iplane);
    printf("Use standard setting\n");
    fSensPlane  = 0;
    fSensSelect = 0;
    return;
  }

  fSensSelect = 1;
  fSensPlane  = iplane;

}

//_____________________________________________________________________________
void AliTRD::SetSensChamber(Int_t ichamber = 0)
{

  if ((ichamber < 0) || (ichamber > 5)) {
    printf("Wrong input value: %d\n",ichamber);
    printf("Use standard setting\n");
    fSensChamber = 0;
    fSensSelect  = 0;
    return;
  }

  fSensSelect  = 1;
  fSensChamber = ichamber;

}

//_____________________________________________________________________________
void AliTRD::SetSensSector(Int_t isector = 0)
{

  if ((isector < 0) || (isector > 18)) {
    printf("Wrong input value: %d\n",isector);
    printf("Use standard setting\n");
    fSensSector = 0;
    fSensSelect = 0;
    return;
  }

  fSensSelect = 1;
  fSensSector = isector;

}

ClassImp(AliTRDhit)
 
//_____________________________________________________________________________
AliTRDhit::AliTRDhit(Int_t shunt, Int_t track, Int_t *vol, Float_t *hits):
  AliHit(shunt, track)
{
  //
  // Create a TRD hit
  //

  //
  // Store volume hierarchy
  fSector  = vol[0]; 
  fChamber = vol[1];
  fPlane   = vol[2];
  //
  // Store position and charge
  fX       = hits[0];
  fY       = hits[1];
  fZ       = hits[2];
  fQ       = hits[3];
}
Commit	Line	Data
fe4da5cc	1	///////////////////////////////////////////////////////////////////////////////
	2	// //
	3	// Transition Radiation Detector //
	4	// This class contains the basic functions for the Transition Radiation //
	5	// detector. Functions specific to one particular geometry are //
	6	// contained in the derived classes //
	7	// //
	8	//Begin_Html
	9	/*
	10	<img src="gif/AliTRDClass.gif">
	11	*/
	12	//End_Html
	13	// //
	14	// //
	15	///////////////////////////////////////////////////////////////////////////////
	16
	17	#include <TMath.h>
	18	#include <TRandom.h>
	19	#include <TVector.h>
	20	#include <TGeometry.h>
	21	#include <TNode.h>
fe4da5cc	22	#include <TBRIK.h>
	23	#include <TPGON.h>
	24
fe4da5cc	25	#include "AliTRD.h"
fe4da5cc	26	#include "AliRun.h"
fe4da5cc	27
d3f347ff	28	#include "AliMC.h"
d3f347ff	29	#include "AliConst.h"
fe4da5cc	30
	31	ClassImp(AliTRD)
	32
	33	//_____________________________________________________________________________
	34	AliTRD::AliTRD()
	35	{
	36	//
	37	// Default constructor
	38	//
d3f347ff	39	fIshunt = 0;
	40	fGasMix = 0;
	41	fSensSelect = 0;
	42	fSensPlane = 0;
	43	fSensChamber = 0;
	44	fSensSector = 0;
fe4da5cc	45	}
	46
	47	//_____________________________________________________________________________
	48	AliTRD::AliTRD(const char name, const char title)
	49	: AliDetector(name,title)
	50	{
	51	//
	52	// Standard constructor for the TRD
	53	//
	54
	55	//
	56	// Allocate the hit array
	57
	58	fHits = new TClonesArray("AliTRDhit", 405);
	59
d3f347ff	60	fIshunt = 0;
	61	fGasMix = 0;
	62	fSensSelect = 0;
	63	fSensPlane = 0;
	64	fSensChamber = 0;
	65	fSensSector = 0;
fe4da5cc	66
	67	SetMarkerColor(kWhite);
	68	}
	69
	70	//_____________________________________________________________________________
	71	void AliTRD::AddHit(Int_t track, Int_t vol, Float_t hits)
	72	{
	73	//
	74	// Add a hit for the TRD
	75	//
	76	TClonesArray &lhits = *fHits;
	77	new(lhits[fNhits++]) AliTRDhit(fIshunt,track,vol,hits);
	78	}
	79
	80	//_____________________________________________________________________________
	81	void AliTRD::BuildGeometry()
	82	{
	83	//
	84	// Create the ROOT TNode geometry for the TRD
	85	//
	86	TNode Node, Top;
	87	TPGON *pgon;
	88	const Int_t kColorTRD = 46;
d3f347ff	89
fe4da5cc	90	// Find the top node alice
fe4da5cc	91	Top=gAlice->GetGeometry()->GetNode("alice");
d3f347ff	92
	93	pgon = new TPGON("S_TRD","TRD","void",0,360,nsect,4);
	94	Float_t ff = TMath::Cos(kDegrad * 180 / nsect);
	95	Float_t rrmin = rmin / ff;
	96	Float_t rrmax = rmax / ff;
	97	pgon->DefineSection(0,-zmax1,rrmax,rrmax);
	98	pgon->DefineSection(1,-zmax2,rrmin,rrmax);
	99	pgon->DefineSection(2, zmax2,rrmin,rrmax);
	100	pgon->DefineSection(3, zmax1,rrmax,rrmax);
fe4da5cc	101	Top->cd();
	102	Node = new TNode("TRD","TRD","S_TRD",0,0,0,"");
	103	Node->SetLineColor(kColorTRD);
	104	fNodes->Add(Node);
d3f347ff	105
fe4da5cc	106	}
	107
	108	//_____________________________________________________________________________
	109	void AliTRD::CreateMaterials()
	110	{
d3f347ff	111
fe4da5cc	112	//
	113	// Create the materials for the TRD
	114	// Origin Y.Foka
	115	//
	116
	117	AliMC* pMC = AliMC::GetMC();
	118
	119	Int_t ISXFLD = gAlice->Field()->Integ();
	120	Float_t SXMGMX = gAlice->Field()->Max();
	121
d3f347ff	122	// For polyethilene (CH2)
	123	Float_t ape[2] = { 12., 1. };
	124	Float_t zpe[2] = { 6., 1. };
	125	Float_t wpe[2] = { 1., 2. };
	126	Float_t dpe = 0.95;
	127
	128	// For mylar (C5H4O2)
	129	Float_t amy[3] = { 12., 1., 16. };
	130	Float_t zmy[3] = { 6., 1., 8. };
	131	Float_t wmy[3] = { 5., 4., 2. };
fe4da5cc	132	Float_t dmy = 1.39;
d3f347ff	133
	134	// For CO2
	135	Float_t aco[2] = { 12., 16. };
	136	Float_t zco[2] = { 6., 8. };
	137	Float_t wco[2] = { 1., 2. };
	138	Float_t dco = 0.001977;
	139
	140	// For water
	141	Float_t awa[2] = { 1., 16. };
	142	Float_t zwa[2] = { 1., 8. };
	143	Float_t wwa[2] = { 2., 1. };
	144	Float_t dwa = 1.0;
	145
	146	// For isobutane (C4H10)
	147	Float_t ais[2] = { 12., 1. };
	148	Float_t zis[2] = { 6., 1. };
	149	Float_t wis[2] = { 4., 10. };
	150	Float_t dis = 0.00267;
	151
	152	// For Xe/CO2-gas-mixture
	153	// Xe-content of the Xe/CO2-mixture (90% / 10%)
	154	Float_t fxc = .90;
	155	// Xe-content of the Xe/Isobutane-mixture (97% / 3%)
	156	Float_t fxi = .97;
fe4da5cc	157	Float_t dxe = .005858;
fe4da5cc	158
d3f347ff	159	// General tracking parameter
fe4da5cc	160	Float_t tmaxfd = -10.;
fe4da5cc	161	Float_t stemax = -1e10;
d3f347ff	162	Float_t deemax = -0.1;
	163	Float_t epsil = 1e-4;
	164	Float_t stmin = -0.001;
fe4da5cc	165
	166	Float_t absl, radl, d, buf[1];
	167	Float_t agm[2], dgm, zgm[2], wgm[2];
d3f347ff	168	Int_t nbuf;
fe4da5cc	169
d3f347ff	170	//////////////////////////////////////////////////////////////////////////
fe4da5cc	171	// Define Materials
d3f347ff	172	//////////////////////////////////////////////////////////////////////////
	173
	174	AliMaterial( 1, "Al $", 26.98, 13.0, 2.7 , 8.9 , 37.2);
	175	AliMaterial( 2, "Air$", 14.61, 7.3, 0.001205, 30420.0 , 67500.0);
	176	AliMaterial( 4, "Xe $", 131.29, 54.0, dxe , 1447.59, 0.0);
	177	AliMaterial( 5, "Cu $", 63.54, 29.0, 8.96 , 1.43, 14.8);
	178	AliMaterial( 6, "C $", 12.01, 6.0, 2.265 , 18.8 , 74.4);
	179	AliMaterial(12, "G10$", 20.00, 10.0, 1.7 , 19.4 , 999.0);
	180
	181	// Mixtures
	182	AliMixture(3, "Polyethilene$", ape, zpe, dpe, -2, wpe);
	183	AliMixture(7, "Mylar$", amy, zmy, dmy, -3, wmy);
	184	AliMixture(8, "CO2$", aco, zco, dco, -2, wco);
	185	AliMixture(9, "Isobutane$", ais, zis, dis, -2, wis);
	186	AliMixture(13, "Water$" , awa, zwa, dwa, -2, wwa);
	187
	188	// Gas mixtures
fe4da5cc	189	char namate[21];
d3f347ff	190	// Xe/CO2-mixture
d3f347ff	191	// Get properties of Xe
fe4da5cc	192	pMC->Gfmate((*fIdmate)[4], namate, agm[0], zgm[0], d, radl, absl, buf, nbuf);
d3f347ff	193	// Get properties of CO2
fe4da5cc	194	pMC->Gfmate((*fIdmate)[8], namate, agm[1], zgm[1], d, radl, absl, buf, nbuf);
d3f347ff	195	// Create gas mixture
	196	wgm[0] = fxc;
	197	wgm[1] = 1. - fxc;
fe4da5cc	198	dgm = wgm[0] * dxe + wgm[1] * dco;
d3f347ff	199	AliMixture(10, "Gas mixture 1$", agm, zgm, dgm, 2, wgm);
	200	// Xe/Isobutane-mixture
	201	// Get properties of Xe
	202	pMC->Gfmate((*fIdmate)[4], namate, agm[0], zgm[0], d, radl, absl, buf, nbuf);
	203	// Get properties of Isobutane
	204	pMC->Gfmate((*fIdmate)[9], namate, agm[1], zgm[1], d, radl, absl, buf, nbuf);
	205	// Create gas mixture
	206	wgm[0] = fxi;
	207	wgm[1] = 1. - fxi;
	208	dgm = wgm[0] * dxe + wgm[1] * dis;
	209	AliMixture(11, "Gas mixture 2$", agm, zgm, dgm, 2, wgm);
	210
	211	//////////////////////////////////////////////////////////////////////////
fe4da5cc	212	// Tracking Media Parameters
d3f347ff	213	//////////////////////////////////////////////////////////////////////////
	214
	215	// Al Frame
	216	AliMedium(1301, "Al Frame$", 1, 0, ISXFLD, SXMGMX
	217	, tmaxfd, stemax, deemax, epsil, stmin);
	218	// Air
	219	AliMedium(1302, "Air$", 2, 0, ISXFLD, SXMGMX
	220	, tmaxfd, stemax, deemax, epsil, stmin);
	221	// Polyethilene
	222	AliMedium(1303, "Radiator$", 3, 0, ISXFLD, SXMGMX
	223	, tmaxfd, stemax, deemax, epsil, stmin);
	224	// Xe
	225	AliMedium(1304, "Xe$", 4, 1, ISXFLD, SXMGMX
	226	, tmaxfd, stemax, deemax, epsil, stmin);
	227	// Cu pads
	228	AliMedium(1305, "Padplane$", 5, 1, ISXFLD, SXMGMX
	229	, tmaxfd, stemax, deemax, epsil, stmin);
	230	// Fee + cables
	231	AliMedium(1306, "Readout$", 1, 0, ISXFLD, SXMGMX
	232	, tmaxfd, stemax, deemax, epsil, stmin);
	233	// C frame
	234	AliMedium(1307, "C Frame$", 6, 0, ISXFLD, SXMGMX
	235	, tmaxfd, stemax, deemax, epsil, stmin);
	236	// Mylar foils
	237	AliMedium(1308, "Mylar$", 7, 0, ISXFLD, SXMGMX
	238	, tmaxfd, stemax, deemax, epsil, stmin);
	239	if (fGasMix == 1) {
	240	// Gas-mixture (Xe/CO2)
	241	AliMedium(1309, "Gas-mix$", 10, 1, ISXFLD, SXMGMX
	242	, tmaxfd, stemax, deemax, epsil, stmin);
	243	}
	244	else {
	245	// Gas-mixture (Xe/Isobutane)
	246	AliMedium(1309, "Gas-mix$", 11, 1, ISXFLD, SXMGMX
	247	, tmaxfd, stemax, deemax, epsil, stmin);
	248	}
	249	// Nomex-honeycomb (use carbon for the time being)
	250	AliMedium(1310, "Nomex$", 6, 0, ISXFLD, SXMGMX
	251	, tmaxfd, stemax, deemax, epsil, stmin);
	252	// Kapton foils (use Mylar for the time being)
	253	AliMedium(1311, "Kapton$", 7, 0, ISXFLD, SXMGMX
	254	, tmaxfd, stemax, deemax, epsil, stmin);
	255	// Gas-filling of the radiator
	256	AliMedium(1312, "CO2$", 8, 0, ISXFLD, SXMGMX
	257	, tmaxfd, stemax, deemax, epsil, stmin);
	258	// G10-plates
	259	AliMedium(1313, "G10-plates$",12, 0, ISXFLD, SXMGMX
	260	, tmaxfd, stemax, deemax, epsil, stmin);
	261	// Cooling water
	262	AliMedium(1314, "Water$", 13, 0, ISXFLD, SXMGMX
	263	, tmaxfd, stemax, deemax, epsil, stmin);
	264
fe4da5cc	265	}
	266
	267	//_____________________________________________________________________________
	268	Int_t AliTRD::DistancetoPrimitive(Int_t , Int_t )
	269	{
	270	//
	271	// Distance between the mouse and the TRD detector on the screen
	272	// Dummy routine
	273	//
	274	return 9999;
	275	}
	276
	277	//_____________________________________________________________________________
	278	void AliTRD::Init()
	279	{
	280	//
	281	// Initialise the TRD detector after the geometry has been created
	282	//
	283	Int_t i;
	284	//
	285	printf("\n");
	286	for(i=0;i<35;i++) printf("*");
	287	printf(" TRD_INIT ");
	288	for(i=0;i<35;i++) printf("*");
	289	printf("\n");
d3f347ff	290
fe4da5cc	291	// Here the TRD initialisation code (if any!)
d3f347ff	292	if (fGasMix == 1)
	293	printf(" Gas Mixture: 90%% Xe + 10%% CO2\n");
	294	else
	295	printf(" Gas Mixture: 97%% Xe + 3%% Isobutane\n");
	296	if (fSensPlane)
	297	printf(" Only plane %d is sensitive\n",fSensPlane);
	298	if (fSensChamber)
	299	printf(" Only chamber %d is sensitive\n",fSensChamber);
	300	if (fSensSector)
	301	printf(" Only sector %d is sensitive\n",fSensSector);
	302
fe4da5cc	303	for(i=0;i<80;i++) printf("*");
	304	printf("\n");
	305	}
	306
d3f347ff	307	//_____________________________________________________________________________
	308	void AliTRD::SetGasMix(Int_t imix = 0)
	309	{
	310
	311	if ((imix < 0) \|\| (imix > 1)) {
	312	printf("Wrong input value: %d\n",imix);
	313	printf("Use standard setting\n");
	314	fGasMix = 0;
	315	return;
	316	}
	317
	318	fGasMix = imix;
	319
	320	}
	321
	322	//_____________________________________________________________________________
	323	void AliTRD::SetSensPlane(Int_t iplane = 0)
	324	{
	325
	326	if ((iplane < 0) \|\| (iplane > 6)) {
	327	printf("Wrong input value: %d\n",iplane);
	328	printf("Use standard setting\n");
	329	fSensPlane = 0;
	330	fSensSelect = 0;
	331	return;
	332	}
	333
	334	fSensSelect = 1;
	335	fSensPlane = iplane;
	336
	337	}
	338
	339	//_____________________________________________________________________________
	340	void AliTRD::SetSensChamber(Int_t ichamber = 0)
	341	{
	342
	343	if ((ichamber < 0) \|\| (ichamber > 5)) {
	344	printf("Wrong input value: %d\n",ichamber);
	345	printf("Use standard setting\n");
	346	fSensChamber = 0;
	347	fSensSelect = 0;
	348	return;
	349	}
	350
	351	fSensSelect = 1;
	352	fSensChamber = ichamber;
	353
	354	}
	355
	356	//_____________________________________________________________________________
	357	void AliTRD::SetSensSector(Int_t isector = 0)
	358	{
	359
	360	if ((isector < 0) \|\| (isector > 18)) {
	361	printf("Wrong input value: %d\n",isector);
	362	printf("Use standard setting\n");
	363	fSensSector = 0;
	364	fSensSelect = 0;
	365	return;
	366	}
	367
	368	fSensSelect = 1;
	369	fSensSector = isector;
	370
371	}
372
fe4da5cc	373	ClassImp(AliTRDhit)
	374
	375	//_____________________________________________________________________________
	376	AliTRDhit::AliTRDhit(Int_t shunt, Int_t track, Int_t vol, Float_t hits):
	377	AliHit(shunt, track)
	378	{
	379	//
	380	// Create a TRD hit
	381	//
	382
	383	//
	384	// Store volume hierarchy
	385	fSector = vol[0];
	386	fChamber = vol[1];
	387	fPlane = vol[2];
	388	//
	389	// Store position and charge
	390	fX = hits[0];
	391	fY = hits[1];
	392	fZ = hits[2];
	393	fQ = hits[3];
	394	}