[u/mrichter/AliRoot.git] / ITS / AliITS.cxx

///////////////////////////////////////////////////////////////////////////////
//                                                                           //
//  Inner Traking System                                                     //
//  This class contains the base procedures for the Inner Tracking System    //
//                                                                           //
//Begin_Html
/*
<img src="picts/AliITSClass.gif">
</pre>
<br clear=left>
<font size=+2 color=red>
<p>The responsible person for this module is
<a href="mailto:roberto.barbera@ct.infn.it">Roberto Barbera</a>.
</font>
<pre>
*/
//End_Html
//                                                                           //
///////////////////////////////////////////////////////////////////////////////
 
#include <TMath.h>
#include <TRandom.h>
#include <TVector.h>
#include <TGeometry.h>
#include <TNode.h>
#include <TTUBE.h>
#include "GParticle.h"
#include "AliITS.h"
#include "AliRun.h"

#include "TGeant3.h"

ClassImp(AliITS)
 
//_____________________________________________________________________________
AliITS::AliITS() : AliDetector()
{
  //
  // Default initialiser for ITS
  //
  fIshunt   = 0;
  fEuclidOut  =  0;
}
 
//_____________________________________________________________________________
AliITS::AliITS(const char *name, const char *title)
  : AliDetector(name,title)
{
  //
  // Default initialiser for ITS
  //
  
  fHits   = new TClonesArray("AliITShit", 1560);
  fDigits   = new TClonesArray("AliITSdigit",1000);
  
  fIshunt     =  0;
  fEuclidOut  =  0;
  
  fIdSens1 = fIdSens2 = fIdSens3 = fIdSens4 = fIdSens5 = fIdSens6 = 0;
  
  SetMarkerColor(kRed);
}

//_____________________________________________________________________________
AliITS::~AliITS()
{
  //
  // Default distructor for ITS
  //
  delete fHits;
  delete fDigits;
}

//_____________________________________________________________________________
void AliITS::AddDigit(Int_t *tracks, Int_t *digits)
{
  //
  // Add an ITS Digit
  //
  TClonesArray &ldigits = *fDigits;
  new(ldigits[fNdigits++]) AliITSdigit(tracks,digits);
}

//_____________________________________________________________________________
void AliITS::AddHit(Int_t track, Int_t *vol, Float_t *hits)
{
  //
  // Add an ITS hit
  //
  TClonesArray &lhits = *fHits;
  new(lhits[fNhits++]) AliITShit(fIshunt,track,vol,hits);
}
 
//_____________________________________________________________________________
void AliITS::BuildGeometry()
{
  //
  // Build ITS TNODE geometry for event display
  //
  TNode *Node, *Top;
  const int kColorITS=kYellow;
  //
  Top=gAlice->GetGeometry()->GetNode("alice");

  new TTUBE("S_layer1","Layer1 of ITS","void",3.9,3.9+0.05475,12.25);
  Top->cd();
  Node = new TNode("Layer1","Layer1","S_layer1",0,0,0,"");
  Node->SetLineColor(kColorITS);
  fNodes->Add(Node);

  new TTUBE("S_layer2","Layer2 of ITS","void",7.6,7.6+0.05475,16.3);
  Top->cd();
  Node = new TNode("Layer2","Layer2","S_layer2",0,0,0,"");
  Node->SetLineColor(kColorITS);
  fNodes->Add(Node);

  new TTUBE("S_layer3","Layer3 of ITS","void",14,14+0.05288,21.1);
  Top->cd();
  Node = new TNode("Layer3","Layer3","S_layer3",0,0,0,"");
  Node->SetLineColor(kColorITS);
  fNodes->Add(Node);

  new TTUBE("S_layer4","Layer4 of ITS","void",24,24+0.05288,29.6);
  Top->cd();
  Node = new TNode("Layer4","Layer4","S_layer4",0,0,0,"");
  Node->SetLineColor(kColorITS);
  fNodes->Add(Node);

  new TTUBE("S_layer5","Layer5 of ITS","void",40,40+0.05382,45.1);
  Top->cd();
  Node = new TNode("Layer5","Layer5","S_layer5",0,0,0,"");
  Node->SetLineColor(kColorITS);
  fNodes->Add(Node);

  new TTUBE("S_layer6","Layer6 of ITS","void",45,45+0.05382,50.4);
  Top->cd();
  Node = new TNode("Layer6","Layer6","S_layer6",0,0,0,"");
  Node->SetLineColor(kColorITS);
  fNodes->Add(Node);
}
 
//_____________________________________________________________________________
void AliITS::CreateMaterials()
{
  //
  // Create ITS materials
  //

  Float_t awat[2]  = { 1.00794,15.9994 };
  Float_t zwat[2]  = { 1.,8. };
  Float_t wwat[2]  = { 2.,1. };
  Float_t denswat  = 1.;
  Float_t afre[2]  = { 12.011,18.9984032 };
  Float_t zfre[2]  = { 6.,9. };
  Float_t wfre[2]  = { 5.,12. };
  Float_t densfre  = 1.5;
  //     94.4% Al2O3 , 2.8% SiO2 , 2.3% MnO , 0.5% Cr2O3 
  Float_t acer[5]  = { 26.981539,15.9994,28.0855,54.93805,51.9961 };
  Float_t zcer[5]  = { 13.,8.,14.,25.,	    24. };
  Float_t wcer[5]  = { .49976,1.01233,.01307,	    .01782,.00342 };
  Float_t denscer  = 3.6;
  //     60% SiO2 , 40% G10FR4 
  Float_t apcb[3]  = { 28.0855,15.9994,17.749 };
  Float_t zpcb[3]  = { 14.,8.,8.875 };
  Float_t wpcb[3]  = { .28,.32,.4 };
  Float_t denspcb  = 1.8;
  Float_t apoly[2] = { 12.01,1. };
  Float_t zpoly[2] = { 6.,1. };
  Float_t wpoly[2] = { .33,.67 };
  Float_t zserv[4] = { 1.,6.,26.,29. };
  Float_t aserv[4] = { 1.,12.,55.8,63.5 };
  Float_t wserv[4] = { .014,.086,.42,.48 };
  
  Int_t ISXFLD   = gAlice->Field()->Integ();
  Float_t SXMGMX = gAlice->Field()->Max();
  
  
  // --- Define the various materials for GEANT --- 
  
  //    200-224 --> Silicon Pixel Detectors (detectors, chips, buses, cooling,..)
  
  AliMaterial(0, "SPD Si$",      28.0855, 14., 2.33, 9.36, 999);
  AliMaterial(1, "SPD Si chip$", 28.0855, 14., 2.33, 9.36, 999);
  AliMaterial(2, "SPD Si bus$",  28.0855, 14., 2.33, 9.36, 999);
  AliMaterial(3, "SPD C$",       12.011,   6., 2.265,18.8, 999);
  // v. dens 
  AliMaterial(4, "SPD Air$",    14.61, 7.3, .001205, 30423., 999);
  AliMaterial(5, "SPD Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
  AliMaterial(6, "SPD Al$",     26.981539, 13., 2.6989, 8.9, 999);
  AliMixture( 7, "SPD Water $", awat, zwat, denswat, -2, wwat);
  AliMixture( 8, "SPD Freon$",  afre, zfre, densfre, -2, wfre);
  // ** 
  AliMedium(200, "SPD Si$",      0, 1, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(201, "SPD Si chip$", 1, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(202, "SPD Si bus$",  2, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(203, "SPD C$",       3, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(204, "SPD Air$",     4, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(205, "SPD Vacuum$",  5, 0, ISXFLD, SXMGMX, 10.,  1., .1, .1,    10.);
  AliMedium(206, "SPD Al$",      6, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(207, "SPD Water $",  7, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(208, "SPD Freon$",   8, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  
  //    225-249 --> Silicon Drift Detectors (detectors, chips, buses, cooling,..)
  
  AliMaterial(25, "SDD Si$",      28.0855, 14., 2.33,  9.36, 999);
  AliMaterial(26, "SDD Si chip$", 28.0855, 14., 2.33,  9.36, 999);
  AliMaterial(27, "SDD Si bus$",  28.0855, 14., 2.33,  9.36, 999);
  AliMaterial(28, "SDD C$",       12.011,   6., 2.265,18.8,  999);
  // v. dens 
  AliMaterial(29, "SDD Air$",     14.61, 7.3, .001205, 30423., 999);
  AliMaterial(30, "SDD Vacuum$",  1e-16, 1e-16, 1e-16, 1e16,  1e16);
  AliMaterial(31, "SDD Al$",      26.981539, 13., 2.6989, 8.9, 999);
  // After a call with ratios by number (negative number of elements), 
  // the ratio array is changed to the ratio by weight, so all successive 
  // calls with the same array must specify the number of elements as 
  // positive 
  AliMixture(32, "SDD Water $", awat, zwat, denswat, 2, wwat);
  // After a call with ratios by number (negative number of elements), 
  // the ratio array is changed to the ratio by weight, so all successive 
  // calls with the same array must specify the number of elements as 
  // positive 
  AliMixture( 33, "SDD Freon$", afre, zfre, densfre, 2, wfre);
  AliMixture( 34, "SDD PCB$",   apcb, zpcb, denspcb, 3, wpcb);
  AliMaterial(35, "SDD Copper$", 63.546, 29., 8.96, 1.43, 999);
  AliMixture( 36, "SDD Ceramics$", acer, zcer, denscer, -5, wcer);
  AliMaterial(37, "SDD Kapton$", 12.011, 6., 1.3, 31.27, 999);
  // ** 
  // check A and Z 
  AliMedium(225, "SDD Si$",      25, 1, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(226, "SDD Si chip$", 26, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(227, "SDD Si bus$",  27, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(228, "SDD C$",       28, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(229, "SDD Air$",     29, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(230, "SDD Vacuum$",  30, 0, ISXFLD, SXMGMX, 10.,  1., .1, .1,    10.);
  AliMedium(231, "SDD Al$",      31, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(232, "SDD Water $",  32, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(233, "SDD Freon$",   33, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(234, "SDD PCB$",     34, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(235, "SDD Copper$",  35, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(236, "SDD Ceramics$",36, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(237, "SDD Kapton$",  37, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  
  //    250-274 --> Silicon Strip Detectors (detectors, chips, buses, cooling,..)
  
  AliMaterial(50, "SSD Si$",      28.0855, 14., 2.33, 9.36, 999.);
  AliMaterial(51, "SSD Si chip$", 28.0855, 14., 2.33, 9.36, 999.);
  AliMaterial(52, "SSD Si bus$",  28.0855, 14., 2.33, 9.36, 999.);
  AliMaterial(53, "SSD C$",       12.011,   6., 2.265,18.8, 999.);
  // v. dens 
  AliMaterial(54, "SSD Air$",     14.61, 7.3, .001205, 30423., 999);
  AliMaterial(55, "SSD Vacuum$",  1e-16, 1e-16, 1e-16, 1e16, 1e16);
  AliMaterial(56, "SSD Al$",      26.981539, 13., 2.6989, 8.9, 999);
  // After a call with ratios by number (negative number of elements), 
  // the ratio array is changed to the ratio by weight, so all successive 
  // calls with the same array must specify the number of elements as 
  // positive 
  AliMixture(57, "SSD Water $", awat, zwat, denswat, 2, wwat);
  // After a call with ratios by number (negative number of elements), 
  // the ratio array is changed to the ratio by weight, so all successive 
  // calls with the same array must specify the number of elements as 
  // positive 
  AliMixture(58, "SSD Freon$", afre, zfre, densfre, 2, wfre);
  AliMixture(59, "SSD PCB$",   apcb, zpcb, denspcb, 3, wpcb);
  AliMaterial(60, "SSD Copper$", 63.546, 29., 8.96, 1.43, 999.);
  // After a call with ratios by number (negative number of elements), 
  // the ratio array is changed to the ratio by weight, so all successive 
  // calls with the same array must specify the number of elements as 
  // positive 
  AliMixture( 61, "SSD Ceramics$", acer, zcer, denscer, 5, wcer);
  AliMaterial(62, "SSD Kapton$", 12.011, 6., 1.3, 31.27, 999.);
  // check A and Z 
  AliMaterial(63, "SDD G10FR4$", 17.749, 8.875, 1.8, 21.822, 999.);
  // ** 
  AliMedium(250, "SSD Si$",      50, 1, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(251, "SSD Si chip$", 51, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(252, "SSD Si bus$",  52, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(253, "SSD C$",       53, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(254, "SSD Air$",     54, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(255, "SSD Vacuum$",  55, 0, ISXFLD, SXMGMX, 10.,  1., .1, .1,    10.);
  AliMedium(256, "SSD Al$",      56, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(257, "SSD Water $",  57, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(258, "SSD Freon$",   58, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(259, "SSD PCB$",     59, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(260, "SSD Copper$",  60, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(261, "SSD Ceramics$",61, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(262, "SSD Kapton$",  62, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(263, "SSD G10FR4$",  63, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  
  //     275-299 --> General (end-caps, frames, cooling, cables, etc.) 
  
  AliMaterial(75, "GEN C$", 12.011, 6., 2.265, 18.8, 999.);
  // verify density 
  AliMaterial(76, "GEN Air$", 14.61, 7.3, .001205, 30423., 999);
  AliMaterial(77, "GEN Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
  AliMixture( 78, "GEN POLYETHYL$", apoly, zpoly, .95, -2, wpoly);
  AliMixture( 79, "GEN SERVICES$",  aserv, zserv, 4.68, 4, wserv);
  AliMaterial(80, "GEN Copper$", 63.546, 29., 8.96, 1.43, 999.);
  // After a call with ratios by number (negative number of elements), 
  // the ratio array is changed to the ratio by weight, so all successive 
  // calls with the same array must specify the number of elements as 
  // positive 
  AliMixture(81, "GEN Water $", awat, zwat, denswat, 2, wwat);
  // ** 
  AliMedium(275, "GEN C$",         75, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(276, "GEN Air$",       76, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(277, "GEN Vacuum$",    77, 0, ISXFLD, SXMGMX, 10., .1,  .1, .1,    10.);
  AliMedium(278, "GEN POLYETHYL$", 78, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(279, "GEN SERVICES$",  79, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(280, "GEN Copper$",    80, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
  AliMedium(281, "GEN Water $",    81, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
}

//_____________________________________________________________________________
Int_t AliITS::DistancetoPrimitive(Int_t , Int_t )
{
  //
  // Distance from mouse to ITS on the screen. Dummy routine
  //
  return 9999;
}

//_____________________________________________________________________________
void AliITS::Init()
{
  //
  // Initialise ITS after it has been built
  //
  Int_t i;
  AliMC* pMC = AliMC::GetMC();
  //
  printf("\n");
  for(i=0;i<35;i++) printf("*");
  printf(" ITS_INIT ");
  for(i=0;i<35;i++) printf("*");
  printf("\n");
  //
  //
  fIdSens1=pMC->VolId("ITS1");
  fIdSens2=pMC->VolId("ITS2");
  fIdSens3=pMC->VolId("ITS3");
  fIdSens4=pMC->VolId("ITS4");
  fIdSens5=pMC->VolId("ITS5");
  fIdSens6=pMC->VolId("ITS6");
  //
  for(i=0;i<80;i++) printf("*");
  printf("\n");
}

//_____________________________________________________________________________
void AliITS::MakeBranch(Option_t* option)
{
  //
  // Create Tree branches for the ITS.
  //
  Int_t buffersize = 4000;
  char branchname[10];
  sprintf(branchname,"%s",GetName());

  AliDetector::MakeBranch(option);

  char *D = strstr(option,"D");

  if (fDigits   && gAlice->TreeD() && D) {
    gAlice->TreeD()->Branch(branchname,&fDigits, buffersize);
    printf("Making Branch %s for digits\n",branchname);
  }	
}
 
//_____________________________________________________________________________
void AliITS::SetEUCLID(Bool_t euclid)
{
  //
  // set euclid output flag
  //
  fEuclidOut=euclid;
}
 
ClassImp(AliITShit)
 
//_____________________________________________________________________________
AliITShit::AliITShit(Int_t shunt, Int_t track, Int_t *vol, Float_t *hits):
  AliHit(shunt, track)
{
  //
  // Create ITS hit
  //
  fLayer      = vol[0];   // Layer number
  fLadder     = vol[2];   // Ladder number
  fDet        = vol[1];   // Detector number   
  fX          = hits[0];
  fY          = hits[1];
  fZ          = hits[2];
  fPx         = hits[3];
  fPy         = hits[4];
  fPz         = hits[5];
  fDestep     = hits[6];
}

ClassImp(AliITSdigit)
 
//_____________________________________________________________________________
AliITSdigit::AliITSdigit(Int_t *tracks, Int_t *digits):
  AliDigit(tracks)
{
  //
  // Create ITS digit
  //
  fEvent      = digits[0];
  fLayer      = digits[1];
  fDet        = digits[2];
  fNoverl     = digits[3];
}
Commit	Line	Data
fe4da5cc	1	///////////////////////////////////////////////////////////////////////////////
	2	// //
	3	// Inner Traking System //
	4	// This class contains the base procedures for the Inner Tracking System //
	5	// //
	6	//Begin_Html
	7	/*
1439f98e	8	<img src="picts/AliITSClass.gif">
fe4da5cc	9	</pre>
	10	<br clear=left>
	11	<font size=+2 color=red>
	12	<p>The responsible person for this module is
	13	<a href="mailto:roberto.barbera@ct.infn.it">Roberto Barbera</a>.
	14	</font>
	15	<pre>
	16	*/
	17	//End_Html
	18	// //
	19	///////////////////////////////////////////////////////////////////////////////
	20
	21	#include <TMath.h>
	22	#include <TRandom.h>
	23	#include <TVector.h>
	24	#include <TGeometry.h>
	25	#include <TNode.h>
	26	#include <TTUBE.h>
	27	#include "GParticle.h"
	28	#include "AliITS.h"
	29	#include "AliRun.h"
	30
	31	#include "TGeant3.h"
	32
	33	ClassImp(AliITS)
	34
	35	//_____________________________________________________________________________
	36	AliITS::AliITS() : AliDetector()
	37	{
	38	//
	39	// Default initialiser for ITS
	40	//
	41	fIshunt = 0;
	42	fEuclidOut = 0;
	43	}
	44
	45	//_____________________________________________________________________________
	46	AliITS::AliITS(const char name, const char title)
	47	: AliDetector(name,title)
	48	{
	49	//
	50	// Default initialiser for ITS
	51	//
	52
	53	fHits = new TClonesArray("AliITShit", 1560);
	54	fDigits = new TClonesArray("AliITSdigit",1000);
	55
	56	fIshunt = 0;
	57	fEuclidOut = 0;
	58
	59	fIdSens1 = fIdSens2 = fIdSens3 = fIdSens4 = fIdSens5 = fIdSens6 = 0;
	60
	61	SetMarkerColor(kRed);
	62	}
	63
	64	//_____________________________________________________________________________
	65	AliITS::~AliITS()
	66	{
	67	//
	68	// Default distructor for ITS
	69	//
	70	delete fHits;
	71	delete fDigits;
	72	}
73
74	//_____________________________________________________________________________
75	void AliITS::AddDigit(Int_t tracks, Int_t digits)
76	{
77	//
78	// Add an ITS Digit
79	//
80	TClonesArray &ldigits = *fDigits;
81	new(ldigits[fNdigits++]) AliITSdigit(tracks,digits);
82	}
83
84	//_____________________________________________________________________________
85	void AliITS::AddHit(Int_t track, Int_t vol, Float_t hits)
86	{
87	//
88	// Add an ITS hit
89	//
90	TClonesArray &lhits = *fHits;
91	new(lhits[fNhits++]) AliITShit(fIshunt,track,vol,hits);
92	}
93
94	//_____________________________________________________________________________
95	void AliITS::BuildGeometry()
96	{
97	//
98	// Build ITS TNODE geometry for event display
99	//
100	TNode Node, Top;
101	const int kColorITS=kYellow;
102	//
103	Top=gAlice->GetGeometry()->GetNode("alice");
104
105	new TTUBE("S_layer1","Layer1 of ITS","void",3.9,3.9+0.05475,12.25);
106	Top->cd();
107	Node = new TNode("Layer1","Layer1","S_layer1",0,0,0,"");
108	Node->SetLineColor(kColorITS);
109	fNodes->Add(Node);
110
111	new TTUBE("S_layer2","Layer2 of ITS","void",7.6,7.6+0.05475,16.3);
112	Top->cd();
113	Node = new TNode("Layer2","Layer2","S_layer2",0,0,0,"");
114	Node->SetLineColor(kColorITS);
115	fNodes->Add(Node);
116
117	new TTUBE("S_layer3","Layer3 of ITS","void",14,14+0.05288,21.1);
118	Top->cd();
119	Node = new TNode("Layer3","Layer3","S_layer3",0,0,0,"");
120	Node->SetLineColor(kColorITS);
121	fNodes->Add(Node);
122
123	new TTUBE("S_layer4","Layer4 of ITS","void",24,24+0.05288,29.6);
124	Top->cd();
125	Node = new TNode("Layer4","Layer4","S_layer4",0,0,0,"");
126	Node->SetLineColor(kColorITS);
127	fNodes->Add(Node);
128
129	new TTUBE("S_layer5","Layer5 of ITS","void",40,40+0.05382,45.1);
130	Top->cd();
131	Node = new TNode("Layer5","Layer5","S_layer5",0,0,0,"");
132	Node->SetLineColor(kColorITS);
133	fNodes->Add(Node);
134
135	new TTUBE("S_layer6","Layer6 of ITS","void",45,45+0.05382,50.4);
136	Top->cd();
137	Node = new TNode("Layer6","Layer6","S_layer6",0,0,0,"");
138	Node->SetLineColor(kColorITS);
139	fNodes->Add(Node);
140	}
141
142	//_____________________________________________________________________________
143	void AliITS::CreateMaterials()
144	{
145	//
146	// Create ITS materials
147	//
148
149	Float_t awat[2] = { 1.00794,15.9994 };
150	Float_t zwat[2] = { 1.,8. };
151	Float_t wwat[2] = { 2.,1. };
152	Float_t denswat = 1.;
153	Float_t afre[2] = { 12.011,18.9984032 };
154	Float_t zfre[2] = { 6.,9. };
155	Float_t wfre[2] = { 5.,12. };
156	Float_t densfre = 1.5;
157	// 94.4% Al2O3 , 2.8% SiO2 , 2.3% MnO , 0.5% Cr2O3
158	Float_t acer[5] = { 26.981539,15.9994,28.0855,54.93805,51.9961 };
159	Float_t zcer[5] = { 13.,8.,14.,25., 24. };
160	Float_t wcer[5] = { .49976,1.01233,.01307, .01782,.00342 };
161	Float_t denscer = 3.6;
162	// 60% SiO2 , 40% G10FR4
163	Float_t apcb[3] = { 28.0855,15.9994,17.749 };
164	Float_t zpcb[3] = { 14.,8.,8.875 };
165	Float_t wpcb[3] = { .28,.32,.4 };
166	Float_t denspcb = 1.8;
167	Float_t apoly[2] = { 12.01,1. };
168	Float_t zpoly[2] = { 6.,1. };
169	Float_t wpoly[2] = { .33,.67 };
170	Float_t zserv[4] = { 1.,6.,26.,29. };
171	Float_t aserv[4] = { 1.,12.,55.8,63.5 };
172	Float_t wserv[4] = { .014,.086,.42,.48 };
173
174	Int_t ISXFLD = gAlice->Field()->Integ();
175	Float_t SXMGMX = gAlice->Field()->Max();
176
177
178	// --- Define the various materials for GEANT ---
179
180	// 200-224 --> Silicon Pixel Detectors (detectors, chips, buses, cooling,..)
181
182	AliMaterial(0, "SPD Si$", 28.0855, 14., 2.33, 9.36, 999);
183	AliMaterial(1, "SPD Si chip$", 28.0855, 14., 2.33, 9.36, 999);
184	AliMaterial(2, "SPD Si bus$", 28.0855, 14., 2.33, 9.36, 999);
185	AliMaterial(3, "SPD C$", 12.011, 6., 2.265,18.8, 999);
186	// v. dens
187	AliMaterial(4, "SPD Air$", 14.61, 7.3, .001205, 30423., 999);
188	AliMaterial(5, "SPD Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
189	AliMaterial(6, "SPD Al$", 26.981539, 13., 2.6989, 8.9, 999);
190	AliMixture( 7, "SPD Water $", awat, zwat, denswat, -2, wwat);
191	AliMixture( 8, "SPD Freon$", afre, zfre, densfre, -2, wfre);
192	// **
193	AliMedium(200, "SPD Si$", 0, 1, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
194	AliMedium(201, "SPD Si chip$", 1, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
195	AliMedium(202, "SPD Si bus$", 2, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
196	AliMedium(203, "SPD C$", 3, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
197	AliMedium(204, "SPD Air$", 4, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
198	AliMedium(205, "SPD Vacuum$", 5, 0, ISXFLD, SXMGMX, 10., 1., .1, .1, 10.);
199	AliMedium(206, "SPD Al$", 6, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
200	AliMedium(207, "SPD Water $", 7, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
201	AliMedium(208, "SPD Freon$", 8, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
202
203	// 225-249 --> Silicon Drift Detectors (detectors, chips, buses, cooling,..)
204
205	AliMaterial(25, "SDD Si$", 28.0855, 14., 2.33, 9.36, 999);
206	AliMaterial(26, "SDD Si chip$", 28.0855, 14., 2.33, 9.36, 999);
207	AliMaterial(27, "SDD Si bus$", 28.0855, 14., 2.33, 9.36, 999);
208	AliMaterial(28, "SDD C$", 12.011, 6., 2.265,18.8, 999);
209	// v. dens
210	AliMaterial(29, "SDD Air$", 14.61, 7.3, .001205, 30423., 999);
211	AliMaterial(30, "SDD Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
212	AliMaterial(31, "SDD Al$", 26.981539, 13., 2.6989, 8.9, 999);
213	// After a call with ratios by number (negative number of elements),
214	// the ratio array is changed to the ratio by weight, so all successive
215	// calls with the same array must specify the number of elements as
216	// positive
217	AliMixture(32, "SDD Water $", awat, zwat, denswat, 2, wwat);
218	// After a call with ratios by number (negative number of elements),
219	// the ratio array is changed to the ratio by weight, so all successive
220	// calls with the same array must specify the number of elements as
221	// positive
222	AliMixture( 33, "SDD Freon$", afre, zfre, densfre, 2, wfre);
223	AliMixture( 34, "SDD PCB$", apcb, zpcb, denspcb, 3, wpcb);
224	AliMaterial(35, "SDD Copper$", 63.546, 29., 8.96, 1.43, 999);
225	AliMixture( 36, "SDD Ceramics$", acer, zcer, denscer, -5, wcer);
226	AliMaterial(37, "SDD Kapton$", 12.011, 6., 1.3, 31.27, 999);
227	// **
228	// check A and Z
229	AliMedium(225, "SDD Si$", 25, 1, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
230	AliMedium(226, "SDD Si chip$", 26, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
231	AliMedium(227, "SDD Si bus$", 27, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
232	AliMedium(228, "SDD C$", 28, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
233	AliMedium(229, "SDD Air$", 29, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
234	AliMedium(230, "SDD Vacuum$", 30, 0, ISXFLD, SXMGMX, 10., 1., .1, .1, 10.);
235	AliMedium(231, "SDD Al$", 31, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
236	AliMedium(232, "SDD Water $", 32, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
237	AliMedium(233, "SDD Freon$", 33, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
238	AliMedium(234, "SDD PCB$", 34, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
239	AliMedium(235, "SDD Copper$", 35, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
240	AliMedium(236, "SDD Ceramics$",36, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
241	AliMedium(237, "SDD Kapton$", 37, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
242
243	// 250-274 --> Silicon Strip Detectors (detectors, chips, buses, cooling,..)
244
245	AliMaterial(50, "SSD Si$", 28.0855, 14., 2.33, 9.36, 999.);
246	AliMaterial(51, "SSD Si chip$", 28.0855, 14., 2.33, 9.36, 999.);
247	AliMaterial(52, "SSD Si bus$", 28.0855, 14., 2.33, 9.36, 999.);
248	AliMaterial(53, "SSD C$", 12.011, 6., 2.265,18.8, 999.);
249	// v. dens
250	AliMaterial(54, "SSD Air$", 14.61, 7.3, .001205, 30423., 999);
251	AliMaterial(55, "SSD Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
252	AliMaterial(56, "SSD Al$", 26.981539, 13., 2.6989, 8.9, 999);
253	// After a call with ratios by number (negative number of elements),
254	// the ratio array is changed to the ratio by weight, so all successive
255	// calls with the same array must specify the number of elements as
256	// positive
257	AliMixture(57, "SSD Water $", awat, zwat, denswat, 2, wwat);
258	// After a call with ratios by number (negative number of elements),
259	// the ratio array is changed to the ratio by weight, so all successive
260	// calls with the same array must specify the number of elements as
261	// positive
262	AliMixture(58, "SSD Freon$", afre, zfre, densfre, 2, wfre);
263	AliMixture(59, "SSD PCB$", apcb, zpcb, denspcb, 3, wpcb);
264	AliMaterial(60, "SSD Copper$", 63.546, 29., 8.96, 1.43, 999.);
265	// After a call with ratios by number (negative number of elements),
266	// the ratio array is changed to the ratio by weight, so all successive
267	// calls with the same array must specify the number of elements as
268	// positive
269	AliMixture( 61, "SSD Ceramics$", acer, zcer, denscer, 5, wcer);
270	AliMaterial(62, "SSD Kapton$", 12.011, 6., 1.3, 31.27, 999.);
271	// check A and Z
272	AliMaterial(63, "SDD G10FR4$", 17.749, 8.875, 1.8, 21.822, 999.);
273	// **
274	AliMedium(250, "SSD Si$", 50, 1, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
275	AliMedium(251, "SSD Si chip$", 51, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
276	AliMedium(252, "SSD Si bus$", 52, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
277	AliMedium(253, "SSD C$", 53, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
278	AliMedium(254, "SSD Air$", 54, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
279	AliMedium(255, "SSD Vacuum$", 55, 0, ISXFLD, SXMGMX, 10., 1., .1, .1, 10.);
280	AliMedium(256, "SSD Al$", 56, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
281	AliMedium(257, "SSD Water $", 57, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
282	AliMedium(258, "SSD Freon$", 58, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
283	AliMedium(259, "SSD PCB$", 59, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
284	AliMedium(260, "SSD Copper$", 60, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
285	AliMedium(261, "SSD Ceramics$",61, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
286	AliMedium(262, "SSD Kapton$", 62, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
287	AliMedium(263, "SSD G10FR4$", 63, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
288
289	// 275-299 --> General (end-caps, frames, cooling, cables, etc.)
290
291	AliMaterial(75, "GEN C$", 12.011, 6., 2.265, 18.8, 999.);
292	// verify density
293	AliMaterial(76, "GEN Air$", 14.61, 7.3, .001205, 30423., 999);
294	AliMaterial(77, "GEN Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
295	AliMixture( 78, "GEN POLYETHYL$", apoly, zpoly, .95, -2, wpoly);
296	AliMixture( 79, "GEN SERVICES$", aserv, zserv, 4.68, 4, wserv);
297	AliMaterial(80, "GEN Copper$", 63.546, 29., 8.96, 1.43, 999.);
298	// After a call with ratios by number (negative number of elements),
299	// the ratio array is changed to the ratio by weight, so all successive
300	// calls with the same array must specify the number of elements as
301	// positive
302	AliMixture(81, "GEN Water $", awat, zwat, denswat, 2, wwat);
303	// **
304	AliMedium(275, "GEN C$", 75, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
305	AliMedium(276, "GEN Air$", 76, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
306	AliMedium(277, "GEN Vacuum$", 77, 0, ISXFLD, SXMGMX, 10., .1, .1, .1, 10.);
307	AliMedium(278, "GEN POLYETHYL$", 78, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
308	AliMedium(279, "GEN SERVICES$", 79, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
309	AliMedium(280, "GEN Copper$", 80, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
310	AliMedium(281, "GEN Water $", 81, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
311	}
312
313	//_____________________________________________________________________________
314	Int_t AliITS::DistancetoPrimitive(Int_t , Int_t )
315	{
316	//
317	// Distance from mouse to ITS on the screen. Dummy routine
318	//
319	return 9999;
320	}
321
322	//_____________________________________________________________________________
323	void AliITS::Init()
324	{
325	//
326	// Initialise ITS after it has been built
327	//
328	Int_t i;
329	AliMC* pMC = AliMC::GetMC();
330	//
331	printf("\n");
332	for(i=0;i<35;i++) printf("*");
333	printf(" ITS_INIT ");
334	for(i=0;i<35;i++) printf("*");
335	printf("\n");
336	//
337	//
338	fIdSens1=pMC->VolId("ITS1");
339	fIdSens2=pMC->VolId("ITS2");
340	fIdSens3=pMC->VolId("ITS3");
341	fIdSens4=pMC->VolId("ITS4");
342	fIdSens5=pMC->VolId("ITS5");
343	fIdSens6=pMC->VolId("ITS6");
344	//
345	for(i=0;i<80;i++) printf("*");
346	printf("\n");
347	}
348
349	//_____________________________________________________________________________
350	void AliITS::MakeBranch(Option_t* option)
351	{
352	//
353	// Create Tree branches for the ITS.
354	//
355	Int_t buffersize = 4000;
356	char branchname[10];
357	sprintf(branchname,"%s",GetName());
358
359	AliDetector::MakeBranch(option);
360
361	char *D = strstr(option,"D");
362
363	if (fDigits && gAlice->TreeD() && D) {
364	gAlice->TreeD()->Branch(branchname,&fDigits, buffersize);
365	printf("Making Branch %s for digits\n",branchname);
366	}
367	}
368
369	//_____________________________________________________________________________
370	void AliITS::SetEUCLID(Bool_t euclid)
371	{
372	//
373	// set euclid output flag
374	//
375	fEuclidOut=euclid;
376	}
377
378	ClassImp(AliITShit)
379
380	//_____________________________________________________________________________
381	AliITShit::AliITShit(Int_t shunt, Int_t track, Int_t vol, Float_t hits):
382	AliHit(shunt, track)
383	{
384	//
385	// Create ITS hit
386	//
387	fLayer = vol[0]; // Layer number
388	fLadder = vol[2]; // Ladder number
389	fDet = vol[1]; // Detector number
390	fX = hits[0];
391	fY = hits[1];
392	fZ = hits[2];
393	fPx = hits[3];
394	fPy = hits[4];
395	fPz = hits[5];
396	fDestep = hits[6];
397	}
398
399	ClassImp(AliITSdigit)
400
401	//_____________________________________________________________________________
402	AliITSdigit::AliITSdigit(Int_t tracks, Int_t digits):
403	AliDigit(tracks)
404	{
405	//
406	// Create ITS digit
407	//
408	fEvent = digits[0];
409	fLayer = digits[1];
410	fDet = digits[2];
411	fNoverl = digits[3];
412	}