* provided "as is" without express or implied warranty. *
**************************************************************************/
-/*
- $Log$
- Revision 1.5 2000/04/19 13:28:46 morsch
- Major changes in geometry (parametrised), materials (updated) and
- step manager (diagnostics) (JB, AM)
+/* $Id$ */
-*/
+/////////////////////////////////////////////////////////////
+// Manager and hits classes for set: RICH default version //
+/////////////////////////////////////////////////////////////
+#include "Riostream.h"
-////////////////////////////////////////////////////////
-// Manager and hits classes for set:RICH version 0 //
-/////////////////////////////////////////////////////////
-
-#include <TTUBE.h>
#include <TNode.h>
#include <TRandom.h>
+#include <TTUBE.h>
+#include <TVirtualMC.h>
-#include "AliRICHv0.h"
-#include "AliRun.h"
-#include "AliMC.h"
-#include "iostream.h"
-#include "AliCallf77.h"
#include "AliConst.h"
#include "AliPDG.h"
-#include "TGeant3.h"
+#include "AliRICHGeometry.h"
+#include "AliRICHResponse.h"
+#include "AliRICHResponseV0.h"
+#include "AliRICHSegmentationV0.h"
+#include "AliRICHv0.h"
+#include "AliRun.h"
ClassImp(AliRICHv0)
-//___________________________________________
-AliRICHv0::AliRICHv0() : AliRICH()
-{
- //fChambers = 0;
-}
-
//___________________________________________
AliRICHv0::AliRICHv0(const char *name, const char *title)
- : AliRICH(name,title)
-{
- fCkov_number=0;
- fFreon_prod=0;
-
- fChambers = new TObjArray(7);
- for (Int_t i=0; i<7; i++) {
-
- (*fChambers)[i] = new AliRICHChamber();
-
- }
-}
-
-
-//___________________________________________
-void AliRICHv0::CreateGeometry()
-{
- //
- // Create the geometry for RICH version 1
- //
- // Modified by: N. Colonna (INFN - BARI, Nicola.Colonna@ba.infn.it)
- // R.A. Fini (INFN - BARI, Rosanna.Fini@ba.infn.it)
- // R.A. Loconsole (Bari University, loco@riscom.ba.infn.it)
- //
- //Begin_Html
- /*
- <img src="picts/AliRICHv1.gif">
- */
- //End_Html
- //Begin_Html
- /*
- <img src="picts/AliRICHv1Tree.gif">
- */
- //End_Html
-
- AliRICH *RICH = (AliRICH *) gAlice->GetDetector("RICH");
- AliRICHSegmentation* segmentation;
- AliRICHGeometry* geometry;
- AliRICHChamber* iChamber;
-
- iChamber = &(RICH->Chamber(0));
- segmentation=iChamber->GetSegmentationModel(0);
- geometry=iChamber->GetGeometryModel();
-
-
- Int_t *idtmed = fIdtmed->GetArray()-999;
-
- Int_t i;
- Float_t zs;
- Int_t idrotm[1099];
- Float_t par[3];
-
- // --- Define the RICH detector
- // External aluminium box
- par[0] = 71.1;
- par[1] = 11.5; //Original Settings
- par[2] = 73.15;
- /*par[0] = 73.15;
- par[1] = 11.5;
- par[2] = 71.1;*/
- gMC->Gsvolu("RICH", "BOX ", idtmed[1009], par, 3);
-
- // Sensitive part of the whole RICH
- par[0] = 64.8;
- par[1] = 11.5; //Original Settings
- par[2] = 66.55;
- /*par[0] = 66.55;
- par[1] = 11.5;
- par[2] = 64.8;*/
- gMC->Gsvolu("SRIC", "BOX ", idtmed[1000], par, 3);
-
- // Honeycomb
- par[0] = 63.1;
- par[1] = .188; //Original Settings
- par[2] = 66.55;
- /*par[0] = 66.55;
- par[1] = .188;
- par[2] = 63.1;*/
- gMC->Gsvolu("HONE", "BOX ", idtmed[1001], par, 3);
-
- // Aluminium sheet
- par[0] = 63.1;
- par[1] = .025; //Original Settings
- par[2] = 66.55;
- /*par[0] = 66.5;
- par[1] = .025;
- par[2] = 63.1;*/
- gMC->Gsvolu("ALUM", "BOX ", idtmed[1009], par, 3);
-
- // Quartz
- par[0] = geometry->GetQuartzWidth()/2;
- par[1] = geometry->GetQuartzThickness()/2;
- par[2] = geometry->GetQuartzLength()/2;
- /*par[0] = 63.1;
- par[1] = .25; //Original Settings
- par[2] = 65.5;*/
- /*par[0] = geometry->GetQuartzWidth()/2;
- par[1] = geometry->GetQuartzThickness()/2;
- par[2] = geometry->GetQuartzLength()/2;*/
- //printf("\n\n\n\n\n\n\n\\n\n\n\n Gap Thickness: %f %f %f\n\n\n\n\n\n\n\n\n\n\n\n\n\n",par[0],par[1],par[2]);
- gMC->Gsvolu("QUAR", "BOX ", idtmed[1002], par, 3);
-
- // Spacers (cylinders)
- par[0] = 0.;
- par[1] = .5;
- par[2] = geometry->GetFreonThickness()/2;
- gMC->Gsvolu("SPAC", "TUBE", idtmed[1002], par, 3);
-
- // Opaque quartz
- par[0] = 61.95;
- par[1] = .2; //Original Settings
- par[2] = 66.5;
- /*par[0] = 66.5;
- par[1] = .2;
- par[2] = 61.95;*/
- gMC->Gsvolu("OQUA", "BOX ", idtmed[1007], par, 3);
-
- // Frame of opaque quartz
- par[0] = geometry->GetOuterFreonWidth()/2;
- par[1] = geometry->GetFreonThickness()/2;
- par[2] = geometry->GetOuterFreonLength()/2 + 1;
- /*par[0] = 20.65;
- par[1] = .5; //Original Settings
- par[2] = 66.5;*/
- /*par[0] = 66.5;
- par[1] = .5;
- par[2] = 20.65;*/
- gMC->Gsvolu("OQF1", "BOX ", idtmed[1007], par, 3);
-
- par[0] = geometry->GetInnerFreonWidth()/2;
- par[1] = geometry->GetFreonThickness()/2;
- par[2] = geometry->GetInnerFreonLength()/2 + 1;
- gMC->Gsvolu("OQF2", "BOX ", idtmed[1007], par, 3);
-
- // Little bar of opaque quartz
- par[0] = .275;
- par[1] = geometry->GetQuartzThickness()/2;
- par[2] = geometry->GetInnerFreonLength()/2 - 2.4;
- /*par[0] = .275;
- par[1] = .25; //Original Settings
- par[2] = 63.1;*/
- /*par[0] = 63.1;
- par[1] = .25;
- par[2] = .275;*/
- gMC->Gsvolu("BARR", "BOX ", idtmed[1007], par, 3);
-
- // Freon
- par[0] = geometry->GetOuterFreonWidth()/2;
- par[1] = geometry->GetFreonThickness()/2;
- par[2] = geometry->GetOuterFreonLength()/2;
- /*par[0] = 20.15;
- par[1] = .5; //Original Settings
- par[2] = 65.5;*/
- /*par[0] = 65.5;
- par[1] = .5;
- par[2] = 20.15;*/
- gMC->Gsvolu("FRE1", "BOX ", idtmed[1003], par, 3);
-
- par[0] = geometry->GetInnerFreonWidth()/2;
- par[1] = geometry->GetFreonThickness()/2;
- par[2] = geometry->GetInnerFreonLength()/2;
- gMC->Gsvolu("FRE2", "BOX ", idtmed[1003], par, 3);
-
- // Methane
- par[0] = 64.8;
- par[1] = geometry->GetGapThickness()/2;
- //printf("\n\n\n\n\n\n\n\\n\n\n\n Gap Thickness: %f\n\n\n\n\n\n\n\n\n\n\n\n\n\n",par[1]);
- par[2] = 64.8;
- gMC->Gsvolu("META", "BOX ", idtmed[1004], par, 3);
-
- // Methane gap
- par[0] = 64.8;
- par[1] = geometry->GetProximityGapThickness()/2;
- //printf("\n\n\n\n\n\n\n\\n\n\n\n Gap Thickness: %f\n\n\n\n\n\n\n\n\n\n\n\n\n\n",par[1]);
- par[2] = 64.8;
- gMC->Gsvolu("GAP ", "BOX ", idtmed[1008], par, 3);
-
- // CsI photocathode
- par[0] = 64.8;
- par[1] = .25;
- par[2] = 64.8;
- gMC->Gsvolu("CSI ", "BOX ", idtmed[1005], par, 3);
-
- // Anode grid
- par[0] = 0.;
- par[1] = .001;
- par[2] = 20.;
- gMC->Gsvolu("GRID", "TUBE", idtmed[1006], par, 3);
-
- // --- Places the detectors defined with GSVOLU
- // Place material inside RICH
- gMC->Gspos("SRIC", 1, "RICH", 0., 0., 0., 0, "ONLY");
-
- gMC->Gspos("ALUM", 1, "SRIC", 0., 1.276 - geometry->GetGapThickness()/2 - geometry->GetQuartzThickness() - geometry->GetFreonThickness()- .4 -.05 - .376 -.025, 0., 0, "ONLY");
- gMC->Gspos("HONE", 1, "SRIC", 0., 1.276- geometry->GetGapThickness()/2 - geometry->GetQuartzThickness() - geometry->GetFreonThickness()- .4 -.05 - .188, 0., 0, "ONLY");
- gMC->Gspos("ALUM", 2, "SRIC", 0., 1.276 - geometry->GetGapThickness()/2 - geometry->GetQuartzThickness() - geometry->GetFreonThickness()- .4 - .025, 0., 0, "ONLY");
- gMC->Gspos("OQUA", 1, "SRIC", 0., 1.276 - geometry->GetGapThickness()/2 - geometry->GetQuartzThickness() - geometry->GetFreonThickness()- .2, 0., 0, "ONLY");
-
- AliMatrix(idrotm[1019], 0., 0., 90., 0., 90., 90.);
-
- Int_t nspacers = (Int_t)(TMath::Abs(geometry->GetInnerFreonLength()/14.4));
- //printf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n Spacers:%d\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n",nspacers);
-
- //for (i = 1; i <= 9; ++i) {
- //zs = (5 - i) * 14.4; //Original settings
- for (i = 0; i <= nspacers; i++) {
- zs = (TMath::Abs(nspacers/2) - i) * 14.4;
- gMC->Gspos("SPAC", i, "FRE1", 6.7, 0., zs, idrotm[1019], "ONLY"); //Original settings
- //gMC->Gspos("SPAC", i, "FRE1", zs, 0., 6.7, idrotm[1019], "ONLY");
- }
- //for (i = 10; i <= 18; ++i) {
- //zs = (14 - i) * 14.4; //Original settings
- for (i = nspacers; i < nspacers*2; ++i) {
- zs = (nspacers + TMath::Abs(nspacers/2) - i) * 14.4;
- gMC->Gspos("SPAC", i, "FRE1", -6.7, 0., zs, idrotm[1019], "ONLY"); //Original settings
- //gMC->Gspos("SPAC", i, "FRE1", zs, 0., -6.7, idrotm[1019], "ONLY");
- }
-
- //for (i = 1; i <= 9; ++i) {
- //zs = (5 - i) * 14.4; //Original settings
- for (i = 0; i <= nspacers; i++) {
- zs = (TMath::Abs(nspacers/2) - i) * 14.4;
- gMC->Gspos("SPAC", i, "FRE2", 6.7, 0., zs, idrotm[1019], "ONLY"); //Original settings
- //gMC->Gspos("SPAC", i, "FRE2", zs, 0., 6.7, idrotm[1019], "ONLY");
- }
- //for (i = 10; i <= 18; ++i) {
- //zs = (5 - i) * 14.4; //Original settings
- for (i = nspacers; i < nspacers*2; ++i) {
- zs = (nspacers + TMath::Abs(nspacers/2) - i) * 14.4;
- gMC->Gspos("SPAC", i, "FRE2", -6.7, 0., zs, idrotm[1019], "ONLY"); //Original settings
- //gMC->Gspos("SPAC", i, "FRE2", zs, 0., -6.7, idrotm[1019], "ONLY");
- }
-
- /*gMC->Gspos("FRE1", 1, "OQF1", 0., 0., 0., 0, "ONLY");
- gMC->Gspos("FRE2", 1, "OQF2", 0., 0., 0., 0, "ONLY");
- gMC->Gspos("OQF1", 1, "SRIC", 31.3, -4.724, 41.3, 0, "ONLY");
- gMC->Gspos("OQF2", 2, "SRIC", 0., -4.724, 0., 0, "ONLY");
- gMC->Gspos("OQF1", 3, "SRIC", -31.3, -4.724, -41.3, 0, "ONLY");
- gMC->Gspos("BARR", 1, "QUAR", -21.65, 0., 0., 0, "ONLY"); //Original settings
- gMC->Gspos("BARR", 2, "QUAR", 21.65, 0., 0., 0, "ONLY"); //Original settings
- gMC->Gspos("QUAR", 1, "SRIC", 0., -3.974, 0., 0, "ONLY");
- gMC->Gspos("GAP ", 1, "META", 0., 4.8, 0., 0, "ONLY");
- gMC->Gspos("META", 1, "SRIC", 0., 1.276, 0., 0, "ONLY");
- gMC->Gspos("CSI ", 1, "SRIC", 0., 6.526, 0., 0, "ONLY");*/
-
-
- gMC->Gspos("FRE1", 1, "OQF1", 0., 0., 0., 0, "ONLY");
- gMC->Gspos("FRE2", 1, "OQF2", 0., 0., 0., 0, "ONLY");
- gMC->Gspos("OQF1", 1, "SRIC", geometry->GetOuterFreonWidth()/2 + geometry->GetInnerFreonWidth()/2, 1.276 - geometry->GetGapThickness()/2- geometry->GetQuartzThickness() -geometry->GetFreonThickness()/2, 0., 0, "ONLY"); //Original settings (31.3)
- gMC->Gspos("OQF2", 2, "SRIC", 0., 1.276 - geometry->GetGapThickness()/2 - geometry->GetQuartzThickness() - geometry->GetFreonThickness()/2, 0., 0, "ONLY"); //Original settings
- gMC->Gspos("OQF1", 3, "SRIC", - (geometry->GetOuterFreonWidth()/2 + geometry->GetInnerFreonWidth()/2), 1.276 - geometry->GetGapThickness()/2 - geometry->GetQuartzThickness() - geometry->GetFreonThickness()/2, 0., 0, "ONLY"); //Original settings (-31.3)
- gMC->Gspos("BARR", 1, "QUAR", -21.65, 0., 0., 0, "ONLY"); //Original settings
- gMC->Gspos("BARR", 2, "QUAR", 21.65, 0., 0., 0, "ONLY"); //Original settings
- gMC->Gspos("QUAR", 1, "SRIC", 0., 1.276 - geometry->GetGapThickness()/2 - geometry->GetQuartzThickness()/2, 0., 0, "ONLY");
- gMC->Gspos("GAP ", 1, "META", 0., geometry->GetGapThickness()/2+ geometry->GetProximityGapThickness()/2, 0., 0, "ONLY");
- gMC->Gspos("META", 1, "SRIC", 0., 1.276, 0., 0, "ONLY");
- gMC->Gspos("CSI ", 1, "SRIC", 0., 1.276 + geometry->GetGapThickness()/2 + geometry->GetProximityGapThickness() + .25, 0., 0, "ONLY");
-
- // Place RICH inside ALICE apparatus
-
- AliMatrix(idrotm[1000], 90., 0., 70.69, 90., 19.31, -90.);
- AliMatrix(idrotm[1001], 90., -20., 90., 70., 0., 0.);
- AliMatrix(idrotm[1002], 90., 0., 90., 90., 0., 0.);
- AliMatrix(idrotm[1003], 90., 20., 90., 110., 0., 0.);
- AliMatrix(idrotm[1004], 90., 340., 108.2, 70., 18.2, 70.);
- AliMatrix(idrotm[1005], 90., 0., 109.31, 90., 19.31, 90.);
- AliMatrix(idrotm[1006], 90., 20., 108.2, 110., 18.2, 110.);
-
- gMC->Gspos("RICH", 1, "ALIC", 0., 471.9, 165.26, idrotm[1000], "ONLY");
- gMC->Gspos("RICH", 2, "ALIC", 171., 470., 0., idrotm[1001], "ONLY");
- gMC->Gspos("RICH", 3, "ALIC", 0., 500., 0., idrotm[1002], "ONLY");
- gMC->Gspos("RICH", 4, "ALIC", -171., 470., 0., idrotm[1003], "ONLY");
- gMC->Gspos("RICH", 5, "ALIC", 161.4, 443.4, -165.3, idrotm[1004], "ONLY");
- gMC->Gspos("RICH", 6, "ALIC", 0., 471.9, -165.3, idrotm[1005], "ONLY");
- gMC->Gspos("RICH", 7, "ALIC", -161.4, 443.4, -165.3, idrotm[1006], "ONLY");
-
-}
-
-
-//___________________________________________
-void AliRICHv0::CreateMaterials()
-{
- //
- // *** DEFINITION OF AVAILABLE RICH MATERIALS ***
- // ORIGIN : NICK VAN EIJNDHOVEN
- // Modified by: N. Colonna (INFN - BARI, Nicola.Colonna@ba.infn.it)
- // R.A. Fini (INFN - BARI, Rosanna.Fini@ba.infn.it)
- // R.A. Loconsole (Bari University, loco@riscom.ba.infn.it)
- //
- Int_t ISXFLD = gAlice->Field()->Integ();
- Float_t SXMGMX = gAlice->Field()->Max();
- Int_t i;
-
- /************************************Antonnelo's Values (14-vectors)*****************************************/
- /*
- Float_t ppckov[14] = { 5.63e-9,5.77e-9,5.9e-9,6.05e-9,6.2e-9,6.36e-9,6.52e-9,
- 6.7e-9,6.88e-9,7.08e-9,7.3e-9,7.51e-9,7.74e-9,8e-9 };
- Float_t rindex_quarz[14] = { 1.528309,1.533333,
- 1.538243,1.544223,1.550568,1.55777,
- 1.565463,1.574765,1.584831,1.597027,
- 1.611858,1.6277,1.6472,1.6724 };
- Float_t rindex_quarzo[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
- Float_t rindex_methane[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
- Float_t rindex_gri[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
- Float_t absco_freon[14] = { 179.0987,179.0987,
- 179.0987,179.0987,179.0987,142.92,56.65,13.95,10.43,7.07,2.03,.5773,.33496,0. };
- //Float_t absco_freon[14] = { 1e-5,1e-5,1e-5,1e-5,1e-5,1e-5,1e-5,1e-5,1e-5,
- // 1e-5,1e-5,1e-5,1e-5,1e-5 };
- Float_t absco_quarz[14] = { 64.035,39.98,35.665,31.262,27.527,22.815,21.04,17.52,
- 14.177,9.282,4.0925,1.149,.3627,.10857 };
- Float_t absco_quarzo[14] = { 1e-5,1e-5,1e-5,1e-5,1e-5,1e-5,1e-5,1e-5,1e-5,
- 1e-5,1e-5,1e-5,1e-5,1e-5 };
- Float_t absco_csi[14] = { 1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,
- 1e-4,1e-4,1e-4,1e-4 };
- Float_t absco_methane[14] = { 1e6,1e6,1e6,1e6,1e6,1e6,1e6,1e6,1e6,1e6,1e6,
- 1e6,1e6,1e6 };
- Float_t absco_gri[14] = { 1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,1e-4,
- 1e-4,1e-4,1e-4,1e-4 };
- Float_t effic_all[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
- Float_t effic_csi[14] = { 6e-4,.005,.0075,.01125,.045,.117,.135,.16575,
- .17425,.1785,.1836,.1904,.1938,.221 };
- Float_t effic_gri[14] = { 1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1.,1. };
- */
-
-
- /**********************************End of Antonnelo's Values**********************************/
-
- /**********************************Values from rich_media.f (31-vectors)**********************************/
-
-
- //Photons energy intervals
- Float_t ppckov[26];
- for (i=0;i<26;i++)
- {
- ppckov[i] = (Float_t(i)*0.1+5.5)*1e-9;
- //printf ("Energy intervals: %e\n",ppckov[i]);
- }
-
-
- //Refraction index for quarz
- Float_t rindex_quarz[26];
- Float_t e1= 10.666;
- Float_t e2= 18.125;
- Float_t f1= 46.411;
- Float_t f2= 228.71;
- for (i=0;i<26;i++)
- {
- Float_t ene=ppckov[i]*1e9;
- Float_t a=f1/(e1*e1 - ene*ene);
- Float_t b=f2/(e2*e2 - ene*ene);
- rindex_quarz[i] = TMath::Sqrt(1. + a + b );
- //printf ("Rindex_quarz: %e\n",rindex_quarz[i]);
- }
-
- //Refraction index for opaque quarz, methane and grid
- Float_t rindex_quarzo[26];
- Float_t rindex_methane[26];
- Float_t rindex_gri[26];
- for (i=0;i<26;i++)
- {
- rindex_quarzo[i]=1;
- rindex_methane[i]=1.000444;
- rindex_gri[i]=1;
- //printf ("Rindex_quarzo , etc: %e, %e, %e\n",rindex_quarzo[i], rindex_methane[i], rindex_gri[i]=1);
- }
-
- //Absorption index for freon
- Float_t absco_freon[26] = {179.0987, 179.0987, 179.0987, 179.0987, 179.0987, 179.0987, 179.0987, 179.0987,
- 179.0987, 142.9206, 56.64957, 25.58622, 13.95293, 12.03905, 10.42953, 8.804196,
- 7.069031, 4.461292, 2.028366, 1.293013, .577267, .40746, .334964, 0., 0., 0.};
-
- //Absorption index for quarz
- /*Float_t Qzt [21] = {.0,.0,.005,.04,.35,.647,.769,.808,.829,.844,.853,.858,.869,.887,.903,.902,.902,
- .906,.907,.907,.907};
- Float_t Wavl2[] = {150.,155.,160.0,165.0,170.0,175.0,180.0,185.0,190.0,195.0,200.0,205.0,210.0,
- 215.0,220.0,225.0,230.0,235.0,240.0,245.0,250.0};
- Float_t absco_quarz[31];
- for (Int_t i=0;i<31;i++)
- {
- Float_t Xlam = 1237.79 / (ppckov[i]*1e9);
- if (Xlam <= 160) absco_quarz[i] = 0;
- if (Xlam > 250) absco_quarz[i] = 1;
- else
- {
- for (Int_t j=0;j<21;j++)
- {
- //printf ("Passed\n");
- if (Xlam > Wavl2[j] && Xlam < Wavl2[j+1])
- {
- Float_t Dabs = (Qzt[j+1] - Qzt[j])/(Wavl2[j+1] - Wavl2[j]);
- Float_t Abso = Qzt[j] + Dabs*(Xlam - Wavl2[j]);
- absco_quarz[i] = -5.0/(TMath::Log(Abso));
- }
- }
- }
- printf ("Absco_quarz: %e Absco_freon: %e for energy: %e\n",absco_quarz[i],absco_freon[i],ppckov[i]);
- }*/
-
- /*Float_t absco_quarz[31] = {49.64211, 48.41296, 47.46989, 46.50492, 45.13682, 44.47883, 43.1929 , 41.30922, 40.5943 ,
- 39.82956, 38.98623, 38.6247 , 38.43448, 37.41084, 36.22575, 33.74852, 30.73901, 24.25086,
- 17.94531, 11.88753, 5.99128, 3.83503, 2.36661, 1.53155, 1.30582, 1.08574, .8779708,
- .675275, 0., 0., 0.};
-
- for (Int_t i=0;i<31;i++)
- {
- absco_quarz[i] = absco_quarz[i]/10;
- }*/
-
- Float_t absco_quarz [26] = {105.8, 65.52, 48.58, 42.85, 35.79, 31.262, 28.598, 27.527, 25.007, 22.815, 21.004,
- 19.266, 17.525, 15.878, 14.177, 11.719, 9.282, 6.62, 4.0925, 2.601, 1.149, .667, .3627,
- .192, .1497, .10857};
-
- //Absorption index for methane
- Float_t absco_methane[26];
- for (i=0;i<26;i++)
- {
- absco_methane[i]=AbsoCH4(ppckov[i]*1e9);
- //printf("Absco_methane: %e for energy: %e\n", absco_methane[i],ppckov[i]*1e9);
- }
-
- //Absorption index for opaque quarz, csi and grid, efficiency for all and grid
- Float_t absco_quarzo[26];
- Float_t absco_csi[26];
- Float_t absco_gri[26];
- Float_t effic_all[26];
- Float_t effic_gri[26];
- for (i=0;i<26;i++)
- {
- absco_quarzo[i]=1e-5;
- absco_csi[i]=1e-4;
- absco_gri[i]=1e-4;
- effic_all[i]=1;
- effic_gri[i]=1;
- //printf ("All must be 1: %e, %e, %e, %e, %e\n",absco_quarzo[i],absco_csi[i],absco_gri[i],effic_all[i],effic_gri[i]);
- }
-
- //Efficiency for csi
-
- Float_t effic_csi[26] = {0.000199999995, 0.000600000028, 0.000699999975, 0.00499999989, 0.00749999983, 0.010125,
- 0.0242999997, 0.0405000001, 0.0688500032, 0.105299994, 0.121500008, 0.141749993, 0.157949999,
- 0.162, 0.166050002, 0.167669997, 0.174299985, 0.176789999, 0.179279998, 0.182599992, 0.18592,
- 0.187579989, 0.189239994, 0.190899998, 0.207499996, 0.215799987};
-
-
-
- //FRESNEL LOSS CORRECTION FOR PERPENDICULAR INCIDENCE AND
- //UNPOLARIZED PHOTONS
-
- for (i=0;i<26;i++)
- {
- effic_csi[i] = effic_csi[i]/(1.-Fresnel(ppckov[i]*1e9,1.,0));
- //printf ("Fresnel result: %e for energy: %e\n",Fresnel(ppckov[i]*1e9,1.,0),ppckov[i]*1e9);
- }
-
- /*******************************************End of rich_media.f***************************************/
-
-
-
-
-
-
- Float_t afre[2], agri, amet[2], aqua[2], ahon, zfre[2], zgri, zhon,
- zmet[2], zqua[2];
- Int_t nlmatfre;
- Float_t densquao;
- Int_t nlmatmet, nlmatqua;
- Float_t wmatquao[2], rindex_freon[26];
- Float_t aquao[2], epsil, stmin, zquao[2];
- Int_t nlmatquao;
- Float_t radlal, densal, tmaxfd, deemax, stemax;
- Float_t aal, zal, radlgri, densfre, radlhon, densgri, denshon,densqua, densmet, wmatfre[2], wmatmet[2], wmatqua[2];
-
- Int_t *idtmed = fIdtmed->GetArray()-999;
-
- TGeant3 *geant3 = (TGeant3*) gMC;
-
- // --- Photon energy (GeV)
- // --- Refraction indexes
- for (i = 0; i < 26; ++i) {
- rindex_freon[i] = ppckov[i] * .0172 * 1e9 + 1.177;
- //printf ("Rindex_freon: %e \n Effic_csi: %e for energy: %e\n",rindex_freon[i], effic_csi[i], ppckov[i]);
- }
-
- // --- Detection efficiencies (quantum efficiency for CsI)
- // --- Define parameters for honeycomb.
- // Used carbon of equivalent rad. lenght
-
- ahon = 12.01;
- zhon = 6.;
- denshon = 2.265;
- radlhon = 18.8;
-
- // --- Parameters to include in GSMIXT, relative to Quarz (SiO2)
-
- aqua[0] = 28.09;
- aqua[1] = 16.;
- zqua[0] = 14.;
- zqua[1] = 8.;
- densqua = 2.64;
- nlmatqua = -2;
- wmatqua[0] = 1.;
- wmatqua[1] = 2.;
-
- // --- Parameters to include in GSMIXT, relative to opaque Quarz (SiO2)
-
- aquao[0] = 28.09;
- aquao[1] = 16.;
- zquao[0] = 14.;
- zquao[1] = 8.;
- densquao = 2.64;
- nlmatquao = -2;
- wmatquao[0] = 1.;
- wmatquao[1] = 2.;
-
- // --- Parameters to include in GSMIXT, relative to Freon (C6F14)
-
- afre[0] = 12.;
- afre[1] = 19.;
- zfre[0] = 6.;
- zfre[1] = 9.;
- densfre = 1.7;
- nlmatfre = -2;
- wmatfre[0] = 6.;
- wmatfre[1] = 14.;
-
- // --- Parameters to include in GSMIXT, relative to methane (CH4)
-
- amet[0] = 12.01;
- amet[1] = 1.;
- zmet[0] = 6.;
- zmet[1] = 1.;
- densmet = 7.17e-4;
- nlmatmet = -2;
- wmatmet[0] = 1.;
- wmatmet[1] = 4.;
-
- // --- Parameters to include in GSMIXT, relative to anode grid (Cu)
-
- agri = 63.54;
- zgri = 29.;
- densgri = 8.96;
- radlgri = 1.43;
-
- // --- Parameters to include in GSMATE related to aluminium sheet
-
- aal = 26.98;
- zal = 13.;
- densal = 2.7;
- radlal = 8.9;
-
- AliMaterial(1, "Air $", 14.61, 7.3, .001205, 30420., 67500);
- AliMaterial(6, "HON", ahon, zhon, denshon, radlhon, 0);
- AliMaterial(16, "CSI", ahon, zhon, denshon, radlhon, 0);
- AliMixture(20, "QUA", aqua, zqua, densqua, nlmatqua, wmatqua);
- AliMixture(21, "QUAO", aquao, zquao, densquao, nlmatquao, wmatquao);
- AliMixture(30, "FRE", afre, zfre, densfre, nlmatfre, wmatfre);
- AliMixture(40, "MET", amet, zmet, densmet, nlmatmet, wmatmet);
- AliMixture(41, "METG", amet, zmet, densmet, nlmatmet, wmatmet);
- AliMaterial(11, "GRI", agri, zgri, densgri, radlgri, 0);
- AliMaterial(50, "ALUM", aal, zal, densal, radlal, 0);
-
- tmaxfd = -10.;
- stemax = -.1;
- deemax = -.2;
- epsil = .001;
- stmin = -.001;
-
- AliMedium(1, "DEFAULT MEDIUM AIR$", 1, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
- AliMedium(2, "HONEYCOMB$", 6, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
- AliMedium(3, "QUARZO$", 20, 1, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
- AliMedium(4, "FREON$", 30, 1, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
- AliMedium(5, "METANO$", 40, 1, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
- AliMedium(6, "CSI$", 16, 1, ISXFLD, SXMGMX,tmaxfd, stemax, deemax, epsil, stmin);
- AliMedium(7, "GRIGLIA$", 11, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
- AliMedium(8, "QUARZOO$", 21, 1, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
- AliMedium(9, "GAP$", 41, 1, ISXFLD, SXMGMX,tmaxfd, .1, -deemax, epsil, -stmin);
- AliMedium(10, "ALUMINUM$", 50, 1, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
-
-
- geant3->Gsckov(idtmed[1000], 26, ppckov, absco_methane, effic_all, rindex_methane);
- geant3->Gsckov(idtmed[1001], 26, ppckov, absco_methane, effic_all, rindex_methane);
- geant3->Gsckov(idtmed[1002], 26, ppckov, absco_quarz, effic_all,rindex_quarz);
- geant3->Gsckov(idtmed[1003], 26, ppckov, absco_freon, effic_all,rindex_freon);
- geant3->Gsckov(idtmed[1004], 26, ppckov, absco_methane, effic_all, rindex_methane);
- geant3->Gsckov(idtmed[1005], 26, ppckov, absco_csi, effic_csi, rindex_methane);
- geant3->Gsckov(idtmed[1006], 26, ppckov, absco_gri, effic_gri, rindex_gri);
- geant3->Gsckov(idtmed[1007], 26, ppckov, absco_quarzo, effic_all, rindex_quarzo);
- geant3->Gsckov(idtmed[1008], 26, ppckov, absco_methane, effic_all, rindex_methane);
- geant3->Gsckov(idtmed[1009], 26, ppckov, absco_gri, effic_gri, rindex_gri);
-}
-
-//___________________________________________
-
-Float_t AliRICHv0::Fresnel(Float_t ene,Float_t pdoti, Bool_t pola)
-{
-
- //ENE(EV), PDOTI=COS(INC.ANG.), PDOTR=COS(POL.PLANE ROT.ANG.)
-
- Float_t en[36] = {5.0,5.1,5.2,5.3,5.4,5.5,5.6,5.7,5.8,5.9,6.0,6.1,6.2,
- 6.3,6.4,6.5,6.6,6.7,6.8,6.9,7.0,7.1,7.2,7.3,7.4,7.5,7.6,7.7,
- 7.8,7.9,8.0,8.1,8.2,8.3,8.4,8.5};
-
-
- Float_t csin[36] = {2.14,2.21,2.33,2.48,2.76,2.97,2.99,2.59,2.81,3.05,
- 2.86,2.53,2.55,2.66,2.79,2.96,3.18,3.05,2.84,2.81,2.38,2.11,
- 2.01,2.13,2.39,2.73,3.08,3.15,2.95,2.73,2.56,2.41,2.12,1.95,
- 1.72,1.53};
-
- Float_t csik[36] = {0.,0.,0.,0.,0.,0.196,0.408,0.208,0.118,0.49,0.784,0.543,
- 0.424,0.404,0.371,0.514,0.922,1.102,1.139,1.376,1.461,1.253,0.878,
- 0.69,0.612,0.649,0.824,1.347,1.571,1.678,1.763,1.857,1.824,1.824,
- 1.714,1.498};
- Float_t xe=ene;
- Int_t j=Int_t(xe*10)-49;
- Float_t cn=csin[j]+((csin[j+1]-csin[j])/0.1)*(xe-en[j]);
- Float_t ck=csik[j]+((csik[j+1]-csik[j])/0.1)*(xe-en[j]);
-
- //FORMULAE FROM HANDBOOK OF OPTICS, 33.23 OR
- //W.R. HUNTER, J.O.S.A. 54 (1964),15 , J.O.S.A. 55(1965),1197
-
- Float_t sinin=TMath::Sqrt(1-pdoti*pdoti);
- Float_t tanin=sinin/pdoti;
-
- Float_t c1=cn*cn-ck*ck-sinin*sinin;
- Float_t c2=4*cn*cn*ck*ck;
- Float_t aO=TMath::Sqrt(0.5*(TMath::Sqrt(c1*c1+c2)+c1));
- Float_t b2=0.5*(TMath::Sqrt(c1*c1+c2)-c1);
-
- Float_t rs=((aO-pdoti)*(aO-pdoti)+b2)/((aO+pdoti)*(aO+pdoti)+b2);
- Float_t rp=rs*((aO-sinin*tanin)*(aO-sinin*tanin)+b2)/((aO+sinin*tanin)*(aO+sinin*tanin)+b2);
-
-
- //CORRECTION FACTOR FOR SURFACE ROUGHNESS
- //B.J. STAGG APPLIED OPTICS, 30(1991),4113
-
- Float_t sigraf=18.;
- Float_t lamb=1240/ene;
- Float_t fresn;
-
- Float_t rO=TMath::Exp(-(4*TMath::Pi()*pdoti*sigraf/lamb)*(4*TMath::Pi()*pdoti*sigraf/lamb));
-
- if(pola)
- {
- Float_t pdotr=0.8; //DEGREE OF POLARIZATION : 1->P , -1->S
- fresn=0.5*(rp*(1+pdotr)+rs*(1-pdotr));
- }
- else
- fresn=0.5*(rp+rs);
-
- fresn = fresn*rO;
- return(fresn);
-}
-
-//__________________________________________
-
-Float_t AliRICHv0::AbsoCH4(Float_t x)
+ :AliRICH(name,title)
{
-
- //LOSCH,SCH4(9),WL(9),EM(9),ALENGTH(31)
- Float_t sch4[9] = {.12,.16,.23,.38,.86,2.8,7.9,28.,80.}; //MB X 10^22
- //Float_t wl[9] = {153.,152.,151.,150.,149.,148.,147.,146.,145};
- Float_t em[9] = {8.1,8.158,8.212,8.267,8.322,8.378,8.435,8.493,8.55};
- const Float_t losch=2.686763E19; // LOSCHMIDT NUMBER IN CM-3
- const Float_t igas1=100, igas2=0, oxy=10., wat=5., pre=750.,tem=283.;
- Float_t pn=pre/760.;
- Float_t tn=tem/273.16;
-
-
-// ------- METHANE CROSS SECTION -----------------
-// ASTROPH. J. 214, L47 (1978)
-
- Float_t sm=0;
- if (x<7.75)
- sm=.06e-22;
-
- if(x>=7.75 && x<=8.1)
- {
- Float_t c0=-1.655279e-1;
- Float_t c1=6.307392e-2;
- Float_t c2=-8.011441e-3;
- Float_t c3=3.392126e-4;
- sm=(c0+c1*x+c2*x*x+c3*x*x*x)*1.e-18;
- }
-
- if (x> 8.1)
- {
- Int_t j=0;
- while (x<=em[j] && x>=em[j+1])
- {
- j++;
- Float_t a=(sch4[j+1]-sch4[j])/(em[j+1]-em[j]);
- sm=(sch4[j]+a*(x-em[j]))*1e-22;
- }
- }
-
- Float_t dm=(igas1/100.)*(1.-((oxy+wat)/1.e6))*losch*pn/tn;
- Float_t abslm=1./sm/dm;
-
-// ------- ISOBUTHANE CROSS SECTION --------------
-// i-C4H10 (ai) abs. length from curves in
-// Lu-McDonald paper for BARI RICH workshop .
-// -----------------------------------------------------------
-
- Float_t ai;
- Float_t absli;
- if (igas2 != 0)
- {
- if (x<7.25)
- ai=100000000.;
-
- if(x>=7.25 && x<7.375)
- ai=24.3;
-
- if(x>=7.375)
- ai=.0000000001;
-
- Float_t si = 1./(ai*losch*273.16/293.); // ISOB. CRO.SEC.IN CM2
- Float_t di=(igas2/100.)*(1.-((oxy+wat)/1.e6))*losch*pn/tn;
- absli =1./si/di;
- }
- else
- absli=1.e18;
-// ---------------------------------------------------------
//
-// transmission of O2
+// Version 0
+// Default Segmentation, no hits
+ AliRICHSegmentationV0* segmentation = new AliRICHSegmentationV0;
//
-// y= path in cm, x=energy in eV
-// so= cross section for UV absorption in cm2
-// do= O2 molecular density in cm-3
-// ---------------------------------------------------------
-
- Float_t abslo;
- Float_t so=0;
- if(x>=6.0)
- {
- if(x>=6.0 && x<6.5)
- {
- so=3.392709e-13 * TMath::Exp(2.864104 *x);
- so=so*1e-18;
- }
-
- if(x>=6.5 && x<7.0)
- {
- so=2.910039e-34 * TMath::Exp(10.3337*x);
- so=so*1e-18;
- }
-
-
- if (x>=7.0)
- {
- Float_t a0=-73770.76;
- Float_t a1=46190.69;
- Float_t a2=-11475.44;
- Float_t a3=1412.611;
- Float_t a4=-86.07027;
- Float_t a5=2.074234;
- so= a0+(a1*x)+(a2*x*x)+(a3*x*x*x)+(a4*x*x*x*x)+(a5*x*x*x*x*x);
- so=so*1e-18;
- }
-
- Float_t dox=(oxy/1e6)*losch*pn/tn;
- abslo=1./so/dox;
- }
- else
- abslo=1.e18;
-// ---------------------------------------------------------
+// Segmentation parameters
+ segmentation->SetPadSize(0.84,0.80);
+ segmentation->SetDAnod(0.84/2);
//
-// transmission of H2O
+// Geometry parameters
+ AliRICHGeometry* geometry = new AliRICHGeometry;
+ geometry->SetGapThickness(8);
+ geometry->SetProximityGapThickness(.4);
+ geometry->SetQuartzLength(131);
+ geometry->SetQuartzWidth(126.2);
+ geometry->SetQuartzThickness(.5);
+ geometry->SetOuterFreonLength(131);
+ geometry->SetOuterFreonWidth(40.3);
+ geometry->SetInnerFreonLength(131);
+ geometry->SetInnerFreonWidth(40.3);
+ geometry->SetFreonThickness(1.5);
//
-// y= path in cm, x=energy in eV
-// sw= cross section for UV absorption in cm2
-// dw= H2O molecular density in cm-3
-// ---------------------------------------------------------
-
- Float_t abslw;
-
- Float_t b0=29231.65;
- Float_t b1=-15807.74;
- Float_t b2=3192.926;
- Float_t b3=-285.4809;
- Float_t b4=9.533944;
-
- if(x>6.75)
- {
- Float_t sw= b0+(b1*x)+(b2*x*x)+(b3*x*x*x)+(b4*x*x*x*x);
- sw=sw*1e-18;
- Float_t dw=(wat/1e6)*losch*pn/tn;
- abslw=1./sw/dw;
- }
- else
- abslw=1.e18;
-
-// ---------------------------------------------------------
-
- Float_t alength=1./(1./abslm+1./absli+1./abslo+1./abslw);
- return (alength);
-}
-
-
-
-
-//___________________________________________
-
-void AliRICHv0::Init()
-{
- printf("\n\n\n Start Init for version 0 - CPC chamber type \n\n\n");
-
- //
- // Initialize Tracking Chambers
- //
- for (Int_t i=1; i<7; i++) {
- //printf ("i:%d",i);
- ( (AliRICHChamber*) (*fChambers)[i])->Init();
- }
-
- //
- // Set the chamber (sensitive region) GEANT identifier
-
- ((AliRICHChamber*)(*fChambers)[0])->SetGid(1);
- ((AliRICHChamber*)(*fChambers)[1])->SetGid(2);
- ((AliRICHChamber*)(*fChambers)[2])->SetGid(3);
- ((AliRICHChamber*)(*fChambers)[3])->SetGid(4);
- ((AliRICHChamber*)(*fChambers)[4])->SetGid(5);
- ((AliRICHChamber*)(*fChambers)[5])->SetGid(6);
- ((AliRICHChamber*)(*fChambers)[6])->SetGid(7);
-
- Float_t pos1[3]={0,471.8999,165.2599};
- Chamber(0).SetChamberTransform(pos1[0],pos1[1],pos1[2],new TRotMatrix("rot993","rot993",90,0,70.69,90,19.30999,-90));
-
- Float_t pos2[3]={171,470,0};
- Chamber(1).SetChamberTransform(pos2[0],pos2[1],pos2[2],new TRotMatrix("rot994","rot994",90,-20,90,70,0,0));
-
- Float_t pos3[3]={0,500,0};
- Chamber(2).SetChamberTransform(pos3[0],pos3[1],pos3[2],new TRotMatrix("rot995","rot995",90,0,90,90,0,0));
-
- Float_t pos4[3]={-171,470,0};
- Chamber(3).SetChamberTransform(pos4[0],pos4[1],pos4[2], new TRotMatrix("rot996","rot996",90,20,90,110,0,0));
-
- Float_t pos5[3]={161.3999,443.3999,-165.3};
- Chamber(4).SetChamberTransform(pos5[0],pos5[1],pos5[2],new TRotMatrix("rot997","rot997",90,340,108.1999,70,18.2,70));
-
- Float_t pos6[3]={0., 471.9, -165.3,};
- Chamber(5).SetChamberTransform(pos6[0],pos6[1],pos6[2],new TRotMatrix("rot998","rot998",90,0,109.3099,90,19.30999,90));
-
- Float_t pos7[3]={-161.399,443.3999,-165.3};
- Chamber(6).SetChamberTransform(pos7[0],pos7[1],pos7[2],new TRotMatrix("rot999","rot999",90,20,108.1999,110,18.2,110));
-
- printf("\n\n\n Finished Init for version 0 - CPC chamber type\n\n\n");
-}
-
-//___________________________________________
-void AliRICHv0::StepManager()
-{
- Int_t copy, id;
- static Int_t idvol;
- static Int_t vol[2];
- Int_t ipart;
- static Float_t hits[17];
- static Float_t Ckov_data[17];
- TLorentzVector Position;
- TLorentzVector Momentum;
- Float_t pos[3];
- Float_t mom[4];
- Float_t Localpos[3];
- Float_t Localmom[4];
- Float_t Localtheta,Localphi;
- Float_t theta,phi;
- Float_t destep, step;
- Float_t ranf[2];
- static Float_t eloss, xhit, yhit, tlength;
- const Float_t big=1.e10;
-
- TClonesArray &lhits = *fHits;
- TGeant3 *geant3 = (TGeant3*) gMC;
- TParticle *current = (TParticle*)(*gAlice->Particles())[gAlice->CurrentTrack()];
-
- //if (current->Energy()>1)
- //{
-
- // Only gas gap inside chamber
- // Tag chambers and record hits when track enters
-
- idvol=-1;
- id=gMC->CurrentVolID(copy);
- Float_t cherenkov_loss=0;
- //gAlice->KeepTrack(gAlice->CurrentTrack());
-
- gMC->TrackPosition(Position);
- pos[0]=Position(0);
- pos[1]=Position(1);
- pos[2]=Position(2);
- Ckov_data[1] = pos[0]; // X-position for hit
- Ckov_data[2] = pos[1]; // Y-position for hit
- Ckov_data[3] = pos[2]; // Z-position for hit
- //Ckov_data[11] = gAlice->CurrentTrack();
-
-
- /********************Store production parameters for Cerenkov photons************************/
-//is it a Cerenkov photon?
- if (gMC->TrackPid() == 50000050) {
-
- //if (gMC->VolId("GAP ")==gMC->CurrentVolID(copy))
-
-
- Float_t Ckov_energy = current->Energy();
- //energy interval for tracking
- if (Ckov_energy > 5.6e-09 && Ckov_energy < 7.8e-09 )
- //if (Ckov_energy > 0)
- {
- if (gMC->IsTrackEntering()){ //is track entering?
- if (gMC->VolId("FRE1")==gMC->CurrentVolID(copy) || gMC->VolId("FRE2")==gMC->CurrentVolID(copy))
- { //is it in freo?
- if (geant3->Gctrak()->nstep<1){ //is it the first step?
- Int_t mother = current->GetFirstMother();
-
- //printf("Second Mother:%d\n",current->GetSecondMother());
-
- Ckov_data[10] = mother;
- Ckov_data[11] = gAlice->CurrentTrack();
- Ckov_data[12] = 1; //Media where photon was produced 1->Freon, 2->Quarz
- fCkov_number++;
- fFreon_prod=1;
- //printf("Index: %d\n",fCkov_number);
- } //first step question
- } //freo question
-
- if (geant3->Gctrak()->nstep<1){ //is it first step?
- if (gMC->VolId("QUAR")==gMC->CurrentVolID(copy)) //is it in quarz?
- {
- Ckov_data[12] = 2;
- } //quarz question
- } //first step question
-
- //printf("Before %d\n",fFreon_prod);
- } //track entering question
-
- if (Ckov_data[12] == 1) //was it produced in Freon?
- //if (fFreon_prod == 1)
- {
- if (gMC->IsTrackEntering()){ //is track entering?
- //printf("Got in");
- if (gMC->VolId("META")==gMC->CurrentVolID(copy)) //is it in gap?
- {
- //printf("Got in\n");
- gMC->TrackMomentum(Momentum);
- mom[0]=Momentum(0);
- mom[1]=Momentum(1);
- mom[2]=Momentum(2);
- mom[3]=Momentum(3);
- // Z-position for hit
-
-
- /**************** Photons lost in second grid have to be calculated by hand************/
-
- Float_t cophi = TMath::Cos(TMath::ATan2(mom[0], mom[1]));
- Float_t t = (1. - .025 / cophi) * (1. - .05 / cophi);
- gMC->Rndm(ranf, 1);
- //printf("grid calculation:%f\n",t);
- if (ranf[0] > t) {
- geant3->StopTrack();
- Ckov_data[13] = 5;
- AddCerenkov(gAlice->CurrentTrack(),vol,Ckov_data);
- //printf("Lost one in grid\n");
- }
- /**********************************************************************************/
- } //gap
-
- if (gMC->VolId("CSI ")==gMC->CurrentVolID(copy)) //is it in csi?
- {
- gMC->TrackMomentum(Momentum);
- mom[0]=Momentum(0);
- mom[1]=Momentum(1);
- mom[2]=Momentum(2);
- mom[3]=Momentum(3);
-
- /********* Photons lost by Fresnel reflection have to be calculated by hand********/
- /***********************Cerenkov phtons (always polarised)*************************/
-
- Float_t cophi = TMath::Cos(TMath::ATan2(mom[0], mom[1]));
- Float_t t = Fresnel(Ckov_energy*1e9,cophi,1);
- gMC->Rndm(ranf, 1);
- if (ranf[0] < t) {
- geant3->StopTrack();
- Ckov_data[13] = 6;
- AddCerenkov(gAlice->CurrentTrack(),vol,Ckov_data);
- //printf("Lost by Fresnel\n");
- }
- /**********************************************************************************/
- }
- } //track entering?
-
-
- /********************Evaluation of losses************************/
- /******************still in the old fashion**********************/
-
- Int_t i1 = geant3->Gctrak()->nmec; //number of physics mechanisms acting on the particle
- for (Int_t i = 0; i < i1; ++i) {
- // Reflection loss
- if (geant3->Gctrak()->lmec[i] == 106) { //was it reflected
- Ckov_data[13]=10;
- if (gMC->VolId("FRE1")==gMC->CurrentVolID(copy) || gMC->VolId("FRE2")==gMC->CurrentVolID(copy))
- Ckov_data[13]=1;
- if (gMC->CurrentVolID(copy) == gMC->VolId("QUAR"))
- Ckov_data[13]=2;
- geant3->StopTrack();
- AddCerenkov(gAlice->CurrentTrack(),vol,Ckov_data);
- } //reflection question
-
-
- // Absorption loss
- else if (geant3->Gctrak()->lmec[i] == 101) { //was it absorbed?
- Ckov_data[13]=20;
- if (gMC->VolId("FRE1")==gMC->CurrentVolID(copy) || gMC->VolId("FRE2")==gMC->CurrentVolID(copy))
- Ckov_data[13]=11;
- if (gMC->CurrentVolID(copy) == gMC->VolId("QUAR"))
- Ckov_data[13]=12;
- if (gMC->CurrentVolID(copy) == gMC->VolId("META"))
- Ckov_data[13]=13;
- if (gMC->CurrentVolID(copy) == gMC->VolId("GAP "))
- Ckov_data[13]=13;
-
- if (gMC->CurrentVolID(copy) == gMC->VolId("SRIC"))
- Ckov_data[13]=15;
-
- // CsI inefficiency
- if (gMC->CurrentVolID(copy) == gMC->VolId("CSI ")) {
- Ckov_data[13]=16;
- }
- geant3->StopTrack();
- AddCerenkov(gAlice->CurrentTrack(),vol,Ckov_data);
- //printf("Added cerenkov %d\n",fCkov_number);
- } //absorption question
-
-
- // Photon goes out of tracking scope
- else if (geant3->Gctrak()->lmec[i] == 30) { //is it below energy treshold?
- Ckov_data[13]=21;
- geant3->StopTrack();
- AddCerenkov(gAlice->CurrentTrack(),vol,Ckov_data);
- } // energy treshold question
- } //number of mechanisms cycle
- /**********************End of evaluation************************/
- } //freon production question
- } //energy interval question
- } //cerenkov photon question
-
- /**************************************End of Production Parameters Storing*********************/
-
+// Response parameters
+ AliRICHResponseV0* response = new AliRICHResponseV0;
+ response->SetSigmaIntegration(5.);
+ response->SetChargeSlope(27.);
+ response->SetChargeSpread(0.18, 0.18);
+ response->SetMaxAdc(4096);
+ response->SetAlphaFeedback(0.036);
+ response->SetEIonisation(26.e-9);
+ response->SetSqrtKx3(0.77459667);
+ response->SetKx2(0.962);
+ response->SetKx4(0.379);
+ response->SetSqrtKy3(0.77459667);
+ response->SetKy2(0.962);
+ response->SetKy4(0.379);
+ response->SetPitch(0.25);
+ response->SetWireSag(0); // 1->On, 0->Off
+ response->SetVoltage(2150); // Should only be 2000, 2050, 2100 or 2150
+//
+// AliRICH *RICH = (AliRICH *) gAlice->GetDetector("RICH");
- /*******************************Treat photons that hit the CsI (Ckovs and Feedbacks)************/
+ fCkovNumber=0;
+ fFreonProd=0;
+ Int_t i=0;
- if (gMC->TrackPid() == 50000050 || gMC->TrackPid() == 50000051) {
- if (gMC->VolId("CSI ")==gMC->CurrentVolID(copy))
- {
-
- if (gMC->Edep() > 0.){
- gMC->TrackPosition(Position);
- gMC->TrackMomentum(Momentum);
- pos[0]=Position(0);
- pos[1]=Position(1);
- pos[2]=Position(2);
- mom[0]=Momentum(0);
- mom[1]=Momentum(1);
- mom[2]=Momentum(2);
- mom[3]=Momentum(3);
- Double_t tc = mom[0]*mom[0]+mom[1]*mom[1];
- Double_t rt = TMath::Sqrt(tc);
- theta = Float_t(TMath::ATan2(rt,Double_t(mom[2])))*kRaddeg;
- phi = Float_t(TMath::ATan2(Double_t(mom[1]),Double_t(mom[0])))*kRaddeg;
- gMC->Gmtod(pos,Localpos,1);
- gMC->Gmtod(mom,Localmom,2);
-
- gMC->CurrentVolOffID(2,copy);
- vol[0]=copy;
- idvol=vol[0]-1;
-
- //Int_t sector=((AliRICHChamber*) (*fChambers)[idvol])
- //->Sector(Localpos[0], Localpos[2]);
- //printf("Sector:%d\n",sector);
-
- /*if (gMC->TrackPid() == 50000051){
- fFeedbacks++;
- printf("Feedbacks:%d\n",fFeedbacks);
- }*/
-
- ((AliRICHChamber*) (*fChambers)[idvol])
- ->SigGenInit(Localpos[0], Localpos[2], Localpos[1]);
- if(idvol<7) {
- Ckov_data[0] = gMC->TrackPid(); // particle type
- Ckov_data[1] = pos[0]; // X-position for hit
- Ckov_data[2] = pos[1]; // Y-position for hit
- Ckov_data[3] = pos[2]; // Z-position for hit
- Ckov_data[4] = theta; // theta angle of incidence
- Ckov_data[5] = phi; // phi angle of incidence
- Ckov_data[8] = (Float_t) fNPadHits; // first padhit
- Ckov_data[9] = -1; // last pad hit
- Ckov_data[13] = 4; // photon was detected
- Ckov_data[14] = mom[0];
- Ckov_data[15] = mom[1];
- Ckov_data[16] = mom[2];
-
- destep = gMC->Edep();
- gMC->SetMaxStep(big);
- cherenkov_loss += destep;
- Ckov_data[7]=cherenkov_loss;
-
- MakePadHits(Localpos[0],Localpos[2],cherenkov_loss,idvol,cerenkov);
- if (fNPadHits > (Int_t)Ckov_data[8]) {
- Ckov_data[8]= Ckov_data[8]+1;
- Ckov_data[9]= (Float_t) fNPadHits;
- }
- //if (sector != -1)
- //{
- AddHit(gAlice->CurrentTrack(),vol,Ckov_data);
- AddCerenkov(gAlice->CurrentTrack(),vol,Ckov_data);
- //}
- }
- }
- }
+ fChambers = new TObjArray(kNCH);
+ for (i=0; i<kNCH; i++) {
+
+ //PH (*fChambers)[i] = new AliRICHChamber();
+ fChambers->AddAt(new AliRICHChamber(), i);
+
}
-
- /***********************************************End of photon hits*********************************************/
-
-
- /**********************************************Charged particles treatment*************************************/
-
- //else if (gMC->TrackCharge())
- else if (1 == 1)
- {
-//If MIP
- /*if (gMC->IsTrackEntering())
- {
- hits[13]=20;//is track entering?
- }*/
- if (gMC->VolId("FRE1")==gMC->CurrentVolID(copy) || gMC->VolId("FRE2")==gMC->CurrentVolID(copy))
- {
- fFreon_prod=1;
- }
-
- if (gMC->VolId("GAP ")== gMC->CurrentVolID(copy)) {
-// Get current particle id (ipart), track position (pos) and momentum (mom)
-
- gMC->CurrentVolOffID(3,copy);
- vol[0]=copy;
- idvol=vol[0]-1;
-
- //Int_t sector=((AliRICHChamber*) (*fChambers)[idvol])
- //->Sector(Localpos[0], Localpos[2]);
- //printf("Sector:%d\n",sector);
-
- gMC->TrackPosition(Position);
- gMC->TrackMomentum(Momentum);
- pos[0]=Position(0);
- pos[1]=Position(1);
- pos[2]=Position(2);
- mom[0]=Momentum(0);
- mom[1]=Momentum(1);
- mom[2]=Momentum(2);
- mom[3]=Momentum(3);
- gMC->Gmtod(pos,Localpos,1);
- gMC->Gmtod(mom,Localmom,2);
-
- ipart = gMC->TrackPid();
- //
- // momentum loss and steplength in last step
- destep = gMC->Edep();
- step = gMC->TrackStep();
- //
- // record hits when track enters ...
- if( gMC->IsTrackEntering()) {
-// gMC->SetMaxStep(fMaxStepGas);
- Double_t tc = mom[0]*mom[0]+mom[1]*mom[1];
- Double_t rt = TMath::Sqrt(tc);
- theta = Float_t(TMath::ATan2(rt,Double_t(mom[2])))*kRaddeg;
- phi = Float_t(TMath::ATan2(Double_t(mom[1]),Double_t(mom[0])))*kRaddeg;
-
-
- Double_t Localtc = Localmom[0]*Localmom[0]+Localmom[2]*Localmom[2];
- Double_t Localrt = TMath::Sqrt(Localtc);
- Localtheta = Float_t(TMath::ATan2(Localrt,Double_t(Localmom[1])))*kRaddeg;
- Localphi = Float_t(TMath::ATan2(Double_t(Localmom[2]),Double_t(Localmom[0])))*kRaddeg;
-
- hits[0] = Float_t(ipart); // particle type
- hits[1] = Localpos[0]; // X-position for hit
- hits[2] = Localpos[1]; // Y-position for hit
- hits[3] = Localpos[2]; // Z-position for hit
- hits[4] = Localtheta; // theta angle of incidence
- hits[5] = Localphi; // phi angle of incidence
- hits[8] = (Float_t) fNPadHits; // first padhit
- hits[9] = -1; // last pad hit
- hits[13] = fFreon_prod; // did id hit the freon?
- hits[14] = mom[0];
- hits[15] = mom[1];
- hits[16] = mom[2];
-
- tlength = 0;
- eloss = 0;
- fFreon_prod = 0;
-
- Chamber(idvol).LocaltoGlobal(Localpos,hits+1);
-
-
- //To make chamber coordinates x-y had to pass LocalPos[0], LocalPos[2]
- xhit = Localpos[0];
- yhit = Localpos[2];
- // Only if not trigger chamber
- if(idvol<7) {
- //
- // Initialize hit position (cursor) in the segmentation model
- ((AliRICHChamber*) (*fChambers)[idvol])
- ->SigGenInit(Localpos[0], Localpos[2], Localpos[1]);
- }
- }
-
- //
- // Calculate the charge induced on a pad (disintegration) in case
- //
- // Mip left chamber ...
- if( gMC->IsTrackExiting() || gMC->IsTrackStop() || gMC->IsTrackDisappeared()){
- gMC->SetMaxStep(big);
- eloss += destep;
- tlength += step;
-
-
- // Only if not trigger chamber
- if(idvol<7) {
- if (eloss > 0) MakePadHits(xhit,yhit,eloss,idvol,mip);
- }
-
- hits[6]=tlength;
- hits[7]=eloss;
- if (fNPadHits > (Int_t)hits[8]) {
- hits[8]= hits[8]+1;
- hits[9]= (Float_t) fNPadHits;
- }
-
- //if(sector !=-1)
- new(lhits[fNhits++]) AliRICHHit(fIshunt,gAlice->CurrentTrack(),vol,hits);
- eloss = 0;
- //
- // Check additional signal generation conditions
- // defined by the segmentation
- // model (boundary crossing conditions)
- } else if
- (((AliRICHChamber*) (*fChambers)[idvol])
- ->SigGenCond(Localpos[0], Localpos[2], Localpos[1]))
- {
- ((AliRICHChamber*) (*fChambers)[idvol])
- ->SigGenInit(Localpos[0], Localpos[2], Localpos[1]);
- if (eloss > 0) MakePadHits(xhit,yhit,eloss,idvol,mip);
- xhit = Localpos[0];
- yhit = Localpos[2];
- eloss = destep;
- tlength += step ;
- //
- // nothing special happened, add up energy loss
- } else {
- eloss += destep;
- tlength += step ;
- }
- }
- }
- /*************************************************End of MIP treatment**************************************/
- //}
-}
-
-
-//___________________________________________
-void AliRICH::MakePadHits(Float_t xhit,Float_t yhit,Float_t eloss, Int_t idvol, Response_t res)
-{
-//
-// Calls the charge disintegration method of the current chamber and adds
-// the simulated cluster to the root treee
-//
- Int_t clhits[7];
- Float_t newclust[6][500];
- Int_t nnew;
-
-//
-// Integrated pulse height on chamber
-
- clhits[0]=fNhits+1;
-
- ((AliRICHChamber*) (*fChambers)[idvol])->DisIntegration(eloss, xhit, yhit, nnew, newclust, res);
- Int_t ic=0;
-
-//
-// Add new clusters
- for (Int_t i=0; i<nnew; i++) {
- if (Int_t(newclust[3][i]) > 0) {
- ic++;
-// Cathode plane
- clhits[1] = Int_t(newclust[5][i]);
-// Cluster Charge
- clhits[2] = Int_t(newclust[0][i]);
-// Pad: ix
- clhits[3] = Int_t(newclust[1][i]);
-// Pad: iy
- clhits[4] = Int_t(newclust[2][i]);
-// Pad: charge
- clhits[5] = Int_t(newclust[3][i]);
-// Pad: chamber sector
- clhits[6] = Int_t(newclust[4][i]);
-
- AddPadHit(clhits);
- }
+ for (i=0; i<kNCH; i++) {
+ SetGeometryModel(i,geometry);
+ SetSegmentationModel(i, segmentation);
+ SetResponseModel(i, response);
}
-}
+}//name ctor
+//______________________________________________________________________________
+void AliRICHv0::StepManager()
+{//
+}//AliRICHv0::StepManager()
+//______________________________________________________________________________
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff