+/**************************************************************************
+ * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * *
+ * Author: The ALICE Off-line Project. *
+ * Contributors are mentioned in the code where appropriate. *
+ * *
+ * Permission to use, copy, modify and distribute this software and its *
+ * documentation strictly for non-commercial purposes is hereby granted *
+ * without fee, provided that the above copyright notice appears in all *
+ * copies and that both the copyright notice and this permission notice *
+ * appear in the supporting documentation. The authors make no claims *
+ * about the suitability of this software for any purpose. It is *
+ * provided "as is" without express or implied warranty. *
+ **************************************************************************/
+
+/*
+$Log$
+Revision 1.10 1999/09/29 09:24:35 fca
+Introduction of the Copyright and cvs Log
+
+*/
+
///////////////////////////////////////////////////////////////////////////////
// //
// Transition Radiation Detector version 0 -- coarse simulation //
// //
///////////////////////////////////////////////////////////////////////////////
+#include <stdlib.h>
+
#include <TMath.h>
#include <TRandom.h>
#include <TVector.h>
//
// Standard constructor for Transition Radiation Detector version 0
//
- fIdSens1 = fIdSens2 = fIdSens3 = 0;
+
+ fIdSens = 0;
+ fHitsOn = 0;
+
+ fIdSpace1 = 0;
+ fIdSpace2 = 0;
+ fIdSpace3 = 0;
+
+ fIdChamber1 = 0;
+ fIdChamber2 = 0;
+ fIdChamber3 = 0;
+
}
//_____________________________________________________________________________
void AliTRDv0::CreateGeometry()
{
//
- // Create the GEANT geometry for the Transition Radiation Detector
- // --- The coarse geometry of the TRD, that can be used for background
- // studies. This version covers the full azimuth.
- // --- Author : Christoph Blume (GSI) 17/5/99
+ // Create the GEANT geometry for the Transition Radiation Detector - Version 0
+ // This version covers the full azimuth.
//
- // --- Volume names :
- // TRD --> Mother TRD volume (Al)
- // UTRS --> Sectors of the sub-detector (Al)
- // UTRI --> Inner part of the detector frame (Air)
- // UTCI(N,O) --> Frames of the inner, neighbouring and outer chambers (C)
- // UTII(N,O) --> Inner part of the chambers (Air)
- // UTMI(N,O) --> Modules in the chambers (Air)
- // UT0I(N,O) --> Radiator seal (G10)
- // UT1I(N,O) --> Radiator (CO2)
- // UT2I(N,O) --> Polyethylene of radiator (PE)
- // UT3I(N,O) --> Entrance window (Mylar)
- // UT4I(N,O) --> Gas volume (sensitive) (Xe/Isobutane)
- // UT5I(N,O) --> Pad plane (Cu)
- // UT6I(N,O) --> Support structure (G10)
- // UT7I(N,O) --> FEE + signal lines (Cu)
- // UT8I(N,O) --> Polyethylene of cooling device (PE)
- // UT9I(N,O) --> Cooling water (Water)
+ // Author: Christoph Blume (C.Blume@gsi.de) 20/07/99
//
- //Begin_Html
- /*
- <img src="picts/AliTRDv0.gif">
- */
- //End_Html
- //Begin_Html
- /*
- <img src="picts/AliTRDv0Tree.gif">
- */
- //End_Html
-
- Float_t xpos, ypos, zpos, f;
- Int_t idmat[2];
-
- const Int_t nparmo = 10;
- const Int_t nparfr = 4;
- const Int_t nparic = 4;
- const Int_t nparnc = 4;
- const Int_t nparoc = 11;
-
- Float_t par_mo[nparmo];
- Float_t par_fr[nparfr];
- Float_t par_ic[nparic];
- Float_t par_nc[nparnc];
- Float_t par_oc[nparoc];
-
- Int_t *idtmed =fIdtmed->GetArray()-1299;
-
- AliMC* pMC = AliMC::GetMC();
-
- //////////////////////////////////////////////////////////////////////////
- // Definition of Volumes
- //////////////////////////////////////////////////////////////////////////
-
- // Definition of the mother volume for the TRD (Al)
- par_mo[0] = 0.;
- par_mo[1] = 360.;
- par_mo[2] = nsect;
- par_mo[3] = 2.;
- par_mo[4] = -zmax1;
- par_mo[5] = rmin;
- par_mo[6] = rmax;
- par_mo[7] = zmax1;
- par_mo[8] = rmin;
- par_mo[9] = rmax;
- pMC->Gsvolu("TRD ", "PGON", idtmed[1301-1], par_mo, nparmo);
- pMC->Gsdvn("UTRS", "TRD ", nsect, 2);
-
- // The minimal width of a sector in rphi-direction
- Float_t widmi = rmin * TMath::Tan(kPI/nsect);
- // The maximal width of a sector in rphi-direction
- Float_t widma = rmax * TMath::Tan(kPI/nsect);
- // The total thickness of the spaceframe (Al + Air)
- Float_t frame = widmi - (widpl1 / 2);
-
- // Definition of the inner part of the detector frame (Air)
- par_fr[0] = widmi - alframe / 2.;
- par_fr[1] = widma - alframe / 2.;
- par_fr[2] = zmax1;
- par_fr[3] = (rmax - rmin) / 2;
- pMC->Gsvolu("UTRI", "TRD1", idtmed[1302-1], par_fr, nparfr);
-
- //
- // The outer chambers
- //
-
- // Calculate some shape-parameter
- Float_t tanzr = (zmax1 - zmax2) / (rmax - rmin);
- Float_t theoc = -kRaddeg * TMath::ATan(tanzr / 2);
-
- // The carbon frame (C)
- par_oc[0] = (rmax - rmin) / 2;
- par_oc[1] = theoc;
- par_oc[2] = 90.;
- par_oc[3] = (zmax2 - zlenn - zleni/2) / 2;
- par_oc[4] = widmi - frame;
- par_oc[5] = widmi - frame;
- par_oc[6] = 0.;
- par_oc[7] = (zmax1 - zlenn - zleni/2) / 2;
- par_oc[8] = widma - frame;
- par_oc[9] = widma - frame;
- par_oc[10] = 0.;
- pMC->Gsvolu("UTCO", "TRAP", idtmed[1307-1], par_oc, nparoc);
-
- // The inner part (Air)
- par_oc[3] -= ccframe;
- par_oc[4] -= ccframe;
- par_oc[5] -= ccframe;
- par_oc[7] -= ccframe;
- par_oc[8] -= ccframe;
- par_oc[9] -= ccframe;
- pMC->Gsvolu("UTIO", "TRAP", idtmed[1302-1], par_oc, nparoc);
-
- // Definition of the six modules within each chamber
- pMC->Gsdvn("UTMO", "UTIO", nmodul, 3);
-
- // Definition of the layers of each chamber
- par_oc[1] = theoc;
- par_oc[2] = 90.;
- par_oc[3] = -1.;
- par_oc[4] = -1.;
- par_oc[5] = -1.;
- par_oc[6] = 0.;
- par_oc[7] = -1.;
- par_oc[8] = -1.;
- par_oc[9] = -1.;
- par_oc[10] = 0.;
- // G10 layer (radiator layer)
- par_oc[0] = sethick / 2;
- pMC->Gsvolu("UT0O", "TRAP", idtmed[1313-1], par_oc, nparoc);
- // CO2 layer (radiator)
- par_oc[0] = rathick / 2;
- pMC->Gsvolu("UT1O", "TRAP", idtmed[1312-1], par_oc, nparoc);
- // PE layer (radiator)
- par_oc[0] = pethick / 2;
- pMC->Gsvolu("UT2O", "TRAP", idtmed[1303-1], par_oc, nparoc);
- // Mylar layer (entrance window + HV cathode)
- par_oc[0] = mythick / 2;
- pMC->Gsvolu("UT3O", "TRAP", idtmed[1308-1], par_oc, nparoc);
- // Xe/Isobutane layer (gasvolume)
- par_oc[0] = xethick / 2;
- pMC->Gsvolu("UT4O", "TRAP", idtmed[1309-1], par_oc, nparoc);
- // Cu layer (pad plane)
- par_oc[0] = cuthick / 2;
- pMC->Gsvolu("UT5O", "TRAP", idtmed[1305-1], par_oc, nparoc);
- // G10 layer (support structure)
- par_oc[0] = suthick / 2;
- pMC->Gsvolu("UT6O", "TRAP", idtmed[1313-1], par_oc, nparoc);
- // Cu layer (FEE + signal lines)
- par_oc[0] = fethick / 2;
- pMC->Gsvolu("UT7O", "TRAP", idtmed[1305-1], par_oc, nparoc);
- // PE layer (cooling devices)
- par_oc[0] = cothick / 2;
- pMC->Gsvolu("UT8O", "TRAP", idtmed[1303-1], par_oc, nparoc);
- // Water layer (cooling)
- par_oc[0] = wathick / 2;
- pMC->Gsvolu("UT9O", "TRAP", idtmed[1314-1], par_oc, nparoc);
-
- //
- // The neighbouring chambers
- //
-
- // The carbon frame (C)
- par_nc[0] = widmi - frame;
- par_nc[1] = widma - frame;
- par_nc[2] = zlenn / 2;
- par_nc[3] = (rmax - rmin) / 2;
- pMC->Gsvolu("UTCN", "TRD1", idtmed[1307-1], par_nc, nparnc);
-
- // The inner part (Air)
- par_nc[0] -= ccframe;
- par_nc[1] -= ccframe;
- par_nc[2] -= ccframe;
- pMC->Gsvolu("UTIN", "TRD1", idtmed[1302-1], par_nc, nparnc);
-
- // Definition of the six modules within each outer chamber
- pMC->Gsdvn("UTMN", "UTIN", nmodul, 3);
-
- // Definition of the layers of each chamber
- par_nc[0] = -1.;
- par_nc[1] = -1.;
- par_nc[2] = -1.;
- // G10 layer (radiator layer)
- par_nc[3] = sethick / 2;
- pMC->Gsvolu("UT0N", "TRD1", idtmed[1313-1], par_nc, nparnc);
- // CO2 layer (radiator)
- par_nc[3] = rathick / 2;
- pMC->Gsvolu("UT1N", "TRD1", idtmed[1312-1], par_nc, nparnc);
- // PE layer (radiator)
- par_nc[3] = pethick / 2;
- pMC->Gsvolu("UT2N", "TRD1", idtmed[1303-1], par_nc, nparnc);
- // Mylar layer (entrance window + HV cathode)
- par_nc[3] = mythick / 2;
- pMC->Gsvolu("UT3N", "TRD1", idtmed[1308-1], par_nc, nparnc);
- // Xe/Isobutane layer (gasvolume)
- par_nc[3] = xethick / 2;
- pMC->Gsvolu("UT4N", "TRD1", idtmed[1309-1], par_nc, nparnc);
- // Cu layer (pad plane)
- par_nc[3] = cuthick / 2;
- pMC->Gsvolu("UT5N", "TRD1", idtmed[1305-1], par_nc, nparnc);
- // G10 layer (support structure)
- par_nc[3] = suthick / 2;
- pMC->Gsvolu("UT6N", "TRD1", idtmed[1313-1], par_nc, nparnc);
- // Cu layer (FEE + signal lines)
- par_nc[3] = fethick / 2;
- pMC->Gsvolu("UT7N", "TRD1", idtmed[1305-1], par_nc, nparnc);
- // PE layer (cooling devices)
- par_nc[3] = cothick / 2;
- pMC->Gsvolu("UT8N", "TRD1", idtmed[1303-1], par_nc, nparnc);
- // Water layer (cooling)
- par_nc[3] = wathick / 2;
- pMC->Gsvolu("UT9N", "TRD1", idtmed[1314-1], par_nc, nparnc);
-
- //
- // The inner chamber
- //
-
- // The carbon frame (C)
- par_ic[0] = widmi - frame;
- par_ic[1] = widma - frame;
- par_ic[2] = zleni / 2;
- par_ic[3] = (rmax - rmin) / 2;
- pMC->Gsvolu("UTCI", "TRD1", idtmed[1307-1], par_ic, nparic);
-
- // The inner part (Air)
- par_ic[0] -= ccframe;
- par_ic[1] -= ccframe;
- par_ic[2] -= ccframe;
- pMC->Gsvolu("UTII", "TRD1", idtmed[1302-1], par_ic, nparic);
-
- // Definition of the six modules within each outer chamber
- pMC->Gsdvn("UTMI", "UTII", nmodul, 3);
-
- // Definition of the layers of each inner chamber
- par_ic[0] = -1.;
- par_ic[1] = -1.;
- par_ic[2] = -1.;
- // G10 layer (radiator layer)
- par_ic[3] = sethick / 2;
- pMC->Gsvolu("UT0I", "TRD1", idtmed[1313-1], par_ic, nparic);
- // CO2 layer (radiator)
- par_ic[3] = rathick / 2;
- pMC->Gsvolu("UT1I", "TRD1", idtmed[1312-1], par_ic, nparic);
- // PE layer (radiator)
- par_ic[3] = pethick / 2;
- pMC->Gsvolu("UT2I", "TRD1", idtmed[1303-1], par_ic, nparic);
- // Mylar layer (entrance window + HV cathode)
- par_ic[3] = mythick / 2;
- pMC->Gsvolu("UT3I", "TRD1", idtmed[1308-1], par_ic, nparic);
- // Xe/Isobutane layer (gasvolume)
- par_ic[3] = xethick / 2;
- pMC->Gsvolu("UT4I", "TRD1", idtmed[1309-1], par_ic, nparic);
- // Cu layer (pad plane)
- par_ic[3] = cuthick / 2;
- pMC->Gsvolu("UT5I", "TRD1", idtmed[1305-1], par_ic, nparic);
- // G10 layer (support structure)
- par_ic[3] = suthick / 2;
- pMC->Gsvolu("UT6I", "TRD1", idtmed[1313-1], par_ic, nparic);
- // Cu layer (FEE + signal lines)
- par_ic[3] = fethick / 2;
- pMC->Gsvolu("UT7I", "TRD1", idtmed[1305-1], par_ic, nparic);
- // PE layer (cooling devices)
- par_ic[3] = cothick / 2;
- pMC->Gsvolu("UT8I", "TRD1", idtmed[1303-1], par_ic, nparic);
- // Water layer (cooling)
- par_ic[3] = wathick / 2;
- pMC->Gsvolu("UT9I", "TRD1", idtmed[1314-1], par_ic, nparic);
-
- //////////////////////////////////////////////////////////////////////////
- // Positioning of Volumes
- //////////////////////////////////////////////////////////////////////////
-
- // The rotation matrices
- AliMatrix(idmat[0], 90., 90., 180., 0., 90., 0.);
- AliMatrix(idmat[1], 90., 180., 90., 270., 0., 0.);
-
- // Position of the layers in a TRD module
- f = TMath::Tan(theoc * kDegrad);
- pMC->Gspos("UT9O", 1, "UTMO", 0., f*wazpos, wazpos, 0, "ONLY");
- pMC->Gspos("UT8O", 1, "UTMO", 0., f*cozpos, cozpos, 0, "ONLY");
- pMC->Gspos("UT7O", 1, "UTMO", 0., f*fezpos, fezpos, 0, "ONLY");
- pMC->Gspos("UT6O", 1, "UTMO", 0., f*suzpos, suzpos, 0, "ONLY");
- pMC->Gspos("UT5O", 1, "UTMO", 0., f*cuzpos, cuzpos, 0, "ONLY");
- pMC->Gspos("UT4O", 1, "UTMO", 0., f*xezpos, xezpos, 0, "ONLY");
- pMC->Gspos("UT3O", 1, "UTMO", 0., f*myzpos, myzpos, 0, "ONLY");
- pMC->Gspos("UT1O", 1, "UTMO", 0., f*razpos, razpos, 0, "ONLY");
- pMC->Gspos("UT0O", 1, "UTMO", 0., f*sezpos, sezpos, 0, "ONLY");
- pMC->Gspos("UT2O", 1, "UT1O", 0., f*pezpos, pezpos, 0, "ONLY");
-
- pMC->Gspos("UT9N", 1, "UTMN", 0., 0., wazpos, 0, "ONLY");
- pMC->Gspos("UT8N", 1, "UTMN", 0., 0., cozpos, 0, "ONLY");
- pMC->Gspos("UT7N", 1, "UTMN", 0., 0., fezpos, 0, "ONLY");
- pMC->Gspos("UT6N", 1, "UTMN", 0., 0., suzpos, 0, "ONLY");
- pMC->Gspos("UT5N", 1, "UTMN", 0., 0., cuzpos, 0, "ONLY");
- pMC->Gspos("UT4N", 1, "UTMN", 0., 0., xezpos, 0, "ONLY");
- pMC->Gspos("UT3N", 1, "UTMN", 0., 0., myzpos, 0, "ONLY");
- pMC->Gspos("UT1N", 1, "UTMN", 0., 0., razpos, 0, "ONLY");
- pMC->Gspos("UT0N", 1, "UTMN", 0., 0., sezpos, 0, "ONLY");
- pMC->Gspos("UT2N", 1, "UT1N", 0., 0., pezpos, 0, "ONLY");
-
- pMC->Gspos("UT9I", 1, "UTMI", 0., 0., wazpos, 0, "ONLY");
- pMC->Gspos("UT8I", 1, "UTMI", 0., 0., cozpos, 0, "ONLY");
- pMC->Gspos("UT7I", 1, "UTMI", 0., 0., fezpos, 0, "ONLY");
- pMC->Gspos("UT6I", 1, "UTMI", 0., 0., suzpos, 0, "ONLY");
- pMC->Gspos("UT5I", 1, "UTMI", 0., 0., cuzpos, 0, "ONLY");
- pMC->Gspos("UT4I", 1, "UTMI", 0., 0., xezpos, 0, "ONLY");
- pMC->Gspos("UT3I", 1, "UTMI", 0., 0., myzpos, 0, "ONLY");
- pMC->Gspos("UT1I", 1, "UTMI", 0., 0., razpos, 0, "ONLY");
- pMC->Gspos("UT0I", 1, "UTMI", 0., 0., sezpos, 0, "ONLY");
- pMC->Gspos("UT2I", 1, "UT1I", 0., 0., pezpos, 0, "ONLY");
-
- // Position of the inner part of the chambers
- xpos = 0.;
- ypos = 0.;
- zpos = 0.;
- pMC->Gspos("UTII", 1, "UTCI", xpos, ypos, zpos, 0, "ONLY");
- pMC->Gspos("UTIN", 1, "UTCN", xpos, ypos, zpos, 0, "ONLY");
- pMC->Gspos("UTIO", 1, "UTCO", xpos, ypos, zpos, 0, "ONLY");
-
- // Position of the chambers in the support frame
- xpos = 0.;
- ypos = ((zmax1 + zmax2) / 2 + zlenn + zleni / 2) / 2;
- zpos = 0.;
- pMC->Gspos("UTCO", 1, "UTRI", xpos, ypos, zpos, idmat[1], "ONLY");
- pMC->Gspos("UTCO", 2, "UTRI", xpos,-ypos, zpos, 0 , "ONLY");
- xpos = 0.;
- ypos = (zlenn + zleni) / 2;
- zpos = 0.;
- pMC->Gspos("UTCN", 1, "UTRI", xpos, ypos, zpos, 0 , "ONLY");
- pMC->Gspos("UTCN", 2, "UTRI", xpos,-ypos, zpos, 0 , "ONLY");
- xpos = 0.;
- ypos = 0.;
- zpos = 0.;
- pMC->Gspos("UTCI", 1, "UTRI", xpos, ypos, zpos, 0 , "ONLY");
-
- // Position of the inner part of the detector frame
- xpos = (rmax + rmin) / 2;
- ypos = 0.;
- zpos = 0.;
- pMC->Gspos("UTRI", 1, "UTRS", xpos, ypos, zpos, idmat[0], "ONLY");
-
- // Position of the TRD mother volume in the ALICE experiment
- xpos = 0.;
- ypos = 0.;
- zpos = 0.;
- pMC->Gspos("TRD ", 1, "ALIC", xpos, ypos, zpos, 0, "ONLY");
-}
+ Float_t xpos, ypos, zpos;
-//_____________________________________________________________________________
-void AliTRDv0::DrawModule()
-{
+ // Check that FRAME is there otherwise we have no place where to put the TRD
+ AliModule* FRAME = gAlice->GetModule("FRAME");
+ if (!FRAME) return;
- //
- // Draw a shaded view of the Transition Radiation Detector version 0
- //
+ // Define the chambers
+ AliTRD::CreateGeometry();
- AliMC* pMC = AliMC::GetMC();
-
- // Set everything unseen
- pMC->Gsatt("*", "seen", -1);
- //
- // Set ALIC mother transparent
- pMC->Gsatt("ALIC","SEEN",0);
- //
- // Set the volumes visible
- pMC->Gsatt("TRD" ,"SEEN",0);
- pMC->Gsatt("UTRS","SEEN",0);
- pMC->Gsatt("UTRI","SEEN",0);
- pMC->Gsatt("UTCO","SEEN",0);
- pMC->Gsatt("UTIO","SEEN",0);
- pMC->Gsatt("UTMO","SEEN",0);
- pMC->Gsatt("UTCN","SEEN",0);
- pMC->Gsatt("UTIN","SEEN",0);
- pMC->Gsatt("UTMN","SEEN",0);
- pMC->Gsatt("UTCI","SEEN",0);
- pMC->Gsatt("UTII","SEEN",0);
- pMC->Gsatt("UTMI","SEEN",0);
- pMC->Gsatt("UT1O","SEEN",1);
- pMC->Gsatt("UT4O","SEEN",1);
- pMC->Gsatt("UT1N","SEEN",1);
- pMC->Gsatt("UT4N","SEEN",1);
- pMC->Gsatt("UT1I","SEEN",1);
- pMC->Gsatt("UT4I","SEEN",1);
- //
- pMC->Gdopt("hide", "on");
- pMC->Gdopt("shad", "on");
- pMC->Gsatt("*", "fill", 7);
- pMC->SetClipBox(".");
- pMC->SetClipBox("*", 0, 2000, -2000, 2000, -2000, 2000);
- pMC->DefaultRange();
- pMC->Gdraw("alic", 40, 30, 0, 12, 9.4, .021, .021);
- pMC->Gdhead(1111, "Transition Radiation Detector Version 0");
- pMC->Gdman(18, 4, "MAN");
+ // Position the the TRD-sectors in all TRD-volumes in the spaceframe
+ xpos = 0.;
+ ypos = 0.;
+ zpos = 0.;
+ gMC->Gspos("TRD ",1,"BTR1",xpos,ypos,zpos,0,"ONLY");
+ gMC->Gspos("TRD ",2,"BTR2",xpos,ypos,zpos,0,"ONLY");
+ gMC->Gspos("TRD ",3,"BTR3",xpos,ypos,zpos,0,"ONLY");
}
//
// Create materials for the Transition Radiation Detector
//
+
AliTRD::CreateMaterials();
+
}
//_____________________________________________________________________________
//
// Initialise Transition Radiation Detector after geometry is built
//
+
AliTRD::Init();
- AliMC* pMC = AliMC::GetMC();
- //
- // Retrieve the numeric identifier of the sensitive volumes (gas volume)
- fIdSens1 = pMC->VolId("UT4I");
- fIdSens2 = pMC->VolId("UT4N");
- fIdSens3 = pMC->VolId("UT4O");
+
+ printf("**************************************"
+ " TRD "
+ "**************************************\n");
+ printf("\n Version 0 of TRD initialing, "
+ "symmetric TRD\n\n");
+
+ //
+ // Check that FRAME is there otherwise we have no place where to
+ // put TRD
+ AliModule* FRAME=gAlice->GetModule("FRAME");
+ if(!FRAME) {
+ Error("Ctor","TRD needs FRAME to be present\n");
+ exit(1);
+ } else
+ if(FRAME->IsVersion()!=1) {
+ Error("Ctor","FRAME version 1 needed with this version of TRD\n");
+ exit(1);
+ }
+
+ for (Int_t i = 0; i < 80; i++) printf("*");
+ printf("\n");
+
+ // Identifier of the sensitive volume (amplification region)
+ fIdSens = gMC->VolId("UL06");
+
+ // Identifier of the TRD-spaceframe volumina
+ fIdSpace1 = gMC->VolId("B028");
+ fIdSpace2 = gMC->VolId("B029");
+ fIdSpace3 = gMC->VolId("B030");
+
+ // Identifier of the TRD-driftchambers
+ fIdChamber1 = gMC->VolId("UCIO");
+ fIdChamber2 = gMC->VolId("UCIM");
+ fIdChamber3 = gMC->VolId("UCII");
+
+ printf("**************************************"
+ " TRD "
+ "**************************************\n");
}
//_____________________________________________________________________________
{
//
// Procedure called at every step in the TRD
+ // Fast simulator. If switched on, a hit is produced when a track
+ // crosses the border between amplification region and pad plane.
//
- Int_t vol[3];
- Int_t icopy, idSens, icSens;
+ Int_t vol[3];
+ Int_t iIdSens, icSens;
+ Int_t iIdSpace, icSpace;
+ Int_t iIdChamber, icChamber;
+
+ Int_t secMap1[10] = { 3, 7, 8, 9, 10, 11, 2, 1, 18, 17 };
+ Int_t secMap2[ 5] = { 16, 15, 14, 13, 12 };
+ Int_t secMap3[ 3] = { 5, 6, 4 };
- Float_t hits[4];
+ Float_t hits[4];
- TClonesArray &lhits = *fHits;
+ TLorentzVector p;
+ TClonesArray &lhits = *fHits;
- AliMC* pMC = AliMC::GetMC();
+ // Writing out hits enabled?
+ if (!(fHitsOn)) return;
// Use only charged tracks and count them only once per volume
- if (pMC->TrackCharge() && pMC->TrackExiting()) {
+ if (gMC->TrackCharge() &&
+ gMC->IsTrackExiting()) {
// Check on sensitive volume
- idSens = pMC->CurrentVol(0,icSens);
- if ((idSens == fIdSens1) ||
- (idSens == fIdSens2) ||
- (idSens == fIdSens3)) {
-
+ iIdSens = gMC->CurrentVolID(icSens);
+ if (iIdSens == fIdSens) {
+
+ gMC->TrackPosition(p);
+ for (Int_t i = 0; i < 3; i++) hits[i] = p[i];
+ // No charge created
+ hits[3] = 0;
+
+ iIdSpace = gMC->CurrentVolOffID(4,icSpace );
+ iIdChamber = gMC->CurrentVolOffID(1,icChamber);
+
// The sector number
- pMC->CurrentVolOff(5,0,icopy);
- vol[0] = icopy;
-
+ if (iIdSpace == fIdSpace1)
+ vol[0] = secMap1[icSpace-1];
+ else if (iIdSpace == fIdSpace2)
+ vol[0] = secMap2[icSpace-1];
+ else if (iIdSpace == fIdSpace3)
+ vol[0] = secMap3[icSpace-1];
+
// The chamber number
// 1: outer left
- // 2: neighbouring left
+ // 2: middle left
// 3: inner
- // 4: neighbouring right
+ // 4: middle right
// 5: outer right
- pMC->CurrentVolOff(3,0,icopy);
- if (idSens == fIdSens3)
- vol[1] = 4 * icopy - 3;
- else if (idSens == fIdSens2)
- vol[1] = 2 * icopy;
- else
+ if (iIdChamber == fIdChamber1)
+ vol[1] = (hits[2] < 0 ? 1 : 5);
+ else if (iIdChamber == fIdChamber2)
+ vol[1] = (hits[2] < 0 ? 2 : 4);
+ else if (iIdChamber == fIdChamber3)
vol[1] = 3;
-
+
// The plane number
- pMC->CurrentVolOff(1,0,icopy);
- vol[2] = icopy;
-
- if (fSensSelect) {
- Int_t addthishit = 1;
- if ((fSensPlane) && (vol[2] != fSensPlane )) addthishit = 0;
- if ((fSensChamber) && (vol[1] != fSensChamber)) addthishit = 0;
- if ((fSensSector) && (vol[0] != fSensSector )) addthishit = 0;
- if (addthishit) {
- pMC->TrackPosition(hits);
- hits[3] = 0;
- new(lhits[fNhits++]) AliTRDhit(fIshunt,gAlice->CurrentTrack(),vol,hits);
- }
- }
- else {
- pMC->TrackPosition(hits);
- hits[3] = 0;
- new(lhits[fNhits++]) AliTRDhit(fIshunt,gAlice->CurrentTrack(),vol,hits);
- }
+ vol[2] = icChamber - TMath::Nint((Float_t) (icChamber / 7)) * 6;
+
+ new(lhits[fNhits++]) AliTRDhit(fIshunt,gAlice->CurrentTrack(),vol,hits);
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff