/************************************************************************** * 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 1.25 2003/01/14 10:50:19 alibrary Cleanup of STEER coding conventions Revision 1.24 2002/11/21 17:01:56 alibrary Removing AliMCProcess and AliMC Revision 1.23 2002/10/23 07:24:57 alibrary Introducing Riostream.h Revision 1.22 2002/10/14 14:57:29 hristov Merging the VirtualMC branch to the main development branch (HEAD) Revision 1.20.6.2 2002/07/24 10:07:21 alibrary Updating VirtualMC Revision 1.21 2002/07/23 10:02:46 morsch All volume names start with "S". Revision 1.20 2001/10/30 12:18:45 morsch Place station 3 into DDIP only if DDIP is present. Revision 1.19 2001/07/17 09:51:38 morsch Place station 3 inside Dipole. Revision 1.18 2001/04/06 11:24:43 morsch Dependency on implementations of AliSegmentation and AliMUONResponse moved to AliMUONFactory class. Static method Build() builds the MUON system out of chambers, segmentation and response. Revision 1.17 2001/03/17 10:07:20 morsch Correct inconsistent variable name / method name / comments. Revision 1.16 2001/01/27 08:50:50 morsch Call non default constructors of segmentation classes. Revision 1.15 2001/01/17 20:57:45 hristov Unused variable removed Revision 1.14 2000/12/21 22:42:55 morsch Constructor contains default set-up for segmentation. Record charged particles only. Revision 1.13 2000/10/06 10:03:38 morsch Call to gMC->VolId() moved to Init() Revision 1.12 2000/10/02 21:28:09 fca Removal of useless dependecies via forward declarations Revision 1.11 2000/06/27 07:31:07 morsch fChambers = 0; deleted from constructor. Revision 1.10 2000/06/26 14:02:38 morsch Add class AliMUONConstants with MUON specific constants using static memeber data and access methods. Revision 1.9 2000/06/15 07:58:49 morsch Code from MUON-dev joined Revision 1.8.4.9 2000/06/12 19:20:49 morsch Constructor sets default geometry, segmentation and response parameters. Revision 1.8.4.8 2000/06/09 21:55:28 morsch Most coding rule violations corrected. Revision 1.8.4.7 2000/05/02 13:15:18 morsch Coding rule violations RS3, RN13 corected Revision 1.8.4.6 2000/05/02 10:24:26 morsch Public access to fdGas and fdAlu of AliMUONChamber replaced by getters. Revision 1.8.4.5 2000/04/26 19:58:47 morsch Obsolete reference to trig_ removed. Revision 1.8.4.4 2000/04/19 19:42:47 morsch change NCH to kNCH Revision 1.8.4.3 2000/02/17 08:17:43 morsch Gammas and neutrons are also scored in the stepmanager */ ///////////////////////////////////////////////////////// // Manager and hits classes for set:MUON version 0 // ///////////////////////////////////////////////////////// #include #include #include #include #include #include #include "AliMUONv0.h" #include "AliMUONChamber.h" #include "AliRun.h" #include "AliMagF.h" #include "AliMUONHit.h" #include "AliMUONPadHit.h" #include "AliCallf77.h" #include "AliConst.h" #include "AliMUONConstants.h" #include "AliMUONFactory.h" ClassImp(AliMUONv0) //___________________________________________ AliMUONv0::AliMUONv0() : AliMUON() { // Constructor fChambers = 0; } //___________________________________________ AliMUONv0::AliMUONv0(const char *name, const char *title) : AliMUON(name,title) { // Constructor AliMUONFactory factory; factory.Build(this, title); } void AliMUONv0::CreateGeometry() { // Creates coarse geometry for hit density simulations Int_t *idtmed = fIdtmed->GetArray()-1099; // Float_t zpos, dAlu, tpar[3]; Int_t idAir=idtmed[1100]; Int_t idAlu=idtmed[1103]; AliMUONChamber *iChamber; // Loop over all chambers (tracking and trigger) for (Int_t ch = 0; ch < AliMUONConstants::NCh(); ch++) { char alu[8]; char gas[8]; iChamber=(AliMUONChamber*) (*fChambers)[ch]; // Z of the chamber zpos=iChamber->Z(); dAlu=iChamber->DAlu(); if (ch < AliMUONConstants::NTrackingCh()) { // tracking chambers sprintf(alu,"SA0%1d",ch); sprintf(gas,"SG0%1d",ch); } else { // trigger chambers sprintf(alu,"SA%2d",ch); sprintf(gas,"SG%2d",ch); } // tpar[0] = iChamber->RInner(); tpar[1] = iChamber->ROuter(); tpar[2] = (dAlu+0.2)/2.; if (ch !=4 && ch !=5) { gMC->Gsvolu(alu, "TUBE", idAlu, tpar, 3); tpar[2] = 0.1; gMC->Gsvolu(gas, "TUBE", idAir, tpar, 3); } else { gMC->Gsvolu(alu, "TUBE", idAlu, tpar, 3); tpar[2] = 0.1; gMC->Gsvolu(gas, "TUBE", idAir, tpar, 3); } gMC->Gspos(gas, 1, alu, 0., 0., 0., 0, "ONLY"); if (ch == 4 || ch ==5) { if (gMC->VolId("DDIP")) { gMC->Gspos(alu, 1, "DDIP", 0., 0., zpos, 0, "ONLY"); } else { gMC->Gspos(alu, 1, "ALIC", 0., 0., zpos, 0, "ONLY"); } } else { gMC->Gspos(alu, 1, "ALIC", 0., 0., zpos, 0, "ONLY"); } } } //___________________________________________ void AliMUONv0::CreateMaterials() { // Creates materials for coarse geometry AliMaterial(15, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500); AliMaterial( 9, "ALUMINIUM$", 26.98, 13. , 2.7, 8.9, 37.2); Float_t epsil = .001; // Tracking precision, Float_t stemax = -1.; // Maximum displacement for multiple scat Float_t tmaxfd = -20.; // Maximum angle due to field deflection Float_t deemax = -.3; // Maximum fractional energy loss, DLS Float_t stmin = -.8; Int_t isxfld = gAlice->Field()->Integ(); Float_t sxmgmx = gAlice->Field()->Max(); // // Air AliMedium(1, "AIR_CH_US ", 15, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); AliMedium(4, "ALU_CH_US ", 9, 0, isxfld, sxmgmx, tmaxfd, fMaxStepAlu, fMaxDestepAlu, epsil, stmin); } void AliMUONv0::Init() { // // Initialize Tracking Chambers // char vName[8]; printf("\n\n\n Start Init for version 0 - CPC chamber type\n\n\n"); for (Int_t i=0; iInit(); // Set sensitive volume Id if (i < AliMUONConstants::NTrackingCh()) { // tracking chambers sprintf(vName,"SG0%1d",i); } else { // trigger chambers sprintf(vName,"SG%2d",i); } ((AliMUONChamber*) (*fChambers)[i])->SetGid(gMC->VolId(vName)); } } void AliMUONv0::StepManager() { // // Step manager for hit density simulations Int_t copy, id; static Int_t idvol; static Int_t vol[2]; Int_t ipart; TLorentzVector pos; TLorentzVector mom; Float_t theta,phi; // modifs perso static Float_t hits[15]; TClonesArray &lhits = *fHits; // // Only gas gap inside chamber // Tag chambers and record hits when track enters idvol=-1; id=gMC->CurrentVolID(copy); for (Int_t i=1; i<=AliMUONConstants::NCh(); i++) { if(id==((AliMUONChamber*)(*fChambers)[i-1])->GetGid()){ vol[0]=i; idvol=i-1; } } if (idvol == -1) return; // // Get current particle id (ipart), track position (pos) and momentum (mom) gMC->TrackPosition(pos); gMC->TrackMomentum(mom); ipart = gMC->TrackPid(); // // record hits when track enters ... if( !(gMC->TrackCharge()) ) return; if( gMC->IsTrackEntering()) { // printf("\n Particle entering %f %f %f", pos[0], pos[1], pos[2] ); 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; hits[0] = Float_t(ipart); // Geant3 particle type hits[1] = pos[0]; // X-position for hit hits[2] = pos[1]; // Y-position for hit hits[3] = pos[2]; // Z-position for hit hits[4] = theta; // theta angle of incidence hits[5] = phi; // phi angle of incidence hits[8] = -1; // first padhit hits[9] = -1; // last pad hit hits[10] = mom[3]; // hit Energy hits[11] = mom[0]; // Px hits[12] = mom[1]; // Py hits[13] = mom[2]; // Pz hits[14] = gMC->TrackTime(); // time of flight new(lhits[fNhits++]) AliMUONHit(fIshunt,gAlice->CurrentTrack(),vol,hits); } // if( gMC->IsTrackExiting()) gMC->StopTrack(); }