1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
17 //_________________________________________________________________________
18 // Version of AliPHOSv0 which allows for keeping all hits in TreeH
20 //*-- Author: Gines MARTINEZ (SUBATECH)
23 // --- ROOT system ---
29 // --- Standard library ---
34 #include <strstream.h>
36 // --- AliRoot header files ---
38 #include "AliPHOSv1.h"
39 #include "AliPHOSHit.h"
40 #include "AliPHOSDigit.h"
41 #include "AliPHOSReconstructioner.h"
47 //____________________________________________________________________________
48 AliPHOSv1::AliPHOSv1()
55 //____________________________________________________________________________
56 AliPHOSv1::AliPHOSv1(const char *name, const char *title):
60 fHits= new TClonesArray("AliPHOSHit",1000) ;
63 //____________________________________________________________________________
64 AliPHOSv1::~AliPHOSv1()
73 if ( fEmcRecPoints ) {
74 fEmcRecPoints->Delete() ;
75 delete fEmcRecPoints ;
79 if ( fPpsdRecPoints ) {
80 fPpsdRecPoints->Delete() ;
81 delete fPpsdRecPoints ;
85 if ( fTrackSegments ) {
86 fTrackSegments->Delete() ;
87 delete fTrackSegments ;
92 //____________________________________________________________________________
93 void AliPHOSv1::AddHit(Int_t shunt, Int_t primary, Int_t tracknumber, Int_t Id, Float_t * hits)
95 // Add a hit to the hit list.
96 // In this version of AliPHOSv0, a PHOS hit is real geant
97 // hits in a single crystal or in a single PPSD gas cell
99 // cout << "Primary is " << primary << endl;
100 //cout << "Tracknumber is " << tracknumber << endl;
101 //cout << "Vol Id is " << Id << endl;
102 //cout << "hits is " << hits[0] << " " << hits[1] << " " << hits[2] << " " << hits[3] <<endl;
104 // cout << " Adding a hit number " << fNhits << endl ;
106 TClonesArray <mphits = *fHits ;
111 newHit = new AliPHOSHit(shunt, primary, tracknumber, Id, hits) ;
113 // We DO want to save in TreeH the raw hits
114 // TClonesArray &lhits = *fHits;
115 // cout << " Adding a hit to fHits TCloneArray number " << fNhits << endl ;
116 new(ltmphits[fNhits]) AliPHOSHit(*newHit) ;
119 // cout << " Added a hit to fHits TCloneArray number " << fNhits << endl ;
120 // We do not want to save in TreeH the raw hits
121 // new(lhits[fNhits]) AliPHOSHit(*newHit) ;
124 // Please note that the fTmpHits array must survive up to the
125 // end of the events, so it does not appear e.g. in ResetHits() (
126 // which is called at the end of each primary).
135 //___________________________________________________________________________
136 void AliPHOSv1::FinishEvent()
138 // Makes the digits from the sum of summed hit in a single crystal or PPSD gas cell
139 // Adds to the energy the electronic noise
140 // Keeps digits with energy above fDigitThreshold
142 // Save the cumulated hits instead of raw hits (need to create the branch myself)
143 // It is put in the Digit Tree because the TreeH is filled after each primary
144 // and the TreeD at the end of the event.
149 TClonesArray &lDigits = *fDigits ;
151 AliPHOSDigit * newdigit ;
152 AliPHOSDigit * curdigit ;
153 Bool_t deja = kFALSE ;
155 for ( i = 0 ; i < fNhits ; i++ ) {
156 hit = (AliPHOSHit*)fHits->At(i) ;
157 newdigit = new AliPHOSDigit( hit->GetPrimary(), hit->GetId(), Digitize( hit->GetEnergy() ) ) ;
159 for ( j = 0 ; j < fNdigits ; j++) {
160 curdigit = (AliPHOSDigit*) lDigits[j] ;
161 if ( *curdigit == *newdigit) {
162 *curdigit = *curdigit + *newdigit ;
167 new(lDigits[fNdigits]) AliPHOSDigit(* newdigit) ;
174 // Noise induced by the PIN diode of the PbWO crystals
176 Float_t energyandnoise ;
177 for ( i = 0 ; i < fNdigits ; i++ ) {
178 newdigit = (AliPHOSDigit * ) fDigits->At(i) ;
179 fGeom->AbsToRelNumbering(newdigit->GetId(), relid) ;
181 if (relid[1]==0){ // Digits belong to EMC (PbW0_4 crystals)
182 energyandnoise = newdigit->GetAmp() + Digitize(gRandom->Gaus(0., fPinElectronicNoise)) ;
184 if (energyandnoise < 0 )
187 if ( newdigit->GetAmp() < fDigitThreshold ) // if threshold not surpassed, remove digit from list
188 fDigits->RemoveAt(i) ;
192 fDigits->Compress() ;
194 fNdigits = fDigits->GetEntries() ;
195 for (i = 0 ; i < fNdigits ; i++) {
196 newdigit = (AliPHOSDigit *) fDigits->At(i) ;
197 newdigit->SetIndexInList(i) ;
202 void AliPHOSv1::StepManager(void)
204 // Accumulates hits as long as the track stays in a single crystal or PPSD gas Cell
206 Int_t relid[4] ; // (box, layer, row, column) indices
207 Float_t xyze[4] ; // position wrt MRS and energy deposited
211 Int_t tracknumber = gAlice->CurrentTrack() ;
212 Int_t primary = gAlice->GetPrimary( gAlice->CurrentTrack() );
214 TString name = fGeom->GetName() ;
215 if ( name == "GPS2" ) { // the CPV is a PPSD
216 if( gMC->CurrentVolID(copy) == gMC->VolId("GCEL") ) // We are inside a gas cell
218 gMC->TrackPosition(pos) ;
222 xyze[3] = gMC->Edep() ;
224 if ( xyze[3] != 0 ) { // there is deposited energy
225 gMC->CurrentVolOffID(5, relid[0]) ; // get the PHOS Module number
226 gMC->CurrentVolOffID(3, relid[1]) ; // get the Micromegas Module number
227 // 1-> Geom->GetNumberOfModulesPhi() * fGeom->GetNumberOfModulesZ() upper
228 // > fGeom->GetNumberOfModulesPhi() * fGeom->GetNumberOfModulesZ() lower
229 gMC->CurrentVolOffID(1, relid[2]) ; // get the row number of the cell
230 gMC->CurrentVolID(relid[3]) ; // get the column number
232 // get the absolute Id number
235 fGeom->RelToAbsNumbering(relid, absid) ;
237 // add current hit to the hit list
238 AddHit(fIshunt, primary, tracknumber, absid, xyze);
240 } // there is deposited energy
241 } // We are inside the gas of the CPV
242 } // GPS2 configuration
244 if(gMC->CurrentVolID(copy) == gMC->VolId("PXTL") ) // We are inside a PBWO crystal
246 gMC->TrackPosition(pos) ;
250 xyze[3] = gMC->Edep() ;
252 if ( xyze[3] != 0 ) {
253 gMC->CurrentVolOffID(10, relid[0]) ; // get the PHOS module number ;
254 relid[1] = 0 ; // means PBW04
255 gMC->CurrentVolOffID(4, relid[2]) ; // get the row number inside the module
256 gMC->CurrentVolOffID(3, relid[3]) ; // get the cell number inside the module
258 // get the absolute Id number
261 fGeom->RelToAbsNumbering(relid, absid) ;
263 // add current hit to the hit list
265 AddHit(fIshunt, primary,tracknumber, absid, xyze);
267 } // there is deposited energy
268 } // we are inside a PHOS Xtal