Additional protection for cast from Double_t to Short_t
[u/mrichter/AliRoot.git] / HMPID / AliHMPIDv2.cxx
CommitLineData
8f16e0db 1
2// **************************************************************************
3// * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4// * *
5// * Author: The ALICE Off-line Project. *
6// * Contributors are mentioned in the code where appropriate. *
7// * *
8// * Permission to use, copy, modify and distribute this software and its *
9// * documentation strictly for non-commercial purposes is hereby granted *
10// * without fee, provided that the above copyright notice appears in all *
11// * copies and that both the copyright notice and this permission notice *
12// * appear in the supporting documentation. The authors make no claims *
13// * about the suitability of this software for any purpose. It is *
14// * provided "as is" without express or implied warranty. *
15// **************************************************************************
16
17
a137507f 18#include "AliHMPIDv2.h" //class header
19#include "AliHMPIDParam.h" //StepManager()
20#include "AliHMPIDHit.h" //Hits2SDigs(),StepManager()
21#include "AliHMPIDDigit.h" //Digits2Raw(), Raw2SDigits()
22#include "AliRawReader.h" //Raw2SDigits()
23#include <TVirtualMC.h> //StepManager() for gMC
24#include <TPDGCode.h> //StepHistory()
25#include <AliStack.h> //StepManager(),Hits2SDigits()78.6
8f16e0db 26#include <AliLoader.h> //Hits2SDigits()
27#include <AliRunLoader.h> //Hits2SDigits()
8f16e0db 28#include <AliMC.h> //StepManager()
29#include <AliRun.h> //CreateMaterials()
30#include <AliMagF.h> //CreateMaterials()
31#include <TGeoManager.h> //CreateGeometry()
32#include <TF1.h> //DefineOpticalProperties()
33#include <TF2.h> //DefineOpticalProperties()
34#include <TLorentzVector.h> //IsLostByFresnel()
35#include <AliCDBManager.h> //CreateMaterials()
36#include <AliCDBEntry.h> //CreateMaterials()
322b6a67 37#include <TGeoPhysicalNode.h> //AddAlignableVolumes()
8f16e0db 38
39ClassImp(AliHMPIDv2)
40//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
41void AliHMPIDv2::AddAlignableVolumes()const
42{
43// Associates the symbolic volume name with the corresponding volume path. Interface method from AliModule invoked from AliMC
44// Arguments: none
45// Returns: none
322b6a67 46
47 TGeoHMatrix *pGm = new TGeoHMatrix;
ae5a42aa 48 Double_t trans[3]={0.5*131.24,0.5*126.16,0}; //translation from LORS to TGeo RS (half size AllX, half size allY,0)
322b6a67 49 pGm->SetTranslation(trans);
50
ae5a42aa 51 for(Int_t i=AliHMPIDParam::kMinCh;i<=AliHMPIDParam::kMaxCh;i++) {
322b6a67 52 TGeoPNEntry *pPn=gGeoManager->SetAlignableEntry(Form("/HMPID/Chamber%i",i),Form("ALIC_1/Hmp_%i",i));
a47b5293 53 if(pPn) pPn->SetMatrix(pGm);
322b6a67 54 }
8f16e0db 55}
56//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
57void AliHMPIDv2::CreateMaterials()
58{
59// Definition of available HMPID materials
60// Arguments: none
61// Returns: none
62 AliDebug(1,"Start v2 HMPID.");
63
64 //clm update material definition later on from Antonello
65
66//data from PDG booklet 2002 density [gr/cm^3] rad len [cm] abs len [cm]
67 Float_t aAir[4]={12,14,16,36} , zAir[4]={6,7,8,18} , wAir[4]={0.000124,0.755267,0.231781,0.012827} , dAir=0.00120479; Int_t nAir=4;//mixture 0.9999999
68 Float_t aC6F14[2]={ 12.01 , 18.99} , zC6F14[2]={ 6 , 9} , wC6F14[2]={6 , 14} , dC6F14=1.68 ; Int_t nC6F14=-2;
69 Float_t aSiO2[2]={ 28.09 , 15.99} , zSiO2[2]={14 , 8} , wSiO2[2]={1 , 2} , dSiO2=2.64 ; Int_t nSiO2=-2;
70 Float_t aCH4[2]={ 12.01 , 1.01} , zCH4[2]={ 6 , 1} , wCH4[2]={1 , 4} , dCH4=7.17e-4 ; Int_t nCH4=-2;
71 Float_t aCsI[2]={132.90 ,126.90} , zCsI[2]={55 ,53} , wCsI[2]={1 , 1} , dCsI=0.1 ; Int_t nCsI=-2;
72
73 Float_t aRoha= 12.01 , zRoha= 6 , dRoha= 0.10 , radRoha= 18.80 , absRoha= 86.3/dRoha; //special material- quasi quartz
74 Float_t aCu= 63.55 , zCu= 29 , dCu= 8.96 , radCu= 1.43 , absCu= 134.9/dCu ;
75 Float_t aW=183.84 , zW= 74 , dW= 19.30 , radW= 0.35 , absW= 185.0/dW ;
76 Float_t aAl= 26.98 , zAl= 13 , dAl= 2.70 , radAl= 8.90 , absAl= 106.4/dAl ;
77 Float_t aAr= 39.94 , zAr= 18 , dAr= 1.396e-3, radAr= 14.0 , absAr= 117.2/dAr ;
78
79 Int_t matId=0; //tmp material id number
80 Int_t unsens = 0, sens=1; //sensitive or unsensitive medium
81 Int_t itgfld = gAlice->Field()->Integ(); //type of field intergration 0 no field -1 user in guswim 1 Runge Kutta 2 helix 3 const field along z
82 Float_t maxfld = gAlice->Field()->Max(); //max field value
83 Float_t tmaxfd = -10.0; //max deflection angle due to magnetic field in one step
84 Float_t deemax = - 0.2; //max fractional energy loss in one step
85 Float_t stemax = - 0.1; //mas step allowed [cm]
86 Float_t epsil = 0.001; //abs tracking precision [cm]
87 Float_t stmin = - 0.001; //min step size [cm] in continius process transport, negative value: choose it automatically
88
89 AliMixture(++matId,"Air" ,aAir ,zAir ,dAir ,nAir ,wAir ); AliMedium(kAir ,"Air" ,matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin);
90 AliMixture(++matId,"C6F14",aC6F14,zC6F14,dC6F14,nC6F14,wC6F14); AliMedium(kC6F14,"C6F14",matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin);
91 AliMixture(++matId,"SiO2" ,aSiO2 ,zSiO2 ,dSiO2 ,nSiO2 ,wSiO2 ); AliMedium(kSiO2 ,"SiO2" ,matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin);
92 AliMixture(++matId,"CH4" ,aCH4 ,zCH4 ,dCH4 ,nCH4 ,wCH4 ); AliMedium(kCH4 ,"CH4" ,matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin);
93 AliMixture(++matId,"CsI" ,aCsI ,zCsI ,dCsI ,nCsI ,wCsI ); AliMedium(kCsI ,"CsI" ,matId, sens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin);//sensitive
94
95 AliMixture(++matId ,"Neo" ,aSiO2 ,zSiO2 ,dSiO2 ,nSiO2 ,wSiO2 ); AliMedium(kNeo,"Neo" , matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin); //clm neoceram
96 AliMaterial(++matId,"Roha",aRoha,zRoha,dRoha,radRoha,absRoha); AliMedium(kRoha,"Roha", matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin); //Roha->honeycomb
97
98
99 AliMaterial(++matId,"Cu" ,aCu ,zCu ,dCu ,radCu ,absCu ); AliMedium(kCu ,"Cu" , matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin);
100 AliMaterial(++matId,"W" ,aW ,zW ,dW ,radW ,absW ); AliMedium(kW ,"W" , matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin);
101 AliMaterial(++matId,"Al" ,aAl ,zAl ,dAl ,radAl ,absAl ); AliMedium(kAl ,"Al" , matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin);
102 AliMaterial(++matId,"Ar" ,aAr ,zAr ,dAr ,radAr ,absAr ); AliMedium(kAr ,"Ar" , matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin);
8f16e0db 103}//void AliHMPID::CreateMaterials()
104//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
105void AliHMPIDv2::CreateGeometry()
106{
107//Creates detailed geometry simulation (currently GEANT volumes tree)
108 AliDebug(1,"Start main.");
109 if(!gMC->IsRootGeometrySupported()) return;
110
111 Double_t cm=1,mm=0.1*cm,um=0.001*mm;//default is cm
112
113 TGeoMedium *al =gGeoManager->GetMedium("HMPID_Al");
114 TGeoMedium *ch4 =gGeoManager->GetMedium("HMPID_CH4");
115 TGeoMedium *roha =gGeoManager->GetMedium("HMPID_Roha");
116 TGeoMedium *neoc =gGeoManager->GetMedium("HMPID_Neo");
117 TGeoMedium *c6f14=gGeoManager->GetMedium("HMPID_C6F14");
118 TGeoMedium *sio2 =gGeoManager->GetMedium("HMPID_SiO2");
119 TGeoMedium *cu =gGeoManager->GetMedium("HMPID_Cu");
120 TGeoMedium *w =gGeoManager->GetMedium("HMPID_W");
121 TGeoMedium *csi =gGeoManager->GetMedium("HMPID_CsI");
122 TGeoMedium *ar =gGeoManager->GetMedium("HMPID_Ar");
123
78bc9cb2 124 TGeoVolume *hmp=gGeoManager->MakeBox ("Hmp",ch4,1681*mm/2, 1466*mm/2,(2*80*mm+2*60*mm)/2);//2033P1 z from p84 TDR
8f16e0db 125
126 TString title=GetTitle();
a47b5293 127 if(title.Contains("TestBeam")){
128 gGeoManager->GetVolume("ALIC")->AddNode(hmp,0);
129 }else{
ae5a42aa 130 for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){//place 7 chambers
8f16e0db 131 TGeoHMatrix *pMatrix=new TGeoHMatrix;
a47b5293 132 IdealPosition(iCh,pMatrix);
8f16e0db 133 gGeoManager->GetVolume("ALIC")->AddNode(hmp,iCh,pMatrix);
a47b5293 134 }
135 }
8f16e0db 136
137 TGeoRotation *rot=new TGeoRotation("HwireRot"); rot->RotateY(90); //rotate wires around Y to be along X (initially along Z)
138 TGeoVolume *sbo=gGeoManager->MakeBox ("Hsbo",ch4 , 1419*mm/2 , 1378.00*mm/2 , 50.5*mm/2);//2072P1
139 TGeoVolume *cov=gGeoManager->MakeBox ("Hcov",al , 1419*mm/2 , 1378.00*mm/2 , 0.5*mm/2);
140 TGeoVolume *hon=gGeoManager->MakeBox ("Hhon",roha , 1359*mm/2 , 1318.00*mm/2 , 49.5*mm/2);
141 TGeoVolume *rad=gGeoManager->MakeBox ("Hrad",c6f14, 1330*mm/2 , 413.00*mm/2 , 24.0*mm/2); //2011P1
142 TGeoVolume *neo=gGeoManager->MakeBox ("Hneo",neoc , 1330*mm/2 , 413.00*mm/2 , 4.0*mm/2);
143 TGeoVolume *win=gGeoManager->MakeBox ("Hwin",sio2 , 1330*mm/2 , 413.00*mm/2 , 5.0*mm/2);
144 TGeoVolume *si1=gGeoManager->MakeBox ("Hsi1",sio2 , 1330*mm/2 , 5.00*mm/2 , 15.0*mm/2);
145 TGeoVolume *si2=gGeoManager->MakeBox ("Hsi2",neoc , 10*mm/2 , 403.00*mm/2 , 15.0*mm/2);
146 TGeoVolume *spa=gGeoManager->MakeTube("Hspa",sio2 , 0*mm , 5.00*mm , 15.0*mm/2);
147 TGeoVolume *fr4=gGeoManager->MakeBox ("Hfr4",ch4 , 1407*mm/2 , 1366.00*mm/2 , 15.0*mm/2);//2043P1
148 TGeoVolume *f4a=gGeoManager->MakeBox ("Hf4a",al , 1407*mm/2 , 1366.00*mm/2 , 10.0*mm/2);
149 TGeoVolume *f4i=gGeoManager->MakeBox ("Hf4i",ch4 , 1323*mm/2 , 1296.00*mm/2 , 10.0*mm/2);
150 TGeoVolume *col=gGeoManager->MakeTube("Hcol",cu , 0*mm , 100.00*um , 1323.0*mm/2);
78bc9cb2 151 TGeoVolume *sec=gGeoManager->MakeBox ("Hsec",ch4 , 648*mm/2 , 411.00*mm/2 , 6.2*mm/2);//sec=gap
152
a47b5293 153 Double_t cellx=8.04*mm,celly=8.4*mm; Int_t nPadX=80, nPadY=48;
154 TGeoVolume *gap=gGeoManager->MakeBox ("Hgap",ch4 , cellx*nPadX/2 , celly*nPadY/2 , 6.2*mm/2); //x=8.04*80 y=8.4*48 z=pad+pad-ano+marign 2006p1
155 TGeoVolume *row= gap->Divide ("Hrow",2,nPadY,0,0);//along Y->48 rows
156 TGeoVolume *cel= row->Divide ("Hcel",1,nPadX,0,0);//along X->80 cells
157 TGeoVolume *cat=gGeoManager->MakeTube("Hcat",cu , 0.00*mm , 50.00*um , cellx/2);
158 TGeoVolume *ano=gGeoManager->MakeTube("Hano",w , 0.00*mm , 20.00*um , cellx/2);
159 TGeoVolume *pad=gGeoManager->MakeBox ("Hpad",csi , 7.54*mm/2 , 7.90*mm/2 , 1.7*mm/2); //2006P1
78bc9cb2 160 TGeoVolume *fr1=gGeoManager->MakeBox ("Hfr1",al , 1463*mm/2 , 1422.00*mm/2 , 58.3*mm/2);//2040P1
161 TGeoVolume *fr1up=gGeoManager->MakeBox ("Hfr1up",ch4,(1426.00-37.00)*mm/2 , (1385.00-37.00)*mm/2 , 20.0*mm/2);//2040P1
162 TGeoVolume *fr1perUpBig=gGeoManager->MakeBox ("Hfr1perUpBig",ch4,1389*mm/2,35*mm/2,10*mm/2);
163 TGeoVolume *fr1perUpSma=gGeoManager->MakeBox ("Hfr1perUpSma",ch4,35*mm/2,(1385-37-2*35)*mm/2,10*mm/2);
164 TGeoVolume *fr1perDowBig=gGeoManager->MakeBox ("Hfr1perDowBig",ch4,1389*mm/2,46*mm/2,2.3*mm/2);
165 TGeoVolume *fr1perDowSma=gGeoManager->MakeBox ("Hfr1perDowSma",ch4,46*mm/2,(1385-37-2*46)*mm/2,2.3*mm/2);
166
167 TGeoVolume *ppf=gGeoManager->MakeBox ("Hppf",al , 648*mm/2 , 411.00*mm/2 , 38.3*mm/2);//2001P2
168 TGeoVolume *lar=gGeoManager->MakeBox ("Hlar",ar , 181*mm/2 , 89.25*mm/2 , 38.3*mm/2);//2001P2
169 TGeoVolume *smo=gGeoManager->MakeBox ("Hsmo",ar , 114*mm/2 , 89.25*mm/2 , 38.3*mm/2);//2001P2
170
171
ae5a42aa 172
173 TGeoVolume *fr3= gGeoManager->MakeBox("Hfr3", al, 1463*mm/2, 1422*mm/2, 34*mm/2);//2041P1
174 TGeoVolume *fr3up= gGeoManager->MakeBox("Hfr3up", ch4, 1323*mm/2, 1282*mm/2, 20*mm/2);//2041P1
175 TGeoVolume *fr3down=gGeoManager->MakeBox("Hfr3down", ch4, 1437*mm/2, 1370*mm/2, 14*mm/2);//2041P1
176
177
178
8f16e0db 179// ^ Y z= z=-12mm z=98.25mm ALIC->7xHmp (virtual)-->1xHsbo (virtual) --->2xHcov (real) 2072P1
180// | ____________________________________ | |-->1xHhon (real) 2072P1
181// | | ______ ____ ______ | |
182// | | | | | * | | | |->3xHrad (virtual) --->1xHneo (real) 2011P1
183// | |50.5mm| |24mm| * |45.5mm| | | |-->1xHwin (real) 2011P1
184// | | | | | * | | | | |-->2xHsi1 (real) 2011P1
185// | | | |____| * |______| | | |-->2xHsi2 (real) 2011P1
186// | | | ____ * ______ | | |->30xHspa (real) 2011P1
187// | | | | | * | | | |
188// | | | | | * | | | |->1xHfr4 (vitual) --->1xHf4a (real)---->1xHf4i(virtual) 2043P1
189// | | sb | | rad| * | | | | |-->322xHcol (real) 2043P1
190// | | | |____| * |______| | |
78bc9cb2 191// | | | ____ * ______ | |->1xHfr1 (real) --> 6xHppf(real) ---->8xHlar (virtual) 2001P1
192// | | | | | * | | | | |--->8xHsmo (virtual) 2001P1
8f16e0db 193// | | | | | * | | | |
78bc9cb2 194// | | | | | * | | | |-> 6xHgap (virtual) --->48xHrow (virtual) -->80xHcel (virtual) -->4xHcat (real) from p84 TDR
8f16e0db 195// | |______| |____| * |______| | |-->2xHano (real) from p84 TDR
196// |____________________________________| |-->1xHpad (real) from p84 TDR
197// --->Z
198 hmp->AddNode(sbo ,1,new TGeoTranslation( 0*mm, 0*mm, -73.75*mm)); //p.84 TDR
199 sbo->AddNode(hon ,1,new TGeoTranslation( 0*mm,0*mm, 0*mm)); //2072P1
200 sbo->AddNode(cov ,1,new TGeoTranslation( 0*mm,0*mm, +25*mm));
201 sbo->AddNode(cov ,2,new TGeoTranslation( 0*mm,0*mm, -25*mm));
202 hmp->AddNode(rad,2,new TGeoTranslation( 0*mm,+434*mm, -12.00*mm));
203 hmp->AddNode(rad,1,new TGeoTranslation( 0*mm, 0*mm, -12.00*mm));
204 hmp->AddNode(rad,0,new TGeoTranslation( 0*mm,-434*mm, -12.00*mm));
205 rad->AddNode(neo,1,new TGeoTranslation( 0*mm, 0*mm, -10.0*mm));
206 rad->AddNode(win,1,new TGeoTranslation( 0*mm, 0*mm, 9.5*mm));
207 rad->AddNode(si1,1,new TGeoTranslation( 0*mm,-204*mm, -0.5*mm)); rad->AddNode(si1,2,new TGeoTranslation( 0*mm,+204*mm, -0.5*mm));
208 rad->AddNode(si2,1,new TGeoTranslation(-660*mm, 0*mm, -0.5*mm)); rad->AddNode(si2,2,new TGeoTranslation(+660*mm, 0*mm, -0.5*mm));
209 for(Int_t i=0;i<3;i++) for(Int_t j=0;j<10;j++) rad->AddNode(spa,10*i+j,new TGeoTranslation(-1330*mm/2+116*mm+j*122*mm,(i-1)*105*mm,-0.5*mm));
210 hmp->AddNode(fr4,1,new TGeoTranslation( 0*mm, 0*mm, 9.00*mm)); //p.84 TDR
211 for(int i=1;i<=322;i++) fr4->AddNode(col,i,new TGeoCombiTrans( 0*mm, -1296/2*mm+i*4*mm,-5*mm,rot)); //F4 2043P1
212 fr4->AddNode(f4a,1,new TGeoTranslation( 0*mm,0*mm, 2.5*mm));
213 f4a->AddNode(f4i,1,new TGeoTranslation( 0*mm,0*mm, 0*mm));
78bc9cb2 214 hmp->AddNode(sec,4,new TGeoTranslation(-335*mm,+433*mm, 78.6*mm)); hmp->AddNode(sec,5,new TGeoTranslation(+335*mm,+433*mm, 78.6*mm));
215 hmp->AddNode(sec,2,new TGeoTranslation(-335*mm, 0*mm, 78.6*mm)); hmp->AddNode(sec,3,new TGeoTranslation(+335*mm, 0*mm, 78.6*mm));
216 hmp->AddNode(sec,0,new TGeoTranslation(-335*mm,-433*mm, 78.6*mm)); hmp->AddNode(sec,1,new TGeoTranslation(+335*mm,-433*mm, 78.6*mm));
217 sec->AddNode(gap,1,new TGeoTranslation(0,0,0.*mm));
8f16e0db 218 cel->AddNode(cat,1,new TGeoCombiTrans (0, 3.15*mm , -2.70*mm , rot)); //4 cathode wires
219 cel->AddNode(ano,1,new TGeoCombiTrans (0, 2.00*mm , -0.29*mm , rot)); //2 anod wires
220 cel->AddNode(cat,2,new TGeoCombiTrans (0, 1.05*mm , -2.70*mm , rot));
221 cel->AddNode(cat,3,new TGeoCombiTrans (0, -1.05*mm , -2.70*mm , rot));
222 cel->AddNode(ano,2,new TGeoCombiTrans (0, -2.00*mm , -0.29*mm , rot));
223 cel->AddNode(cat,4,new TGeoCombiTrans (0, -3.15*mm , -2.70*mm , rot));
224 cel->AddNode(pad,1,new TGeoTranslation(0, 0.00*mm , 2.25*mm)); //1 pad
78bc9cb2 225
226 hmp->AddNode(fr1,1,new TGeoTranslation(0.,0.,(80.+1.7)*mm+58.3*mm/2.));
227 fr1->AddNode(fr1up,1,new TGeoTranslation(0.,0.,(58.3*mm-20.00*mm)/2.));
228
229 fr1->AddNode(fr1perUpBig,0,new TGeoTranslation(0.,(1385-37-35)*mm/2.,(58.3*mm-20.00*2*mm-10.0*mm)/2.));
230 fr1->AddNode(fr1perUpSma,0,new TGeoTranslation((1426-37-35)*mm/2.,0.,(58.3*mm-20.00*2*mm-10.0*mm)/2.));
231 fr1->AddNode(fr1perUpBig,1,new TGeoTranslation(0.,-(1385-37-35)*mm/2.,(58.3*mm-20.00*2*mm-10.0*mm)/2.));
232 fr1->AddNode(fr1perUpSma,1,new TGeoTranslation(-(1426-37-35)*mm/2.,0.,(58.3*mm-20.00*2*mm-10.0*mm)/2.));
233
234 fr1->AddNode(fr1perDowBig,0,new TGeoTranslation(0.,(1385-37-46)*mm/2.,(-58.3*mm+2.3*mm)/2.));
235 fr1->AddNode(fr1perDowSma,0,new TGeoTranslation((1426-37-46)*mm/2.,0.,(-58.3*mm+2.3*mm)/2.));
236 fr1->AddNode(fr1perDowBig,1,new TGeoTranslation(0.,-(1385-37-46)*mm/2.,(-58.3*mm+2.3*mm)/2.));
237 fr1->AddNode(fr1perDowSma,1,new TGeoTranslation(-(1426-37-46)*mm/2.,0.,(-58.3*mm+2.3*mm)/2.));
238
239
240 fr1->AddNode(ppf,4,new TGeoTranslation(-335*mm,433*mm,(-58.3+38.3)*mm/2.)); fr1->AddNode(ppf,5,new TGeoTranslation(335*mm,433*mm,(-58.3+38.3)*mm/2.));
241 fr1->AddNode(ppf,2,new TGeoTranslation(-335*mm,0.,(-58.3+38.3)*mm/2.)); fr1->AddNode(ppf,3,new TGeoTranslation(335*mm,0.,(-58.3+38.3)*mm/2.));
242 fr1->AddNode(ppf,0,new TGeoTranslation(-335*mm,-433*mm,(-58.3+38.3)*mm/2.)); fr1->AddNode(ppf,1,new TGeoTranslation(335*mm,-433*mm,(-58.3+38.3)*mm/2.));
243
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248
8f16e0db 249// ^ Y single cell 5.5mm CH4 = 1*mm CsI + 4.45*mm CsI x cath +0.05*mm safety margin
250// | ______________________________
251// | | | ^ ||
252// | | 1.05mm ||
253// 2.2*mm| xxxxxxxxxxxxxxxxxxxxxxxxxxxx |-- 50um x || cat shift x=0mm , y= 3.15mm , z=-2.70mm
254// | | ||
255// | | ||
256// __ | .......................... | 2.1mm 20un . || ano shift x=0mm , y= 2.00mm , z=-0.29mm
257// | | ||
258// | | ||
259// | xxxxxxxxxxxxxxxxxxxxxxxxxxxx |-- x || cat shift x=0mm , y= 1.05mm , z=-2.70mm
260// | | ||
261// | | 8.4mm ||
262// 4*mm | | 2.1mm || pad shift x=0mm , y= 0.00mm , z=2.25*mm
263// | | ||
264// | | ||
265// | xxxxxxxxxxxxxxxxxxxxxxxxxxxx |-- x || cat shift x=0mm , y=-1.05mm , z=-2.70mm
266// | | ||
267// | | ||
268// __ | .......................... | 2.1mm . 2.04mm|| ano shift x=0mm , y=-2.00mm , z=-0.29mm
269// | | ||
270// | | ||
271// | xxxxxxxxxxxxxxxxxxxxxxxxxxxx |-- x 4.45mm || cat shift x=0mm , y=-3.15mm , z=-2.70mm
272// 2.2*mm| | ||
273// | | 1.05mm ||
274// |______________________________| v ||
275// < 8 mm >
276// ----->X ----->Z
78bc9cb2 277 ppf->AddNode(lar,0,new TGeoTranslation(-224.5*mm,-151.875*mm, 0.*mm));
278 ppf->AddNode(lar,1,new TGeoTranslation(-224.5*mm,- 50.625*mm, 0.*mm));
279 ppf->AddNode(lar,2,new TGeoTranslation(-224.5*mm,+ 50.625*mm, 0.*mm));
280 ppf->AddNode(lar,3,new TGeoTranslation(-224.5*mm,+151.875*mm, 0.*mm));
281 ppf->AddNode(lar,4,new TGeoTranslation(+224.5*mm,-151.875*mm, 0.*mm));
282 ppf->AddNode(lar,5,new TGeoTranslation(+224.5*mm,- 50.625*mm, 0.*mm));
283 ppf->AddNode(lar,6,new TGeoTranslation(+224.5*mm,+ 50.625*mm, 0.*mm));
284 ppf->AddNode(lar,7,new TGeoTranslation(+224.5*mm,+151.875*mm, 0.*mm));
285 ppf->AddNode(smo,0,new TGeoTranslation(- 65.0*mm,-151.875*mm, 0.*mm));
286 ppf->AddNode(smo,1,new TGeoTranslation(- 65.0*mm,- 50.625*mm, 0.*mm));
287 ppf->AddNode(smo,2,new TGeoTranslation(- 65.0*mm,+ 50.625*mm, 0.*mm));
288 ppf->AddNode(smo,3,new TGeoTranslation(- 65.0*mm,+151.875*mm, 0.*mm));
289 ppf->AddNode(smo,4,new TGeoTranslation(+ 65.0*mm,-151.875*mm, 0.*mm));
290 ppf->AddNode(smo,5,new TGeoTranslation(+ 65.0*mm,- 50.625*mm, 0.*mm));
291 ppf->AddNode(smo,6,new TGeoTranslation(+ 65.0*mm,+ 50.625*mm, 0.*mm));
292 ppf->AddNode(smo,7,new TGeoTranslation(+ 65.0*mm,+151.875*mm, 0.*mm));
8f16e0db 293
ae5a42aa 294hmp->AddNode(fr3,1,new TGeoTranslation(0.,0.,(80.-29.)*mm-34.*mm/2));
295 fr3->AddNode( fr3up,1, new TGeoTranslation(0., 0., 7*mm));
296 fr3->AddNode(fr3down,1,new TGeoTranslation(0., 0., -10*mm));
8f16e0db 297
298 AliDebug(1,"Stop v2. HMPID option");
299}//CreateGeometry()
300//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
301void AliHMPIDv2::Init()
302{
303// This methode defines ID for sensitive volumes, i.e. such geometry volumes for which there are if(gMC->CurrentVolID()==XXX) statements in StepManager()
304// Arguments: none
305// Returns: none
306 AliDebug(1,"Start v2 HMPID.");
307 fIdPad = gMC->VolId("Hpad");
308 fIdCell = gMC->VolId("Hcel");
309 AliDebug(1,"Stop v2 HMPID.");
310}
311//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
312void AliHMPIDv2::DefineOpticalProperties()
313{
314// Optical properties definition.
315 const Int_t kNbins=30; //number of photon energy points
316 Float_t emin=5.5,emax=8.5; //Photon energy range,[eV]
317 Float_t aEckov [kNbins];
318 Float_t aAbsRad[kNbins], aAbsWin[kNbins], aAbsGap[kNbins], aAbsMet[kNbins];
319 Float_t aIdxRad[kNbins], aIdxWin[kNbins], aIdxGap[kNbins], aIdxMet[kNbins], aIdxPc[kNbins];
320 Float_t aQeAll [kNbins], aQePc [kNbins];
321
322 TF2 *pRaIF=new TF2("HidxRad","sqrt(1+0.554*(1239.84/x)^2/((1239.84/x)^2-5796)-0.0005*(y-20))" ,emin,emax,0,50); //DiMauro mail temp 0-50 degrees C
323 TF1 *pWiIF=new TF1("HidxWin","sqrt(1+46.411/(10.666*10.666-x*x)+228.71/(18.125*18.125-x*x))" ,emin,emax); //SiO2 idx TDR p.35
324 TF1 *pGaIF=new TF1("HidxGap","1+0.12489e-6/(2.62e-4 - x*x/1239.84/1239.84)" ,emin,emax); //?????? from where
325
326 TF1 *pRaAF=new TF1("HabsRad","(x<7.8)*(gaus+gaus(3))+(x>=7.8)*0.0001" ,emin,emax); //fit from DiMauro data 28.10.03
327 pRaAF->SetParameters(3.20491e16,-0.00917890,0.742402,3035.37,4.81171,0.626309);
328 TF1 *pWiAF=new TF1("HabsWin","(x<8.2)*(818.8638-301.0436*x+36.89642*x*x-1.507555*x*x*x)+(x>=8.2)*0.0001" ,emin,emax); //fit from DiMauro data 28.10.03
329 TF1 *pGaAF=new TF1("HabsGap","(x<7.75)*6512.399+(x>=7.75)*3.90743e-2/(-1.655279e-1+6.307392e-2*x-8.011441e-3*x*x+3.392126e-4*x*x*x)",emin,emax); //????? from where
330
331 TF1 *pQeF =new TF1("Hqe" ,"0+(x>6.07267)*0.344811*(1-exp(-1.29730*(x-6.07267)))" ,emin,emax); //fit from DiMauro data 28.10.03
59d9d4b3 332
333 TString title=GetTitle();
334 Bool_t isFlatIdx=title.Contains("FlatIdx");
335
8f16e0db 336 for(Int_t i=0;i<kNbins;i++){
337 Float_t eV=emin+0.1*i; //Ckov energy in eV
338 aEckov [i] =1e-9*eV; //Ckov energy in GeV
59d9d4b3 339 aAbsRad[i]=pRaAF->Eval(eV); (isFlatIdx)? aIdxRad[i]=1.292: aIdxRad[i]=pRaIF->Eval(eV,20);
340 aAbsWin[i]=pWiAF->Eval(eV); aIdxWin[i]=pWiIF->Eval(eV);
341 aAbsGap[i]=pGaAF->Eval(eV); aIdxGap[i]=pGaIF->Eval(eV);
8f16e0db 342 aQeAll[i] =1; //QE for all other materials except for PC must be 1.
343 aAbsMet[i] =0.0001; aIdxMet[i]=0; //metal ref idx must be 0 in order to reflect photon
344 aIdxPc [i]=1; aQePc [i]=pQeF->Eval(eV); //PC ref idx must be 1 in order to apply photon to QE conversion
345
346 }
347 gMC->SetCerenkov((*fIdtmed)[kC6F14] , kNbins, aEckov, aAbsRad , aQeAll , aIdxRad );
348 gMC->SetCerenkov((*fIdtmed)[kSiO2] , kNbins, aEckov, aAbsWin , aQeAll , aIdxWin );
349 gMC->SetCerenkov((*fIdtmed)[kCH4] , kNbins, aEckov, aAbsGap , aQeAll , aIdxGap );
350 gMC->SetCerenkov((*fIdtmed)[kCu] , kNbins, aEckov, aAbsMet , aQeAll , aIdxMet );
351 gMC->SetCerenkov((*fIdtmed)[kW] , kNbins, aEckov, aAbsMet , aQeAll , aIdxMet ); //n=0 means reflect photons
352 gMC->SetCerenkov((*fIdtmed)[kCsI] , kNbins, aEckov, aAbsMet , aQePc , aIdxPc ); //n=1 means convert photons
353 gMC->SetCerenkov((*fIdtmed)[kAl] , kNbins, aEckov, aAbsMet , aQeAll , aIdxMet );
354 delete pRaAF;delete pWiAF;delete pGaAF; delete pRaIF; delete pWiIF; delete pGaIF; delete pQeF;
355}
356//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
357Bool_t AliHMPIDv2::IsLostByFresnel()
358{
359// Calculate probability for the photon to be lost by Fresnel reflection.
360 TLorentzVector p4;
361 Double_t mom[3],localMom[3];
362 gMC->TrackMomentum(p4); mom[0]=p4(1); mom[1]=p4(2); mom[2]=p4(3);
363 localMom[0]=0; localMom[1]=0; localMom[2]=0;
364 gMC->Gmtod(mom,localMom,2);
365 Double_t localTc = localMom[0]*localMom[0]+localMom[2]*localMom[2];
366 Double_t localTheta = TMath::ATan2(TMath::Sqrt(localTc),localMom[1]);
367 Double_t cotheta = TMath::Abs(TMath::Cos(localTheta));
368 if(gMC->GetRandom()->Rndm() < Fresnel(p4.E()*1e9,cotheta,1)){
369 AliDebug(1,"Photon lost");
370 return kTRUE;
371 }else
372 return kFALSE;
373}//IsLostByFresnel()
374//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
375void AliHMPIDv2::GenFee(Float_t qtot)
376{
377// Generate FeedBack photons for the current particle. To be invoked from StepManager().
378// eloss=0 means photon so only pulse height distribution is to be analysed.
379 TLorentzVector x4;
380 gMC->TrackPosition(x4);
381 Int_t iNphotons=gMC->GetRandom()->Poisson(0.02*qtot); //# of feedback photons is proportional to the charge of hit
382 AliDebug(1,Form("N photons=%i",iNphotons));
383 Int_t j;
384 Float_t cthf, phif, enfp = 0, sthf, e1[3], e2[3], e3[3], vmod, uswop,dir[3], phi,pol[3], mom[4];
385//Generate photons
386 for(Int_t i=0;i<iNphotons;i++){//feedbacks loop
387 Double_t ranf[2];
388 gMC->GetRandom()->RndmArray(2,ranf); //Sample direction
389 cthf=ranf[0]*2-1.0;
390 if(cthf<0) continue;
391 sthf = TMath::Sqrt((1 - cthf) * (1 + cthf));
392 phif = ranf[1] * 2 * TMath::Pi();
393
394 if(Double_t randomNumber=gMC->GetRandom()->Rndm()<=0.57)
395 enfp = 7.5e-9;
396 else if(randomNumber<=0.7)
397 enfp = 6.4e-9;
398 else
399 enfp = 7.9e-9;
400
401
402 dir[0] = sthf * TMath::Sin(phif); dir[1] = cthf; dir[2] = sthf * TMath::Cos(phif);
403 gMC->Gdtom(dir, mom, 2);
404 mom[0]*=enfp; mom[1]*=enfp; mom[2]*=enfp;
405 mom[3] = TMath::Sqrt(mom[0]*mom[0]+mom[1]*mom[1]+mom[2]*mom[2]);
406
407 // Polarisation
408 e1[0]= 0; e1[1]=-dir[2]; e1[2]= dir[1];
409 e2[0]=-dir[1]; e2[1]= dir[0]; e2[2]= 0;
410 e3[0]= dir[1]; e3[1]= 0; e3[2]=-dir[0];
411
412 vmod=0;
413 for(j=0;j<3;j++) vmod+=e1[j]*e1[j];
414 if (!vmod) for(j=0;j<3;j++) {
415 uswop=e1[j];
416 e1[j]=e3[j];
417 e3[j]=uswop;
418 }
419 vmod=0;
420 for(j=0;j<3;j++) vmod+=e2[j]*e2[j];
421 if (!vmod) for(j=0;j<3;j++) {
422 uswop=e2[j];
423 e2[j]=e3[j];
424 e3[j]=uswop;
425 }
426
427 vmod=0; for(j=0;j<3;j++) vmod+=e1[j]*e1[j]; vmod=TMath::Sqrt(1/vmod); for(j=0;j<3;j++) e1[j]*=vmod;
428 vmod=0; for(j=0;j<3;j++) vmod+=e2[j]*e2[j]; vmod=TMath::Sqrt(1/vmod); for(j=0;j<3;j++) e2[j]*=vmod;
429
430 phi = gMC->GetRandom()->Rndm()* 2 * TMath::Pi();
431 for(j=0;j<3;j++) pol[j]=e1[j]*TMath::Sin(phi)+e2[j]*TMath::Cos(phi);
432 gMC->Gdtom(pol, pol, 2);
433 Int_t outputNtracksStored;
434 gAlice->GetMCApp()->PushTrack(1, //transport
435 gAlice->GetMCApp()->GetCurrentTrackNumber(),//parent track
436 50000051, //PID
437 mom[0],mom[1],mom[2],mom[3], //track momentum
438 x4.X(),x4.Y(),x4.Z(),x4.T(), //track origin
439 pol[0],pol[1],pol[2], //polarization
440 kPFeedBackPhoton, //process ID
441 outputNtracksStored, //on return how many new photons stored on stack
442 1.0); //weight
443 }//feedbacks loop
444 AliDebug(1,"Stop.");
445}//GenerateFeedbacks()
446//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
447void AliHMPIDv2::Hits2SDigits()
448{
449// Interface method ivoked from AliSimulation to create a list of sdigits corresponding to list of hits. Every hit generates one or more sdigits.
450// Arguments: none
451// Returns: none
452 AliDebug(1,"Start.");
453 for(Int_t iEvt=0;iEvt < GetLoader()->GetRunLoader()->GetNumberOfEvents();iEvt++){ //events loop
454 GetLoader()->GetRunLoader()->GetEvent(iEvt); //get next event
455
456 if(!GetLoader()->TreeH()) {GetLoader()->LoadHits(); }
457 if(!GetLoader()->TreeS()) {GetLoader()->MakeTree("S"); MakeBranch("S");}//to
458
459 for(Int_t iEnt=0;iEnt<GetLoader()->TreeH()->GetEntries();iEnt++){//prims loop
460 GetLoader()->TreeH()->GetEntry(iEnt);
461 Hit2Sdi(Hits(),SdiLst());
462 }//prims loop
463 GetLoader()->TreeS()->Fill();
464 GetLoader()->WriteSDigits("OVERWRITE");
465 SdiReset();
466 }//events loop
467 GetLoader()->UnloadHits();
468 GetLoader()->UnloadSDigits();
469 AliDebug(1,"Stop.");
470}//Hits2SDigits()
471//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
472void AliHMPIDv2::Hit2Sdi(TClonesArray *pHitLst,TClonesArray *pSdiLst)
473{
474// Converts list of hits to list of sdigits.
475// Arguments: pHitLst - list of hits provided not empty
476// pSDigLst - list of sdigits where to store the results
477// Returns: none
478 for(Int_t iHit=0;iHit<pHitLst->GetEntries();iHit++){ //hits loop
479 AliHMPIDHit *pHit=(AliHMPIDHit*)pHitLst->At(iHit); //get pointer to current hit
480 pHit->Hit2Sdi(pSdiLst); //convert this hit to list of sdigits
481 }//hits loop loop
482}//Hits2Sdi()
483//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
484void AliHMPIDv2::Digits2Raw()
485{
486// Interface method invoked by AliSimulation to create raw data streams from digits. Events loop is done in AliSimulation
487// Arguments: none
488// Returns: none
489 AliDebug(1,"Start.");
490 GetLoader()->LoadDigits();
491 TTree * treeD = GetLoader()->TreeD();
492 if(!treeD) {
493 AliError("No digits tree!");
494 return;
495 }
496 treeD->GetEntry(0);
497
498 AliHMPIDDigit::WriteRaw(DigLst());
499
500 GetLoader()->UnloadDigits();
501 AliDebug(1,"Stop.");
502}//Digits2Raw()
503//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
504Float_t AliHMPIDv2::Fresnel(Float_t ene,Float_t pdoti, Bool_t pola)
505{
506// Correction for Fresnel ???????????
507// Arguments: ene - photon energy [GeV],
508// PDOTI=COS(INC.ANG.), PDOTR=COS(POL.PLANE ROT.ANG.)
509// Returns:
510 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,
511 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,
512 7.8,7.9,8.0,8.1,8.2,8.3,8.4,8.5};
513 Float_t csin[36] = {2.14,2.21,2.33,2.48,2.76,2.97,2.99,2.59,2.81,3.05,
514 2.86,2.53,2.55,2.66,2.79,2.96,3.18,3.05,2.84,2.81,2.38,2.11,
515 2.01,2.13,2.39,2.73,3.08,3.15,2.95,2.73,2.56,2.41,2.12,1.95,
516 1.72,1.53};
517 Float_t csik[36] = {0.,0.,0.,0.,0.,0.196,0.408,0.208,0.118,0.49,0.784,0.543,
518 0.424,0.404,0.371,0.514,0.922,1.102,1.139,1.376,1.461,1.253,0.878,
519 0.69,0.612,0.649,0.824,1.347,1.571,1.678,1.763,1.857,1.824,1.824,
520 1.714,1.498};
521 Float_t xe=ene;
522 Int_t j=Int_t(xe*10)-49;
523 Float_t cn=csin[j]+((csin[j+1]-csin[j])/0.1)*(xe-en[j]);
524 Float_t ck=csik[j]+((csik[j+1]-csik[j])/0.1)*(xe-en[j]);
525
526 //FORMULAE FROM HANDBOOK OF OPTICS, 33.23 OR
527 //W.R. HUNTER, J.O.S.A. 54 (1964),15 , J.O.S.A. 55(1965),1197
528
529 Float_t sinin=TMath::Sqrt(1-pdoti*pdoti);
530 Float_t tanin=sinin/pdoti;
531
532 Float_t c1=cn*cn-ck*ck-sinin*sinin;
533 Float_t c2=4*cn*cn*ck*ck;
534 Float_t aO=TMath::Sqrt(0.5*(TMath::Sqrt(c1*c1+c2)+c1));
535 Float_t b2=0.5*(TMath::Sqrt(c1*c1+c2)-c1);
536
537 Float_t rs=((aO-pdoti)*(aO-pdoti)+b2)/((aO+pdoti)*(aO+pdoti)+b2);
538 Float_t rp=rs*((aO-sinin*tanin)*(aO-sinin*tanin)+b2)/((aO+sinin*tanin)*(aO+sinin*tanin)+b2);
539
540
541 //CORRECTION FACTOR FOR SURFACE ROUGHNESS
542 //B.J. STAGG APPLIED OPTICS, 30(1991),4113
543
544 Float_t sigraf=18.;
545 Float_t lamb=1240/ene;
546 Float_t fresn;
547
548 Float_t rO=TMath::Exp(-(4*TMath::Pi()*pdoti*sigraf/lamb)*(4*TMath::Pi()*pdoti*sigraf/lamb));
549
550 if(pola)
551 {
552 Float_t pdotr=0.8; //DEGREE OF POLARIZATION : 1->P , -1->S
553 fresn=0.5*(rp*(1+pdotr)+rs*(1-pdotr));
554 }
555 else
556 fresn=0.5*(rp+rs);
557
558 fresn = fresn*rO;
559 return fresn;
560}//Fresnel()
561//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
562void AliHMPIDv2::Print(Option_t *option)const
563{
564// Debug printout
565 TObject::Print(option);
566}//void AliHMPID::Print(Option_t *option)const
567//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
568Bool_t AliHMPIDv2::Raw2SDigits(AliRawReader *pRR)
569{
570// Interface methode ivoked from AliSimulation to create a list of sdigits from raw digits. Events loop is done in AliSimulation
571// Arguments: pRR- raw reader
572// Returns: kTRUE on success (currently ignored in AliSimulation::ConvertRaw2SDigits())
573 AliHMPIDDigit sdi; //tmp sdigit, raw digit will be converted to it
574
575 if(!GetLoader()->TreeS()) {MakeTree("S"); MakeBranch("S");}
576
577 TClonesArray *pSdiLst=SdiLst(); Int_t iSdiCnt=0; //tmp list of sdigits for all chambers
578 pRR->Select("HMPID",0,13);//select all HMPID DDL files
579 UInt_t w32=0;
580 while(pRR->ReadNextInt(w32)){//raw records loop (in selected DDL files)
581 UInt_t ddl=pRR->GetDDLID(); //returns 0,1,2 ... 13
ae5a42aa 582 if(!sdi.Raw(ddl,w32,pRR)) continue;
8f16e0db 583 new((*pSdiLst)[iSdiCnt++]) AliHMPIDDigit(sdi); //add this digit to the tmp list
584 }//raw records loop
585 GetLoader()->TreeS()->Fill(); GetLoader()->WriteSDigits("OVERWRITE");//write out sdigits
586 SdiReset();
587 return kTRUE;
588}//Raw2SDigits
589//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
590void AliHMPIDv2::StepCount()
591{
592// Count number of ckovs created
593}
594//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
595void AliHMPIDv2::StepHistory()
596{
597// This methode is invoked from StepManager() in order to print out
598 static Int_t iStepN;
599 const char *sParticle;
600 switch(gMC->TrackPid()){
601 case kProton: sParticle="PROTON" ;break;
602 case kNeutron: sParticle="neutron" ;break;
603 case kGamma: sParticle="gamma" ;break;
604 case 50000050: sParticle="CKOV" ;break;
605 case kPi0: sParticle="Pi0" ;break;
606 case kPiPlus: sParticle="Pi+" ;break;
607 case kPiMinus: sParticle="Pi-" ;break;
608 case kElectron: sParticle="electron" ;break;
609 default: sParticle="not known" ;break;
610 }
611
612 TString flag="fanny combination";
613 if(gMC->IsTrackAlive())
614 if(gMC->IsTrackEntering()) flag="enters to";
615 else if(gMC->IsTrackExiting()) flag="exits from";
616 else if(gMC->IsTrackInside()) flag="inside";
617 else
618 if(gMC->IsTrackStop()) flag="stoped in";
619
620
621
622
623 Int_t vid=0,copy=0;
624 TString path=gMC->CurrentVolName(); path.Prepend("-");path.Prepend(gMC->CurrentVolOffName(1));//current volume and his mother are always there
625 vid=gMC->CurrentVolOffID(2,copy); if(vid) {path.Prepend("-");path.Prepend(gMC->VolName(vid));}
626 vid=gMC->CurrentVolOffID(3,copy); if(vid) {path.Prepend("-");path.Prepend(gMC->VolName(vid));}
627
628
629 Printf("Step %i: %s (%i) %s %s m=%.6f GeV q=%.1f dEdX=%.4f Etot=%.4f",iStepN,sParticle,gMC->TrackPid(),flag.Data(),path.Data(),gMC->TrackMass(),gMC->TrackCharge(),gMC->Edep()*1e9,gMC->Etot());
630
631 Double_t gMcTrackPos[3]; gMC->TrackPosition(gMcTrackPos[0],gMcTrackPos[1],gMcTrackPos[2]);
632 Double_t gMcTrackPosLoc[3]; gMC->Gmtod(gMcTrackPos,gMcTrackPosLoc,1);
633 Printf("gMC Track Position (MARS) x: %5.3lf, y: %5.3lf, z: %5.3lf (r: %5.3lf) ---> (LOC) x: %5.3f, y: %5.3f, z: %5.3f",gMcTrackPos[0],gMcTrackPos[1],gMcTrackPos[2],TMath::Sqrt(gMcTrackPos[0]*gMcTrackPos[0]+gMcTrackPos[1]*gMcTrackPos[1]+gMcTrackPos[2]*gMcTrackPos[2]),gMcTrackPosLoc[0],gMcTrackPosLoc[1],gMcTrackPosLoc[2]);
634
635
636
637 Printf("Step %i: tid=%i flags alive=%i disap=%i enter=%i exit=%i inside=%i out=%i stop=%i new=%i",
638 iStepN, gAlice->GetMCApp()->GetCurrentTrackNumber(),
639 gMC->IsTrackAlive(), gMC->IsTrackDisappeared(),gMC->IsTrackEntering(), gMC->IsTrackExiting(),
640 gMC->IsTrackInside(),gMC->IsTrackOut(), gMC->IsTrackStop(), gMC->IsNewTrack());
641
642 Float_t a,z,den,rad,abs; a=z=den=rad=abs=-1;
643 Int_t mid=gMC->CurrentMaterial(a,z,den,rad,abs);
644 Printf("Step %i: mid=%i a=%7.2f z=%7.2f den=%9.4f rad=%9.2f abs=%9.2f\n\n",iStepN,mid,a,z,den,rad,abs);
645
646 TArrayI proc; gMC->StepProcesses(proc);
647 Printf("Processes in this step:");
648 for ( int i = 0 ; i < proc.GetSize(); i++)
649 {
650 Printf("%s",TMCProcessName[proc.At(i)]);
651 }
652 Printf("End process list");
653
654 iStepN++;
655}//StepHistory()
656//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
657void AliHMPIDv2::StepManager()
658{
659// Full Step Manager.
660// Arguments: none
661// Returns: none
662// StepHistory(); return; //uncomment to print tracks history
663 // StepCount(); return; //uncomment to count photons
664
665 Int_t copy; //volume copy aka node
666
667//Treat photons
668 if((gMC->TrackPid()==50000050||gMC->TrackPid()==50000051)&&gMC->CurrentVolID(copy)==fIdPad){ //photon (Ckov or feedback) hit PC (fIdPad)
669 if(gMC->Edep()>0){ //photon survided QE test i.e. produces electron
670 if(IsLostByFresnel()){ gMC->StopTrack(); return;} //photon lost due to fersnel reflection on PC
59d9d4b3 671 gMC->CurrentVolOffID(5,copy); //current chamber since geomtry tree is Hmp-Hsec-Hgap-Hrow-Hcel-Hpad
8f16e0db 672 Int_t tid= gMC->GetStack()->GetCurrentTrackNumber(); //take TID
673 Int_t pid= gMC->TrackPid(); //take PID
674 Float_t etot= gMC->Etot(); //total hpoton energy, [GeV]
675 Double_t x[3]; gMC->TrackPosition(x[0],x[1],x[2]); //take MARS position at entrance to PC
676 Float_t xl,yl; AliHMPIDParam::Instance()->Mars2Lors(copy,x,xl,yl); //take LORS position
8f16e0db 677 new((*fHits)[fNhits++])AliHMPIDHit(copy,etot,pid,tid,xl,yl,x); //HIT for photon, position at P, etot will be set to Q
59d9d4b3 678 if(fDoFeed) GenFee(etot); //generate feedback photons etot is modified in hit ctor to Q of hit
8f16e0db 679 }//photon hit PC and DE >0
680 }//photon hit PC
681
682//Treat charged particles
683 static Float_t eloss; //need to store mip parameters between different steps
684 static Double_t in[3];
685 if(gMC->TrackCharge() && gMC->CurrentVolID(copy)==fIdCell){ //charged particle in amplification gap (fIdCell)
686 if(gMC->IsTrackEntering()||gMC->IsNewTrack()) { //entering or newly created
687 eloss=0; //reset Eloss collector
688 gMC->TrackPosition(in[0],in[1],in[2]); //take position at the entrance
689 }else if(gMC->IsTrackExiting()||gMC->IsTrackStop()||gMC->IsTrackDisappeared()){ //exiting or disappeared
690 eloss +=gMC->Edep(); //take into account last step Eloss
691 gMC->CurrentVolOffID(4,copy); //take current chamber since geometry tree is Hmp-Hsec-Hgap-Hrow-Hcel
692 Int_t tid= gMC->GetStack()->GetCurrentTrackNumber(); //take TID
693 Int_t pid= gMC->TrackPid(); //take PID
694 Double_t out[3]; gMC->TrackPosition(out[0],out[1],out[2]); //take MARS position at exit
695 out[0]=0.5*(out[0]+in[0]); //>
696 out[1]=0.5*(out[1]+in[1]); //take hit position at the anod plane
697 out[2]=0.5*(out[2]+in[2]); //>
698 Float_t xl,yl;AliHMPIDParam::Instance()->Mars2Lors(copy,out,xl,yl); //take LORS position
8f16e0db 699 new((*fHits)[fNhits++])AliHMPIDHit(copy,eloss,pid,tid,xl,yl,out); //HIT for MIP, position near anod plane, eloss will be set to Q
59d9d4b3 700 if(fDoFeed) GenFee(eloss); //generate feedback photons
8f16e0db 701 }else //just going inside
702 eloss += gMC->Edep(); //collect this step eloss
703 }//MIP in GAP
704}//StepManager()
705//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
80c418c4 706void AliHMPIDv2::TestPoint(Int_t ch,Float_t x,Float_t y)
707{
708// Utility method to check the validity of geometry by poviding some crucial points
709// Arguments: ch,x,y- crucial point definition (cm) in LORS
710// Returns: none
711 Double_t mars[3];
712 AliHMPIDParam::Instance()->Lors2Mars(ch,x,y,mars);
713 Printf("(ch=%i,locX=%.2f,locY=%.2f) %s",ch,x,y,gGeoManager->FindNode(mars[0],mars[1],mars[2])->GetName());
714}//TestPoint()
715//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
716void AliHMPIDv2::TestGeom()
717{
a137507f 718//
719// Test method to check geometry
720//
e4290ede 721 //TGeoManager::Import("misaligned_geometry.root");
722 TGeoManager::Import("geometry.root");
ae5a42aa 723 for(Int_t ch=AliHMPIDParam::kMinCh;ch<=AliHMPIDParam::kMaxCh;ch++)
80c418c4 724 TestPoint(ch,0,0);
a137507f 725}//TestPoint()
a47b5293 726//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
727
728void AliHMPIDv2::IdealPosition(Int_t iCh,TGeoHMatrix *pMatrix) //ideal position of given chamber
729{
730// Construct ideal position matrix for a given chamber
731// Arguments: iCh- chamber ID; pMatrix- pointer to precreated unity matrix where to store the results
732// Returns: none
733 const Double_t kAngHor=19.5; // horizontal angle between chambers 19.5 grad
734 const Double_t kAngVer=20; // vertical angle between chambers 20 grad
735 const Double_t kAngCom=30; // common HMPID rotation with respect to x axis 30 grad
736 const Double_t kTrans[3]={490,0,0}; // center of the chamber is on window-gap surface
737 pMatrix->RotateY(90); // rotate around y since initial position is in XY plane -> now in YZ plane
738 pMatrix->SetTranslation(kTrans); // now plane in YZ is shifted along x
739 switch(iCh){
740 case 0: pMatrix->RotateY(kAngHor); pMatrix->RotateZ(-kAngVer); break; //right and down
741 case 1: pMatrix->RotateZ(-kAngVer); break; //down
742 case 2: pMatrix->RotateY(kAngHor); break; //right
743 case 3: break; //no rotation
744 case 4: pMatrix->RotateY(-kAngHor); break; //left
745 case 5: pMatrix->RotateZ(kAngVer); break; //up
746 case 6: pMatrix->RotateY(-kAngHor); pMatrix->RotateZ(kAngVer); break; //left and up
747 }
748 pMatrix->RotateZ(kAngCom); //apply common rotation in XY plane
749}