Moving loading base after raw
[u/mrichter/AliRoot.git] / HMPID / AliHMPIDv2.cxx
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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()
37
38ClassImp(AliHMPIDv2)
39//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
40void AliHMPIDv2::AddAlignableVolumes()const
41{
42// Associates the symbolic volume name with the corresponding volume path. Interface method from AliModule invoked from AliMC
43// Arguments: none
44// Returns: none
45 for(Int_t i=AliHMPIDDigit::kMinCh;i<=AliHMPIDDigit::kMaxCh;i++)
46 gGeoManager->SetAlignableEntry(Form("/HMPID/Chamber%i",i),Form("ALIC_1/Hmp_%i",i)); //clm ???
47}
48//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
49void AliHMPIDv2::CreateMaterials()
50{
51// Definition of available HMPID materials
52// Arguments: none
53// Returns: none
54 AliDebug(1,"Start v2 HMPID.");
55
56 //clm update material definition later on from Antonello
57
58//data from PDG booklet 2002 density [gr/cm^3] rad len [cm] abs len [cm]
59 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
60 Float_t aC6F14[2]={ 12.01 , 18.99} , zC6F14[2]={ 6 , 9} , wC6F14[2]={6 , 14} , dC6F14=1.68 ; Int_t nC6F14=-2;
61 Float_t aSiO2[2]={ 28.09 , 15.99} , zSiO2[2]={14 , 8} , wSiO2[2]={1 , 2} , dSiO2=2.64 ; Int_t nSiO2=-2;
62 Float_t aCH4[2]={ 12.01 , 1.01} , zCH4[2]={ 6 , 1} , wCH4[2]={1 , 4} , dCH4=7.17e-4 ; Int_t nCH4=-2;
63 Float_t aCsI[2]={132.90 ,126.90} , zCsI[2]={55 ,53} , wCsI[2]={1 , 1} , dCsI=0.1 ; Int_t nCsI=-2;
64
65 Float_t aRoha= 12.01 , zRoha= 6 , dRoha= 0.10 , radRoha= 18.80 , absRoha= 86.3/dRoha; //special material- quasi quartz
66 Float_t aCu= 63.55 , zCu= 29 , dCu= 8.96 , radCu= 1.43 , absCu= 134.9/dCu ;
67 Float_t aW=183.84 , zW= 74 , dW= 19.30 , radW= 0.35 , absW= 185.0/dW ;
68 Float_t aAl= 26.98 , zAl= 13 , dAl= 2.70 , radAl= 8.90 , absAl= 106.4/dAl ;
69 Float_t aAr= 39.94 , zAr= 18 , dAr= 1.396e-3, radAr= 14.0 , absAr= 117.2/dAr ;
70
71 Int_t matId=0; //tmp material id number
72 Int_t unsens = 0, sens=1; //sensitive or unsensitive medium
73 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
74 Float_t maxfld = gAlice->Field()->Max(); //max field value
75 Float_t tmaxfd = -10.0; //max deflection angle due to magnetic field in one step
76 Float_t deemax = - 0.2; //max fractional energy loss in one step
77 Float_t stemax = - 0.1; //mas step allowed [cm]
78 Float_t epsil = 0.001; //abs tracking precision [cm]
79 Float_t stmin = - 0.001; //min step size [cm] in continius process transport, negative value: choose it automatically
80
81 AliMixture(++matId,"Air" ,aAir ,zAir ,dAir ,nAir ,wAir ); AliMedium(kAir ,"Air" ,matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin);
82 AliMixture(++matId,"C6F14",aC6F14,zC6F14,dC6F14,nC6F14,wC6F14); AliMedium(kC6F14,"C6F14",matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin);
83 AliMixture(++matId,"SiO2" ,aSiO2 ,zSiO2 ,dSiO2 ,nSiO2 ,wSiO2 ); AliMedium(kSiO2 ,"SiO2" ,matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin);
84 AliMixture(++matId,"CH4" ,aCH4 ,zCH4 ,dCH4 ,nCH4 ,wCH4 ); AliMedium(kCH4 ,"CH4" ,matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin);
85 AliMixture(++matId,"CsI" ,aCsI ,zCsI ,dCsI ,nCsI ,wCsI ); AliMedium(kCsI ,"CsI" ,matId, sens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin);//sensitive
86
87 AliMixture(++matId ,"Neo" ,aSiO2 ,zSiO2 ,dSiO2 ,nSiO2 ,wSiO2 ); AliMedium(kNeo,"Neo" , matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin); //clm neoceram
88 AliMaterial(++matId,"Roha",aRoha,zRoha,dRoha,radRoha,absRoha); AliMedium(kRoha,"Roha", matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin); //Roha->honeycomb
89
90
91 AliMaterial(++matId,"Cu" ,aCu ,zCu ,dCu ,radCu ,absCu ); AliMedium(kCu ,"Cu" , matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin);
92 AliMaterial(++matId,"W" ,aW ,zW ,dW ,radW ,absW ); AliMedium(kW ,"W" , matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin);
93 AliMaterial(++matId,"Al" ,aAl ,zAl ,dAl ,radAl ,absAl ); AliMedium(kAl ,"Al" , matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin);
94 AliMaterial(++matId,"Ar" ,aAr ,zAr ,dAr ,radAr ,absAr ); AliMedium(kAr ,"Ar" , matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin);
95
96 DefineOpticalProperties();
97}//void AliHMPID::CreateMaterials()
98//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
99void AliHMPIDv2::CreateGeometry()
100{
101//Creates detailed geometry simulation (currently GEANT volumes tree)
102 AliDebug(1,"Start main.");
103 if(!gMC->IsRootGeometrySupported()) return;
104
105 Double_t cm=1,mm=0.1*cm,um=0.001*mm;//default is cm
106
107 TGeoMedium *al =gGeoManager->GetMedium("HMPID_Al");
108 TGeoMedium *ch4 =gGeoManager->GetMedium("HMPID_CH4");
109 TGeoMedium *roha =gGeoManager->GetMedium("HMPID_Roha");
110 TGeoMedium *neoc =gGeoManager->GetMedium("HMPID_Neo");
111 TGeoMedium *c6f14=gGeoManager->GetMedium("HMPID_C6F14");
112 TGeoMedium *sio2 =gGeoManager->GetMedium("HMPID_SiO2");
113 TGeoMedium *cu =gGeoManager->GetMedium("HMPID_Cu");
114 TGeoMedium *w =gGeoManager->GetMedium("HMPID_W");
115 TGeoMedium *csi =gGeoManager->GetMedium("HMPID_CsI");
116 TGeoMedium *ar =gGeoManager->GetMedium("HMPID_Ar");
117
78bc9cb2 118 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 119
120 TString title=GetTitle();
121 if(title.Contains("TestBeam") )
122 {
123 gGeoManager->GetVolume("ALIC")->AddNode(hmp,0,new TGeoTranslation(5.0*mm/2 , 5.0*mm/2, 1000.0*mm));
124 }
125 else
126 {
127 for(Int_t iCh=AliHMPIDDigit::kMinCh;iCh<=AliHMPIDDigit::kMaxCh;iCh++){//place 7 chambers
128 TGeoHMatrix *pMatrix=new TGeoHMatrix;
129 AliHMPIDParam::IdealPosition(iCh,pMatrix);
130 gGeoManager->GetVolume("ALIC")->AddNode(hmp,iCh,pMatrix);
131 }
132 }
133
134 TGeoRotation *rot=new TGeoRotation("HwireRot"); rot->RotateY(90); //rotate wires around Y to be along X (initially along Z)
135 TGeoVolume *sbo=gGeoManager->MakeBox ("Hsbo",ch4 , 1419*mm/2 , 1378.00*mm/2 , 50.5*mm/2);//2072P1
136 TGeoVolume *cov=gGeoManager->MakeBox ("Hcov",al , 1419*mm/2 , 1378.00*mm/2 , 0.5*mm/2);
137 TGeoVolume *hon=gGeoManager->MakeBox ("Hhon",roha , 1359*mm/2 , 1318.00*mm/2 , 49.5*mm/2);
138 TGeoVolume *rad=gGeoManager->MakeBox ("Hrad",c6f14, 1330*mm/2 , 413.00*mm/2 , 24.0*mm/2); //2011P1
139 TGeoVolume *neo=gGeoManager->MakeBox ("Hneo",neoc , 1330*mm/2 , 413.00*mm/2 , 4.0*mm/2);
140 TGeoVolume *win=gGeoManager->MakeBox ("Hwin",sio2 , 1330*mm/2 , 413.00*mm/2 , 5.0*mm/2);
141 TGeoVolume *si1=gGeoManager->MakeBox ("Hsi1",sio2 , 1330*mm/2 , 5.00*mm/2 , 15.0*mm/2);
142 TGeoVolume *si2=gGeoManager->MakeBox ("Hsi2",neoc , 10*mm/2 , 403.00*mm/2 , 15.0*mm/2);
143 TGeoVolume *spa=gGeoManager->MakeTube("Hspa",sio2 , 0*mm , 5.00*mm , 15.0*mm/2);
144 TGeoVolume *fr4=gGeoManager->MakeBox ("Hfr4",ch4 , 1407*mm/2 , 1366.00*mm/2 , 15.0*mm/2);//2043P1
145 TGeoVolume *f4a=gGeoManager->MakeBox ("Hf4a",al , 1407*mm/2 , 1366.00*mm/2 , 10.0*mm/2);
146 TGeoVolume *f4i=gGeoManager->MakeBox ("Hf4i",ch4 , 1323*mm/2 , 1296.00*mm/2 , 10.0*mm/2);
147 TGeoVolume *col=gGeoManager->MakeTube("Hcol",cu , 0*mm , 100.00*um , 1323.0*mm/2);
78bc9cb2 148 TGeoVolume *sec=gGeoManager->MakeBox ("Hsec",ch4 , 648*mm/2 , 411.00*mm/2 , 6.2*mm/2);//sec=gap
149
150 TGeoVolume *gap=gGeoManager->MakeBox ("Hgap",ch4 , 640*mm/2 , 403.20*mm/2 , 6.2*mm/2);//gap=pad+ano+cat
8f16e0db 151 TGeoVolume *cat=gGeoManager->MakeTube("Hcat",cu , 0*mm , 50.00*um , 8.0*mm/2);
152 TGeoVolume *ano=gGeoManager->MakeTube("Hano",w , 0*mm , 20.00*um , 8.0*mm/2);
78bc9cb2 153 TGeoVolume *pad=gGeoManager->MakeBox ("Hpad",csi , 8*mm/2 , 8.40*mm/2 , 1.7*mm/2);
154 TGeoVolume *fr1=gGeoManager->MakeBox ("Hfr1",al , 1463*mm/2 , 1422.00*mm/2 , 58.3*mm/2);//2040P1
155 TGeoVolume *fr1up=gGeoManager->MakeBox ("Hfr1up",ch4,(1426.00-37.00)*mm/2 , (1385.00-37.00)*mm/2 , 20.0*mm/2);//2040P1
156 TGeoVolume *fr1perUpBig=gGeoManager->MakeBox ("Hfr1perUpBig",ch4,1389*mm/2,35*mm/2,10*mm/2);
157 TGeoVolume *fr1perUpSma=gGeoManager->MakeBox ("Hfr1perUpSma",ch4,35*mm/2,(1385-37-2*35)*mm/2,10*mm/2);
158 TGeoVolume *fr1perDowBig=gGeoManager->MakeBox ("Hfr1perDowBig",ch4,1389*mm/2,46*mm/2,2.3*mm/2);
159 TGeoVolume *fr1perDowSma=gGeoManager->MakeBox ("Hfr1perDowSma",ch4,46*mm/2,(1385-37-2*46)*mm/2,2.3*mm/2);
160
161 TGeoVolume *ppf=gGeoManager->MakeBox ("Hppf",al , 648*mm/2 , 411.00*mm/2 , 38.3*mm/2);//2001P2
162 TGeoVolume *lar=gGeoManager->MakeBox ("Hlar",ar , 181*mm/2 , 89.25*mm/2 , 38.3*mm/2);//2001P2
163 TGeoVolume *smo=gGeoManager->MakeBox ("Hsmo",ar , 114*mm/2 , 89.25*mm/2 , 38.3*mm/2);//2001P2
164
165
8f16e0db 166// ^ Y z= z=-12mm z=98.25mm ALIC->7xHmp (virtual)-->1xHsbo (virtual) --->2xHcov (real) 2072P1
167// | ____________________________________ | |-->1xHhon (real) 2072P1
168// | | ______ ____ ______ | |
169// | | | | | * | | | |->3xHrad (virtual) --->1xHneo (real) 2011P1
170// | |50.5mm| |24mm| * |45.5mm| | | |-->1xHwin (real) 2011P1
171// | | | | | * | | | | |-->2xHsi1 (real) 2011P1
172// | | | |____| * |______| | | |-->2xHsi2 (real) 2011P1
173// | | | ____ * ______ | | |->30xHspa (real) 2011P1
174// | | | | | * | | | |
175// | | | | | * | | | |->1xHfr4 (vitual) --->1xHf4a (real)---->1xHf4i(virtual) 2043P1
176// | | sb | | rad| * | | | | |-->322xHcol (real) 2043P1
177// | | | |____| * |______| | |
78bc9cb2 178// | | | ____ * ______ | |->1xHfr1 (real) --> 6xHppf(real) ---->8xHlar (virtual) 2001P1
179// | | | | | * | | | | |--->8xHsmo (virtual) 2001P1
8f16e0db 180// | | | | | * | | | |
78bc9cb2 181// | | | | | * | | | |-> 6xHgap (virtual) --->48xHrow (virtual) -->80xHcel (virtual) -->4xHcat (real) from p84 TDR
8f16e0db 182// | |______| |____| * |______| | |-->2xHano (real) from p84 TDR
183// |____________________________________| |-->1xHpad (real) from p84 TDR
184// --->Z
185 hmp->AddNode(sbo ,1,new TGeoTranslation( 0*mm, 0*mm, -73.75*mm)); //p.84 TDR
186 sbo->AddNode(hon ,1,new TGeoTranslation( 0*mm,0*mm, 0*mm)); //2072P1
187 sbo->AddNode(cov ,1,new TGeoTranslation( 0*mm,0*mm, +25*mm));
188 sbo->AddNode(cov ,2,new TGeoTranslation( 0*mm,0*mm, -25*mm));
189 hmp->AddNode(rad,2,new TGeoTranslation( 0*mm,+434*mm, -12.00*mm));
190 hmp->AddNode(rad,1,new TGeoTranslation( 0*mm, 0*mm, -12.00*mm));
191 hmp->AddNode(rad,0,new TGeoTranslation( 0*mm,-434*mm, -12.00*mm));
192 rad->AddNode(neo,1,new TGeoTranslation( 0*mm, 0*mm, -10.0*mm));
193 rad->AddNode(win,1,new TGeoTranslation( 0*mm, 0*mm, 9.5*mm));
194 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));
195 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));
196 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));
197 hmp->AddNode(fr4,1,new TGeoTranslation( 0*mm, 0*mm, 9.00*mm)); //p.84 TDR
198 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
199 fr4->AddNode(f4a,1,new TGeoTranslation( 0*mm,0*mm, 2.5*mm));
200 f4a->AddNode(f4i,1,new TGeoTranslation( 0*mm,0*mm, 0*mm));
78bc9cb2 201 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));
202 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));
203 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));
204 sec->AddNode(gap,1,new TGeoTranslation(0,0,0.*mm));
8f16e0db 205 TGeoVolume *row= gap->Divide("Hrow",2,48,0,0);//along Y->48 rows
206 TGeoVolume *cel= row->Divide("Hcel",1,80,0,0);//along X->80 cells
207 cel->AddNode(cat,1,new TGeoCombiTrans (0, 3.15*mm , -2.70*mm , rot)); //4 cathode wires
208 cel->AddNode(ano,1,new TGeoCombiTrans (0, 2.00*mm , -0.29*mm , rot)); //2 anod wires
209 cel->AddNode(cat,2,new TGeoCombiTrans (0, 1.05*mm , -2.70*mm , rot));
210 cel->AddNode(cat,3,new TGeoCombiTrans (0, -1.05*mm , -2.70*mm , rot));
211 cel->AddNode(ano,2,new TGeoCombiTrans (0, -2.00*mm , -0.29*mm , rot));
212 cel->AddNode(cat,4,new TGeoCombiTrans (0, -3.15*mm , -2.70*mm , rot));
213 cel->AddNode(pad,1,new TGeoTranslation(0, 0.00*mm , 2.25*mm)); //1 pad
78bc9cb2 214
215 hmp->AddNode(fr1,1,new TGeoTranslation(0.,0.,(80.+1.7)*mm+58.3*mm/2.));
216 fr1->AddNode(fr1up,1,new TGeoTranslation(0.,0.,(58.3*mm-20.00*mm)/2.));
217
218 fr1->AddNode(fr1perUpBig,0,new TGeoTranslation(0.,(1385-37-35)*mm/2.,(58.3*mm-20.00*2*mm-10.0*mm)/2.));
219 fr1->AddNode(fr1perUpSma,0,new TGeoTranslation((1426-37-35)*mm/2.,0.,(58.3*mm-20.00*2*mm-10.0*mm)/2.));
220 fr1->AddNode(fr1perUpBig,1,new TGeoTranslation(0.,-(1385-37-35)*mm/2.,(58.3*mm-20.00*2*mm-10.0*mm)/2.));
221 fr1->AddNode(fr1perUpSma,1,new TGeoTranslation(-(1426-37-35)*mm/2.,0.,(58.3*mm-20.00*2*mm-10.0*mm)/2.));
222
223 fr1->AddNode(fr1perDowBig,0,new TGeoTranslation(0.,(1385-37-46)*mm/2.,(-58.3*mm+2.3*mm)/2.));
224 fr1->AddNode(fr1perDowSma,0,new TGeoTranslation((1426-37-46)*mm/2.,0.,(-58.3*mm+2.3*mm)/2.));
225 fr1->AddNode(fr1perDowBig,1,new TGeoTranslation(0.,-(1385-37-46)*mm/2.,(-58.3*mm+2.3*mm)/2.));
226 fr1->AddNode(fr1perDowSma,1,new TGeoTranslation(-(1426-37-46)*mm/2.,0.,(-58.3*mm+2.3*mm)/2.));
227
228
229 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.));
230 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.));
231 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.));
232
233
234
235
236
237
8f16e0db 238// ^ Y single cell 5.5mm CH4 = 1*mm CsI + 4.45*mm CsI x cath +0.05*mm safety margin
239// | ______________________________
240// | | | ^ ||
241// | | 1.05mm ||
242// 2.2*mm| xxxxxxxxxxxxxxxxxxxxxxxxxxxx |-- 50um x || cat shift x=0mm , y= 3.15mm , z=-2.70mm
243// | | ||
244// | | ||
245// __ | .......................... | 2.1mm 20un . || ano shift x=0mm , y= 2.00mm , z=-0.29mm
246// | | ||
247// | | ||
248// | xxxxxxxxxxxxxxxxxxxxxxxxxxxx |-- x || cat shift x=0mm , y= 1.05mm , z=-2.70mm
249// | | ||
250// | | 8.4mm ||
251// 4*mm | | 2.1mm || pad shift x=0mm , y= 0.00mm , z=2.25*mm
252// | | ||
253// | | ||
254// | xxxxxxxxxxxxxxxxxxxxxxxxxxxx |-- x || cat shift x=0mm , y=-1.05mm , z=-2.70mm
255// | | ||
256// | | ||
257// __ | .......................... | 2.1mm . 2.04mm|| ano shift x=0mm , y=-2.00mm , z=-0.29mm
258// | | ||
259// | | ||
260// | xxxxxxxxxxxxxxxxxxxxxxxxxxxx |-- x 4.45mm || cat shift x=0mm , y=-3.15mm , z=-2.70mm
261// 2.2*mm| | ||
262// | | 1.05mm ||
263// |______________________________| v ||
264// < 8 mm >
265// ----->X ----->Z
78bc9cb2 266 ppf->AddNode(lar,0,new TGeoTranslation(-224.5*mm,-151.875*mm, 0.*mm));
267 ppf->AddNode(lar,1,new TGeoTranslation(-224.5*mm,- 50.625*mm, 0.*mm));
268 ppf->AddNode(lar,2,new TGeoTranslation(-224.5*mm,+ 50.625*mm, 0.*mm));
269 ppf->AddNode(lar,3,new TGeoTranslation(-224.5*mm,+151.875*mm, 0.*mm));
270 ppf->AddNode(lar,4,new TGeoTranslation(+224.5*mm,-151.875*mm, 0.*mm));
271 ppf->AddNode(lar,5,new TGeoTranslation(+224.5*mm,- 50.625*mm, 0.*mm));
272 ppf->AddNode(lar,6,new TGeoTranslation(+224.5*mm,+ 50.625*mm, 0.*mm));
273 ppf->AddNode(lar,7,new TGeoTranslation(+224.5*mm,+151.875*mm, 0.*mm));
274 ppf->AddNode(smo,0,new TGeoTranslation(- 65.0*mm,-151.875*mm, 0.*mm));
275 ppf->AddNode(smo,1,new TGeoTranslation(- 65.0*mm,- 50.625*mm, 0.*mm));
276 ppf->AddNode(smo,2,new TGeoTranslation(- 65.0*mm,+ 50.625*mm, 0.*mm));
277 ppf->AddNode(smo,3,new TGeoTranslation(- 65.0*mm,+151.875*mm, 0.*mm));
278 ppf->AddNode(smo,4,new TGeoTranslation(+ 65.0*mm,-151.875*mm, 0.*mm));
279 ppf->AddNode(smo,5,new TGeoTranslation(+ 65.0*mm,- 50.625*mm, 0.*mm));
280 ppf->AddNode(smo,6,new TGeoTranslation(+ 65.0*mm,+ 50.625*mm, 0.*mm));
281 ppf->AddNode(smo,7,new TGeoTranslation(+ 65.0*mm,+151.875*mm, 0.*mm));
8f16e0db 282
283
284
285 AliDebug(1,"Stop v2. HMPID option");
286}//CreateGeometry()
287//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
288void AliHMPIDv2::Init()
289{
290// This methode defines ID for sensitive volumes, i.e. such geometry volumes for which there are if(gMC->CurrentVolID()==XXX) statements in StepManager()
291// Arguments: none
292// Returns: none
293 AliDebug(1,"Start v2 HMPID.");
294 fIdPad = gMC->VolId("Hpad");
295 fIdCell = gMC->VolId("Hcel");
296 AliDebug(1,"Stop v2 HMPID.");
297}
298//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
299void AliHMPIDv2::DefineOpticalProperties()
300{
301// Optical properties definition.
302 const Int_t kNbins=30; //number of photon energy points
303 Float_t emin=5.5,emax=8.5; //Photon energy range,[eV]
304 Float_t aEckov [kNbins];
305 Float_t aAbsRad[kNbins], aAbsWin[kNbins], aAbsGap[kNbins], aAbsMet[kNbins];
306 Float_t aIdxRad[kNbins], aIdxWin[kNbins], aIdxGap[kNbins], aIdxMet[kNbins], aIdxPc[kNbins];
307 Float_t aQeAll [kNbins], aQePc [kNbins];
308
309 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
310 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
311 TF1 *pGaIF=new TF1("HidxGap","1+0.12489e-6/(2.62e-4 - x*x/1239.84/1239.84)" ,emin,emax); //?????? from where
312
313 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
314 pRaAF->SetParameters(3.20491e16,-0.00917890,0.742402,3035.37,4.81171,0.626309);
315 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
316 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
317
318 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
319
320 for(Int_t i=0;i<kNbins;i++){
321 Float_t eV=emin+0.1*i; //Ckov energy in eV
322 aEckov [i] =1e-9*eV; //Ckov energy in GeV
323 aAbsRad[i]=pRaAF->Eval(eV); aIdxRad[i]=1.292;//pRaIF->Eval(eV,20); //Simulation for 20 degress C
324 aAbsWin[i]=pWiAF->Eval(eV); aIdxWin[i]=1.5787;//pWiIF->Eval(eV);
325 aAbsGap[i]=pGaAF->Eval(eV); aIdxGap[i]=1.0005;//pGaIF->Eval(eV);
326 aQeAll[i] =1; //QE for all other materials except for PC must be 1.
327 aAbsMet[i] =0.0001; aIdxMet[i]=0; //metal ref idx must be 0 in order to reflect photon
328 aIdxPc [i]=1; aQePc [i]=pQeF->Eval(eV); //PC ref idx must be 1 in order to apply photon to QE conversion
329
330 }
331 gMC->SetCerenkov((*fIdtmed)[kC6F14] , kNbins, aEckov, aAbsRad , aQeAll , aIdxRad );
332 gMC->SetCerenkov((*fIdtmed)[kSiO2] , kNbins, aEckov, aAbsWin , aQeAll , aIdxWin );
333 gMC->SetCerenkov((*fIdtmed)[kCH4] , kNbins, aEckov, aAbsGap , aQeAll , aIdxGap );
334 gMC->SetCerenkov((*fIdtmed)[kCu] , kNbins, aEckov, aAbsMet , aQeAll , aIdxMet );
335 gMC->SetCerenkov((*fIdtmed)[kW] , kNbins, aEckov, aAbsMet , aQeAll , aIdxMet ); //n=0 means reflect photons
336 gMC->SetCerenkov((*fIdtmed)[kCsI] , kNbins, aEckov, aAbsMet , aQePc , aIdxPc ); //n=1 means convert photons
337 gMC->SetCerenkov((*fIdtmed)[kAl] , kNbins, aEckov, aAbsMet , aQeAll , aIdxMet );
338 delete pRaAF;delete pWiAF;delete pGaAF; delete pRaIF; delete pWiIF; delete pGaIF; delete pQeF;
339}
340//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
341Bool_t AliHMPIDv2::IsLostByFresnel()
342{
343// Calculate probability for the photon to be lost by Fresnel reflection.
344 TLorentzVector p4;
345 Double_t mom[3],localMom[3];
346 gMC->TrackMomentum(p4); mom[0]=p4(1); mom[1]=p4(2); mom[2]=p4(3);
347 localMom[0]=0; localMom[1]=0; localMom[2]=0;
348 gMC->Gmtod(mom,localMom,2);
349 Double_t localTc = localMom[0]*localMom[0]+localMom[2]*localMom[2];
350 Double_t localTheta = TMath::ATan2(TMath::Sqrt(localTc),localMom[1]);
351 Double_t cotheta = TMath::Abs(TMath::Cos(localTheta));
352 if(gMC->GetRandom()->Rndm() < Fresnel(p4.E()*1e9,cotheta,1)){
353 AliDebug(1,"Photon lost");
354 return kTRUE;
355 }else
356 return kFALSE;
357}//IsLostByFresnel()
358//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
359void AliHMPIDv2::GenFee(Float_t qtot)
360{
361// Generate FeedBack photons for the current particle. To be invoked from StepManager().
362// eloss=0 means photon so only pulse height distribution is to be analysed.
363 TLorentzVector x4;
364 gMC->TrackPosition(x4);
365 Int_t iNphotons=gMC->GetRandom()->Poisson(0.02*qtot); //# of feedback photons is proportional to the charge of hit
366 AliDebug(1,Form("N photons=%i",iNphotons));
367 Int_t j;
368 Float_t cthf, phif, enfp = 0, sthf, e1[3], e2[3], e3[3], vmod, uswop,dir[3], phi,pol[3], mom[4];
369//Generate photons
370 for(Int_t i=0;i<iNphotons;i++){//feedbacks loop
371 Double_t ranf[2];
372 gMC->GetRandom()->RndmArray(2,ranf); //Sample direction
373 cthf=ranf[0]*2-1.0;
374 if(cthf<0) continue;
375 sthf = TMath::Sqrt((1 - cthf) * (1 + cthf));
376 phif = ranf[1] * 2 * TMath::Pi();
377
378 if(Double_t randomNumber=gMC->GetRandom()->Rndm()<=0.57)
379 enfp = 7.5e-9;
380 else if(randomNumber<=0.7)
381 enfp = 6.4e-9;
382 else
383 enfp = 7.9e-9;
384
385
386 dir[0] = sthf * TMath::Sin(phif); dir[1] = cthf; dir[2] = sthf * TMath::Cos(phif);
387 gMC->Gdtom(dir, mom, 2);
388 mom[0]*=enfp; mom[1]*=enfp; mom[2]*=enfp;
389 mom[3] = TMath::Sqrt(mom[0]*mom[0]+mom[1]*mom[1]+mom[2]*mom[2]);
390
391 // Polarisation
392 e1[0]= 0; e1[1]=-dir[2]; e1[2]= dir[1];
393 e2[0]=-dir[1]; e2[1]= dir[0]; e2[2]= 0;
394 e3[0]= dir[1]; e3[1]= 0; e3[2]=-dir[0];
395
396 vmod=0;
397 for(j=0;j<3;j++) vmod+=e1[j]*e1[j];
398 if (!vmod) for(j=0;j<3;j++) {
399 uswop=e1[j];
400 e1[j]=e3[j];
401 e3[j]=uswop;
402 }
403 vmod=0;
404 for(j=0;j<3;j++) vmod+=e2[j]*e2[j];
405 if (!vmod) for(j=0;j<3;j++) {
406 uswop=e2[j];
407 e2[j]=e3[j];
408 e3[j]=uswop;
409 }
410
411 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;
412 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;
413
414 phi = gMC->GetRandom()->Rndm()* 2 * TMath::Pi();
415 for(j=0;j<3;j++) pol[j]=e1[j]*TMath::Sin(phi)+e2[j]*TMath::Cos(phi);
416 gMC->Gdtom(pol, pol, 2);
417 Int_t outputNtracksStored;
418 gAlice->GetMCApp()->PushTrack(1, //transport
419 gAlice->GetMCApp()->GetCurrentTrackNumber(),//parent track
420 50000051, //PID
421 mom[0],mom[1],mom[2],mom[3], //track momentum
422 x4.X(),x4.Y(),x4.Z(),x4.T(), //track origin
423 pol[0],pol[1],pol[2], //polarization
424 kPFeedBackPhoton, //process ID
425 outputNtracksStored, //on return how many new photons stored on stack
426 1.0); //weight
427 }//feedbacks loop
428 AliDebug(1,"Stop.");
429}//GenerateFeedbacks()
430//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
431void AliHMPIDv2::Hits2SDigits()
432{
433// Interface method ivoked from AliSimulation to create a list of sdigits corresponding to list of hits. Every hit generates one or more sdigits.
434// Arguments: none
435// Returns: none
436 AliDebug(1,"Start.");
437 for(Int_t iEvt=0;iEvt < GetLoader()->GetRunLoader()->GetNumberOfEvents();iEvt++){ //events loop
438 GetLoader()->GetRunLoader()->GetEvent(iEvt); //get next event
439
440 if(!GetLoader()->TreeH()) {GetLoader()->LoadHits(); }
441 if(!GetLoader()->TreeS()) {GetLoader()->MakeTree("S"); MakeBranch("S");}//to
442
443 for(Int_t iEnt=0;iEnt<GetLoader()->TreeH()->GetEntries();iEnt++){//prims loop
444 GetLoader()->TreeH()->GetEntry(iEnt);
445 Hit2Sdi(Hits(),SdiLst());
446 }//prims loop
447 GetLoader()->TreeS()->Fill();
448 GetLoader()->WriteSDigits("OVERWRITE");
449 SdiReset();
450 }//events loop
451 GetLoader()->UnloadHits();
452 GetLoader()->UnloadSDigits();
453 AliDebug(1,"Stop.");
454}//Hits2SDigits()
455//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
456void AliHMPIDv2::Hit2Sdi(TClonesArray *pHitLst,TClonesArray *pSdiLst)
457{
458// Converts list of hits to list of sdigits.
459// Arguments: pHitLst - list of hits provided not empty
460// pSDigLst - list of sdigits where to store the results
461// Returns: none
462 for(Int_t iHit=0;iHit<pHitLst->GetEntries();iHit++){ //hits loop
463 AliHMPIDHit *pHit=(AliHMPIDHit*)pHitLst->At(iHit); //get pointer to current hit
464 pHit->Hit2Sdi(pSdiLst); //convert this hit to list of sdigits
465 }//hits loop loop
466}//Hits2Sdi()
467//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
468void AliHMPIDv2::Digits2Raw()
469{
470// Interface method invoked by AliSimulation to create raw data streams from digits. Events loop is done in AliSimulation
471// Arguments: none
472// Returns: none
473 AliDebug(1,"Start.");
474 GetLoader()->LoadDigits();
475 TTree * treeD = GetLoader()->TreeD();
476 if(!treeD) {
477 AliError("No digits tree!");
478 return;
479 }
480 treeD->GetEntry(0);
481
482 AliHMPIDDigit::WriteRaw(DigLst());
483
484 GetLoader()->UnloadDigits();
485 AliDebug(1,"Stop.");
486}//Digits2Raw()
487//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
488Float_t AliHMPIDv2::Fresnel(Float_t ene,Float_t pdoti, Bool_t pola)
489{
490// Correction for Fresnel ???????????
491// Arguments: ene - photon energy [GeV],
492// PDOTI=COS(INC.ANG.), PDOTR=COS(POL.PLANE ROT.ANG.)
493// Returns:
494 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,
495 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,
496 7.8,7.9,8.0,8.1,8.2,8.3,8.4,8.5};
497 Float_t csin[36] = {2.14,2.21,2.33,2.48,2.76,2.97,2.99,2.59,2.81,3.05,
498 2.86,2.53,2.55,2.66,2.79,2.96,3.18,3.05,2.84,2.81,2.38,2.11,
499 2.01,2.13,2.39,2.73,3.08,3.15,2.95,2.73,2.56,2.41,2.12,1.95,
500 1.72,1.53};
501 Float_t csik[36] = {0.,0.,0.,0.,0.,0.196,0.408,0.208,0.118,0.49,0.784,0.543,
502 0.424,0.404,0.371,0.514,0.922,1.102,1.139,1.376,1.461,1.253,0.878,
503 0.69,0.612,0.649,0.824,1.347,1.571,1.678,1.763,1.857,1.824,1.824,
504 1.714,1.498};
505 Float_t xe=ene;
506 Int_t j=Int_t(xe*10)-49;
507 Float_t cn=csin[j]+((csin[j+1]-csin[j])/0.1)*(xe-en[j]);
508 Float_t ck=csik[j]+((csik[j+1]-csik[j])/0.1)*(xe-en[j]);
509
510 //FORMULAE FROM HANDBOOK OF OPTICS, 33.23 OR
511 //W.R. HUNTER, J.O.S.A. 54 (1964),15 , J.O.S.A. 55(1965),1197
512
513 Float_t sinin=TMath::Sqrt(1-pdoti*pdoti);
514 Float_t tanin=sinin/pdoti;
515
516 Float_t c1=cn*cn-ck*ck-sinin*sinin;
517 Float_t c2=4*cn*cn*ck*ck;
518 Float_t aO=TMath::Sqrt(0.5*(TMath::Sqrt(c1*c1+c2)+c1));
519 Float_t b2=0.5*(TMath::Sqrt(c1*c1+c2)-c1);
520
521 Float_t rs=((aO-pdoti)*(aO-pdoti)+b2)/((aO+pdoti)*(aO+pdoti)+b2);
522 Float_t rp=rs*((aO-sinin*tanin)*(aO-sinin*tanin)+b2)/((aO+sinin*tanin)*(aO+sinin*tanin)+b2);
523
524
525 //CORRECTION FACTOR FOR SURFACE ROUGHNESS
526 //B.J. STAGG APPLIED OPTICS, 30(1991),4113
527
528 Float_t sigraf=18.;
529 Float_t lamb=1240/ene;
530 Float_t fresn;
531
532 Float_t rO=TMath::Exp(-(4*TMath::Pi()*pdoti*sigraf/lamb)*(4*TMath::Pi()*pdoti*sigraf/lamb));
533
534 if(pola)
535 {
536 Float_t pdotr=0.8; //DEGREE OF POLARIZATION : 1->P , -1->S
537 fresn=0.5*(rp*(1+pdotr)+rs*(1-pdotr));
538 }
539 else
540 fresn=0.5*(rp+rs);