1 | // |
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2 | // $Id: TestOpticalAdaptor.cc 2835 2009-07-16 03:22:42Z biktem $ |
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3 | // |
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4 | #include "TRotation.h" |
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5 | #include "TestOpticalAdaptor.hh" |
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6 | #include "OpticsFactory.hh" |
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7 | #include "Photomultiplier.hh" |
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8 | #include "EEvent.hh" |
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9 | #include "EConst.hh" |
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10 | |
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11 | using namespace sou; |
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12 | using namespace TMath; |
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13 | using namespace EConst; |
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14 | |
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15 | //#define DEBUG |
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16 | |
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17 | ClassImp(TestOpticalAdaptor) |
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18 | |
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19 | //______________________________________________________________________________ |
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20 | TestOpticalAdaptor::TestOpticalAdaptor() { |
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21 | // |
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22 | // Contructor |
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23 | // |
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24 | |
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25 | fReflectivity = Conf()->GetNum("TestOpticalAdaptor.fCathode.reflectivity"); |
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26 | |
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27 | fSide=Conf()->GetNum("TestOpticalAdaptor.fSide")*mm; |
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28 | fHeight=Conf()->GetNum("TestOpticalAdaptor.fHeight")*mm; |
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29 | |
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30 | } |
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31 | |
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32 | //______________________________________________________________________________ |
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33 | Photon *TestOpticalAdaptor::Transport(Photon *p) const { |
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34 | vector<EVector> ips=intPoints(p); |
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35 | |
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36 | // find the hit position |
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37 | int hitFace; |
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38 | for(hitFace=0; hitFace<6; hitFace++) |
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39 | if(isInside(ips[hitFace], hitFace)) break; |
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40 | if(hitFace==6) {//throw runtime_error("TestOpticalAdaptor: shouldn't happen. no face hit"); |
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41 | cerr<<"warning: photon on OpticalAdaptor edge. Killed"<<endl; |
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42 | return 0; |
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43 | } |
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44 | |
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45 | #ifdef DEBUG |
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46 | cout<<"hit face: "<<hitFace<<endl; |
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47 | cout<<"hit position (local): "<<ips[hitFace]<<endl; |
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48 | #endif /* DEBUG */ |
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49 | |
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50 | EVector dummy=p->pos; // previous photon position |
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51 | p->pos=goGlobal(ips[hitFace]); |
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52 | p->pos+=fPos; // new photon position |
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53 | p->time+=(p->pos-dummy).Mag()/Clight(); |
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54 | |
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55 | #ifdef DEBUG |
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56 | cout<<"hit position (global): "<<p->pos<<endl; |
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57 | #endif /* DEBUG */ |
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58 | |
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59 | if(hitFace==BOTTOM) { |
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60 | // Cathode reflectivity |
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61 | if(isReflectedByCathode()) { |
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62 | EVector ldir=goLocal(p->dir); |
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63 | ldir[Z] *= -1; |
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64 | p->dir=goGlobal(ldir); |
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65 | p->MChit=false; |
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66 | p->hit=false; |
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67 | return Transport(p); |
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68 | } |
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69 | |
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70 | // Add photon to PMT |
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71 | if(!pmt->Pmt()->Add(*p)) { |
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72 | #ifdef DEBUG |
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73 | cout<<"photon rejected by PMT"<<endl; |
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74 | #endif /* DEBUG */ |
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75 | } else { |
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76 | #ifdef DEBUG |
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77 | cout<<"photon accepted by PMT"<<endl; |
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78 | #endif /* DEBUG */ |
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79 | } |
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80 | |
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81 | return 0; |
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82 | } |
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83 | |
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84 | if(hitFace==TOP) return p; |
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85 | #ifdef DEBUG |
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86 | cout<<"photon hit on OA side"<<endl; |
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87 | #endif /* DEBUG */ |
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88 | |
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89 | const PmtGeometry *nearest=pmt->Nearest((OAFace)hitFace); |
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90 | if(!nearest) { |
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91 | // photon hit on PMT wall |
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92 | #ifdef DEBUG |
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93 | cout<<"photon destroyed, no nearest"<<endl; |
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94 | #endif /* DEBUG */ |
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95 | // photon absorbed |
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96 | return 0; |
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97 | } |
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98 | #ifdef DEBUG |
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99 | cout<<"cur_PMT_Id: "<<pmt->Pmt()->Id()<<endl; |
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100 | cout<<"near_PMT_Id: "<<nearest->Pmt()->Id()<<endl; |
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101 | #endif |
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102 | OpticalAdaptor *oa=nearest->GetOA(); |
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103 | // photon doesn't need to be propagated from one OA side to the |
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104 | // other one because unlike PMTs they are stuck together |
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105 | p=oa->Transport(p); |
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106 | delete oa; |
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107 | |
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108 | return p; |
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109 | } |
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110 | |
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