1 | // %%%%%%%%%%%%% |
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2 | // gemc headers |
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3 | // %%%%%%%%%%%%% |
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4 | #include "DC_hitprocess.h" |
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5 | #include "CLHEP/Random/RandGaussT.h" |
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6 | |
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7 | PH_output DC_HitProcess :: ProcessHit(MHit* aHit, gemc_opts Opt) |
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8 | { |
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9 | string hd_msg = Opt.args["LOG_MSG"].args + " DC Hit Process " ; |
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10 | double HIT_VERBOSITY = Opt.args["HIT_VERBOSITY"].arg; |
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11 | |
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12 | PH_output out; |
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13 | out.identity = aHit->GetId(); |
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14 | |
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15 | HCname = "DC Hit Process"; |
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16 | // %%%%%%%%%%%%%%%%%%% |
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17 | // Raw hit information |
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18 | // %%%%%%%%%%%%%%%%%%% |
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19 | int nsteps = aHit->GetPos().size(); |
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20 | |
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21 | |
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22 | |
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23 | // Identifying the fastest track in the hit |
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24 | int trackId = -1; |
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25 | double minTime = 10000; |
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26 | vector<int> stepTrackId = aHit->GetTrackId(); |
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27 | vector<double> stepTime = aHit->GetTime(); |
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28 | vector<G4double> Edep = aHit->GetEdep(); |
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29 | |
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30 | for(int s=0; s<nsteps; s++) |
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31 | { |
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32 | if(stepTrackId[s] != trackId && stepTime[s]/ns < minTime && Edep[s] >= aHit->GetThreshold()) |
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33 | trackId = stepTrackId[s]; |
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34 | } |
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35 | |
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36 | // If no step pass the threshold, getting the fastest track |
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37 | if(trackId == -1) |
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38 | { |
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39 | for(int s=0; s<nsteps; s++) |
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40 | { |
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41 | if(stepTrackId[s] != trackId && stepTime[s]/ns < minTime) |
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42 | trackId = stepTrackId[s]; |
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43 | } |
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44 | } |
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45 | |
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46 | // Get Total Energy deposited of the fastest track |
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47 | double Etot = 0; |
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48 | int count_track_steps = 0; |
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49 | for(int s=0; s<nsteps; s++) |
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50 | if(stepTrackId[s] == trackId) |
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51 | { |
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52 | Etot = Etot + Edep[s]; |
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53 | count_track_steps++; |
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54 | } |
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55 | |
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56 | |
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57 | // average global, local positions of fastest track |
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58 | double x, y, z; |
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59 | double lx, ly, lz; |
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60 | x = y = z = lx = ly = lz = 0; |
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61 | vector<G4ThreeVector> pos = aHit->GetPos(); |
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62 | vector<G4ThreeVector> Lpos = aHit->GetLPos(); |
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63 | |
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64 | /* if(Etot>0)*/ |
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65 | for(int s=0; s<nsteps; s++) |
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66 | { |
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67 | if(stepTrackId[s] == trackId) |
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68 | { |
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69 | /* x = x + pos[s].x()*Edep[s]/Etot; |
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70 | y = y + pos[s].y()*Edep[s]/Etot; |
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71 | z = z + pos[s].z()*Edep[s]/Etot; |
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72 | lx = lx + Lpos[s].x()*Edep[s]/Etot; |
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73 | ly = ly + Lpos[s].y()*Edep[s]/Etot; |
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74 | lz = lz + Lpos[s].z()*Edep[s]/Etot;*/ |
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75 | x = x + pos[s].x()/count_track_steps; |
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76 | y = y + pos[s].y()/count_track_steps; |
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77 | z = z + pos[s].z()/count_track_steps; |
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78 | lx = lx + Lpos[s].x()/count_track_steps; |
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79 | ly = ly + Lpos[s].y()/count_track_steps; |
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80 | lz = lz + Lpos[s].z()/count_track_steps; |
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81 | } |
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82 | } |
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83 | // else |
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84 | // { |
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85 | // x = pos[0].x(); |
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86 | // y = pos[0].y(); |
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87 | // z = pos[0].z(); |
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88 | // lx = Lpos[0].x(); |
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89 | // ly = Lpos[0].y(); |
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90 | // lz = Lpos[0].z(); |
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91 | // } |
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92 | |
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93 | // average time of fastest track |
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94 | double time = 0; |
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95 | vector<G4double> times = aHit->GetTime(); |
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96 | for(int s=0; s<nsteps; s++) if(stepTrackId[s] == trackId) time = time + times[s]/nsteps; |
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97 | |
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98 | // Energy of the track |
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99 | double Ene = aHit->GetE(); |
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100 | |
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101 | out.raws.push_back(Etot); |
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102 | out.raws.push_back(x); |
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103 | out.raws.push_back(y); |
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104 | out.raws.push_back(z); |
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105 | out.raws.push_back(lx); |
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106 | out.raws.push_back(ly); |
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107 | out.raws.push_back(lz); |
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108 | out.raws.push_back(time); |
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109 | out.raws.push_back((double) aHit->GetPID()); |
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110 | out.raws.push_back(aHit->GetVert().getX()); |
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111 | out.raws.push_back(aHit->GetVert().getY()); |
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112 | out.raws.push_back(aHit->GetVert().getZ()); |
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113 | out.raws.push_back(Ene); |
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114 | out.raws.push_back((double) aHit->GetmPID()); |
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115 | out.raws.push_back(aHit->GetmVert().getX()); |
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116 | out.raws.push_back(aHit->GetmVert().getY()); |
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117 | out.raws.push_back(aHit->GetmVert().getZ()); |
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118 | |
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119 | |
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120 | |
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121 | // %%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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122 | // Distance 1: smear by 300 um |
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123 | // Drift Time 1: using 50 um/ns |
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124 | // %%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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125 | |
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126 | // Finding Wire position |
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127 | double NWIRES = 112; |
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128 | double ylength = aHit->GetDetector().dimensions[3]; |
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129 | double deltay = 2.0*ylength/NWIRES; |
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130 | vector<identifier> iden = aHit->GetId(); |
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131 | int nwire = iden[3].id; |
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132 | double WIRE_Y = nwire*deltay; |
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133 | |
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134 | // Finding DOCA |
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135 | double doca = 10000; |
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136 | double LR = 0; |
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137 | |
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138 | for(int s=0; s<nsteps; s++) |
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139 | { |
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140 | G4ThreeVector DOCA(0, Lpos[s].y() + ylength - WIRE_Y, Lpos[s].z()); |
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141 | if(DOCA.mag() <= doca && stepTrackId[s] == trackId ) |
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142 | { |
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143 | doca = DOCA.mag(); |
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144 | if(DOCA.y() >=0 ) LR = 1; |
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145 | else LR = -1; |
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146 | |
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147 | } |
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148 | } |
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149 | // if(aHit->GetPID() == 2112) |
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150 | // cout << " wire=" << nwire << " layer=" << iden[2].id |
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151 | // << " doca=" << doca << " nsteps=" << count_track_steps << endl; |
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152 | |
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153 | |
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154 | |
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155 | |
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156 | // %%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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157 | // Digitization |
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158 | // DC ID: |
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159 | // sector, SL, Layer, Wire |
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160 | // %%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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161 | int sector = out.identity[0].id; |
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162 | int SL = out.identity[1].id; |
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163 | int Layer = out.identity[2].id; |
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164 | int Wire = out.identity[3].id; |
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165 | |
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166 | double drift_velocity = 0; |
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167 | if(SL == 1 || SL == 2) drift_velocity = 0.053; |
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168 | if(SL == 3 || SL == 4) drift_velocity = 0.026; |
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169 | if(SL == 5 || SL == 6) drift_velocity = 0.036; |
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170 | |
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171 | double sdoca = -1; |
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172 | while(sdoca < 0) sdoca = CLHEP::RandGauss::shoot(doca, 0.3); |
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173 | double time1 = doca/drift_velocity; |
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174 | double stime1 = sdoca/drift_velocity; |
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175 | |
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176 | out.raws.push_back(LR); |
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177 | out.raws.push_back(doca); |
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178 | out.raws.push_back(sdoca); |
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179 | out.raws.push_back(time1); |
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180 | out.raws.push_back(stime1); |
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181 | |
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182 | |
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183 | out.dgtz.push_back(sector); |
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184 | out.dgtz.push_back(SL); |
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185 | out.dgtz.push_back(Layer); |
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186 | out.dgtz.push_back(Wire); |
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187 | |
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188 | if(HIT_VERBOSITY>4) |
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189 | cout << hd_msg << " Sector: " << sector |
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190 | << " Superlayer: " << SL |
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191 | << " Layer: " << Layer |
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192 | << " Wire: " << Wire |
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193 | << " L/R: " << LR |
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194 | << " doca: " << doca |
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195 | << " sdoca: " << sdoca |
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196 | << " time1" << time1 |
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197 | << " stime1=" << stime1 << endl; |
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198 | |
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199 | return out; |
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200 | } |
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201 | |
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202 | vector<identifier> DC_HitProcess :: ProcessID(vector<identifier> id, G4Step* aStep, detector Detector) |
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203 | { |
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204 | double NWIRES = 112; |
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205 | |
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206 | G4StepPoint *prestep = aStep->GetPreStepPoint(); |
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207 | G4StepPoint *poststep = aStep->GetPostStepPoint(); |
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208 | G4VTouchable* TH = (G4VTouchable*) aStep->GetPreStepPoint()->GetTouchable(); |
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209 | |
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210 | string name = TH->GetVolume(0)->GetName(); |
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211 | G4ThreeVector xyz = poststep->GetPosition(); |
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212 | G4ThreeVector Lxyz = prestep->GetTouchableHandle()->GetHistory() |
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213 | ->GetTopTransform().TransformPoint(xyz); |
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214 | |
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215 | double ylength = Detector.dimensions[3]; |
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216 | double deltay = 2.0*ylength/NWIRES; |
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217 | double loc_y = Lxyz.y() + ylength; |
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218 | |
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219 | int nwire = (int) floor(loc_y/deltay); |
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220 | vector<identifier> yid = id; |
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221 | |
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222 | if(nwire > NWIRES) cout << " SuperLayer: " << yid[1].id << " layer: " << yid[2].id |
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223 | << " wire: " << nwire << " length: " << ylength |
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224 | << " ly: " << Lxyz.y() << " deltay: " << deltay |
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225 | << " loc_y: " << loc_y << " nwire*deltay: " << fabs( nwire*deltay - loc_y ) << endl; |
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226 | |
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227 | |
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228 | yid[3].id = nwire; |
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229 | |
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230 | if(fabs( (nwire+1)*deltay - loc_y ) < fabs( nwire*deltay - loc_y ) ) |
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231 | yid[3].id = nwire + 1; |
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232 | |
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233 | return yid; |
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234 | } |
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235 | |
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236 | |
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237 | |
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238 | |
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239 | |
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