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通过分析用 GEANT产生的 1 0 0个事例样本 ,确立了判选光子所产生的 Com pton电子径迹的第一和第二顶点的一种方法。基于此方法 ,可以很好地对 L Ar- TPC中产生 Compton电子的 6 .1 3Me V光子的动量和方向完成重建。
A method of determining the first and second vertices of the Com pton electron track created by the photon was established by analyzing 100 samples generated by GEANT. Based on this method, the momentum and direction of 6.13 MeV photons generating Compton electrons in L Ar-TPC can be well reconstructed.