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阐述了一种特殊的北京谱仪III(BESIII)事例起始时间计算方法的基本原理和算法结构,利用漂移室击中信息寻找径迹段,通过对径迹段做直线拟合,最后计算BESIII事例起始时间。并通过蒙特卡罗数据进行调试和检验,证明了该算法的可靠性。
This paper describes the basic principle and algorithm structure of a special method for calculating the start time of Beijing Spectrometer III (BESIII), hits the track segment by hitting information in the drift chamber, and makes a straight line fitting to the track segment to finally calculate the BESIII Instance start time. And through the Monte Carlo data debugging and testing to prove the reliability of the algorithm.