【摘要】 羊八井ARGO实验阵列探测器数目庞大,用人工方法对其定标是不现实的.本文针对整个ARGO实验阵列首次提出两种探测时间离线定标方法,即同心圆法和特征面法,并通过大气簇射模拟和ARGO实验探测器模拟对上述方法进行了检验.对特征面法还用模拟数据和小阵列实验数据对其定标精度进行了估算,并比较了定标前后事例样本方位角的分布.结果表明,同心圆法可对离阵列中心相同距离的探测器进行相对时间定标,而特征面法具有很好的定标精度且操作方便省时,可针对不同实验数据样本做相应实验条件下的探测器定标,从而有效地解决了因阵列探测器数目庞大而带来的定标工作中的困难.更多还原

【Abstract】 In the YBJ-ARGO experiment, the hit time of detector-units can’t be calibrated manually due to the massive number of detector-units. Two methods of off-line calibration, named concentric circle method and characteristic plane method, are developed. Their calibration precision is estimated using the simulation data and the data of the 50m2 RPC carpet. It shows that concentric circle method can be used to calibrate the detector-units which have the same distance from the centre of the array,while the characteristic plane method, which has a good precision, is suitable for off-line calibration of all the detector-units, especially, under different experiment conditions.更多还原