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介绍基于BEPCLINAC和BFELLINAC（北京正负电子对撞机和北京自由电子激光装置电子直线加速器）慢正电子束设备中正电子源部分的Monte－Carlo模拟过程。结果表明，从Ta靶出射的快正电子产额在BEPCLINAC和BFELMNAC运行于兼容模式时分别为184×1010/s和3．9×1011/s。若慢化体慢化效率在10-4量级，基于BEPCLINAC和BFELLINAC慢正电子束的慢正电子产额分别为106－107/s和107－108/s。
The Monte-Carlo simulations based on the BEPCLINAC and BFELLINAC (Positron Collider and Beijing Free Electron Laser linear electron accelerator) slow positron electron beam source are introduced. The results show that the fast positron emission from the Ta target is 184 × 1010 / s and 3.9 × 1011 / s, respectively, when BEPCLINAC and BFELMNAC operate in compatible mode. If slow moderation moderation efficiency is on the order of 10-4, the slow positron yields based on BEPCLINAC and BFELLINAC slow positron are 106-107 / s and 107-108 / s, respectively.