球床模块式高温气冷堆在线燃耗测量系统准直器性能的MonteCarlo分析

Performance Analysis of Collimator in Online Burnup Measurement System for Pebble Modular HighTemperature GasCooled Reactor With MonteCarlo Method

摘要: 针对球床模块式高温气冷堆(HTRPM)燃耗测量系统的设计特点，利用MonteCarlo模拟方法，分析球形体源测量中不同形式的限制束流的准直器的性能及其对燃耗测量的影响。结果表明，对HTRPM在线燃耗测量，选择双锥孔准直器更为适宜。

Abstract: The paper discusses the performance of different collimators with MonteCarlo method and reveals their influence on the burnup measurement. The result shows that conical collimator is more appropriate for online burnup measurement.