摘要
使用标准的Ｍｏｎｔｅ－Ｃａｒｌｏ程序计算了几种闪烁中子探测器的效率曲线，同时又用￣（２５２）Ｃｆ自发裂变中子源中子对效率曲线的低能部分进行了实验刻度。通过实验值对计算值归一把刻度点与计算曲线结合起来，按照实验点的走向修正了计算效率曲线的近阈部分。文章着重叙述实验刻度的技术。
The efficiency curves of several scintillation neutron detectors are experimentally calibratedwith ￣(252)Cf spontaneous fission neutrons at the low energy range and theoretically calculated with acode NEFF4.The relative efficiency curves obtained with experimental calibrations are normali- zed and connected to the calculations. The calculated efficiency curves are corrected according tothe trends of the experimental points near the thresholds.The paper will mainly describe the tech-nique of the experimental calibrations.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
1994年第2期133-139,共7页
Atomic Energy Science and Technology
关键词
中子探测器
效率曲线
裂变中子谱
Neutron detector Efficiency curve Fission neutron spectrum
