摘要
对基于ＮａＩ（Ｔｌ）探测器的铀丰度测量原型仪器进行了改进。改进后的仪器可以运用计算机进行在线数据获取。利用标准燃料棒对仪器进行了刻度实验，运用刻度结果对大亚湾核电厂的燃料棒进行了测量，丰度测量值与标称值在－１．０％—２．８％以内符合。
A prototype 235 U enrichment meter based on NaI(Tl) γ spectroscopy is improved and it works under the principle of that the enrichment of 235 U is proportional to the radioactivity of 185 keV γ ray when the sample is thick infinitely. The data of radioactivity from 235 U can be collected by a notebook computer and the interface control software is written using C++ language. The meter was tested and calibrated using standard fuel rods in fuel fabrication plant. For single fuel rod, the measured value of 235 U enrichment is agreeable with declared value within-1 0 %—2 8 %.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
1998年第3期208-213,共6页
Atomic Energy Science and Technology
