摘要
本装置的工作原理是基于堆芯中子与冷却剂中轻水或重水中的氧同位素16O1、8O核反应时,其放射性产物16N1、9O的半衰期各不相同,由于16N和19O从堆芯通过不同的泄漏点到达探测点所经历的路程不同,因此16N和19O的活度比值也随之不同,通过所测得的不同活度比,则可以反推出U形管泄漏的位置。将研制的监测装置在本院游泳池反应堆一回路水取样室进行了测量。结果表明,本装置性能良好,达到了设计的要求。
The principle idea for the monitoring system is based on the time is different when radiation nuclei ^16N and ^19O travel the different distances from reactor center via hot, bend and cold point of U-tube in steam generator. Because of the decay times T1/2 for 16N and ^19O are different , the ratios of ^16N to ^19O activities are different too . By using the different ratio, we can obtain the leak location of U-tube. The radioactivities and their ratio of ^16N to ^19O in our swimming pool reactor were measurement by use the monitoring system, the measured results show its quality is reliable.
出处
《核科学与工程》
CSCD
北大核心
2006年第2期128-133,共6页
Nuclear Science and Engineering
