摘要
在反应堆中子注量测量中,活化探测器可能会经历多个燃料循环的中子辐照,不同燃料循环的中子能谱也会发生变化。考虑到中子能谱变化的影响,对某批次国产反应堆压力容器辐照材料进行中子注量测量修正。计算结果表明,探测器权重快中子注量率(E>1.0 MeV)修正后比理论中子注量率(E>1.0 MeV)高1.75%;与修正前相比降低了3.73%,中子能谱变化的影响不容忽视。
In the reactor neutron fluence measurement, the activation detectors will suffer neutron radiation in several fuel cycles, with which neutron spectrum varies. Considering this factor, for the neutron fluence measurement was corrected for one batch of irradiation material for the domestic pressure vessel. Calculations show that the relative deviation for the weighted neutron fluence (E>1.0 MeV) correction is 1.75%, reducing 3.73% compared to the uncorrected weighted neutron fluence (E>1.0 MeV), and thus the effect of spectrum variation cannot be ignored.
作者
邹鹏
操节宝
王云波
唐锡定
康长虎
杨斌
Zou Peng;Cao Jiebao;Wang Yunbo;Tang Xiding;Kang Changhu;Yang Bin(Nuclear Power Institute of China,Chengdu,610213,China)
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2019年第4期56-59,共4页
Nuclear Power Engineering
