摘要
本文利用ORIGEN-ARP程序计算得到重水堆停堆后堆内γ源强,通过D(γ,n) H反应率与γ源强关系计算出重水堆停堆后光激中子源强水平变化。研究结果表明,重水堆停闭1 900 d后光激中子源强水平约为7.2×106n/s,比首次临界外加的Am-Be源强度高,物理启动无需添加外加中子源。
In this paper,ORIGEN-ARP program is used to calculate the in-core γ source intensity after shutdown of heavy water reactor,then the variation of photo neutron source intensity level after shutdown is calculated through the correlation of D(γ,n)H reaction rate and γsource intensity.The results show that the photo neutron source intensity 1900days after shutdown is about 7.2×10^6n/s,which is higher than the additional Am-Be source intensity for the first criticality,so no additional neutron source is required for physical startup.
作者
花晓
S.Djaroum
HUA Xiao;S.Djaroum(China Institute of Atomic Energy,Beijing 102413,China;Birine-Nuclear Research .Center,COMENA,Algeria)
出处
《核电子学与探测技术》
CAS
北大核心
2018年第3期410-412,共3页
Nuclear Electronics & Detection Technology
关键词
重水研究堆
光激中子
物理启动
heavy water research reactor
photoneutron
physical start-up
