压水堆核电厂乏燃料组件γ源强研究  

Assessment of the Gamma Source of Spent Fuel in Pressurized Water Reactor

作　　者：韩嵩[1] Justin Byard 黄灏[1] 石秀安[1] 

机构地区：[1]中科华核电技术研究院有限公司,广东深圳518026 [2]中珐国际核能有限总司,广东深圳518026

出　　处：《核科学与工程》2015年第2期328-332,共5页Nuclear Science and Engineering

摘　　要：本文运用ORIGEN-ARP计算研究了压水堆核电厂反应堆平衡循环的乏燃料组件的γ源强,对影响γ源强的因素,包括总燃耗、各循环燃耗比例和能群结构划分方式进行了分析。分析结果表明:乏燃料组件中,裂变产物产生的γ源强始终占主要部分。在卸料后的不同冷却时刻,γ总源强与总燃耗或末端燃耗密度存在正比关系。采用不同γ能群结构划分方式对γ总源强计算结果的影响较大。The gamma source of the spent fuel assemblies in PWR＇s equilibrium cycle was evaluated by using ORIGEN-ARP. Some factors influencing the total inventory of gamma source were analyzed, including the total assembly burnup, the proportions of cycle burnup and energy group structure specification. The analyzing results show that the gamma source is mainly contributed by the fission products release. The total gamma source inventory is proportional to the total assembly burnup or the end-up burnup density in various periods after assembly discharges. It also shows that different energy group structure specifications heavily influence the gamma source inventory.

关 键 词：乏燃料组件 γ源强 ORIGEN-ARP 

分 类 号：TL32[核科学技术—核技术及应用]