强激光与粒子束2017，Vol.29Issue(3)：60-64,5.DOI:10.11884/HPLPB201729.160338
乏燃料中Pu同位素含量数值模拟
Simulating plutonium isotopic composition in spent fuel
摘要
Abstract
In the field of nuclear arms control,non-proliferation is an significant area,particularly the proliferation of weap-on usable nuclear materials,which is concerned by many countries.We used burnup calculating code MCORGS to simulate the re-lation between the burnup of spent fuel in PWR and Pu isotopic composition.We built the model of pin-cell with 20 average axial zones,calculated its axial burnup distribution,and got the axial burnup and Pu-239 isotopic mass concentration distribution in dif-ferent axial positions in PWR.Based on burnup calculation we found that Pu-239 isotopic concentrations in different axial position varied greatly.Further more,we simulated VVER1000 and PWR's 17×17 assembly.The simulation shows that the radial burn-ups in an assembly were also different.There are much different burnups in different positions of nuclear reactor,which result in many low burnup zones in spent fuel.This kind of spent fuel of LWR might brings serious nuclear proliferation to international community,and should be supervised more strictly.关键词
钚同位素/燃耗/乏燃料/轻水堆Key words
plutonium isotopic composition/burnup/spent fuel/light water reactor分类
数理科学引用本文复制引用
徐雪峰,田东风,朱剑钰,伍钧,师学明..乏燃料中Pu同位素含量数值模拟[J].强激光与粒子束,2017,29(3):60-64,5.基金项目
能源局06 专项(2015ZX06002008) （2015ZX06002008）
国防科工局国防基础科研计划资助项目(C1520110002) （C1520110002）
国家磁约束核聚变能源研究专项资助项目(2015GB108002) （2015GB108002）
