压水反应堆一回路水中二次带电粒子核反应产物的比活度  

Specific Radioactivity Produced by the Secondary Charged Particle Nuclear Reaction in the Primary Circuit Water of PWR

作　　者：龚学余[1] 郭兰英[1] 何宪 凌球 黄锦华[2] 张国书[2] 王英明[3] 

机构地区：[1]中南工学院技术物理系,湖南衡阳421001 [2]核工业西南物理研究院,四川成都610041 [3]中国核动力研究设计院,四川成都610041

出　　处：《原子能科学技术》2000年第2期166-172,共7页Atomic Energy Science and Technology

基　　金：核工业总公司"八五";"九五"重点攻关项目子课题! (95 2 )

摘　　要：压水反应堆内的快中子与一回路水中的氢发生弹性散射产生的高能量的质子与水中核靶发生核反应产生了具有放射性的核素。以秦山二期压水堆为例 ,计算了高能中子通量 ,求出了质子能谱 ,然后计算了一回路水中由16O(p,α) 13 N反应产生的13 N、18O(p ,n) 18F反应产生的18F和11B(p ,n) 11C反应产生的11C的产生率。根据一回路水的循环特征 。The neutron in the pressure water reactor (PWR) core scatters on the hydrogen nuclei of primary coolant to produce the energetic proton, then proton reacts with the target nuclei in primary coolant to produce radionuclide. In this paper we take the Qinshan second periodic pressure water reactor as a sample: first, calculate the high energy neutron flux and obtain the proton spectrum;then,calculate the productive rate of the radionuclides,which are 13 N produced by 16 O (p,α) 13 N reaction , 18 F produced by 18 O(p,n) 18 F reaction, 11 C produced by 11 B(p,n) 11 C reaction; final, according to the circulation character of primary circuit water, obtain the specific radioactivities of these radionuclides.

关 键 词：核反应 比活度 中子通量 放射性核素 

分 类 号：TL375.1[核科学技术—核技术及应用]