辐射防护2013，Vol.33Issue(3)：151-157,7.
熔岩玻璃体核素90Sr和239Pu释放量的计算
Calculation of Radionuclides 90Sr and 239Pu Releasing Amount from Melt Glass
摘要
Abstract
Assumed the melt glass consists of spheres with uniformly size and nuclides' content,the mathematical expression is deduced to calculate nuclide releasing rates.According to the glass dissolution rate measured by Livermore laboratory,the lower and upper dissolution rates of granitic melt glass are estimated to be 5.04 × 10-7 g/(m2·d) and 1.42 × 10-4 g/(m2·d) at 25 ℃.The releasing rates and ratios of 90Sr and 239Pu are calculated and from the result it can be concluded the radionuclide dissolution rate and ratio at high temperature stage is 104 ～5 times higher than at normal temperature and that nuclides dissolution largely takes place at high temperature stage.The dissolution ratio of 90Sr might between 0.3％ and 65％,the dissolution ratio of 239Pu might between 0.5％ and 82％.The key factors affecting nuclides release are temperature,glass dissolution rate and reactive surface area.关键词
熔岩玻璃体/温度/释放率/释放份额Key words
melt glass / temperature / releasing rate / releasing ratio分类
能源科技引用本文复制引用
包敏,王群书..熔岩玻璃体核素90Sr和239Pu释放量的计算[J].辐射防护,2013,33(3):151-157,7.
