原子能科学技术Issue(4)：577-582,6.DOI:10.7538/yzk.2014.48.04.0577
熔岩玻璃体核素衰变热功率的计算
Calculation of Radionuclide Decay Heat Power for Melt Glass
包敏 1王群书 1师全林 1解峰 1王武尚1
作者信息
- 1. 西北核技术研究所，陕西 西安 710024
- 折叠
摘要
Abstract
As the temperature is a key factor affecting melt glass dissolution rate ,the decay heat power generated by radionuclides within melt glass from 10 d to 300 000 d after an underground nuclear test was calculated to assess its influence on temperature and dissolution rate .Radioactive inventories with half-life longer than 1 a ,produced by 100 kt TNT nuclear explosion published by IAEA report were used .The inventories of short-lived fission products with half-life of 1 d-1 a and accumulate yield greater than 0.1% were estimated from the inventory of 137Cs .The decay characteristics of each nuclide were analyzed .The decay energy deposited in melt glass was calculated by the mean alpha , beta and gamma energy released by radioactive decay from ENDF/B Ⅶdatabase .From the calculation ,it can be concluded that the decay heat power decays by power function ,short-lived fission products ,long-lived fission products and actinides are the main contributions to the power at 10-2 000 d , 2 000-60 000 d and after 60 000 d ,respectively .T he influence on melt glass temperature and dissolution rate is indistinctive ,especially after 1 000 d .关键词
熔岩玻璃体/核素/衰变热功率/温度Key words
melt glass/radionuclide/decay heat power/temperature分类
能源科技引用本文复制引用
包敏,王群书,师全林,解峰,王武尚..熔岩玻璃体核素衰变热功率的计算[J].原子能科学技术,2014,(4):577-582,6.
