高纯~3He提取方法研究与比较

@罗德礼 $中国工程物理研究院!四川绵阳621900,四川大学原子分子物理所,四川成都610065@蒙大桥$ 中国工程物理研究院!四川绵阳621900,四川大学原子分子物理所,四川成都610065

详细信息

Investigation and Comparison of ~3He Cleanup Methods

LUO De li 1,2 , MENG Da qiao 1,2 (1.China Academy of Engineering and Physics, Mianyang 621907, China) (2.Institute of Molecular Physics, Sichuan University, Chengdu 610065, China)

摘要: 报道了采用 70 0℃铀床、77K低温活性炭柱提取高纯 3He,之后采用氢同位素稀释法除去 3He中微量氚的研究结果。 70 0℃流通式铀床和 77K低温活性炭柱吸附方法, 能快速除去 3He中杂质组分, 得到纯度大于 99.99%的高纯 3He;氢同位素稀释法能够将 3He中 3H摩尔分数降到低于 3.5×10 -10 %。与其他方法比较, 氢同位素稀释法工艺过程更加简单, 3He收率更高
- ~3He /
- 提纯 /
- 活性炭吸附 /
- 铀床 /
- 氢同位素稀释法
Abstract: He cleanup methods using uranium bed and active carbon absorption and then using hydrogen isotope dilution to elimination trace tritium are introduced. The results show that both U bed and active carbon absorption column are effective in 3He extraction. 3He gas with purity 99.99% is obtained using these methods and 3H mole fraction in 3He is reduced dowm to 3.5×10 -10 % using hydrogen isotope dilution. Comparing with the other methods, the U bed and hydrogen isotope dilution methods are more effective and simple in 3He cleanup and trace tritium elimination.
- ~3He /
- cleanup /
- active carbon absorption /
- uranium bed /
- hydrogen isotope dilution method

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