离心法分离锇同位素的试验研究  

Experimental Study on Osmium Isotopes Separation by Gas Centrifuge

作　　者：周明胜[1] 杨光伟[1] 聂玉光[1] 

机构地区：[1]清华大学工程物理系,北京100084

出　　处：《同位素》2004年第1期5-7,共3页Journal of Isotopes

摘　　要：对天然锇同位素进行了离心分离。选择OsO4作为工作介质,以单机分离实验结果证实了γij=γ0ΔAij关系式,拟合出实际的γ0。在此基础上通过四台级联分离实验得到了192Os丰度大于99%的OsO4。Osmium isotopes in the natural isotopic mixture are separation by gas centrifuge technology. OsO_4 is chosen as the process gas. The relationship γ_(ij)=γ_0^(ΔA_(ij)) is verified by experiments using a single centrifuge, and the real value of γ_0 is obtained by fitting. Based on this, a four-stage cascade is degigned to separate ^(192)Os. The results show that the abundance of ^(192)Os is more than 99%.

关 键 词：离心法 锇同位素 Γ射线 丰度 贫化系数 

分 类 号：TL252[核科学技术—核燃料循环与材料]