离心级联基本全分离因子的计算与分析  

Calculations and analyses of overallseparation factor for gascentrifuge cascades

作　　者：侯岩松[1] 应纯同[1] 姚冬[1] 

机构地区：[1]清华大学工程物理系,北京100084

出　　处：《清华大学学报（自然科学版）》2004年第3期293-296,共4页Journal of Tsinghua University(Science and Technology)

摘　　要：离心级联分离多组分稳定同位素可以用一组含有单位相对分子质量差下的基本全分离系数的方程表示。通过对不同形式的离心级联进行丰度计算,得到任意两种组分间的全分离因子与它们的相对分子质量之差成指数关系。对矩形级联中各种参数,如级联分流比、供料丰度、以及单机的基本全分离因子等,对于级联的基本全分离因子的影响进行了详细的讨论,得到了级联基本全分离因子同各种参数的关系曲线,确定了基本全分离因子为影响级联分离性能的重要参数之一。The separation of multi-component stable isotopes in a ceatrifuge cascade has been shown to be a set of functions of an overall separation factor per unit relative molecular mass difference. Numerical analyses for several types of centrifuge cascades show that the separation factor is related exponentially to the relative molecular mass difference between any two components for most cascades. The effects of several cascade parameters, such as the cascade cut, the feed concentration, and the overall separation factor for a single centrifuge, on the overall separation factor were analyzed for square gas centrifuge cascades with relationships developed between the overall separation factors for the cascades and these parameters. Therefore, the overall separation factor is confirmed to be one of the most influential parameters on separation performance of centrifuge cascades.

关 键 词：级联理论 气体离心级联 全分离因子 矩形级联 多组分稳定同位素 丰度计算 

分 类 号：TL252[核科学技术—核燃料循环与材料]