A cascade scheme allowing two intermediate-mass isotopes to be concentrated in a single cascade above the maximum admissible concentrations at the outputs of ordinary cascades is proposed. A cascade with two flow expansions and two additional product flows is used for this. For the example of a mixture of tungsten isotopes, it is shown that the concentrations of 183W and 184W can be increased simultaneously up to 70 and 80%, respectively. In addition, additional product flows can be equal to 50–70% of the primary (end) product flow of the cascade.

中文翻译：

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用于同时浓缩中间组分的具有流动膨胀的级联

提出了一种级联方案，允许将两种中等质量的同位素浓缩在一个级联中，高于普通级联输出的最大允许浓度。为此使用具有两个流扩展和两个附加产品流的级联。对于钨同位素混合物的例子，显示 183W 和 184W 的浓度可以同时增加到 70% 和 80%，分别。此外，额外的产品流量可能等于级联初级（最终）产品流量的 50-70%。