The law of characteristic X-rays emitted by target element under the radiation of isotope source in a range of low energy is discussed.

介绍了在低能范围内利用放射性同位素源发出的初级射线，照射和激发靶片元素产生的特征X射线的规律性；

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The molten lead target unit are combined with an on line isotope separator.

将熔化铅靶技术应用于在线同位素分离器。

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Convolution operations are performed between the calculated relative isotope abundances and the mass spectral target peak shape functions to form calculated isotope peak cluster data.

在计算出的相对同位素丰度与质谱目标峰形状函数之间执行卷积运算，以形成计算的同位素峰集群数据。

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If enacted in its current form, Section 621 of this year's Energy bill , by contrast, would allow foreign companies to receive U.S. HEU for use in medical isotope production without having to move toward a low-enriched uranium (LEU) target, even if it is technically feasible for them to do so.

CENTERFORSECURITYPOLICY: Kyl and Schumer move to monitor uranium exports