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Primary studies on particle recovery of swipe samples for nuclear safeguards

机译:用于核保障的抽检样品的颗粒回收的初步研究

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摘要

Environmental sampling plays a significant role in nuclear safeguards. Isotopic ratio in uranium-bearing particles from swipe samples provides important information for detecting undeclared activities. Particle recovery which is the primary step of particle analysis, would affect the following analysis. The particle recovery efficiency of ultrasoneration recovery and vacuum suction-impact recovery were measured by alpha spectrometer with standard particles produced via aerosol spray pyrolysis method. The conditions of ultrasoneration were optimized and both recovery methods were evaluated. Finally, a procedure of particle recovery for unknown swipe samples was set up.
机译:环境采样在核保障措施中发挥着重要作用。滑动样品中含铀颗粒中的同位素比率为检测未申报的活动提供了重要信息。颗粒回收是颗粒分析的主要步骤,将影响以下分析。用气溶胶喷雾热解法制备的标准颗粒,用α光谱仪测定了超声波回收和真空抽吸-冲击回收的颗粒回收效率。优化了超声条件,并评估了两种回收方法。最后,建立了未知回收样品的颗粒回收程序。

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