Dzigal N, Chinea-Cano E, Walsh S, Limbeck A
TU Wien, Institute of Chemical and Analytical Technologies, Getreidemarkt 9/164, 1060 Vienna, Austria.
International Atomic Energy Agency, Wagramerstrasse 1, 1220 Vienna, Austria.
Talanta. 2017 May 15;167:583-592. doi: 10.1016/j.talanta.2017.01.090. Epub 2017 Feb 3.
This paper details an improved approach to environmental particle analysis for safeguards by means of a combination of an upgraded version of the so-called fission track method with state-of-the-art microscope and microprobe techniques. Improvements to the fission track method comprise a novel sample assembly, the automation of several of its steps and the extensive use of correlative microscopy. This is followed by an automated isolation of particles-of-interest by means of laser micro-dissection (LMD) and their collection onto a harvester for transfer to other micro-analytical instruments for further analysis. The samples examined in this contribution were analysed for their nuclear material signatures, in particular the presence of uranium isotopes. The length of a single analysis cycle herewith was reduced to 12 days.
本文详细介绍了一种改进的环境颗粒分析方法，用于保障措施，它将所谓的裂变径迹法的升级版与最先进的显微镜和微探针技术相结合。裂变径迹法的改进包括一种新颖的样品组装、其若干步骤的自动化以及相关显微镜的广泛应用。接下来是通过激光显微切割（LMD）自动分离感兴趣的颗粒，并将它们收集到采集器上，以便转移到其他微分析仪器进行进一步分析。本论文中所检测的样品针对其核材料特征进行了分析，特别是铀同位素的存在情况。由此，单个分析周期的时长缩短至12天。
