Correlative Microscopy Techniques for the Analysis of Particles in Safeguards Environmental Samples

Electron Microscopy and Analysis Group Conference 2015

Dzigal, N.^1,2 ; Chinea-Cano, E.^1

International Atomic Energy Agency, Wagramerstrasse 1, Vienna

1220, Austria^1

Vienna University of Technology, Karlsplatz 13, Vienna

1040, Austria^2

关键词: Correlative microscopies;    Environmental particles;    Focussed ion beams;    Laser micro dissections;    Light microscopes;    Micro-analytical techniques;    Safeguards environmental samples;    Time-of-flight mass spectrometers;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/644/1/012015/pdf
DOI  :  10.1088/1742-6596/644/1/012015

来源: IOP

【 摘 要 】

This paper presents a novel approach to environmental particle analysis for safeguards by means of a combination of micro-analytical techniques. It includes the tandem utilization of two separate light microscopes, a scanning electron microscope and a femtosecond laser-ablation ICP-MS. These are: a light microscopy automated particle relocation device (Zeiss Z2m); an optical-microscopy-based laser micro-dissection system (IX83 MMI+Olympus); a focussed ion beam scanning electron microscope equipped with a time-of-flight mass spectrometer extension (Tescan Lyra3) and a fs LA-ICP-MS (J200 from Applied Spectra Inc. and Thermofisher Scientific iCap Q). The samples examined in this contribution are analysed for their nuclear material signatures, in particular the presence of uranium isotopes.