Authors:	Kneip, Nina Düllmann, Christoph E. Gadelshin, Vadim Heinke, Reinhard Mokry, Christoph Raeder, Sebastian Runke, Jörg Studer, Dominik Trautmann, Norbert Weber, Felix Wendt, Klaus
Title:	Highly selective two-step laser ionization schemes for the analysis of actinide mixtures
Online publication date:	27-May-2021
Year of first publication:	2020
Language:	english
Abstract:	Resonance ionization mass spectroscopy has proven to be a very efficient and selective method for the spatially resolved ultratrace determination of actinide contaminations, and the analysis of specific element and isotopic distributions on surfaces and environment particles. We report on the identification of highly element-selective optical excitation schemes identified for this purpose, with a particular focus on the precise determination of the isobaric ratios of 235U to 239Pu as well as 243Am to 241Pu. The chosen two-step ionization schemes were characterized with respect to their element selectivity on synthetic multi-element actinide mixtures, with an element ratio Pu : Am : U of 1 : 10 : 104, a composition which is typical, e.g., for spent nuclear reactor fuels.
DDC:	530 Physik 530 Physics 540 Chemie 540 Chemistry and allied sciences
Institution:	Johannes Gutenberg-Universität Mainz
Department:	FB 08 Physik, Mathematik u. Informatik FB 09 Chemie, Pharmazie u. Geowissensch.
Place:	Mainz
ROR:	https://ror.org/023b0x485
DOI:	http://doi.org/10.25358/openscience-5959
Version:	Published version
Publication type:	Zeitschriftenaufsatz
License:	CC BY
Information on rights of use:	https://creativecommons.org/licenses/by/4.0/
Journal:	Hyperfine interactions 241
Pages or article number:	45
Publisher:	Springer Verlag
Issue date:	2020
ISSN:	1572-9540
Publisher URL:	https://doi.org/10.1007/s10751-020-01712-4
Publisher DOI:	10.1007/s10751-020-01712-4
Appears in collections:	JGU-Publikationen