Publikationen

Relative formation probabilities for fluoride and oxyfluoride anions of U, Np,Pu and Am in accelerator mass spectrometry measurements at VERA

Autor(en)
A. Wiederin, M. Kern, K. Hain, M. Martschini, A. Sakaguchi, P. Steier, A. Yokoyama, R. Golser
Abstrakt

Fluoride molecular anions have emerged as a potential alternative to oxides for the analysis of actinides in AMS. Research at the Vienna Environmental Research Accelerator (VERA) has focused on mixing samples prepared in an Fe

2O

3 matrix with PbF

2 for in situ fluoridation during the sputter process. The relative formation probabilities for a range of (oxy-)fluoride molecular anions of uranium, neptunium, plutonium, and americium have been found to be characteristic for each of the actinides investigated. These data can help to identify isobaric interference for the mentioned actinides. A first application is monitoring of the

236U co-production with

236Np during Th irradiation. Extracting these actinides in the form of tetrafluoride anions allows the suppression of U by an order of magnitude relative to Np.

Organisation(en)
Isotopenphysik
Externe Organisation(en)
University of Tsukuba, Kanazawa University
Journal
Nuclear Instruments & Methods in Physics Research. Section B. Beam Interactions with Materials and Atoms
Band
528
Seiten
40-44
Anzahl der Seiten
5
ISSN
0168-583X
DOI
https://doi.org/10.1016/j.nimb.2022.07.011
Publikationsdatum
10-2022
Peer-reviewed
Ja
ÖFOS 2012
103014 Kernphysik
Schlagwörter
ASJC Scopus Sachgebiete
Nuclear and High Energy Physics, Instrumentation
Link zum Portal
https://ucris.univie.ac.at/portal/de/publications/relative-formation-probabilities-for-fluoride-and-oxyfluoride-anions-of-u-nppu-and-am-in-accelerator-mass-spectrometry-measurements-at-vera(05030763-c737-4b1e-ba8c-4c7cc912bb84).html