Rostock 2019 – wissenschaftliches Programm
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MS: Fachverband Massenspektrometrie
MS 3: Mass Spectrometry - Posters
MS 3.9: Poster
Dienstag, 12. März 2019, 16:30–18:15, S Fobau Physik
Activity determination of reference nuclides in the nuclear waste management — •C. Müller-Gatermann1, S. Heinze1, M. Schiffer1, A. Stolz1, G. Hackenberg1, S. Herb1, L. Bussmann1, R. Spanier1, A. Dewald1, R. Magreiter2, E. Strub2, M. Michel2, K. Eberhardt3, M. Dewald4, and B. Dittmann4 — 1Institut für Kernphysik, Köln, Deutschland — 2Abteilung Nuklearchemie, Köln, Deutschland — 3Institut für Kernchemie, Mainz, Deutschland — 4Gesellschaft für Anlagen- und Reaktorsicherheit (GRS) GmbH
In the field of nuclear waste management liquid scintillation technique (LS) plays an important role among others, but complex chemistry is needed to reach low detection limits. We explored the possibility to replace LS by AMS techniques for specific isotopes. For the test we used reactor concrete material originating from KNK and MZFR research reactors from Karlsruhe, in addition we irradiated concrete samples with thermal as well as with epithermal neutrons with different doses at the Mainz TRIGA reactor. In order to verify the AMS results we measured the concentration of γ-emitters also activated in the sample material. This data can be used for consistency check. In this contribution we describe the experimental setups and discuss the results obtained so far.