Preparation of radiochemically pure (79)Se and highly precise determination of its half-life

Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine
Gerhard JörgChristoph Lierse V Gostomski

Abstract

Reliable knowledge of the (79)Se half-life is crucial, e.g. for the safety assessments of final repositories for nuclear waste. However, a literature survey reveals an inconsistent picture, indicating remarkably difficult experimental conditions. This work reports a new value of 3.27(8) × 10(5) a for the half-life of (79)Se. The uncertainty is less than half of the latest published result. The sample was prepared radiochemically pure from a reprocessing solution by exploitation of reductive deposition on Cu, anion exchange chromatography and sublimation. The specific activity was determined by inductively coupled plasma optical emission spectrometry (ICP-OES) and liquid scintillation counting (LSC). Hydride generation multicollector inductively coupled plasma mass spectrometry (HG-MC-ICP-MS) was applied for the establishment of the isotopic composition.

References

Dec 13, 2005·Journal of Radiological Protection : Official Journal of the Society for Radiological Protection·G OlyslaegersB Kanyar
Dec 13, 2006·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·Philippe BienvenuMarie-Christine Lépy

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Citations

Jan 15, 2013·Analytical and Bioanalytical Chemistry·Niko KivelInes Günther-Leopold
Mar 17, 2012·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·Y NedjadiF Bochud
Mar 25, 2016·Journal of Contaminant Hydrology·Nicolas Finck, Kathy Dardenne
Jun 18, 2015·Journal of Environmental Management·Esra Orucoglu, Sevilay Haciyakupoglu
Jun 11, 2015·Environmental Science & Technology·Amalia Jiménez, Manuel Prieto
Aug 16, 2016·Journal of Environmental Radioactivity·Mervi SöderlundJukka Lehto
May 20, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·J KretzschmarV Brendler
Jul 20, 2018·Dalton Transactions : an International Journal of Inorganic Chemistry·Nicolas BörsigThomas Neumann
Jan 16, 2014·Environmental Science & Technology·Norbert JordanRené Hübner
Dec 23, 2017·Environmental Science & Technology·Bin MaLaurent Charlet
Dec 30, 2017·Environmental Science & Technology·Xiaoyu YangChunli Liu
Aug 17, 2021·Journal of Hazardous Materials·Jiaming XiongHongxia Liu
Jan 23, 2018·Inorganic Chemistry·Eike M LangerEvgeny V Alekseev
Sep 1, 2021·The Science of the Total Environment·Yuka YokoyamaYoshio Takahashi

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