Title: High-resolution alpha-particle spectrometry of the 230U decay series
Authors: MAROULI MARIAPOMME StefaanPAEPEN JanVAN AMMEL RafJOBBAGY VIKTORDIRICAN ABDULLAHSULIMAN GABRIELSTROH HEIKOAPOSTOLIDIS ChristosABBAS KamelMORGENSTERN Alfred
Citation: APPLIED RADIATION AND ISOTOPES vol. 70 no. 9 p. 2270-2274
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Publication Year: 2012
JRC N°: JRC66157
ISSN: 0969-8043
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC66157
DOI: 10.1016/j.apradiso.2012.02.107
Type: Contributions to Conferences
Abstract: High-resolution alpha-particle spectrometry was performed on the 230U decay series. A 230U source was prepared on stainless steel disk by electrodeposition in an ammonium nitrate solution. Spectrometry of the alpha-particle energy spectrum was performed with ionimplanted planar silicon detectors in vacuum. A set of alpha emission probabilities is presented for 230U and 226Th. The measured peak intensities were corrected mathematically for coincidental detection of alpha-particles and conversion electrons emitted in the same decay. A good agreement with literature data was observed. The uncertainty budget and the correlation matrix are presented. The validity of the alpha-particle energies was tested and could be confirmed for most peaks within a few keV, but discrepancies were found for the 2nd peak of 226Th and the main peak of 218Rn.
JRC Institute:Institute for Reference Materials and Measurements

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