Title: The half-life of 129I
Authors: GARCIA-TORANO E.ALTZITZOGLOU TIMOTHEOSAUERBACH P.BE MARIE-MARTINEBOBIN C.CASSETTE P.CHARTIER FRÉDÉRICDERSCH RAINERFERNANDEZ M.ISNARD HELENEKOSSERT K.LOURENCO VNAEHLE O.NONELL A.PEYRES VIRGINIAPOMME STEFAANROZKOV ANDREJSANCHEZ-CABEZUDO A.SOCHOROVA J.
Citation: APPLIED RADIATION AND ISOTOPES vol. 140 p. 157-162
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Publication Year: 2018
JRC N°: JRC111570
ISSN: 0969-8043
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC111570
DOI: 10.1016/j.apradiso.2018.06.007
Type: Articles in periodicals and books
Abstract: The radionuclide 129I is a long-lived fission product that decays to 129Xe by beta-particle emission. It is an important tracer in geological and biological processes and is considered one of the most important radionuclides to be assessed in studies of global circulation. It is also one of the major contributors to radiation dose from nuclear waste in a deep geological repository. Its half-life has been obtained by a combination of activity and mass concentration measurements in the frame of a cooperation of 6 European metrology institutes. The value obtained for the half-life of 129I is 16.14 (12) × 106 a, in good agreement with recommended data but with a significant improvement in the uncertainty.
JRC Directorate:Nuclear Safety and Security

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