Production and characterization of enriched samples of 133mXeAim of the studyThe aim is to develop a method for the production of enriched 133mXe samples. ImplementationThe isomeric state of 133Xe (T1/2 = 2.19 d) at the excitation energy of 233 keV de-excitates to the ground state of 133Xe (T1/2 = 5.25 d) which further beta-decays to stable 133Cs. These data suggest that in an initially clean sample of 133mXe only two radioactive species are present at any time and the user can always calculate exactly the 133mXe/133Xe ratio present in the sample. It should also be straightforward to release the implanted xenon into the gas phase by simply heating the foil. Dissemination and exploitation of the resultsShould this project be successful enriched samples of 133mXe will be available for the development and testing of the noble gas sampler devices for the verification of the Comprehensive Nuclear Test-Ban Treaty. The results of this work were published in Applied Radiation and Isotopes in 2010 (Vol. 68, p. 450). They were also acknowledged by New Scientist magazine in 10 April 2010 (p. 6). In the future, enriched samples of 133mXe will be available for the development and testing of the noble gas sampler devices for the verification of the Comprehensive Nuclear Test-Ban Treaty. CollaboratorsUniversity of Jyväskylä, Finland Timetable2008–2009 Responsible scientistKari Peräjärvi Page updated 03/06/2010
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