Abstract
Methods have been developed for the routine analysis of129I in effluents of fuel reprocessing plants using 29.4 keV xenon X-rays. Direct counting methods have been standardized in liquid medium as well as in ion-exchange resin medium. A low energy photon spectrometry Ge detector system and a well-type NaI/Tl/ detector are used for direct counting. Attenuation of xenon X-rays in liquid medium as well as in ion-exchange resin medium have been studied. Sample size is optimized by studying the self attenuation of xenon X-rays in the sample. Activity as low as 1 Bq could be detected with an accuracy of 11% and 30% using LEPS and NaI/Tl/counting systems, respectively.
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Ravi, P.M., Iyer, M.R., Sahasrabudhe, S.G. et al. A method for quick estimation of129I by low energy photon spectrometry. Journal of Radioanalytical and Nuclear Chemistry Letters 108, 99–108 (1987). https://doi.org/10.1007/BF02164695
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DOI: https://doi.org/10.1007/BF02164695