Measurement of tritium concentration in heavy water by azeotropic distillation
Publish place: Radiation Physics and Engineering، Vol: 4، Issue: 3
Publish Year: 1402
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_RPE-4-3_004
تاریخ نمایه سازی: 4 تیر 1402
Abstract:
In this work, the concentration of tritium in D۲O of various degrees of purity was measured. Samples were taken from the Arak heavy water plant and tritium concentrations were determined using a liquid scintillation detector (LSC) based on tritium decay. In this work, instead of simple distillation, is used the azeotropic distillation method. Absorption and fluorescence spectra were recorded using a Shimadzu UV-۲۱۰۰ spectrometer and an LS۵۰B fluorescence spectrometer. The tritium concentration in the samples varied from ۱.۷۵ ± ۰.۸۰ to ۶.۱۶ ± ۱.۰۱ Bq.L-۱ in D۲O enrichment from ۰.۳۵% to ۷۷.۵۰%. The correlation coefficient between tritium concentration and D۲O purity in heavy water was obtained as R۲ = ۰.۸۵۳. Deviation for ۹۹.۸% D۲O enriched in heavy water. This was observed from a straight line, leading to a drop in R۲. The results of this measurement showed that the tritium concentration did not exceed the value set by the Nuclear Regulatory Commission (NRC).
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Authors
Reza Pourimani
Department of Physics, Faculty of Science, Arak University, Arak, Iran
Mohammad Reza Zare
Department of Physics, Faculty of Science, University of Isfahan, Isfahan, Iran
Mehrdad Aghamohammadi
Department of Physics, Faculty of Science, Arak University, Arak, Iran
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