Determination of Tritium Concentration in Heavy Water
- 1 Department of Physics, Faculty of Science, Arak University, Arak, Iran
- 2 Department of Physics, Faculty of Science, Arak University, Arak, Iran
Abstract
In this work, tritium concentration was determined in different D 2 O enrichment in heavy water samples. Samples were prepared from Arak Heavy Water Production Plant. Tritium concentration was determined utilizing liquid scintillation detector (LSC) system based on β -decay of tritium isotope. In this work instead of simple distillation, the azeotropic distillation method was used. Absorbed spectra and fluorescence spectra were registered by Shimadz spectrometer UV-2100 model and fluorescence spectrometer LS50B model respectively. Tritium concentration was obtained from 1.75 ± 0.80 up 6.16 ± 1.01 Bq/L for 0.35% to 77.50% enrichment of D 2 O concentration in heavy water samples. Coefficient correlation between tritium concentration and D 2 O concentration in heavy water R 2 = 0.853 was derived. For 99.8% enriched D 2 O in heavy water, deviation was observed from direct line that caused decreasing of R 2 .
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