Calculation of tritium release from driver fuels into primary coolant of research reactors

Ho, H. Q. ; Ishitsuka, Etsuo

Increasing of tritium concentration in the primary coolant of the research and test reactors during operation had been reported. To check the source for tritium release into the primary coolant during operation of the JMTR and the JRR-3M, the tritium release from the driver fuels was calculated by MCNP6 and PHITS. It is clear that the calculated values of tritium release from fuels are as about 10 $^{7}$ and 10 $^{6}$ Bq for the JMTR and JRR-3M, respectively, and that calculated values are about 4 order of magnitude smaller than that of the measured values. These results show that the tritium release from fuels is negligible for both the reactors.

Language	:	English
Journal	:	Physical Sciences and Technology
Volume	:	5
Number	:	2
Pages	:	p.53 - 56
Publication Year/Month	:	2019/00
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Paper URL	:	https://doi.org/10.26577/phst-2018-2-158
DOI for research data	:	Link to research data related to this paper/report.
Keywords	:	Tritium Release Rate; Driver Fuels; Primary Coolant; JMTR; JRR-3M
Research Facility	:	JMTR(材料試験炉);JRR-3M(研究炉3)
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Article of JAEA R&D Review	:
Cooperating Institute	:	Al-Farabi Kazakh National University

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Registration No. : AA20180479
JAEA Abstracts No. : 47000852
Paper Submission No. : 21491

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