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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Production of Rhenium by Transmuting Tungsten Metal in Fast Reactors with Moderator
Author(s)
Tsugio Yokoyama1, Yuki Tanoue2, Atsunori Terashima2 and Masaki Ozawa1
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DOI:10.17265/1934-8975/2016.03.003
Affiliation(s)
1. Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology, Tokyo 152-8550, Japan
2. Department of Nuclear Engineering, Graduate School of Science and Engineering, Tokyo Institute of Technology, Tokyo 152-8550, Japan
ABSTRACT
The feasibility of rhenium (Re)
production by irradiating tungsten (W) metal in
a medium size fast reactor was evaluated by using a Monte Carlo code. The fast reactor can
produce about 50 kilograms of Re per every 3 years, which corresponds 10% of Japanese domestic production. The specific activity
of Re can be reduced below the exemption level or even the natural Re level if
W and osmium is separated after
the irradiation. The use of ZrD1.7 moderator reduces the specific activity by half compared to that of ZrH1.7 case, and even the no moderator case is permissible to produce the production
of Re which has lower specific reactivity than that of natural Re.
KEYWORDS
Rhenium, tungsten, fast reactor, transmutation, MVP, ORIGEN2, specific activity.
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