[Table of Contents]

Plasma and Fusion Research

Volume 9, 4405103 (2014)

Regular Articles

Study on Nuclear Transmutation of Nuclear Waste by 14 MeV Neutrons
Takanori KITADA, Atsuki UMEMURA and Kohei TAKAHASHI
Osaka University, Graduate School of Engineering, Division of Sustainable Energy and Environmental Engineering, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
(Received 28 June 2013 / Accepted 15 October 2013 / Published 27 June 2014)

Abstract

The object of this study is to clarify the possibility of 14 MeV neutrons to decrease the radioactivity of nuclear waste, especially fission products such as Cs, Sr, Tc, and I. Simulations were performed for several fission products by Monte-Carlo code and burnup calculation code. In comparison to the spectra of thermal reactor and fast reactor, it was found that D-T neutron of 14 MeV is preferable and has the possibility to reduce the radioactivity of fission products such as Cs, Sr, Tc, and I with the magnitude of the flux more than 5 × 1015 [#/cm2/sec] for 1000 days irradiation period. This investigation reveals the possibility and the superiority of 14 MeV neutron than thermal and fast neutron spectra to annihilate the fission products.

Keywords

nuclear waste, fission product, nuclear transmutation, 14 MeV neutron, D-T reaction

DOI: 10.1585/pfr.9.4405103

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References

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This paper may be cited as follows:

Takanori KITADA, Atsuki UMEMURA and Kohei TAKAHASHI, Plasma Fusion Res. 9, 4405103 (2014).