Study on an innovative fast reactor utilizing hydride neutron absorber

Kenji Konashi, Tomohiko Iwasaki, Kunihiro Itoh, Mutsumi Hirai, Ikken Sato, Ken Kurosaki, Akihiro Suzuki, Yoshihito Matsumura, Yoshihisa Tahara

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Citations (Scopus)

Abstract

The extension of the control rod ljfe of the Fast Reactor (FR) and the compression of the excess reactivity of the FR core are proposed by adopting the hafnium hydride (HfHx) for control rod material and by using the gadolinium hydride (GdHx) burnable poison (BP)for the reactivity recession, respectively. Our study clarfied that the control rod lfe could be prolonged from one year to 6 years and the excess reactivity of the beginning of the core cycle will be reduced to half and the number of the control rods is also reduced to half by adopting the hydride BP. Some HfHx pellets are fabricated and their resistibility to high temperature environment and the compatibility with sodium in the simulated core environment are confirmed by the experiments. In addition, the irradiation study has also been performed in the Japanese experimental FR "Joyo" and the post irradiation experiments show no remarkable changes after irradiation.

Original languageEnglish
Title of host publicationAmerican Nuclear Society - International Conference on Advances in Nuclear Power Plants, ICAPP 2008
Pages2183-2190
Number of pages8
Publication statusPublished - 2008 Dec 1
EventInternational Conference on Advances in Nuclear Power Plants, ICAPP 2008 - Anaheim, CA, United States
Duration: 2008 Jun 82008 Jun 12

Publication series

NameInternational Conference on Advances in Nuclear Power Plants, ICAPP 2008
Volume4

Other

OtherInternational Conference on Advances in Nuclear Power Plants, ICAPP 2008
CountryUnited States
CityAnaheim, CA
Period08/6/808/6/12

ASJC Scopus subject areas

  • Fuel Technology
  • Nuclear Energy and Engineering

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  • Cite this

    Konashi, K., Iwasaki, T., Itoh, K., Hirai, M., Sato, I., Kurosaki, K., Suzuki, A., Matsumura, Y., & Tahara, Y. (2008). Study on an innovative fast reactor utilizing hydride neutron absorber. In American Nuclear Society - International Conference on Advances in Nuclear Power Plants, ICAPP 2008 (pp. 2183-2190). (International Conference on Advances in Nuclear Power Plants, ICAPP 2008; Vol. 4).