TY - GEN
T1 - Study on an innovative fast reactor utilizing hydride neutron absorber
AU - Konashi, Kenji
AU - Iwasaki, Tomohiko
AU - Itoh, Kunihiro
AU - Hirai, Mutsumi
AU - Sato, Ikken
AU - Kurosaki, Ken
AU - Suzuki, Akihiro
AU - Matsumura, Yoshihito
AU - Tahara, Yoshihisa
PY - 2008/12/1
Y1 - 2008/12/1
N2 - 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.
AB - 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.
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M3 - Conference contribution
AN - SCOPUS:70349850780
SN - 9781605607870
T3 - International Conference on Advances in Nuclear Power Plants, ICAPP 2008
SP - 2183
EP - 2190
BT - American Nuclear Society - International Conference on Advances in Nuclear Power Plants, ICAPP 2008
T2 - International Conference on Advances in Nuclear Power Plants, ICAPP 2008
Y2 - 8 June 2008 through 12 June 2008
ER -