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Ando, Masaki; Fukushima, Masahiro; Kitamura, Yasunori; Kugo, Teruhiko; Iwasaki, Tomohiko*; Konashi, Kenji*
no journal, ,
Experimental study to evaluate feasibility of hafnium hydride neutron absorber has been planned at FCA. This presentation reports the scpe of the plan and the results of the first experiment and analysis using plate-shaped simulating materials. The calculation accuracy of the standard fast reactor analysis method with the use of the JENDL-3.3 for the experimental results with boron carbide and hafnium hydride absorbers were compared. Underestimation of several % was observed for the calculation of the hafnium hydride in comparison with that of the boron carbide.
Ando, Masaki; Fukushima, Masahiro; Kitamura, Yasunori; Kugo, Teruhiko; Iwasaki, Tomohiko*; Konashi, Kenji*
no journal, ,
A series of reactivity experiment to evaluate nuclear characteristics of hafnium hydride (HfH) absorber with the use of the FCA was planned in the framework of "Utilization Research and Development of Innovative Fast Reactor Core with Hydride Neutron Absorber". The experiment consists of two phases; the reactivity worth experiment with the use of plates simulating HfH were performed in the 1st phase, and that with the pin-shaped testing materials will be carried out in the 2nd phase. The result of the analysis using the standard fast reactor analysis method with the JENDL-3.3 library showed underestimation of several %.
Iwasaki, Masahiro*; Murokawa, Takamitsu*; Kobayashi, Shinji*; Ishii, Takashi*; Kusano, Takashi*; Kurita, Kazuaki*; Yamawaki, Hiroyuki; Sato, Toshinori
no journal, ,
no abstracts in English
Nakaya, Atsushi*; Tada, Hiroyuki*; Okuyama, Yasuji*; Iwasaki, Masahiro*; Kusano, Takashi*; Kubo, Yohei*; Yamawaki, Hiroyuki; Sato, Toshinori
no journal, ,
no abstracts in English
Takemura, Takato*; Matsui, Hiroya; Saito, Ryo*; Tada, Hiroyuki*; Iwasaki, Masahiro*; Mishima, Shunichi*; Sato, Haruo*
no journal, ,
Generally, a shotcrete use as the support of a tunnel to keep the stability. However, the condition of interface between a shotcrete and rock mass is unknown. Therefore, a laboratory tests under long-term immersion environment has been carried out to understand the mechanism of the change the interface. This report summarize the knowledges during the laboratory tests.