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Report No.

Utilization research and development of innovative fast reactor core with hydride neutron absorber, 3; Scope of the FCA experiments and the result of the 1st experiment

Ando, Masaki; Fukushima, Masahiro; Kitamura, Yasunori; Kugo, Teruhiko; Iwasaki, Tomohiko*; Konashi, Kenji*

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.



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