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Measurement and analysis of reflector reactivity worth by replacing stainless steel with zirconium at the fast critical assembly (FCA) |
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| Authors: | Masahiro Fukushima Yasunori Kitamura Masaki Andoh Teruhiko Kugo |
| Affiliation: | 1. Nuclear Science and Engineering Directorate , Japan Atomic Energy Agency, 2-4 Shirane, Shirakata, Tokai-mura , Naka-gun , Ibaraki 319-1195 , Japan fukushima.masahiro@jaea.go.jp;3. Nuclear Science and Engineering Directorate , Japan Atomic Energy Agency, 2-4 Shirane, Shirakata, Tokai-mura , Naka-gun , Ibaraki 319-1195 , Japan |
| Abstract: | A reflector reactivity worth was measured by replacing stainless steel with zirconium at the FCA. The experimental result of the positive reflector reactivity worth demonstrates the effectiveness of the zirconium reflector compared with the SS reflector in the fast reactor core. This paper also focuses on the validation of standard calculation methods used for fast reactors with JENDL-4.0. As a result, it is confirmed that the standard calculation methods for the reflector reactivity worth show agreement within the experimental error. |
| Keywords: | fast reactor core FCA experiment reflector reactivity worth zirconium stainless steel standard calculation methods JENDL-4.0 |