Selection of sodium coolant for fast reactors in the US, France and Japan

米国,仏国,日本における高速炉冷却材としてナトリウムの選択

阪本 善彦 ; Garnier, J.-C.*; Rouault, J.*; Grandy, C.*; Fanning, T.*; Hill, R.*; 近澤 佳隆  ; 小竹 庄司*

Sakamoto, Yoshihiko; Garnier, J.-C.*; Rouault, J.*; Grandy, C.*; Fanning, T.*; Hill, R.*; Chikazawa, Yoshitaka; Kotake, Shoji*

日米仏の三国で高速炉は持続可能な核エネルギー供給、高レベル廃棄物処理の観点から不可欠であることを確認した。高速炉の冷却材の比較評価を行い、最終的に三国一致してナトリウムが最も有望であることを確認した。

This trilateral study confirms that the fundamental mission of the fast reactor is to achieve significant uranium utilization and waste management goals. Thus, fast spectrum reactor concepts are vital for nuclear fuel cycle sustainability goals. The trilateral countries agree that SFR, GFR and LFR are capable to achieve the goals. However SFR is the most matured technology from the view point of industrial deployment while GFR and LFR still require long term development before a test reactor project could begin. The trilateral common view supports fast reactor project situations in each country.