2643 鉛ビスマス共晶合金中に生成されたポロニウムの蒸発・付着特性(S57-4 原子炉システムおよびその要素技術(4),S57 原子炉システムおよびその要素技術)

概要

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Lead-Bismuth Eutectic has good characteristics as a coolant for fast reactors, but it has a problem of polonium production. Some fundamental experiments were performed to investigate the characteristics of evaporation and adhesion of polonium. In the evaporation experiment, direct contact experiment of neutron irradiated lead-bismuth and water were performed. The results showed there was no clear evidence that evaporation of polonium was increased remarkably by the direct contact. In the adhesion experiment, chemical form of evaporated polonium was discussed from the adhesion characteristics. By these experiments, some fundamental knowledge were obtained related to evaporation of polonium from lead-bismuth eutectic.
2006-09-15