高分子系高性能遮蔽材の開発と応用に関する研究

概要

論文の詳細を見る
It is necessary to make the shield structure of marine reactor lighter and smaller until nuclear ships are put into practical use. Meanwhile, efforts have been made to reduce the exposure of employees in nuclear facilities following instructions based on the ALARA spirit, which requires more shields. Development of high-peformance shielding materials is one of the ways to meet these requirements which oppose each other. Such materials are also very useful for the transport or the storage technology of radioactive materials. Studies are carried out to develop high-performance shielding materials that have good shielding performance for both neutrons and gamma rays and have low activation property. As raw materials, lead and boron or their chemical compounds and high hydrogen content monomers are selected. They are mixed and made into a solid state by using an ultraviolet curing system. Computaional analysis of the materials proves their shielding and activation properties sufficiently well as expected. That is, an ordinary concrete shield can be replaced with the material of about half thickness. Furthermore, almost no changeis observed in their weight when they are heated up to 100℃ degree from room temperature. Tentatively, one of the materials is applyed as a compensational shield in irregularities, that is, a bent duct and an annular offset gap. Calculations prove that the application of the material to these shield defects is made successfully.
独立行政法人海上技術安全研究所の論文
1999-05-19

高分子系高性能遮蔽材の開発と応用に関する研究

スポンサーリンク

概要

著者

関連論文

スポンサーリンク