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※ 半角英数字
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Production and chemistry of transactinide elements

超アクチノイド元素の合成と化学

永目 諭一郎 ; 羽場 宏光*

Nagame, Yuichiro; Haba, Hiromitsu*

超アクチノイド元素の合成と化学的性質に関する研究が最近著しい進歩を遂げている。これまでに報告されている超アクチノイド元素の合成や核的性質並びに化学的性質に関する研究成果をレビューする。合成に関してはインフライト分離装置と組合せたシングルアトム検出による新元素の合成と同定法を紹介する。またシングルアトムを対象とした迅速化学分離装置の開発とそれに伴う超アクチノイド元素の化学的性質に関する最新の成果を解説する。

This article gives a brief summary of the reported syntheses and nuclear properties of the transactinide elements as well as chemical investigation of those elements. Experimental techniques of single atom detection after in-flight separation with electromagnetic separators have made a breakthrough in production and identification of new transactinide nuclides. Development of automated rapid chemical separation techniques based on one atom-at-a-time scale has also considerably contributed to the progress of chemical studies of the transactinide elements. Some key experiments exploring new frontiers of the production and chemical characterization of the transactinide elements as well as the state of the art in these experimental studies are demonstrated. Prospects of extending nuclear and chemical studies of the heaviest elements in near future are shortly considered.

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