Superheavy element nuclear chemistry at RIKEN

Hiromitsu Haba, Daiya Kaji, Yoshitaka Kasamatsu, Hidetoshi Kikunaga, Yukiko Komori, Yuki Kudou, Kouji Morimoto, Kosuke Morita, Kazuhiro Ooe, Kazutaka Ozeki, Nozomi Sato, Atsushi Shinohara, Atsushi Toyoshima, Akihiko Yokoyama, Akira Yoneda, Takashi Yoshimura

研究成果: Conference contribution

抄録

A gas-jet transport system has been coupled to the RIKEN gas-filled recoil ion separator GARIS to startup superheavy element (SHE) chemistry at RIKEN. The performance of the system was appraised using an isotope of element 104, 261Rf, produced in the 248Cm(18O,5n) 261Rf reaction. Alpha-particles of 261Rf separated with GARIS and extracted to a chemistry laboratory were successfully identified with a rotating wheel apparatus for α spectrometry. The setting parameters such as the magnetic field of the separator and the gas-jet conditions were optimized. The present results suggest that the GARIS/gas-jet system is a promising approach for exploring new frontiers in SHE chemistry: (i) the background radioactivities of unwanted reaction products are strongly suppressed, (ii) the intense beam is absent in the gas-jet chamber and hence high gas-jet efficiency is achieved, and (iii) the beam-free condition also allows for investigations of new chemical systems.

本文言語English
ホスト出版物のタイトルNuclear Physics Trends - 7th China-Japan Joint Nuclear Physics Symposium
ページ356-362
ページ数7
DOI
出版ステータスPublished - 2010
外部発表はい
イベント7th Japan-China Joint Nuclear Physics Symposium - Tsukuba, Japan
継続期間: 2009 11 92009 11 13

出版物シリーズ

名前AIP Conference Proceedings
1235
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

Other

Other7th Japan-China Joint Nuclear Physics Symposium
CountryJapan
CityTsukuba
Period09/11/909/11/13

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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