Development of a gas-chromatograph apparatus coupled to a recoil separator and chemistry of element 112

2010 Fiscal Year Final Research Report

• Project/Area Number: 20750053
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Inorganic chemistry
• Research Institution: The Institute of Physical and Chemical Research
• Principal Investigator: HABA Hiromitsu The Institute of Physical and Chemical Research, 森田超重元素研究室, 専任研究員 (60360624)
• Project Period (FY): 2008 – 2010
• Keywords: 超重元素 / 重イオン加速器 / 気体充填型反跳核分離装置 / 単一原子化学 / 相対論効果

Research Abstract

A novel elemental analysis system for superheavy elements (SHEs, atomic numbers Z≧104) has been developed by directly coupling a cryogenic gas-chromatograph apparatus to the gas-filled recoil ion separator (GARIS) at the RIKEN linear accelerator facility. The productions and decay properties of ^<261>Rf (element 104, rutherfordium) and ^<265>Sg (element 106, seaborgium) were investigated for the future SHE chemistry using the GARIS gas-jet system and a rotating wheel system for α-spectrometry.

Research Products

• [Journal Article] Production and decay properties of the 1.9-s isomeric state in ^<261>Rf (2011)
  • Author(s): H.Haba, D.Kaji, H.Kikunaga, Y.Kudou, K.Morimoto, K.Morita, K.Ozeki, T.Sumita, A.Yoneda, Y.Kasamatsu, Y.Komori, K.Ooe, A.Shinohara
  • Journal Title: Phys.Rev.C 83 Pages: 034602-1-034602-7
  • Peer Reviewed
• [Journal Article] Production of an isomeric state of 261Rf by the ^<248>Cm(180,5n)^<261>Rf reaction, RIKEN Accel. (2010)
  • Author(s): H.Haba, D.Kaji, Y.Kasamatsu, H.Kikunaga, Y.Komori, Y.Kudou, K.Morimoto, K.Morita, K.Ooe, K.Ozeki, A.Shinohara, T.Sumita, A.Yoneda
  • Journal Title: Prog.Rep 43 Pages: 265
• [Journal Article] Superheavy element nuclear chemistry at RIKEN (2010)
  • Author(s): H.Haba, D.Kaji, Y.Kasamatsu, H.Kikunaga, Y.Komori, Y.Kudou, K.Morimoto, K.Morita, K.Ooe, K.Ozeki, N.Sato, A.Shinohara, A.Toyoshima, A.Yokoyama, A.Yoneda, T.Yoshimura,
  • Journal Title: AIP Conf.Proc. 1235 Pages: 356-362
• [Journal Article] RIKEN Gas-filled recoil ion separator GARIS as a promising interface for superheavy element chemistry .Production of element 104, ^<261>Rf, using the GARIS/gas-jet system. (2009)
  • Author(s): H.Haba, D.Kaji, Y.Komori, Y.Kudou, K.Morimoto, K.Morita, K.Ooe, K.Ozeki, N.Sato, A.Shinohara, A.Yoneda,
  • Journal Title: Chem.Lett. 38 Pages: 426-427
  • Peer Reviewed
• [Journal Article] Chloride complexation of Zr and Hf in HCl investigated by extended X-ray absorption fine structure spectroscopy .Toward characterization of chloride complexation of element 104, rutherfordium (Rf)- (2009)
  • Author(s): H.Haba, K.Akiyama, K.Tsukada, M.Asai, A.Toyoshima, T.Yaita, M.Hirata, K.Sueki, Y.Nagame
  • Journal Title: Bull.Chem.Soc.Jpn. 82 Pages: 698-703
  • Peer Reviewed
• [Journal Article] Production of ^<261>Rf for chemical studies using the gas-jet transport system coupled to GARIS, RIKEN Accel. (2009)
  • Author(s): H.Haba, D.Kaji, Y.Komori, Y.Kudou, K.Morimoto, K.Morita, K.Ooe, K.Ozeki, N.Sato, A.Shinohara, A.Yoneda
  • Journal Title: Prog.Rep. 42 Pages: 266
• [Journal Article] Performance of the gas-jet transport system coupled to the RIKEN gas-filled recoil ion separator GARIS for the 238U(22Ne,5n)255No reaction (2008)
  • Author(s): H.Haba, H.Kikunaga, D.Kaji, T.Akiyama, K.Morimoto, K.Morita, T.Nanri, K.Ooe, N.Sato, A.Shinohara, D.Suzuki, T.Takabe, I.Yamazaki, A.Yokoyama, A.Yoneda
  • Journal Title: J.Nucl.Radiochem.Sci. 9 Pages: 27-31
  • Peer Reviewed
• [Journal Article] Production of 255No via the 238U(22Ne,5n)255No reaction using the gas-jet transport system coupled to GARIS, RIKEN Accel. (2008)
  • Author(s): H.Haba, T.Akiyama, D.Kaji, H.Kikunaga, K.Morimoto, K.Morita, T.Nanri, K.Ooe, N.Sato, A.Shinohara, D.Suzuki, T.Takabe, I.Yamazaki, A.Yokoyama, A.Yoneda
  • Journal Title: Prog.Rep. 41 Pages: xii
• [Journal Article] Production and decay properties of ^<265>Sg, RIKEN Accel.
  • Author(s): H.Haba, D.Kaji, Y.Kasamatsu, H.Kikunaga, Y.Komori, H.Kudo, Y.Kudou, K.Morimoto, K.Morita, K.Ooe,K.Ozeki, R.Sakai, N.Sato, A.Shinohara, T.Sumita, K.Tsukada, A.Yoneda
  • Journal Title: Prog.Rep 44(in press)
• [Presentation] Production of ^<265>Sg for chemical studies using the gas-jet transport system coupled to the RIKEN gas-filled recoil ion separator (2011)
  • Author(s): H.Haba, D.Kaji, Y.Kasamatsu, H.Kikunaga, Y.Komori, H.Kudo, Y.Kudou, K.Morimoto, K.Morita, K.Ooe, K.Ozeki, R.Sakai, N.Sato, A.Shinohara, T.Sumita, K.Tsukada, A.Yoneda
  • Organizer: The 4^<th> International Conference on the Chemistry and Physics of the Transactinide Elements
  • Place of Presentation: Sochi, Russia(発表予定)
  • Year and Date: 20110905-20110911
• [Presentation] 新元素の化学-気体充填型反跳核分離装置を用いた新展開- (2011)
  • Author(s): 羽場宏光
  • Organizer: 2011年秋季第72回応用物理学会学術講演会
  • Place of Presentation: 山形市(発表予定)
  • Year and Date: 2011-08-29
• [Presentation] SHE researches at RIKEN, 9th Workshop on Recoil Separator for Superheavy Element Chemistry (TASCA10) (2010)
  • Author(s): H.Haba
  • Organizer: 18 Nov.
  • Place of Presentation: Darmstadt, Germany
  • Year and Date: 20100000
• [Presentation] Superheavy element nuclear chemistry at RIKEN, 2010 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2010) (2010)
  • Author(s): H.Haba, D.Kaji, Y.Kasamatsu, H.Kikunaga, Y.Komori, H.Kudo, Y.Kudou, K.Morimoto, K.Morita, Y.Nagame, K.Ooe, K.Ozeki, N.Sato, A.Shinohara, T.Sumita, A.Toyoshima, K.Tsukada, A.Yokoyama, A.Yoneda,T.Yoshimura
  • Place of Presentation: Hawaii, USA
  • Year and Date: 2010-12-18
• [Presentation] 超重元素合成用アクチノイド標的の研究開発 (2010)
  • Author(s): 羽場宏光
  • Organizer: 平成22年度大洗研究会(アクチノイド分野)
  • Place of Presentation: 中央区京橋
  • Year and Date: 2010-11-30
• [Presentation] ^<248>Cm(^<22>Ne,5n)^<265>Sg反応による^<265>Sgの合成 (2010)
  • Author(s): 羽場宏光, 大江一弘, 大関和貴, 笠松良崇, 加治大哉, 菊永英寿, 工藤久昭, 工藤祐生, 小森有希子, 佐藤 望, 篠原厚, 住田貴之, 塚田和明, 森田浩介, 森本幸司, 米田晃
  • Organizer: 2010日本放射化学会年会・第54回放射化学討論会
  • Place of Presentation: 吹田市
  • Year and Date: 2010-09-27
• [Presentation] Present Status of RIKEN Facilities for SHE chemistry .Facility information for beam time proposals- (2010)
  • Author(s): H.Haba
  • Organizer: RIKEN Workshop on Superheavy Element Chemistry 2010,
  • Place of Presentation: Wako, Japan
  • Year and Date: 2010-02-02
• [Presentation] Superheavy element nuclear chemistry at RIKEN, The 7th Japan-China Joint Nuclear Physics Symposium (2009)
  • Author(s): H.Haba
  • Organizer: 13 Nov.
  • Place of Presentation: Tsukuba, Japan
  • Year and Date: 20090000
• [Presentation] 新元素の化学-反跳核分離装置を用いた新たな展開- (2009)
  • Author(s): 羽場宏光
  • Organizer: 平成21年度大洗研究会
  • Place of Presentation: 千代田区丸の内
  • Year and Date: 2009-12-07
• [Presentation] Present status and perspectives of superheavy element chemistry at RIKEN, Asia-Pacific Symposium on Radiochemistry '09 (APSORC '09) (2009)
  • Author(s): H.Haba, D.Kaji, Y.Kasamatsu, H.Kikunaga, Y.Komori, H.Kudo, Y.Kudou, K.Morimoto, K.Morita, Y.Nagame, K.Ooe, K.Ozeki, N.Sato, A.Shinohara, T.Sumita, A.Toyoshima, K.Tsukada, A.Yokoyama, A.Yoneda, T.Yoshimura
  • Place of Presentation: Napa, USA
  • Year and Date: 2009-12-01
• [Presentation] RIKEN GARIS as a promising interface for superheavy element chemistry .Production of ^<261>Rf using the GARIS/gas-jet system., Seventh Workshop on the Chemistry of the Heaviest Elements (2009)
  • Author(s): H.Haba, D.Kaji, Y.Kasamatsu, Y.Komori, Y.Kudou, K.Morimoto, K.Morita, K.Ooe, K.Ozeki, N.Sato, A.Shinohara, T.Sumita, K.Tsukada, A.Yoneda
  • Place of Presentation: Mainz, Germany
  • Year and Date: 2009-10-13
• [Presentation] 超重元素の化学-反跳核分離装置を用いた新たな展開- (2009)
  • Author(s): 羽場宏光, 大江一弘, 大関和貴, 笠松良崇, 加治大哉, 工藤祐生, 小森有希子, 佐藤望, 篠原厚, 森田浩介, 森本幸司, 米田晃
  • Organizer: 2009日本放射化学会年会・第53回放射化学討論会
  • Place of Presentation: 世田谷区桜上水
  • Year and Date: 2009-09-30
• [Presentation] 超重元素の化学-反跳核分離装置を用いた新たな展開 (2009)
  • Author(s): 羽場宏光
  • Organizer: 2009日本放射化学会年会・第53回放射化学討論会
  • Place of Presentation: 世田谷区桜上水
  • Year and Date: 2009-09-29
• [Presentation] 国外の超重元素化学研究の現状-TASCA08報告- (2008)
  • Author(s): 羽場宏光
  • Organizer: 理研超重元素化学ワークショップ2008
  • Place of Presentation: 和光
  • Year and Date: 2008-11-12
• [Presentation] 超重元素化学研究に利用できる理研の実験設備, (2008)
  • Author(s): 羽場宏光
  • Organizer: 理研超重元素化学ワークショップ2008
  • Place of Presentation: 和光
  • Year and Date: 2008-11-12
• [Presentation] RIKEN GARIS for superheavy element chemistry (2008)
  • Author(s): H.Haba
  • Organizer: 7th Workshop on Recoil Separator for Superheavy Element Chemistry (TASCA08)
  • Place of Presentation: Darmstadt, Germany
  • Year and Date: 2008-10-31
• [Book] Tracer technique, In Handbook of Nuclear Chemistry (2nd ed.),Vol.3,Springer (2010)
  • Author(s): H.Haba, S.Motomura, S.Kamino, S.Enomoto,
  • Total Pages: 1761-1792
  • Publisher: edited by A. ertes, S.Nagy, Z.Klencsar, R.G.Lovas, and F.Roesch
• [Book] イラスト図解元素 (2010)
  • Author(s): 羽場宏光(監修)
  • Total Pages: 288
  • Publisher: 日東書院
• [Remarks] 新聞発表羽場宏光,短寿命・微量元素の化学的性質を解く,日刊工業新聞,19面,2011年4月26日