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2012 Fiscal Year Final Research Report

Material science to investigate a new process of diamond formation approached by nano-beam technology

Research Project

  • PDF
Project/Area Number 23654192
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Geochemistry/Astrochemistry
Research InstitutionHiroshima University

Principal Investigator

HIDAKA Hiroshi  広島大学, 大学院・理学研究科, 教授 (10208770)

Co-Investigator(Renkei-kenkyūsha) ANDO Jun-ichi  広島大学, 大学院・理学研究科, 准教授 (50291480)
Project Period (FY) 2011 – 2012
Keywords天然原子炉 / ダイヤモンド
Research Abstract

In order to investigate the new process of diamond formation induced from the irradiation of high energy particles supported by Kaminsky’s hypothesis, chemical separates from natural organic matters in the Oklo natural nuclear reactors were used in this study. The chemical separates were further purified, and used for Raman spectroscopic observations. Raman spectra of some particles sized 50-100 μm diametersshow a clear peak at 1332 cm^<-1>, suggesting the existence of nano-sized diamonds in the particles. TEM (Transmission Electron Microscope) observation of the particles are now in progress.

  • Research Products

    (10 results)

All 2013 2012 2011

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (6 results) Book (1 results)

  • [Journal Article] Radioactive Cs capture in the early solar system2013

    • Author(s)
      H. Hidaka, and S. Yoneda
    • Journal Title

      Sci. Rep

      Volume: 3 Pages: 1330(1-5)

    • DOI

      DOI:10.1038/srep01330

    • Peer Reviewed
  • [Journal Article] Heterogeneous isotopic anomalies of Sm and Gd in the Norton County meteorite: Evidence for irradiation from the active early Sun2012

    • Author(s)
      H. Hidaka, and S. Yoneda
    • Journal Title

      Astrophys. J

      Volume: 746 Pages: 132(1-8)

    • DOI

      DOI:10.1088/0004-637X/746/2/132

    • Peer Reviewed
  • [Journal Article] オクロ天然原子炉についての基礎知識と最近の同位体研究の進歩2012

    • Author(s)
      日高洋
    • Journal Title

      RADIOISOTOPES

      Volume: 61 Pages: 331-341

    • Peer Reviewed
  • [Presentation] 惑星物質と宇宙線の相互作用:隕石の同位体研究の見地から2012

    • Author(s)
      日高洋
    • Organizer
      複合的アプローチで探る宇宙の化学進化研究集会
    • Place of Presentation
      伊豆
    • Year and Date
      20121026-28
  • [Presentation] Heterogeneous neutron capture record of the Norton County enstatite achondrite2012

    • Author(s)
      H. Hidaka and S. Yoneda
    • Organizer
      75 Annual Meteoritical Society Meeting
    • Place of Presentation
      Cairns, Australia
    • Year and Date
      20120812-17
  • [Presentation] In-situ Sm isotopic analysis of neutron-irradiated materials2012

    • Author(s)
      H. Hidaka
    • Organizer
      6th International SHRIMP Workshop
    • Place of Presentation
      Brisbane, Australia
    • Year and Date
      20120801-04
  • [Presentation] Large and heterogeneous isotopic anomalies of Sm and Gd in the Norton County meteorite2012

    • Author(s)
      H. Hidaka and S. Yoneda
    • Organizer
      2012 Goldschmidt Conference
    • Place of Presentation
      Montreal, Canada
    • Year and Date
      20120624-29
  • [Presentation] 然原子炉が示唆する地球環境中における核分裂生成核種の長期的挙動2011

    • Author(s)
      日高洋
    • Organizer
      第47回 X 線分析討論会
    • Place of Presentation
      福岡
    • Year and Date
      2011-10-28
  • [Presentation] 放射性セシウムの長期的挙動:オクロ天然原子炉の例2011

    • Author(s)
      日高洋
    • Organizer
      2011 年度日本地球化学会
    • Place of Presentation
      札幌
    • Year and Date
      2011-09-14
  • [Book] 地球と宇宙の化学事典2012

    • Author(s)
      日高 洋
    • Total Pages
      472
    • Publisher
      朝倉書店

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Published: 2014-09-25  

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