高エネルギー陽子マイクロビームによる鉱物中の水素定量分析法の開発  [in Japanese] Development of a method for the quantitative analysis of hydrogen in minerals with a high-energy proton microbeam  [in Japanese]

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Author(s)

    • 古野 興平 FURUNO Kohei
    • 筑波大学物理学系・加速器センター Institute of Physics and Tandem Accelerator Center, University of Tsukuba
    • 笹 公和 SASA Kimikazu
    • 筑波大学物理学系・加速器センター Institute of Physics and Tandem Accelerator Center, University of Tsukuba
    • 大和 良広 YAMATO Yoshihiro
    • 筑波大学人文・数理等教育研究支援室・加速器センター Academic Service Office for Humanities and Natural Sciences, Tandem Accelerator Center, University of Tsukuba
    • 石井 聰 ISHII Satoshi
    • 筑波大学人文・数理等教育研究支援室・加速器センター Academic Service Office for Humanities and Natural Sciences, Tandem Accelerator Center, University of Tsukuba
    • 大島 弘行 OHSHIMA Hiroyuki
    • 筑波大学人文・数理等教育研究支援室・加速器センター Academic Service Office for Humanities and Natural Sciences, Tandem Accelerator Center, University of Tsukuba

Abstract

This report describes our recent development that mainly aims at the quantitative determination of hydrogen concentration in melt inclusions confined in minerals. The method is based on the proton-proton elastic scattering at 20 MeV. Since the stopping power of protons at 20 MeV is very small in materials as silicates, protons pass through a 200 μm thick sample without appreciable energy loss. It is feasible, therefore, to carry out non-destructive hydrogen analysis of melt inclusions with sizes in the range from a few tens to approximately 200 micrometers. Besides the depth profile of hydrogen, a map of the three-dimensional hydrogen concentration is observable using a scanning microbeam. An example is presented on a melt inclusion in quartz from pyroclastic rocks collected at Enda, Zaoh-machi, Miyagi Prefecture, Japan.

Journal

  • Japanese Magazine of Mineralogical and Petrological Sciences

    Japanese Magazine of Mineralogical and Petrological Sciences 33(2), 51-61, 2004-03-30

    Japan Association of Mineralogical Sciences

References:  20

Codes

  • NII Article ID (NAID)
    10012362172
  • NII NACSIS-CAT ID (NCID)
    AA1146088X
  • Text Lang
    JPN
  • Article Type
    REV
  • ISSN
    1345630X
  • NDL Article ID
    6978777
  • NDL Source Classification
    ZM46(科学技術--地球科学--岩石・鉱物・鉱床)
  • NDL Call No.
    Z15-117
  • Data Source
    CJP  NDL  J-STAGE 
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