Prompt gamma-ray analysis (PGA) of meteorite samples, with emphasis on the determination of Si

Sk A. Latif, Y. Oura, M. Ebihara*, G. W. Kallemeyn, H. Nakahara, C. Yonezawa, T. Matsue, H. Sawahata

*この研究の対応する著者

研究成果: Article査読

28 被引用数 (Scopus)

抄録

Neutron-induced prompt gamma-ray analysis (PGA) was applied to seven meteorite samples (Allende, Zagami, Acfer 209, ALH77005, ALH84001, EET79001 and Neagari). Samples were irradiated in both the thermal neutron and the cold neutron guided beams of JRR-3M at JAERI. Multiple samples of an Allende standard powder were analyzed for Si using two different methods: (1) the comparison method, using a Si standard, and (2) the mono-standard method, using Fe as an internal reference element. The Si concentrations determined by these two methods are in good agreement with literature values. The analytical sensitivity for Si using the cold neutron guided beam is ~14.3x higher than that for the thermal neutron guided beam. Other elements determined (B, Ca, Ti and S) also showed higher sensitivities using the cold neutron beam. The other meteorites studied showed some anomalous B and S values likely due to the effects of terrestrial weathering/contamination.

本文言語English
ページ(範囲)577-580
ページ数4
ジャーナルJournal of Radioanalytical and Nuclear Chemistry
239
3
DOI
出版ステータスPublished - 1999
外部発表はい

ASJC Scopus subject areas

  • 分析化学
  • 原子力エネルギーおよび原子力工学
  • 放射線学、核医学およびイメージング
  • 汚染
  • 分光学
  • 公衆衛生学、環境および労働衛生
  • 健康、毒物学および変異誘発

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