Application of multiple prompt gamma-ray analysis (MPGA) to geochemical and cosmochemical samples

Y. Oura, R. Watanabe, M. Ebihara, Y. Murakami, Y. Toh, A. Kimura, M. Koizumi, K. Furutaka, M. Oshima, K. Hara, T. Kin, S. Nakamura, H. Harada

研究成果: ジャーナルへの寄稿学術誌査読

4 被引用数 (Scopus)


A prompt gamma-ray analysis system using multiple detection method (MPGA system) was constructed at the neutron guide hall of the JRR-3M reactor of the Japan Atomic Energy Agency. We applied MPGA method to geochemical and cosmochemical samples to evaluate its analytical performance on signal to noise (S/N) ratio, sensitivity, and detection limit. The S/N ratio measured by MPGA system was larger than that by normal prompt gamma ray activation analysis (PGAA) at JRR-3M. For some elements, the S/N ratio was improved more than ten times. Several elements that are not detected by PGAA were detected by MPGA. At the present time, concentrations of major elements and trace elements with high neutron capture cross section in geochemical and cosmochemical samples were determined accurately by the MPGA system installed at JRR-3M. It is expected that it will determine a lot of trace elements after appropriate adjustments and modifications.

ジャーナルJournal of Radioanalytical and Nuclear Chemistry
出版ステータス出版済み - 5月 2012

!!!All Science Journal Classification (ASJC) codes

  • 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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