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

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

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)335-339
Number of pages5
JournalJournal of Radioanalytical and Nuclear Chemistry
Volume291
Issue number2
DOIs
Publication statusPublished - 2012 Jan 1
Externally publishedYes

Fingerprint

Gamma Rays
Gamma rays
Signal-To-Noise Ratio
Activation analysis
Activation Analysis
Signal to noise ratio
Neutrons
Trace Elements
Trace elements
Nuclear Energy
Chemical elements
Nuclear energy
Limit of Detection
Japan

Keywords

  • Cosmochemical sample
  • Geochemical sample
  • MPGA
  • Multiple prompt gamma-ray analysis
  • PGAA

ASJC Scopus subject areas

  • Analytical Chemistry
  • Nuclear Energy and Engineering
  • Radiology Nuclear Medicine and imaging
  • Pollution
  • Spectroscopy
  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis

Cite this

Application of multiple prompt gamma-ray analysis (MPGA) to geochemical and cosmochemical samples. / Oura, Y.; Watanabe, R.; Ebihara, Mitsuru; Murakami, Y.; Toh, Y.; Kimura, A.; Koizumi, M.; Furutaka, K.; Oshima, M.; Hara, K.; Kin, T.; Nakamura, S.; Harada, H.

In: Journal of Radioanalytical and Nuclear Chemistry, Vol. 291, No. 2, 01.01.2012, p. 335-339.

Research output: Contribution to journalArticle

Oura, Y, Watanabe, R, Ebihara, M, Murakami, Y, Toh, Y, Kimura, A, Koizumi, M, Furutaka, K, Oshima, M, Hara, K, Kin, T, Nakamura, S & Harada, H 2012, 'Application of multiple prompt gamma-ray analysis (MPGA) to geochemical and cosmochemical samples', Journal of Radioanalytical and Nuclear Chemistry, vol. 291, no. 2, pp. 335-339. https://doi.org/10.1007/s10967-011-1292-7
Oura, Y. ; Watanabe, R. ; Ebihara, Mitsuru ; Murakami, Y. ; Toh, Y. ; Kimura, A. ; Koizumi, M. ; Furutaka, K. ; Oshima, M. ; Hara, K. ; Kin, T. ; Nakamura, S. ; Harada, H. / Application of multiple prompt gamma-ray analysis (MPGA) to geochemical and cosmochemical samples. In: Journal of Radioanalytical and Nuclear Chemistry. 2012 ; Vol. 291, No. 2. pp. 335-339.
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