Development of the Fast and Ultrasensitive Determination Method for Strontium-90 by Accelerator Mass Spectrometry

DOI

Bibliographic Information

Other Title
  • 加速器質量分析法によるストロンチウム90の迅速かつ高感度な検出手法の開発

Abstract

<p>90Sr is an important radioactive nuclide for environmental impact assessment on atomic accidents or nuclear bomb tests. However, it is difficult to measure 90Sr rapidly by the usual method. 90Sr-AMS has been developed with the 6 MV tandem accelerator mass spectrometry system at the University of Tsukuba. SrF3- could be extracted about 400 nA from SrF2 samples mixed with PbF2. 90Sr8+ with an energy of 51.8 MeV was detected by the gas ionization detector. The detection limit of 90Sr isotopic ratio was achieved about 6 × 10-13 (~3 mBq) by AMS.</p>

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Details 詳細情報について

  • CRID
    1390564238048221184
  • NII Article ID
    130007520629
  • DOI
    10.14862/geochemproc.65.0_229
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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