アルファスペクトロメトリによる地質標準試料中の<SUP>234</SUP>U/<SUP>238</SUP>U放射能比の測定

• 金井 豊

  地質調査所

書誌事項

タイトル別名

• Determination of 234U/238U activity ratios in geological reference materials by alpha spectrometry.
• アルファスペクトロメトリによる地質標準試料中の234U/238U放射能比の測定〔英文〕
• アルファスペクトロメトリ ニ ヨル チシツ ヒョウジュン シリョウチュウ ノ

抄録

²³⁴U/²³⁸U activity ratios in geological reference materials are determined using α-spectrometry after a simple chemical separation procedure. This procedure includes a single anion exchange (SO₄-form resin) and uranium can be separated from thorium and other heavy metal cation.<BR>Although the activity ratios of most samples are nearly unity, those of the samples which suffered secondary geological processes such as metasomatism (GnA, GXR-1), sedimentation (SO-1, TS) and weathering, showed radioactive disequilibrium. So, it is important to pay much attention to the nature of the sample in these case for conventional γ-spectrometry.<BR>Uranium contents determined by fluorimetry are in good agreement with the reference values, and a good correlation between counting rates of ²³⁸U and uranium contents is recognized.

収録刊行物

• ＲＡＤＩＯＩＳＯＴＯＰＥＳ

  ＲＡＤＩＯＩＳＯＴＯＰＥＳ 35 (11), 601-604, 1986

  公益社団法人 日本アイソトープ協会

キーワード

• alpha spectrometry
• geological reference material
• uranium
• isotopic ratio

詳細情報

• CRID: 1390001204154078976
• NII論文ID: 130004381877
• NII書誌ID: AN00351589
• DOI: 10.3769/radioisotopes.35.11_601
• COI: 1:CAS:528:DyaL2sXhvVSit70%3D
• ISSN: 18844111
• ISSN: 00338303
• NDL書誌ID: 3102450
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3102450
• Web Site: http://www.jstage.jst.go.jp/article/radioisotopes1952/35/11/35_11_601/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可