Precise Measurement of Helium Isotopes in Groundwater

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タイトル ( eng )
Precise Measurement of Helium Isotopes in Groundwater
作成者
SANO Yuji
TAKAHATA Naoto
MAHARA Yasunori
YASUIKE Sinji
収録物名
Journal of science of the Hiroshima University. Series C, Geology and mineralogy
9
4
開始ページ 603
終了ページ 610
抄録
In order to estimate the origin and resident time of groundwater, the helium isotope ratio (3He/4He) should be analyzed precisely. We present here experimental details of an analytical system including a helium purification vacuum line, the purification procedure, and the adjustment of a noble gas mass spectrometer. A resolving power of about 550 at the 5% level of the peak height was attained for the complete separation of 3He ions from those of HD and H3. The reproducibility of the helium isotope ratio was about 1%, examined by repeated measurements of an air standard. The accuracy of the ratio was checked by comparing observed data with reports in the literature. The results show that it is possible to apply the present system to geohydrology.
言語
英語
資源タイプ 紀要論文
出版者
HIROSHIMA UNIVERSITY
発行日 1993-07-30
出版タイプ Version of Record(出版社版。早期公開を含む)
アクセス権 オープンアクセス
収録物識別子
[ISSN] 0075-4374
[NCID] AA00706718