Precise Measurement of Helium Isotopes in Groundwater
Journal of science of the Hiroshima University. Series C, Geology and mineralogy Volume 9 Issue 4
Page 603-610
published_at 1993-07-30
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この文献の参照には次のURLをご利用ください : https://doi.org/10.15027/53124
| File | |
| Title ( eng ) |
Precise Measurement of Helium Isotopes in Groundwater
|
| Creator |
SANO Yuji
TAKAHATA Naoto
MAHARA Yasunori
YASUIKE Sinji
|
| Source Title |
Journal of science of the Hiroshima University. Series C, Geology and mineralogy
|
| Volume | 9 |
| Issue | 4 |
| Start Page | 603 |
| End Page | 610 |
| Abstract |
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.
|
| Language |
eng
|
| Resource Type | departmental bulletin paper |
| Publisher |
HIROSHIMA UNIVERSITY
|
| Date of Issued | 1993-07-30 |
| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[ISSN] 0075-4374
[NCID] AA00706718
|
