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- W2034228103 abstract "Isotopic ratios of the order of 10−6 of various samples of helium have been determined using a double focusing mass spectrometer. To obtain an accurate count of 3He+ ions, reproducible results may be obtained from the separate collection of the counts of the two isotopes and by combining the results. The reproducibility attained with atmospheric helium gave a spread of less than 0.6%. Possible applications of this technique are discussed. A l'aide d'un spectromètre de masse à double focalisation, le rapport isotopique de l'ordre de 10−6 de divers héliums a été déterminé. Pour obtenir des mesures reproductibles, on utilise la technique de comptage pour les ions 3He+, la double collection des deux isotopes et un mélange de référence. Pour l'hélium atmosphérique, la reproductibilité de la mesure atteint 0.6%. On envisage certaines possibilités offertes par l'appareil." @default.
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- W2034228103 date "1972-09-01" @default.
- W2034228103 modified "2023-09-25" @default.
- W2034228103 title "Mesure du rapport isotopique de l'hélium" @default.
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- W2034228103 doi "https://doi.org/10.1016/0020-7381(72)80021-4" @default.
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