Author:
Boyd A. W.,Brown F.,Lounsbury M.
Abstract
Using a Nier-type mass spectrometer, the isotopic composition of chlorine gas obtained from natural potassium chloride has been measured to be 75.529 ± 0.016 atom per cent Cl35and 24.471 ± 0.016 atom per cent Cl37, corresponding to a Cl35/Cl37atom ratio of 3.0865 ± 0.0027. By comparison of this result with that for chlorine gas from potassium chloride irradiated for 14 months in a high flux position of the NRX reactor, the neutron capture cross-section of Cl36has been determined to be 90 ± 25 barns. This value has been calculated on the assumption that only (n, γ) reactions were significant in changing the isotopic composition of the chlorine.
Publisher
Canadian Science Publishing
Subject
General Physics and Astronomy
Cited by
19 articles.
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