Abstract
OWING to an exceptionally favourable setting of the apparatus for generating accelerated anode rays, I have now been able to settle some doubtful points and obtain results with several more elements. Anode rays of iron have been obtained strong enough to demonstrate beyond doubt the occurrence of its light isotope 54 previously suspected. The intensity of this line relative to the predominant 56 is estimated roughly as 1 to 20. The most probable value of mass for the latter has already been given as 55.94, so that the results of the mass-spectrograph are now in excellent agreement with the figure 55.84 obtained by the most trustworthy chemical methods.
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ASTON, F. Recent Results obtained with the Mass-Spectrograph. Nature 113, 856–857 (1924). https://doi.org/10.1038/113856a0
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DOI: https://doi.org/10.1038/113856a0
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