Abstract
Helium produced from boron by neutron bombardment has been purified, observed spectroscopically, and measured by Prof. F. A. Paneth and H. Loleit. This seems to be the first case where an artificially produced element has been detected spectroscopically and measured by other than radioactive methods.
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Points from Foregoing Letters. Nature 136, 956 (1935). https://doi.org/10.1038/136956c0
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DOI: https://doi.org/10.1038/136956c0