Abstract
PROFS. F, A. PANETH and G. P. Thomson state that during the bombardment of heavy hydrogen with positive rays (positively charged hydrogen atoms) they had obtained, like Harnwell, Smyth and Urry, measurable amounts of helium; they consider, however, that this is not helium of mass 3 resulting from atomic transmutation, but helium gas adsorbed on the walls of the glass discharge vessel, and afterwards released by the hydrogen.
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Points from Foregoing Letters. Nature 136, 341 (1935). https://doi.org/10.1038/136341a0
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DOI: https://doi.org/10.1038/136341a0