Abstract
WHEN beryllium is bombarded with deuterons, a group of protons is observed, with a range of about 26 cm., which is attributed to the reaction Be9 (H2, H1) Be10. It has been assumed that the product of this reaction is the species which McMillan1 found in a beryllium target after prolonged bombardment. Recently, Pollard2 has reported that the activity in question decays with a period of 350 years. This figure was obtained from the number of protons emitted (which indicates the number of beryllium nuclei formed) and the number of electrons from the decaying substance. Further, the latter author found that the maximum electron energy was about 0·75 Mv.
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References
Phys. Rev., 49, 875 (1936).
Phys. Rev. 57, 241 (1940).
See summary Jordan, P., Ergeb. exakt. Naturw., 16, 90.
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BRETSCHER, E. Radioactivity of Be10. Nature 146, 94–95 (1940). https://doi.org/10.1038/146094b0
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DOI: https://doi.org/10.1038/146094b0
