Abstract
IONIUM decays with the emission of α-particles leaving the final nucleus 22688Ra at various levels of excitation known1 to lie at 70 keV., 200 keV. and 270 keV. above its ground-state. Conversion electrons emitted from radium nuclei have been identified as due, for the most part, to L-conversion of 70-keV. γ-ray2.
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ROY, R., GOES, M. Angular Correlation of α-Particle and Conversion-Electron from the Decay of Ionium. Nature 172, 360–361 (1953). https://doi.org/10.1038/172360a0
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DOI: https://doi.org/10.1038/172360a0
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