Abstract
IN order to verify that the gamma-rays from thulium-170 reported1, in addition to the well-established transition of ∼ 83 keV., were not, in fact, Bremsstrahlung2, the secondary electron spectrum from a source of 5–10-millicuries strength has been examined in the short-lens beta-ray spectrometer using high transmission (low resolving power).
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References
Grant, P. J., and Richmond, R., Proc. Phys. Soc., A, 62, 573 (1949).
Graham, R. L., and Tomlin, D. H., Nature, 164, 278 (1949).
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GRANT, P. Gamma-Rays from Thulium-170. Nature 165, 1018 (1950). https://doi.org/10.1038/1651018a0
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DOI: https://doi.org/10.1038/1651018a0
