Abstract
As the β particles emitted by the radio-active elements are analogous to the α particles, inasmuch that they may be considered as parts of the disintegrated atom, and not in any sense true rays, I have been conducting some experiments with the view of ascertaining if, in any circumstances, their action upon fluorescent screens caused recognisable scintillations. It will be obvious that if the radium used be placed too near the screen, the effects of the combined β and γ rays will produce a fluorescence sufficiently vivid to mask any scintillations due to the individual electrons which compose the β stream. In order to diffuse this action and allow the β particles to separate to such a degree that the flashes produced shall not overlap, recourse may be had to three methods:—
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R., C. Scintillations produced by the Electronic “β-Rays” emitted by Radium. Nature 73, 341 (1906). https://doi.org/10.1038/073341a0
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DOI: https://doi.org/10.1038/073341a0
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