Abstract
WHILE engaged in an investigation to determine the number of free electrons in metals, we have noticed a change in resistance when β particles and γ rays from radium are allowed to impinge on an insulated thin plate of lead. We have further noticed that the change is not permanent and that the resistance varies with time, returning to its original value.
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PRASAD, K., BASU, S. Change of Resistance of Lead by the Action of Radium. Nature 122, 610 (1928). https://doi.org/10.1038/122610e0
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DOI: https://doi.org/10.1038/122610e0
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