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Points from Foregoing Letters

    Naturevolume 135page918 (1935) | Download Citation



    EXPERIMENTS with silver bombarded by neutrons and surrounded by air, water and liquid hydrogen, lead Prof. J. C. McLennan, Prof. E. F. Burton and Mr. A. Pitt to suggest that the radioactivity induced in silver is probably not affected by changes in temperature. Dr. P. B. Moon and Mr. J. R. Tillman find, on the other hand, that the radioactivity of silver, rhodium and iodine bombarded by neutrons which have traversed paraffin wax cooled with liquid oxygen, is appreciably different from the radioactivity obtained at ordinary temperature, being greater in the case of silver and rhodium and smaller in the case of hydrogen.

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