Photoelectrons and Negative Ions

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Abstract

PROF. WELLISH'S recent communication1 calls for some comment, as he states that the experiments with photoelectric currents in dry air which he describes show that over the range of pressures 7 mm. to 760 mm. “the great majority of negative ions are formed in the vicinity of the electrode at which the electrons originate”, a conclusion which is not in agreement with many other experiments made in Sydney and elsewhere.

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  1. 1

    NATURE, 128, 547, Sept. 26, 1931.

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BAILEY, V. Photoelectrons and Negative Ions. Nature 129, 166–167 (1932) doi:10.1038/129166b0

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