Letter | Published:

Spontaneous Fluctuations of Current in a Photo-Electric Cell

Nature volume 159, pages 608609 (03 May 1947) | Download Citation

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Abstract

DATA on the fundamental electrical Brownian movement arising in a high-vacuum photo-cell appear to us to be rather scanty. In the saturated condition, on the plausible assumption that all the emitted electrons proceed to the anode randomly and independently, one might expect the familiar Schottky formula1 to be obeyed by the current fluctuations, namely: where i is the instantaneous current, I is the mean current, Î"f the band-width of the measuring instrument.

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References

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Author information

Affiliations

  1. Physics Department, Birkbeck College, University of London.

    • R. FÜRTH
  2. Clarendon Laboratory, University of Oxford. Feb. 25.

    • D. K. C. MACDONALD

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DOI

https://doi.org/10.1038/159608a0

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