Journal of Applied Spectroscopy

, Volume 4, Issue 2, pp 82–86 | Cite as

The sensitivity of photoemulsions and its relation to the sensitivity of a photocathode

  • G. M. Malyshev
  • G. T. Razdobarin


The sensitivity limitations arising from fluctuations in photoemulsions are discussed and the conditions under which the limitations reach a minimum are described. The photoemulsion area which corresponds to a minimum number of quanta at a certain registration accuracy is derived. Estimates are given which indicate how the required light sum increases when the area exceeds the optimum value. The sensitivities of photoemulsions and photocathodes are compared. It could be shown that the photoemulsion sensitivity deteriorates to a certain extent when the exposure range increases. A selection of the exposure working region is suggested which, in contrast to the linear portion of the characteristic curve, permits measuments with a smaller light input and in a wider exposure range.


Analytical Chemistry Molecular Structure Characteristic Curve Linear Portion Sensitivity Limitation 
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Copyright information

© The Faraday Press, Inc. 1968

Authors and Affiliations

  • G. M. Malyshev
  • G. T. Razdobarin

There are no affiliations available

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