Abstract

SUMMARYA report is presented of light‐microscopic radioautography over araldite sections using either a stripping film (AR10) or a nuclear dipping emulsion (G5) as detector. Except for anomalies at the beginning of the exposure, both emulsions have similar sensitivities, resolutions and latent image‐fading characteristics. The stripping film technique has some disadvantages including the necessity of staining the tissue before application of the film. A short list of familiar tissue stains and their chemographic properties is presented. The self absorption of araldite sections to the electron emitted from a tritium atom is measured and its significance for reproducible results commented upon.

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