Effect of Exposure Temperature on Over-All Efficiency of Autoradiographs and on Fogging of Emulsion

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Abstract
Systematic investigations of the influence of various temperatures of exposure on the autoradiographic efficiency and on the rate of fogging of Kodak AR 10 stripping film were carried out. The oxygen content and humidity of the exposed autoradiographs as well as the time of exposure were constant. Exposure of autoradiographs or storage of film at room temperature caused an increase of overall autoradiographic efficiency by approximately 40%, but although the rate of film fogging was also increased, it did not exceed the safe values of background. Both autoradiographic efficiency and rate of fogging were not altered significantly when a temperature of 4 C or -18 C for exposure was used. Therefore, room temperature of exposure is recommended for ordinary autoradiography. For a special autoradiographic technic when low temperature of exposure has to be used, the temperature -18 C may be safely applied without significant impairment of autoradiographic efficiency.

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