Evacuating Photographic Materials for Use in Electron Optical Apparatus

Vacuum systems containing photographic materials may be most rapidly pumped if the materials have been desiccated previously. The primary factors influencing pumping time are the degree of preliminary desiccation and the amount of resorption of water vapor during the transfer of the material from th...

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Bibliographic Details
Published in:Review of scientific instruments 1954-05, Vol.25 (5), p.477-479
Main Author: Reisner, John H.
Format: Article
Language:English
Online Access:Get full text
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Summary:Vacuum systems containing photographic materials may be most rapidly pumped if the materials have been desiccated previously. The primary factors influencing pumping time are the degree of preliminary desiccation and the amount of resorption of water vapor during the transfer of the material from the desiccator to the vacuum apparatus. Desiccation may be achieved by the use of a drying agent, evacuation, or the elevation of temperature. Resorption of water vapor may be minimized by rapid transfer of materials in tight containers from the desiccating means to the vacuum apparatus.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.1771104