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367. Measurement of gas evolution and absorption from materials used in vacuum tubes

Publisher
Elsevier Science
Year
1961
Tongue
English
Weight
106 KB
Volume
11
Category
Article
ISSN
0042-207X

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## Abstract Accumulative flow of gas into a vacuum tube has been studied. An analytical model, based on Fick's second law and assuming a constant diffusion coefficient, has been developed to describe the pressure response as a function of time and tube axial position for a constant gas flow rate in