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Published November 1935 | Published
Journal Article Open

Superiority of a Knudsen type vacuum gauge for large metal systems with organic vapor pumps; Its design and operation

Abstract

The McLeod, Pirani, Knudsen and ionization gauges have been studied as to their suitability in the operation of large metal vacuum systems with organic vapor pumps now coming into extensive use in modern physics. Advantages and disadvantages of each type based on our experience are critically discussed. The superiority of a gauge on the Knudsen principle for this work is stressed and we present a new design and a simpler mode of operation of such a gauge together with a full discussion of its construction, calibration and characteristics.

Additional Information

© 1935 American Institute of Physics. We take pleasure in acknowledging our grateful indebtedness to Dr. Leon L. Watters of New York City for the funds given as a memorial to his wife, Frances H. Watters, which have made possible the entire program of research of which this investigation forms a part.

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August 19, 2023
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