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Cryopumping by three arrays at pressures of 10( -3) to 10( -8) mm Hg by Barnes, Carlisle B., Jr., is a nonfiction available to read on EtoBox.

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Three arrangements of surfaces cooled to 21.5 K were investigated theoretically and tested to determine condensing rates and resultant vacuum pumping performance of the arrays at pressures of 1/1000 to 10 to the -8 mm Hg. These are identified as unshielded, flat shielded, and angled fin arrays. Theoretical performance and experimental performances were correlated. Measurement of vacua below 1/10,000 mm Hg. were shown to be of uncertain accuracy

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Author

Barnes, Carlisle B., Jr.,

Publisher

Aeronautical Systems Division, Air Force Systems Command, United States Air Force, 1961.

Published

1961

Language

EN

Category

nonfiction