Encyclopedia

diffusion pump

Also found in: Dictionary, Acronyms, Wikipedia.

diffusion pump

[də′fyü·zhən ‚pəmp]
(engineering)
A vacuum pump in which a stream of heavy molecules, such as mercury vapor, carries gas molecules out of the volume being evacuated; also used for separating isotopes according to weight, the lighter molecules being pumped preferentially by the vapor stream.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
Mentioned in
References in periodicals archive
BOC Edwards has added to its range of high throughput industrial diffusion pumps with the launch of its biggest model yet.
As one of the largest vapour diffusion pumps on the market, the new E035 retains this technology for use on very large chambers allowing highly efficient processing.
High throughput vacuum pump is the biggest yet. (Workshop)
The vacuum pumping system uses cryogenic pumps for the critical hard-vacuum portion of the vacuum pump-down cycle, instead of the more conventional diffusion pumps. This supercold approach eliminates part contamination from oil backstreaming, reduces pumping time during periods of high-shop humidity, and reduces energy consumption for pumping.
EBW struggles to break out of the box
Copyright © 2003-2025 Farlex, Inc Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.