AN ULTRA-HIGH VACUUM SYSTEM USING AN OIL-DIFFUSION PUMP WITH A NON- REFRIGERATED ISOLATION TRAP
Journal Article
·
· Experientia (Switzerland)
Ultrahigh vacuums with a basic pressure of less than 5 x l0/sup -10/ mm Hg were routinely produced and maintained for several months by means of an oil diffusion pump. An isolation trap charged with activated alumina of large cross section is placed between pump and glass system. The back flow of oil vapors into the experimental apparatus was completely prevented without cooling. (tr- auth)
- Research Organization:
- Stanford Research Inst., Menlo Park, Calif.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-15-002724
- OSTI ID:
- 4130284
- Journal Information:
- Experientia (Switzerland), Journal Name: Experientia (Switzerland) Vol. Vol: 16; ISSN EXPEA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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