Abstract
The paper describes the use of active charcoal and a 13X molecular sieve at 78°K to pump all-glass apparatuses with a small volume (up to 5000 cm3) from atmospheric pressure to a pressure region of 10−2 mm Hg. At this pressure an outgassed second pumping stage (also sorbent) permits pressures from 10−6 to 10−7 mm Hg to be obtained. Active charcoal was also used as a two-stage fore pump (p=10−6 mm Hg) for a one-stage mercury diffusion pump and in this system pressures of 5 to 10×10−10 mm Hg were achieved.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
