VACUUM PUMP
Patent
·
OSTI ID:4234664
An ion pump is describod which offers faster pumping speeds. It is believed that the improved action results from the geometry. A magnetic field is provided in the area where ionization by the electron beam takes place so that the electrons travel a spiral path thereby enhancing the ionization. A reflector (re-evaporator) for the getter material circumscribes the evaporator post and serves to break up the particles so that the gettering material is deposited flnely. The surface on which the gas is collected is cooled to improve gettering. This pump provides a speed or 250 1 of Ar per min compared to 9 for an earlier version. (T.R.H.)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-13-021148
- Assignee:
- Wisconsin Alumni Research Foundation
- Patent Number(s):
- US 2888189
- OSTI ID:
- 4234664
- Country of Publication:
- United States
- Language:
- English
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