Mass spectrometer with magnetic pole pieces providing the magnetic fields for both the magnetic sector and an ion-type vacuum pump

Patent · Tue Dec 07 04:00:00 EST 1976

OSTI ID:7215740

Sieradski, L M; Giffin, C E; Nier, A O

A mass spectrometer (MS) with unique magnetic pole pieces which provide a homogenous magnetic field across the gap of the MS magnetic sector as well as the magnetic field across an ion-type vacuum pump is disclosed. The pole pieces form the top and bottom sides of a housing. The housing is positioned so that portions of the pole pieces form part of the magnetic sector with the space between them defining the gap region of the magnetic sector, through which an ion beam passes. The pole pieces extend beyond the magnetic sector with the space between them being large enough to accommodate the electrical parts of an ion-type vacuum pump. The pole pieces which provide the magnetic field for the pump, together with the housing form the vacuum pump enclosure or housing.

• Assignee: National Aeronautics and Space Administration
• Patent Number(s): US 3996464
• OSTI ID: 7215740
• Country of Publication: United States
• Language: English

Related Subjects

07 ISOTOPE AND RADIATION SOURCES
070100* -- Physical Isotope Separation
42 ENGINEERING
420700 -- Engineering-- Vacuum Engineering-- (-1987)
BEAMS
DESIGN
ION BEAMS
LABORATORY EQUIPMENT
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC FIELDS
MASS SPECTROMETERS
MEASURING INSTRUMENTS
PUMPS
SPECTROMETERS
VACUUM PUMPS
VACUUM SYSTEMS