Split-field interface

Details Split-field interface Split-field interface

1995-11-22

1998-04-28

Anderson, Bruce

Radiant energy

Ionic separation or analysis

Ion beam pulsing means with detector synchronizing means

250281, B01D 5944, H01J 4900

Patent

active

057447977

ABSTRACT:
A method and apparatus to accelerate ions using two or more electric fields which are spatially separated. Electric fields are used to accelerate ions. With electric fields of the proper strength and geometry, ions may be space focused so that ions of a given mass-to-charge arrive at a virtual object plane simultaneously. According to the present invention, a split field interface, in the form of a set of biased electrodes, is used to produce and adjust the position of a virtual object plane.

REFERENCES:
patent: 2938116 (1960-05-01), Benson et al.
patent: 3986111 (1976-10-01), Sellers
patent: 5070240 (1991-12-01), Lee et al.
patent: 5117107 (1992-05-01), Guilhaus et al.
patent: 5496998 (1996-03-01), Bergmann

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