Radiant energy – With charged particle beam deflection or focussing – Magnetic lens
Patent
1984-05-01
1986-09-30
Anderson, Bruce C.
Radiant energy
With charged particle beam deflection or focussing
Magnetic lens
G21K 108, H01J 314
Patent
active
046148728
ABSTRACT:
An electron beam or similar charged particles may be deflected by passing through an electrostatic field produced in a deflecting structure. The degree of deflection is controlled by rotating the deflecting structure and path relative to one another. The beam may be rotated relative to the structure by a magnetic beam deflector which compensates for a range of electron energies within the beam so that all electrons are deflected in the electrostatic field by an equal amount.
REFERENCES:
patent: 3230409 (1966-01-01), Farrell
patent: 4169229 (1979-09-01), Feuerbaum
patent: 4335309 (1982-06-01), Anger et al.
patent: 4362945 (1982-12-01), Riecke
Anderson Bruce C.
Cambridge Instruments Limited
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