Electron beam deflecting magnet assembly for a scanning electron

Details Electron beam deflecting magnet assembly for a scanning electron Electron beam deflecting magnet assembly for a scanning electron

1984-05-14

1987-02-17

Anderson, Bruce C.

Radiant energy

With charged particle beam deflection or focussing

With target means

250396ML, H01J 334

Patent

active

046441689

ABSTRACT:
A deflecting magnet assembly for scanning an incident beam of charged particles in a scanning electron beam computed tomography scanner. The configuration (including angular orientation and coil end connection geometry) of the coils which comprise the magnet is selected to approximate the field of a pure dipole. In addition, a magnetic shield is used which equalizes the effective radii of the constituent coils and thereby simplifies construction of the assembly.

REFERENCES:
patent: 3007087 (1961-10-01), Corpew
patent: 3430169 (1969-02-01), Gabor
patent: 3731241 (1973-05-01), Coupland
patent: 3911321 (1975-10-01), Wardly
patent: 4122346 (1978-10-01), Enge
patent: 4352021 (1982-09-01), Boyd et al.
Mills et al., "A Flux Theorem for the Design of Magnet Coil Ends," Particle Accelerators, vol. 5, pp. 227-235 (1973).

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