Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Superconductive type
Patent
1989-04-07
1989-08-29
Harris, George
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Superconductive type
335306, 315535, 505 1, H01F 722
Patent
active
048621269
ABSTRACT:
Periodic permanent magnet structures comprise a plurality of paired axially ligned segments of transversely sliced or truncated hollow cylindrical flux sources each of which produces a uniform high-field in its central cavity. Each pair of segments is mounted on opposite sides of a respective plate of permeable material. The magnetic field orientations in the central cavities are axially directed and alternate or reverse in direction from segment to segment. An axial bore hole drilled through the segments and plates provides a continuous channel or path through which a beam of charged particles will travel.
REFERENCES:
patent: 3008044 (1961-11-01), Buchhold
patent: 3239725 (1966-03-01), Wiederhold
patent: 3665351 (1972-05-01), Donaldson et al.
patent: 4829276 (1989-05-01), Leupold et al.
patent: 4829277 (1989-05-01), Stamura et al.
Harris George
Knab Ann M.
The United States of America as represented by the Secretary of
Zelenka Michael J.
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