Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Magnet structure or material
Patent
1989-03-17
1989-08-22
Harris, George
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Magnet structure or material
335210, H01F 702
Patent
active
048599760
ABSTRACT:
A periodic permanent magnet stack comprises a plurality of aligned, juxtaed, hollow hemispherical flux sources each of which produces a uniform high-field in its hemispherical central cavity. The magnetic field orientations in the central cavities are axially directed and alternate or reverse in direction from hemisphere to hemisphere. An axial bore hole through the stack provides a continuous channel or path through which a beam of charged particles will travel.
REFERENCES:
patent: 4764743 (1988-08-01), Leupold et al.
patent: 4800353 (1989-01-01), Csonka et al.
Harris George
Mullarney John K.
The United States of America as represented by the Secretary of
Zelenka Michael J.
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