Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Electron or ion beam deflecting type
Patent
1994-12-22
1996-10-22
Brown, Brian W.
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Electron or ion beam deflecting type
335297, 335299, 250396ML, 315503, H01J 37147
Patent
active
055681093
ABSTRACT:
A normal conducting bending electromagnet having: a pair of pole pieces having respective pole piece faces, said pole pieces being; disposed with the pole piece faces thereof facing each other with a substantially constant gap therebetween; a magnetic field for forming a charged particle beam arc orbit, being generated in the gap between the pole pieces. A yoke coupled to the pole pieces for forming a closed magnetic circuit with the gap, and a pair of coils is provided for generating a magnetomotive force and generating magnetic fluxes in the magnetic circuit. At least one side wall of each of the pole pieces is slanted or stepped along a virtual slanted plane; along the magnetic path of the pole piece so as to gradually broaden the cross sectional area of the pole piece at the plane perpendicular to the magnetic path from the gap toward the yoke, the slanted side wall or the virtual slanted plane; having a slant angle in the range from 30.degree. or smaller relative to the pole piece faces, the width of the pole piece face being in the range from 4 cm or wider to 20 cm and the height of the gap along the magnetic path being in the range from 1 cm or higher to 6 cm. The normal conducting bending electromagnet can generate a strong magnetic field and reduce the orbit radius of an electron storage ring.
REFERENCES:
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Proceedings Of The 1993 Particle Accelerator Conference, Washington, D.C., USA, May 17-20, 1993, vol. 4, pp. 2829-2831, Harding et al, "Design and Measurements of Prototype Fermilab Main Injector Dipole Endpacks".
Patent Abstracts Of Japan, vol. 12, No. 367 (E-664) Sep. 30, 1988 & JP-A-63 117 646 (Shibaura Eng. Works) May 21, 1988.
Barrera Raymond M.
Brown Brian W.
Sumitomo Heavy Industrie's, Ltd.
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