Ferromagnetic structure of an ion source produced by permanent m

Details Ferromagnetic structure of an ion source produced by permanent m Ferromagnetic structure of an ion source produced by permanent m

1984-08-29

1986-04-01

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Magnet structure or material

335214, H01F 700

Patent

active

045801207

ABSTRACT:
Ferromagnetic structure of an ion source produced by permanent magnets and solenoids.
In the ferromagnetic structure according to the invention, the system of solenoids is shielded on the outside of the useful volume of the source by a first ferromagnetic casing, the permanent magnets being mounted on the inner walls of a second casing shaped like a cylinder and made from ferromagnetic material, in order to channel the magnetic fluxes outside the useful volume into a ferromagnetic structure, the two casings being separated from one another by a material ensuring an adequate reluctance between the two ferromagnetic circuits.

REFERENCES:
Revue de Physique Appliquee, vol. 15, No. 5, May 1980, Paris (FR), R. Geller et al.: "Micromafios source d'ions multicharges basee sur la resonance cyclotronique des electrons", pp. 995-1005, *1001, colonne 2, lignes 17-24; figure 9 *.
IEEE Transaction on Plasma Science, vol. PS-6, No. 4, Dec., 1978, J. T. Crow et al.: "High Performance, Low Energy Ion Source", pp. 535-538, *p. 535, colonne 2, lignes 1-8; figure 1a *.
Nuclear Instruments and Methods, vol. 92, No. 2, Mar. 15, 1971, Amsterdam (NL), A. Isoya et al.: "A Beam Injection system for the Terminal Ion source of the Electrostatic Generator", pp. 215-220, * figure 6 *.
Helvetia Physica Acta, vol. 47, No. 4, 1974 Bale (CH), A. Chielmetti et al.: "Ein Energie-Massen-Spektrometer zur Messung des Magnetosphaerischen Plasmas", pp. 473-477, * p. 474, lignes 10-13 *.

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