Self crossed field type ion source

Details Self crossed field type ion source Self crossed field type ion source

1975-06-18

1979-05-22

Rolinec, Rudolph V.

Electric lamp and discharge devices

With magnetic device

Electrode generates field

313217, 3132313, H01J 150

Patent

active

041561597

ABSTRACT:
An ion source of the electron bombardment type which includes mainly a cathode and an anode confronting the cathode. In order to effect the formation of a magnetic field perpendicular to an electric field established between the cathode and the anode, the anode and/or the cathode is of a particular configuration, more specifically a spiral or helical configuration. A flow of large current is supplied through the anode to establish the magnetic field while application of a given voltage across the cathode produces a multiplicity of electrons. With such an arrangement, movements of charged particles such as electrons or ions are controlled under the influences of the electric and magnetic fields thereby to enhance the production of ions. High temperature operations and simplified implementations become possible because the present ion source itself produces the magnetic field with only a modification of the electrode assembly thereof.

REFERENCES:
patent: 3969646 (1976-07-01), Reader et al.

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