Electric lamp and discharge devices: systems – Cathode ray tube circuits – Combined cathode ray tube and circuit element structure
Patent
1990-06-06
1992-07-28
LaRoche, Eugene R.
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Combined cathode ray tube and circuit element structure
331 79, 333995, 335214, 505700, H01J 2302, H03B 901
Patent
active
051343410
ABSTRACT:
In a quasi-optical gyrotron, two coils (3a, 3b) in a Helmholtz arrangement generate a static magnetic field which is axially symmetrical with respect to an electron beam axis (2). As a result, the electrons passing along the electron beam axis (2) parallel to the magnetic field are forced into gyration and excite an alternating electromagnetic field in a quasi-optical resonator. The resonator comprises two mirrors (4a, 4b) which are arranged opposite to one another on a resonator axis (5) and which exhibit a superconducting reflective surface (6a, 6b). The resonator axis (5) is aligned perpendicularly to the electron beam axis (2) between the two coils (3a, 3b). So that the superconduction is not impaired by the strong magnetic field, means for suppressing the magnetic field at the location of the mirros (4a, 4b) are provided. These means preferably comprise a yoke (10) of a material having a high magnetic permeability.
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Brown Boveri Review, Jun. 1987, pp. 303-307, H. G. Mathews et al., "Das Gyrotron, Schlusselkomponente fur Hochleistungs-Mikrowellen-Sender" (The Gyrotron, Key Component for High-Power Microwave Transmitters).
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Jodicke Bernd
Mathews Hans-Gunter
Asea Brown Boveri Ltd.
LaRoche Eugene R.
Lee Benny T.
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