Electron-beam converter

Details Electron-beam converter Electron-beam converter

1976-06-14

1977-11-22

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

Discharge device load

Discharge control discharge device load

313294, 313299, 313303, 315268, 315339, 328254, H01J 2114, H01J 2126

Patent

active

040597849

ABSTRACT:
The electron-beam converter comprises at least one of each of the following components: a cathode, an anode and, accelerating and control electrodes. The anode has a surface orthogonal with respect to a diverging electron flow and is arranged with respect to the cathode so that the angle between normals to the surfaces of these electrodes is greater than zero but less than 180.degree.. The accelerating electrode is disposed in the opening of this angle. The control electrodes are arranged near the cathode on either side of the electron flow. A cathode-adjacent focusing electrode is arranged behind the control electrode which is on the cathode side opposite to the accelerating electrode, and an anode-adjacent focusing electrode is inserted between the anode and accelerating electrode. All of said electrodes make up an electron-optical system shaping the electron flow into a beam so as to prevent electrons from impinging upon the accelerating electrode. The potentials across the electrodes are distributed so that there is applied to the accelerating electrode a potential which is positive with respect to the cathode and which has a magnitude sufficient for taking off the required amount of current. The anode potential is positive with respect to the cathode potential but is substantially lower than the accelerating electrode potential. There are applied to the cathode and anode-adjacent focusing electrodes potentials close or equal to the cathode or anode potentials, respectively. The control electrode potentials are equal to the cathode potential during the positive half-cycle, and are negative with respect to the cathode during the negative half-cycle.

REFERENCES:
patent: 2225325 (1940-12-01), Van Overbeek
patent: 2512858 (1950-06-01), Hegbar
patent: 2727177 (1955-12-01), Dailey et al.
patent: 2769109 (1956-10-01), Gerard et al.
patent: 3334257 (1967-08-01), Doolittle et al.
patent: 3562576 (1971-02-01), Rusterholz

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