Depressed collector/ribbon electron beam analyzer for a diffract

Details Depressed collector/ribbon electron beam analyzer for a diffract Depressed collector/ribbon electron beam analyzer for a diffract

1984-06-19

1985-10-01

Sikes, William L.

Coherent light generators

Free electron laser

315 3, 315 35, 315 4, 315 5, 315 524, 315 538, 315 393, H01S 300

Patent

active

045450560

ABSTRACT:
A diffraction radiation generator in which a ribbon electron beam is directed over a diffraction grating within an open resonator at a selected velocity to generate coherent radiation. After passing through the open resonator, the ribbon beam is directed through aligned slits in two or more conductive elements to a collector. Progressively negative voltages relative to the grating voltage can be applied to the elements and the collector to decelerate the electrons forming the ribbon beam and thus minimize heating of the collector and increase the operating efficiency of the generator. Also, the elements and the collector can be utilized to analyze the ribbon beam.

REFERENCES:
patent: 2634372 (1953-04-01), Salisbury
patent: 3170116 (1965-02-01), Farrington
patent: 3271618 (1966-09-01), Kooyers
patent: 3273006 (1966-09-01), Osepchuk
patent: 3340416 (1967-09-01), Young
patent: 3437915 (1969-04-01), Russell
Leavitt et al., "Millimeter-Wave Orotron Oscillation-Part 1: Theory", IEEE our. Quant. Elect., vol. QE-17, No. 8, Aug. 1981.
Wortman et al., "Millimeter-Wave Orotron Oscillation-Part II: Experiment", IEEE Jour. Quant. Elect., vol. QE-17, No. 8, Aug. 1981.

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