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Direct conversion of light to radio frequency energyA description is presented of the test results obtained with the latest models of the phototron. The phototron was conceived as a replacement for the high voltage solar cell-high power klystron combination for the solar power satellite concept. Physically, the phototron is a cylindrical evacuated glass tube with a photocathode, two grids, and a reflector electrode in a planar configuration. The phototron can be operated either in a biased mode where a low voltage is used to accelerate the electron beam produced by the photocathode or in an unbiased mode referred to as self-oscillation. The device is easily modulated by light input or voltage to broadcast in AM or FM. The range of operation of the present test model phototrons is from 2 to 200 MHz.
Document ID
19820028177
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Freeman, J. W.
(Rice Univ. Houston, TX, United States)
Simons, S.
(Rice University Houston, TX, United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1981
Subject Category
Energy Production And Conversion
Meeting Information
Meeting: In: Intersociety Energy Conversion Engineering Conference
Location: Atlanta, GA
Start Date: August 9, 1981
End Date: August 14, 1981
Accession Number
82A11712
Funding Number(s)
CONTRACT_GRANT: NAG3-29
Distribution Limits
Public
Copyright
Other

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