A multichannel heterodyne radiometer in the frequency range 50-75 GHz which has been used to measure the second-harmonic cyclotron emission of the Thor Tokomak plasma is described. Real-time frequency switching, analog output averaging, autocalibration, data-acquisition, and graphical display are all functions performed under control of an Apple II personal computer. Typical experimental results are presented to illustrate the measuring capabilities of the instrument.
MULTICHANNEL HETERODYNE RADIOMETER WITH COMPUTER CONTROL FOR ELECTRON-CYCLOTRON EMISSION MEASUREMENTS OF A TOKOMAK PLASMA
RAMPONI G;SIMONETTO A
1985
Abstract
A multichannel heterodyne radiometer in the frequency range 50-75 GHz which has been used to measure the second-harmonic cyclotron emission of the Thor Tokomak plasma is described. Real-time frequency switching, analog output averaging, autocalibration, data-acquisition, and graphical display are all functions performed under control of an Apple II personal computer. Typical experimental results are presented to illustrate the measuring capabilities of the instrument.File in questo prodotto:
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Descrizione: Articolo pubblicato doi 10.1063/1.1138436
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