Title: FREQUENCY CONTROL OF RF HEATING OF GASEOUS PLASMA

Abstract

This invention relates to the heating of gaseous plasma by radiofrequency ion-cyclotron resonance heating. The cyclotron resonance frequencies are varied and this invention provides means for automatically controlling the frequency of the radiofrequency to maximize the rate of heating. To this end, a servo-loop is provided to sense the direction of plasma heating with frequency and a control signal is derived to set the center frequency of the radiofrequency energy employed to heat the plasma. (AEC)

Inventors:

Herold, E W

Issue Date:

1962-09-01

OSTI Identifier:

4765498

Patent Number(s):

3052614

Assignee:

U.S. Atomic Energy Commission

Patent Classifications (CPCs):

G - PHYSICS G05 - CONTROLLING G05B - CONTROL OR REGULATING SYSTEMS IN GENERAL

H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05H - PLASMA TECHNIQUE

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G - PHYSICS G05 - CONTROLLING G05B - CONTROL OR REGULATING SYSTEMS IN GENERAL

G05B13/024 - {in which a parameter or coefficient is automatically adjusted to optimise the performance}

H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05H - PLASMA TECHNIQUE

H05H1/18 - wherein the fields oscillate at very high frequency, e.g. in the microwave range {, e.g. using cyclotron resonance}

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NSA Number:

NSA-16-031174

Resource Type:

Patent

Resource Relation:

Other Information: Orig. Receipt Date: 31-DEC-62

Country of Publication:

United States

Language:

English

Subject:

PHYSICS; CONTROL; CYCLOTRON RADIATION; FREQUENCY; GASES; HEATING; IONS; PLANNING; PLASMA; RADIO WAVES; RESONANCE; SERVOMECHANISMS; SIGNALS; THERMONUCLEAR DEVICES