BACKWARD-WAVE MICROWAVE OSCILLATIONS IN A SYSTEM COMPOSED OF AN ELECTRON BEAM AND A HYDROGEN GAS PLASMA

Journal Article · Sat Apr 01 04:00:00 EST 1961 · Journal of Applied Physics (U.S.)

DOI:https://doi.org/10.1063/1.1736079· OSTI ID:4028899

Targ, R; Levine, L P

A traveling-wave interaction structure is used to investigate the properties of a low-density plasma formed by the interaction of an electron beam with H gas. Microwave oscillations near the electron cyclotron frequeney are observed as the result of growing waves in a beam-plasma interaction. Electron densities are deternnaned by observing the correlation between the measured frequencies of oscillation and the theoretidal predidtions relating to backward- wave propagation in a beam-plasma system in a magnetic field. This electron density is verified by observation of the shift in the resonant frequency of a microwave cavity contanning the plasma. The shift in the resonant frequency of the cavity gives a direct measurement of the electron plasma freqnency and, hence, the electron density. (auth)

• Research Organization: Sperry Gyroscope Co., Great Neck, N.Y.
• Sponsoring Organization: USDOE
• NSA Number: NSA-15-016573
• OSTI ID: 4028899
• Journal Information: Journal of Applied Physics (U.S.), Journal Name: Journal of Applied Physics (U.S.) Vol. Vol: 32; ISSN JAPIA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CIRCUITS
CORRELATION
DENSITY
ELECTRON BEAMS
ELECTRONS
FREQUENCY
GASES
GYROFREQUENCY
HYDROGEN
INTERACTIONS
MAGNETIC FIELDS
MEASURED VALUES
MICROWAVES
OSCILLATIONS
PHYSICS
PLASMA
RESONANCE
STATISTICS