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Physics and AstronomyAtomic and Molecular Physics and Spectroscopy

Anomalous Decay of Langmuir Turbulence. High Power, High Frequency Radiation from Beam-Plasma Interactions

Authors: Gregory Benford; CALIFORNIA UNIV IRVINE DEPT OF PHYSICS
Abstract:
A new Stark effect diagnostic was used to measure the E-field distribution of Langmuir waves in beam-plasma turbulence. Abrupt beam cut off causes the distribution's amplitude to decay exponentially in a microsecond, in disagreement with recent power law scalings deduced from cascade theory. (jhd)

Limitations: APPROVED FOR PUBLIC RELEASE
Description: Final rept. 15 Nov 87-29 Jun 90
Pages: 19
Report Date: 28 JUN 90
Contract Number: AFOSR-87-0217
Report Number: A282422
Keywords relating to this report:
*ELECTRON BEAMS
*PLASMAS(PHYSICS)
*PLASMAS_PHYSICS_
*TURBULENCE
AMPLITUDE
ANOMALIES
DECAY
DISTRIBUTION
ELECTRIC FIELDS
HIGH FREQUENCY
HIGH POWER
INTERACTIONS
LANGMUIR PROBES
POWER
RADIATION
STARK EFFECT
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