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Effects of Lower-Hybrid Heating on the Hot Electrons in an Electron-Cyclotron-Resonance Plasma

Journal Article · · IEEE Transactions on Plasma Science
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Experiments were performed on an electron cyclotron resonance plasma in a dc magnetic mirror to determine the effects of lower hybrid resonance radiation on the anisotropy of the plasma. It was found that the anisotropy of the plasma hot electrons decreased, the flux of hot electrons escaping through the mirror throats decreased and the midplane wall bremsstrahlung rate slightly increased as lower hybrid resonance power was increased. This is explained by observing that cold plasma, expelled by the lower hybrid radiation, decreases the number of scattering centers in the midplane, which results in a deeper diamagnetic well for the hot electrons. (auth)
Research Organization:
Univ. of Wisconsin, Madison, WI (United States)
Sponsoring Organization:
USDOE
NSA Number:
NSA-33-002737
OSTI ID:
4184081
Journal Information:
IEEE Transactions on Plasma Science, Journal Name: IEEE Transactions on Plasma Science Journal Issue: 3 Vol. 3; ISSN 0093-3813
Publisher:
IEEE
Country of Publication:
United States
Language:
English

References (4)

Off-resonance heating of mirror confined plasmas journal March 1972
Plasma Electron Velocity Distributions Determined from the Polarization of Free-Free Bremsstrahlung journal August 1972
Polarization of the Free-Free Bremsstrahlung in an Anisotropic Hot-Electron Plasma journal July 1971
Lower hybrid resonance heating in a hot electron plasma journal May 1975

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Related Subjects

*PLASMA HEATING-- ECR HEATING
700101* --Fusion Energy--Plasma Research--Plasma Confinement & Heating
ANISOTROPY
BREMSSTRAHLUNG
HYBRID RESONANCE
MAGNETIC MIRRORS
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