Evidence of coupling between toroidal Alfv{acute e}n eigenmodes and kinetic Alfv{acute e}n waves

Journal Article · Thu Feb 01 04:00:00 EST 1996 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.49509· OSTI ID:285263

Wong, K L; Bretz, N; Chang, Z; Chen, L; Fu, G Y; Machuzak, J; Majeski, R; Rogers, J; Schilling, G; Wilson, J R ^[1]

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1. Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08543 (United States)

A 60 GHz microwave scattering system was used to search for kinetic Alfv{acute e}n waves when toroidal Alfv{acute e}n eigenmodes were excited by the energetic hydrogen ions produced during ion cyclotron resonance heating in the Tokamak Fusion Test Reactor (TFTR). Scattering signals from the expected location with the correct frequencies and wave wavelengths were observed. These data are presented as the first evidence for the coupling between toroidal Alfv{acute e}n eigenmodes and kinetic Alfv{acute e}n waves, indicating the existence of continuum damping and/or radiative damping. {copyright} {ital 1996 American Institute of Physics.}

• Research Organization: Princeton Plasma Physics Laboratory
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 285263
• Report Number(s): CONF-9505105--
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 355; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ALFVEN WAVES
COUPLING
ELECTRON TEMPERATURE
HYDROGEN IONS
ICR HEATING
ION TEMPERATURE
KEV RANGE 01-10
MHZ RANGE 01-100
TFTR TOKAMAK