Effect of the electric field pattern on the generation of fast electrons in front of lower hybrid launchers

Journal Article · Thu Dec 10 00:00:00 EST 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4936530· OSTI ID:22496218

Valade, Laurent; Ekedahl, Annika; Colas, Laurent; Goniche, Marc; Hillairet, Julien ^[1]; Fuchs, Vladimir; Petrzilka, Vaclav ^[2]; Li, Miaohui; Zhang, Bin ^[3]

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1. CEA, IRFM, F-13108 Saint Paul-lez-Durance (France)
2. Institute of Plasma Physics, AS CR, Prague (Czech Republic)
3. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031 (China)

The effect of the detailed waveguide spectrum on the electron acceleration has been studied for the 3.7 GHz LHCD launchers in Tore Supra, i.e. the ITER-like passive-active multijunction (PAM) launcher and the fully-active-multijunction (FAM) launcher, using test electron modelling technique. The detailed launched antenna wave spectrum is used as input to the code that computes the dynamics of the electrons in the electric field. Comparison with the LHCD launchers in EAST, operating at 2.45 GHz and 4.6 GHz, has also been made. The simulations show that the PAM-design generates lower flux of fast electrons than FAM-launchers, this could be the consequence of the wider waveguide of PAM-launcher (14.65 mm for Tore-Supra) than FAM-launcher (8 mm for Tore-Supra)

• OSTI ID: 22496218
• Journal Information: AIP Conference Proceedings, Vol. 1689, Issue 1; Conference: 21. topical conference on radio frequency power in plasmas, Lake Arrowhead, CA (United States), 27-29 Apr 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCELERATION
ANTENNAS
COMPARATIVE EVALUATIONS
ELECTRIC FIELDS
ELECTRONS
GHZ RANGE 01-100
ITER TOKAMAK
LOWER HYBRID CURRENT DRIVE
LOWER HYBRID HEATING
SIMULATION
SPECTRA
TORE SUPRA TOKAMAK
WAVEGUIDES