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Title: Modeling of ICRH H-minority-driven n = 1 Resonant Modes in JET

Abstract

A nonperturbative code NOVA-KN (Kinetic Nonperturbative) has been developed to account for finite orbit width (FOW) effects in nonperturbative resonant modes such as the low-frequency MHD modes observed in the Joint European Torus (JET). The NOVA-KN code was used to show that the resonant modes with frequencies in the observed frequency range are ones having the characteristic toroidal precession frequency of H-minority ions. Results are similar to previous theoretical studies of fishbone instabilities, which were found to exist at characteristic precession frequencies of hot ions.

Authors:
; ; ;
Publication Date:
Research Org.:
Princeton Plasma Physics Lab., NJ (US)
Sponsoring Org.:
USDOE Office of Science (SC) (US)
OSTI Identifier:
814750
Report Number(s):
PPPL-3858
TRN: US0304348
DOE Contract Number:  
AC02-76CH03073
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 21 Aug 2003
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; FREQUENCY RANGE; PRECESSION; SIMULATION; ALPHA PARTICLES; KINETIC THEORY; MHD INSTABILITY

Citation Formats

Gorelenkov, N N, Mantsinen, M J, Sharapov, S E, Cheng, C Z, and the JET-EFDA Contributors. Modeling of ICRH H-minority-driven n = 1 Resonant Modes in JET. United States: N. p., 2003. Web. doi:10.2172/814750.
Gorelenkov, N N, Mantsinen, M J, Sharapov, S E, Cheng, C Z, & the JET-EFDA Contributors. Modeling of ICRH H-minority-driven n = 1 Resonant Modes in JET. United States. doi:10.2172/814750.
Gorelenkov, N N, Mantsinen, M J, Sharapov, S E, Cheng, C Z, and the JET-EFDA Contributors. Thu . "Modeling of ICRH H-minority-driven n = 1 Resonant Modes in JET". United States. doi:10.2172/814750. https://www.osti.gov/servlets/purl/814750.
@article{osti_814750,
title = {Modeling of ICRH H-minority-driven n = 1 Resonant Modes in JET},
author = {Gorelenkov, N N and Mantsinen, M J and Sharapov, S E and Cheng, C Z and the JET-EFDA Contributors},
abstractNote = {A nonperturbative code NOVA-KN (Kinetic Nonperturbative) has been developed to account for finite orbit width (FOW) effects in nonperturbative resonant modes such as the low-frequency MHD modes observed in the Joint European Torus (JET). The NOVA-KN code was used to show that the resonant modes with frequencies in the observed frequency range are ones having the characteristic toroidal precession frequency of H-minority ions. Results are similar to previous theoretical studies of fishbone instabilities, which were found to exist at characteristic precession frequencies of hot ions.},
doi = {10.2172/814750},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {8}
}