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

Gorelenkov, N.N. ; Mantsinen, M.J. ; Sharapov, S.E. ; Cheng, C.Z. ; Contributors, the JET-EFDA

Princeton University. Plasma Physics Laboratory.

关键词: Precession;    70 Plasma Physics And Fusion Technology;    Alpha Particles;    Simulation;    Alpha Particles Alpha Particles;   

DOI  :  10.2172/814750
RP-ID  :  PPPL-3858
RP-ID  :  AC02-76CH03073
RP-ID  :  814750

美国|英语

来源: UNT Digital Library

【 摘 要 】

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.