Redistribution of Suprathermal Electrons due to Fishbone Frequency Jumps

Journal Article · Fri Apr 17 00:00:00 EDT 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.102.155005· OSTI ID:21180388

Macor, A; Goniche, M; Artaud, J F; Decker, J; Elbeze, D; Garbet, X; Giruzzi, G; Hoang, G T; Maget, P; Mazon, D; Molina, D; Nguyen, C; Peysson, Y; Sabot, R; Segui, J L ^[1]

---

1. CEA, IRFM, F-13108 Saint-Paul-Lez-Durance (France)

MHD instabilities driven by fast electrons identified as fishbonelike modes have been detected on Tore Supra during lower hybrid current drive discharges. Direct experimental evidence is reported of a novel feature: the regular redistribution of suprathermal electrons toward external tokamak regions which are correlated to periodic mode frequency jumps. Sharp drops of the electron temperature time trace are factually linked to the cyclical deterioration of the fast electron confinement.

• OSTI ID: 21180388
• Journal Information: Physical Review Letters, Vol. 102, Issue 15; Other Information: DOI: 10.1103/PhysRevLett.102.155005; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ELECTRON TEMPERATURE
ELECTRONS
LOWER HYBRID CURRENT DRIVE
MAGNETOHYDRODYNAMICS
PERIODICITY
PLASMA CONFINEMENT
PLASMA INSTABILITY
TORE SUPRA TOKAMAK