Observation of hot electron ring instabilities in ELMO Bumpy Torus
作者:
S. Hiroe,
J. B. Wilgen,
F. W. Baity,
L. A. Berry,
R. J. Colchin,
W. A. Davis,
A. M. El Nadi,
G. R. Haste,
D. L. Hillis,
D. A. Spong,
T. Uckan,
T. L. Owens,
期刊:
Physics of Fluids(00319171)
(AIP Available online 1984)
卷期:
Volume 27,
issue 4
页码: 1019-1029
ISSN:0031-9171
年代: 1984
DOI:10.1063/1.864700
出版商: AIP
数据来源: AIP
摘要:
A high‐frequency hot electron instability is observed in ELMO Bumpy Torus (EBT) plasmas when the hot electron‐to‐ion density ratio exceeds 0.4. Both the real frequency and the imaginary frequency are larger than the ion cyclotron frequency. The azimuthal mode number (m) is 7, and the instability rotates in the hot electron curvature drift direction. This instability is identified as a curvature‐driven mode. When it is strongly excited, the equilibrium of the hot electron annuli and confined plasmas are destroyed (disruption). Ion heating and neutron bursts are associated with this instability.
点击下载:
PDF
(906KB)
返 回