Geodesic mode instability driven during ion cyclotron heating in tokamaks

2018 ◽  
Vol 25 (6) ◽  
pp. 062512 ◽  
Author(s):  
A. G. Elfimov
Keyword(s):  
Mode Instability ◽  
Ion Cyclotron

Eigenmode description of the hot ion cyclotron beam-whistler mode instability in parallel shock waves

1977 ◽  
Vol 20 (10) ◽  
pp. 1758 ◽  
Author(s):  
K. I. Golden ◽  
Liu Chen ◽  
J. W. Cipolla ◽  
M. B. Silevitch
Keyword(s):  
Shock Waves ◽  
Mode Instability ◽  
Whistler Mode ◽  
Ion Cyclotron

scholarly journals Mirror mode structures and ELF plasma waves in the Giacobini-Zinner magnetosheath

1999 ◽  
Vol 6 (3/4) ◽  
pp. 229-234 ◽  
Author(s):  
B. T. Tsurutani ◽  
G. S. Lakhina ◽  
E. J. Smith ◽  
B. Buti ◽  
S. L. Moses ◽  
...  
Keyword(s):  
High Frequency ◽  
Low Frequency ◽  
Plasma Waves ◽  
Mode Instability ◽  
Pickup Ions ◽  
Ion Cyclotron ◽  
Show Evidence ◽  
Mirror Mode ◽  
High Beta

Abstract. We show evidence for mirror mode structures at comet Giacobini-Zinner. These are plasma structures with alternating high ß and low ß regions driven unstable when ß<perp> /ß<parallel> > 1+ 1/<perp>. These structures are detected in a region just adjacent to the magnetic tail and have scale sizes of ≈ 12 H2O group ion cyclotron radii. Calculations are presented to show that mirror mode instability can occur due to the perpendicular pressure associated with H2O+ cometary pickup ions in the region of mirror mode observation. Adjacent regions (in the magnetic tail and further in the sheath) are found to be stable to the mirror mode. Plasma waves are detected in relation with the mirror mode structures. Low frequency 56 to 100 Hz waves are present in the high beta portions, and high frequency, 311 Hz to 10 kHz, waves are present in low beta regions. These may be electromagnetic lion roar waves and electrostatic festoon-shaped waves, respectively, in analogy to plasma waves detected in the Earth's magnetosheath.

THE DUBNA 4-METER ISOCHRONOUS HEAVY ION CYCLOTRON

1976 ◽  
Vol 37 (C5) ◽  
pp. C5-233-C5-235
Author(s):  
G. N. Flerov
Keyword(s):  
Heavy Ion ◽  
Ion Cyclotron

scholarly journals Suppression of neoclassical tearing mode instability at the initial stage by electron cyclotron current drive

AIP Advances ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 035212
Author(s):  
Zhen Yang ◽  
Bin Wu ◽  
Yuanlai Xie ◽  
Yuqing Chen ◽  
Hongming Zhang ◽  
...  
Keyword(s):  
Electron Cyclotron ◽  
Current Drive ◽  
Tearing Mode ◽  
Mode Instability ◽  
Initial Stage ◽  
Neoclassical Tearing Mode
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