Ponderomotive feedback stabilization of external kinks and disruptions in tokamaks

D. A. D’Ippolito; J. R. Myra; S. C. Jardin; M. S. Chance; E. J. Valeo

doi:10.1063/1.871448

Ponderomotive feedback stabilization of external kinks and disruptions in tokamaks

D. A. D’Ippolito
, J. R. Myra
, S. C. Jardin
, M. S. Chance
, E. J. Valeo

PPPL Theory

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

A novel mechanism for feedback stabilization of external kink modes and disruptions is proposed in which modulated radio-frequency (RF) antennas apply a stabilizing ponderomotive force (PF) to the plasma. The RF power required for n=1 kink stabilization in the Princeton Beta Experiment-Modified (PBX-M) [Phys. Fluids B 2, 1271 (1990)] is estimated, and it is shown that the idea can be tested with the existing antenna system. A simulation of a preliminary n=0 modulation experiment on PBX-M also shows that the PF can balance applied vertical field oscillations.

Original language	English (US)
Pages (from-to)	3429-3439
Number of pages	11
Journal	Physics of Plasmas
Volume	2
Issue number	9
DOIs	https://doi.org/10.1063/1.871448
State	Published - 1995

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

Keywords

FEEDBACK
KINK INSTABILITY
MHD EQUILIBRIUM
PBX DEVICES
PLASMA SIMULATION
PONDEROMOTIVE FORCE
RADIOWAVE RADIATION
STABILIZATION
TOKAMAK DEVICES

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10.1063/1.871448

Cite this

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title = "Ponderomotive feedback stabilization of external kinks and disruptions in tokamaks",

abstract = "A novel mechanism for feedback stabilization of external kink modes and disruptions is proposed in which modulated radio-frequency (RF) antennas apply a stabilizing ponderomotive force (PF) to the plasma. The RF power required for n=1 kink stabilization in the Princeton Beta Experiment-Modified (PBX-M) [Phys. Fluids B 2, 1271 (1990)] is estimated, and it is shown that the idea can be tested with the existing antenna system. A simulation of a preliminary n=0 modulation experiment on PBX-M also shows that the PF can balance applied vertical field oscillations.",

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publisher = "American Institute of Physics",

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AU - D’Ippolito, D. A.

AU - Myra, J. R.

AU - Jardin, S. C.

AU - Chance, M. S.

AU - Valeo, E. J.

PY - 1995

Y1 - 1995

N2 - A novel mechanism for feedback stabilization of external kink modes and disruptions is proposed in which modulated radio-frequency (RF) antennas apply a stabilizing ponderomotive force (PF) to the plasma. The RF power required for n=1 kink stabilization in the Princeton Beta Experiment-Modified (PBX-M) [Phys. Fluids B 2, 1271 (1990)] is estimated, and it is shown that the idea can be tested with the existing antenna system. A simulation of a preliminary n=0 modulation experiment on PBX-M also shows that the PF can balance applied vertical field oscillations.

AB - A novel mechanism for feedback stabilization of external kink modes and disruptions is proposed in which modulated radio-frequency (RF) antennas apply a stabilizing ponderomotive force (PF) to the plasma. The RF power required for n=1 kink stabilization in the Princeton Beta Experiment-Modified (PBX-M) [Phys. Fluids B 2, 1271 (1990)] is estimated, and it is shown that the idea can be tested with the existing antenna system. A simulation of a preliminary n=0 modulation experiment on PBX-M also shows that the PF can balance applied vertical field oscillations.

KW - FEEDBACK

KW - KINK INSTABILITY

KW - MHD EQUILIBRIUM

KW - PBX DEVICES

KW - PLASMA SIMULATION

KW - PONDEROMOTIVE FORCE

KW - RADIOWAVE RADIATION

KW - STABILIZATION

KW - TOKAMAK DEVICES

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DO - 10.1063/1.871448

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JO - Physics of Plasmas

JF - Physics of Plasmas

IS - 9

ER -

Ponderomotive feedback stabilization of external kinks and disruptions in tokamaks

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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