Thermal spectrum of collisionless tearing modes

Journal Article · Thu Apr 01 04:00:00 EST 1982 · Phys. Fluids; (United States)

DOI:https://doi.org/10.1063/1.863796· OSTI ID:5523044

Kleva, R G

The principle of superposition of dressed test particles is used to calculate the thermal spectrum of collisionless tearing modes. The analysis is restricted to modes satisfying the ''constant -psi (or A/sub parallel/)'' approximation. The ratio of fluctuating to equilibrium magnetic energy contained in the wavenumber range Vertical Bark/sub y/dVertical Bar<1 is found to be <(B/B)/sup 2/> = ..beta../(4..pi..)/sup 2/nL/sub s/d/sup 2/, where ..beta..equivalent8..pi..nT/sub e//B/sup 2/ is the ratio of the plasma pressure to the magnetic field pressure, L/sub s/ is the shear length of the magnetic field, and d is the collisionless skin depth. For typical tokamak discharges <(B/B/sup 2/)> is of order 10/sup -19/.

• Research Organization: Laboratory for Plasma and Fusion Energy Studies, University of Maryland, College Park, Maryland 20742
• OSTI ID: 5523044
• Journal Information: Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 25:4; ISSN PFLDA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700105* -- Fusion Energy-- Plasma Research-- Plasma Kinetics-Theoretical-- (-1987)
700107 -- Fusion Energy-- Plasma Research-- Instabilities
CHERENKOV RADIATION
CLOSED PLASMA DEVICES
DAMPING
ELECTROMAGNETIC RADIATION
ENERGY TRANSFER
FLUCTUATIONS
HEAT TRANSFER
INSTABILITY
MAGNETIC FIELDS
PLASMA
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
PLASMA WAVES
RADIATIONS
TEARING INSTABILITY
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
VARIATIONS