Study of plasma turbulence in a fast linear theta-pinch by means of Stark broadening of deuterium spectral lines
Line shape studies of the D/sub ..cap alpha../ and D/sub ..beta../ spectral lines of deuterium emitted by plasma in the UTRO theta-pinch device during rapid compression indicate the existence of large, low-frequency (..omega..<<..omega../sub rho//sub e/) plasma oscillations of average magnitude E/sub 0/roughly-equal200 kV/cm with a very small relative amplitude spread ..delta..E/sub 0//E/sub 0/< or approx. =0.1. The experimental data can be accounted for by assuming that plasma instability develops due to buildup of a group of close-lying lower-hybrid unstable drift modes. This type of turbulence is capable of efficiently accelerating electrons at small pitch angles along the magnetic field because of resonance diffusion, and may be the reason for the observed x-ray emission at maximum compression.
- Research Organization:
- A. F. Ioffe Physicotechnical Institute, Academy of Sciences of the USSR, Leningrad
- OSTI ID:
- 5371885
- Journal Information:
- Sov. Phys. - Tech. Phys. (Engl. Transl.); (United States), Vol. 28:4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
DRIFT INSTABILITY
PLASMA WAVES
PLASMA SHEATH
PHOTOGRAPHY
TURBULENCE
VISIBLE RADIATION
X RADIATION
ACCELERATION
AMPLITUDES
COMPRESSION
DEUTERIUM
DIFFUSION
ELECTRIC CONDUCTIVITY
ELECTRON DENSITY
ELECTRONS
EMISSION
ENERGY LEVELS
LINEAR THETA PINCH DEVICES
MAGNETIC FIELDS
OSCILLATIONS
PLASMA DIAGNOSTICS
PLASMA HEATING
RESONANCE
STARK EFFECT
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
FERMIONS
HEATING
HYDROGEN ISOTOPES
INSTABILITY
IONIZING RADIATIONS
ISOTOPES
LEPTONS
LIGHT NUCLEI
LINEAR PINCH DEVICES
NUCLEI
ODD-ODD NUCLEI
OPEN PLASMA DEVICES
PHYSICAL PROPERTIES
PINCH DEVICES
PLASMA INSTABILITY
PLASMA MICROINSTABILITIES
RADIATIONS
STABLE ISOTOPES
THERMONUCLEAR DEVICES
700107* - Fusion Energy- Plasma Research- Instabilities
700102 - Fusion Energy- Plasma Research- Diagnostics