Interferometric determination of the sound speed in magnetized plasma using time-delayed correlation techniques
Journal Article
·
· Appl. Phys. Lett.; (United States)
Time-delayed correlation measurements with a CO/sub 2/ laser, multichord plasma interferometer show density perturbations propagating along the local magnetic field in the edge region of the ZT-40M reversed field pinch. The observed speed is consistent with ion-acoustic propagation. Such measurements of field-parallel waves with long wavelength (lambda/sub parallel/ > or approx. =several centimeters) may provide a quasilocal, quasi-cw diagnostic of the sound speed in many low ..beta.. magnetically confined plasmas, useful in estimating plasma temperatures.
- Research Organization:
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545
- OSTI ID:
- 5859649
- Journal Information:
- Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 39:10; ISSN APPLA
- Country of Publication:
- United States
- Language:
- English
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Tue Nov 30 23:00:00 EST 1982
· J. Appl. Phys.; (United States)
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Two-dimensional interferometric imaging of moving plasma disturbances in the ZT-40M reversed-field pinch, using time-delayed correlation techniques
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· Appl. Phys. Lett.; (United States)
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Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700108* -- Fusion Energy-- Plasma Research-- Wave Phenomena
CARBON DIOXIDE LASERS
CONFINEMENT
CORRELATIONS
DATA
DISTRIBUTION
GAS LASERS
INFORMATION
INTERFEROMETRY
ION ACOUSTIC WAVES
ION TEMPERATURE
ION WAVES
LASERS
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC FIELDS
MATHEMATICAL MODELS
NUMERICAL DATA
PINCH EFFECT
PLASMA
PLASMA CONFINEMENT
PLASMA WAVES
SOUND WAVES
SPATIAL DISTRIBUTION
THEORETICAL DATA
TIME DEPENDENCE
VELOCITY
WAVE PROPAGATION
700108* -- Fusion Energy-- Plasma Research-- Wave Phenomena
CARBON DIOXIDE LASERS
CONFINEMENT
CORRELATIONS
DATA
DISTRIBUTION
GAS LASERS
INFORMATION
INTERFEROMETRY
ION ACOUSTIC WAVES
ION TEMPERATURE
ION WAVES
LASERS
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC FIELDS
MATHEMATICAL MODELS
NUMERICAL DATA
PINCH EFFECT
PLASMA
PLASMA CONFINEMENT
PLASMA WAVES
SOUND WAVES
SPATIAL DISTRIBUTION
THEORETICAL DATA
TIME DEPENDENCE
VELOCITY
WAVE PROPAGATION