Advantages of using gyrotron scattering for alpha particle diagnostics
Conference
·
OSTI ID:5643792
Millimeter-wave gyrotron collective Thomson scattering can be an effective diagnostic technique for the study of alpha particle behavior in ignited plasmas. The measurement of alpha particle density, velocity distribution, and alpha particle induced plasma instabilities can be accomplished with both spatial and temporal resolution. Advantages include long pulse operation which can make possible very high signal to noise ratios and use of millimeter waves which maximizes the Doppler shifted scattered signal in WHz/sup -1/ and makes possible scattering angles up to 180/sup 0/. Extraordinary mode scattering at approximately 60 and 200 GHz would be used in TFTR and CIT respectively, and 140 GHz ordinary mode scattering in JET. 8 refs., 1 fig.
- Research Organization:
- Massachusetts Inst. of Tech., Cambridge (USA). Plasma Fusion Center
- DOE Contract Number:
- AC02-78ET51013
- OSTI ID:
- 5643792
- Report Number(s):
- DOE/ET/51013-229-07/87; PFC/CP-87-12; CONF-8710140-2; ON: DE88002590
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
ALPHA PARTICLES
CHARGED PARTICLES
CYCLOTRON RESONANCE
DENSITY
DOPPLER EFFECT
ELECTRON CYCLOTRON-RESONANCE
FLUCTUATIONS
FREQUENCY DEPENDENCE
FUNCTIONS
INELASTIC SCATTERING
INSTABILITY
PHYSICAL PROPERTIES
PLASMA DIAGNOSTICS
PLASMA INSTABILITY
RESOLUTION
RESONANCE
SCATTERING
SIGNAL-TO-NOISE RATIO
SPATIAL RESOLUTION
SPECTRAL DENSITY
SPECTRAL FUNCTIONS
THOMSON SCATTERING
TIME RESOLUTION
TIMING PROPERTIES
VARIATIONS
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
ALPHA PARTICLES
CHARGED PARTICLES
CYCLOTRON RESONANCE
DENSITY
DOPPLER EFFECT
ELECTRON CYCLOTRON-RESONANCE
FLUCTUATIONS
FREQUENCY DEPENDENCE
FUNCTIONS
INELASTIC SCATTERING
INSTABILITY
PHYSICAL PROPERTIES
PLASMA DIAGNOSTICS
PLASMA INSTABILITY
RESOLUTION
RESONANCE
SCATTERING
SIGNAL-TO-NOISE RATIO
SPATIAL RESOLUTION
SPECTRAL DENSITY
SPECTRAL FUNCTIONS
THOMSON SCATTERING
TIME RESOLUTION
TIMING PROPERTIES
VARIATIONS