Development of high-power millimeter and submillimeter wavelength collective Thomson scattering diagnostics for energetic ion measurements in tokamaks (abstract)

Journal Article · Mon Oct 01 04:00:00 EDT 1990 · Review of Scientific Instruments; (USA)

DOI:https://doi.org/10.1063/1.1141649· OSTI ID:6205789

Machuzak, J S; Rhee, D Y; Woskov, P P; Cohn, D R ^[1]; Myer, R C ^[2]; Bretz, N; Efthimion, P ^[3]

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1. Massachusetts Institute of Technology, Plamsa Fusion Center, Cambridge, MA (USA)
2. Applied Science and Technology, Inc., Woburn, MA (USA)
3. Princeton Plasma Physics Laboratory, Princeton, NJ (USA)

High-power, large-angle ({gt}10{degree}), collective Thomson scattering diagnostics can provide localized density and velocity distribution data of confined alpha particles, ICRH simulated alpha particles, and ions related to ICRH and neutral beam energy deposition. Millimeter-wave gyrotron systems are under development for TFTR and JET. Scattering with a submillimeter gyrotron is being investigated for Alcator C-Mod. Major design issues include plasma accessibility, scattering angle, orientation to magnetic field, spectra of non-Maxwellian velocity distributions, signal-to-noise ratio, refraction, electron cyclotron emission, and beam and viewing dumps.

• DOE Contract Number: AC02-78ET51013
• OSTI ID: 6205789
• Journal Information: Review of Scientific Instruments; (USA), Journal Name: Review of Scientific Instruments; (USA) Vol. 61:10; ISSN RSINA; ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
ALPHA DETECTION
ALPHA PARTICLES
AMPLIFIERS
CHARGED PARTICLE DETECTION
CHARGED PARTICLES
CLOSED PLASMA DEVICES
DETECTION
ELECTRONIC EQUIPMENT
EQUIPMENT
INELASTIC SCATTERING
ION TEMPERATURE
MICROWAVE AMPLIFIERS
MICROWAVE EQUIPMENT
PLASMA DENSITY
PLASMA DIAGNOSTICS
RADIATION DETECTION
SCATTERING
SIGNAL-TO-NOISE RATIO
THERMONUCLEAR DEVICES
THOMSON SCATTERING
TOKAMAK DEVICES