Development of technology and techniques for reflectometry

Journal Article · Thu Oct 01 00:00:00 EDT 1992 · Review of Scientific Instruments; (United States)

DOI:https://doi.org/10.1063/1.1143657· OSTI ID:7250876

Domier, C W; Chung, E; Doyle, E J; Liu, H L; Lapidus, A; Luhmann, Jr, N C; Peebles, W A; Qin, X; Rhodes, T L; Sjogren, L ^[1]

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1. Department of Electrical Engineering, University of California at Los Angeles, Los Angeles, California 90024 (United States)

Development efforts are directed at advanced reflectometry systems for next generation tokamaks such as ITER. Laboratory tests have been successfully completed for a pulsed radar reflectometer ({tau}{congruent}200 ps) to be tested on DIII-D. In addition, there exists a need for sources and components beyond those commercially available. Monolithic quasi-optical spatial power combined arrays of solid state devices will provide continuous, watt level swept source coverage up to 200 GHz as well as electronically controlled beam steering, focusing, and modulation. Studies are also underway to address the feasibility of instantaneous profile coverage using monolithic impulse generators ({tau}{congruent}1--3 ps) comprised of spatially combined nonlinear transmission lines, employing novel quantum barrier varactors.

• DOE Contract Number: FG03-86ER53225
• OSTI ID: 7250876
• Journal Information: Review of Scientific Instruments; (United States), Vol. 63:10; ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
PLASMA DIAGNOSTICS
OPTICAL REFLECTION
BEAM MONITORING
DESIGN
GHZ RANGE 100-1000
PLASMA RADIAL PROFILES
TOKAMAK DEVICES
CLOSED PLASMA DEVICES
FREQUENCY RANGE
GHZ RANGE
MONITORING
REFLECTION
THERMONUCLEAR DEVICES
700320* - Plasma Diagnostic Techniques & Instrumentation- (1992-)