Development of technology and techniques for reflectometry

Domier, C. W.; Chung, E.; Doyle, E. J.; Liu, H.‐X. L.; Lapidus, A.; Luhmann, N. C.; Peebles, W. A.; Qin, X.‐H.; Rhodes, T. L.; Sjogren, L.

doi:10.1063/1.1143657

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Research Article| October 01 1992

Development of technology and techniques for reflectometry

C. W. Domier;

C. W. Domier

Department of Electrical Engineering, University of California at Los Angeles, Los Angeles, California 90024

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E. Chung;

E. Chung

Department of Electrical Engineering, University of California at Los Angeles, Los Angeles, California 90024

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E. J. Doyle;

E. J. Doyle

Department of Electrical Engineering, University of California at Los Angeles, Los Angeles, California 90024

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H.‐X. L. Liu;

H.‐X. L. Liu

Department of Electrical Engineering, University of California at Los Angeles, Los Angeles, California 90024

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A. Lapidus;

A. Lapidus

Department of Electrical Engineering, University of California at Los Angeles, Los Angeles, California 90024

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N. C. Luhmann, Jr.;

N. C. Luhmann, Jr.

Department of Electrical Engineering, University of California at Los Angeles, Los Angeles, California 90024

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W. A. Peebles;

W. A. Peebles

Department of Electrical Engineering, University of California at Los Angeles, Los Angeles, California 90024

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X.‐H. Qin;

X.‐H. Qin

Department of Electrical Engineering, University of California at Los Angeles, Los Angeles, California 90024

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T. L. Rhodes;

T. L. Rhodes

Department of Electrical Engineering, University of California at Los Angeles, Los Angeles, California 90024

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L. Sjogren

Department of Electrical Engineering, University of California at Los Angeles, Los Angeles, California 90024

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Author & Article Information

C. W. Domier

Department of Electrical Engineering, University of California at Los Angeles, Los Angeles, California 90024

E. Chung

Department of Electrical Engineering, University of California at Los Angeles, Los Angeles, California 90024

E. J. Doyle

Department of Electrical Engineering, University of California at Los Angeles, Los Angeles, California 90024

H.‐X. L. Liu

Department of Electrical Engineering, University of California at Los Angeles, Los Angeles, California 90024

A. Lapidus

Department of Electrical Engineering, University of California at Los Angeles, Los Angeles, California 90024

N. C. Luhmann, Jr.

Department of Electrical Engineering, University of California at Los Angeles, Los Angeles, California 90024

W. A. Peebles

Department of Electrical Engineering, University of California at Los Angeles, Los Angeles, California 90024

X.‐H. Qin

Department of Electrical Engineering, University of California at Los Angeles, Los Angeles, California 90024

T. L. Rhodes

Department of Electrical Engineering, University of California at Los Angeles, Los Angeles, California 90024

L. Sjogren

Department of Electrical Engineering, University of California at Los Angeles, Los Angeles, California 90024

Rev. Sci. Instrum. 63, 4666–4668 (1992)

https://doi.org/10.1063/1.1143657

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 (τ≂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 (τ≂1–3 ps) comprised of spatially combined nonlinear transmission lines, employing novel quantum barrier varactors.

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