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Watanabe et al., 2022 - Google Patents

Design of a finline antenna for current drive in TST-2

Watanabe et al., 2022

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Document ID
9775812520430840680
Author
Watanabe O
Ko Y
Tsujii N
Takase Y
Ejiri A
Shinohara K
Peng Y
Iwasaki K
Yamada I
Yatomi G
Moeller C
Peng Y
Publication year
Publication venue
Fusion Engineering and Design

External Links

Snippet

A novel “finline” antenna was designed to excite lower-hybrid waves (LHWs) for plasma current drive at 2.45 GHz in the TST-2 spherical tokamak. A periodic fin array acts as a transmission line for electromagnetic surface waves. Cold tests confirmed propagation of the …
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Classifications

    • H—ELECTRICITY
    • H01—BASIC ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/32—Gas-filled discharge tubes, e.g. for surface treatment of objects such as coating, plating, etching, sterilising or bringing about chemical reactions
    • H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
    • H01J37/32192—Microwave generated discharge
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/02—Arrangements for confining plasma by electric or magnetic fields; Arrangements for heating plasma
    • H05H1/16—Arrangements for confining plasma by electric or magnetic fields; Arrangements for heating plasma using externally-applied electric and magnetic field
    • H05H1/18—Arrangements for confining plasma by electric or magnetic fields; Arrangements for heating plasma using externally-applied electric and magnetic field wherein the field oscillate at very high frequency, e.g. in the microwave range, e.g. using cyclotron resonance
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
    • H05B6/00—Heating by electric, magnetic, or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/70—Feed lines
    • H05B6/705—Feed lines using microwave tuning

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