Počet záznamů: 1

Electron cyclotron-electron Bernstein wave emission diagnostics for the COMPASS tokamak

  1. 1.
    0348183 - UFP-V 2011 RIV US eng J - Článek v odborném periodiku
    Zajac, Jaromír - Preinhaelter, Josef - Urban, Jakub - Žáček, František - Šesták, David - Nanobashvili, S.
    Electron cyclotron-electron Bernstein wave emission diagnostics for the COMPASS tokamak.
    Review of Scientific Instruments. Roč. 81, č. 10 (2010), 10D911-10D911 ISSN 0034-6748.
    [TOPICAL CONFERENCE ON HIGH-TEMPERATURE PLASMA DIAGNOSTICS/18th./. Wildwood, New Jersey, 16.05.2010-20.05.2010]
    Grant CEP: GA ČR GA202/08/0419
    Výzkumný záměr: CEZ:AV0Z20430508
    Klíčová slova: antenna radiation patterns * antennas in plasma * plasma diagnostics * Tokamak
    Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech
    Impakt faktor: 1.598, rok: 2010

    The COMPASS tokamak recently started operation at the Institute of Plasma Physics AS CR, v.v, Prague. A new 16-channel radiometer, operating alternatively in three frequency bands, has been designed and constructed. The system is prepared for detection of normal electron cyclotron emission (O1 or X2) or oblique electron Bernstein wave emission. The end-to-end calibration method includes all components that influence the antenna radiation pattern. A steady recalibration is possible using a noise generator connected to the radiometer input through a fast waveguide PIN-switch. Measurements of the antenna radiation characteristics (2D electric field) were performed in free space as well as in the tokamak chamber, showing the degradation effect of structures on the Gaussian beam shape. First plasma radiation temperature measurements from low-field circular plasmas are available.
    Trvalý link: http://hdl.handle.net/11104/0188777