Počet záznamů: 1

Measurements of scrape-off layer ion-to-electron temperature ratio in Tore Supra ohmic plasmas

  1. 1.
    0355653 - UFP-V 2011 RIV NL eng J - Článek v odborném periodiku
    Kočan, M. - Gunn, J. P. - Pascal, J.-Y. - Bonhomme, G. - Devynck, P. - Ďuran, Ivan - Gauthier, E. - Ghendrih, P. - Marandet, Y. - Pegourie, B. - Vallet, J.-C.
    Measurements of scrape-off layer ion-to-electron temperature ratio in Tore Supra ohmic plasmas.
    Journal of Nuclear Materials. 390-391, - (2009), s. 1074-1077 ISSN 0022-3115.
    [International Conference on Plasma-Surface Interactions in Controlled Fusion Devices/18th./. Toledo, 26.05.2008-30.05. 2008]
    Výzkumný záměr: CEZ:AV0Z20430508
    Klíčová slova: Ion temperature * Electron temperature * Edge plasma * Tore Supra
    Kód oboru RIV: BG - Jaderná, atomová a mol. fyzika, urychlovače
    Impakt faktor: 1.933, rok: 2009

    The scrape-off layer (SOL) ion (Ti) and electron (Te) temperatures were measured in ohmic plasmas of the Tore Supra tokamak for a wide range of main plasma parameters. Ti increases strongly with the intensity of the toroidal magnetic field Bt, whereas Te is nearly unaffected. The ion-to-electron temperature ratio tau= Ti/Te ~ Bt2.5 and is a weak function of plasma density and plasma current. Close to the last closed flux surface tau = 2->6 so that equipartition is never reached. The SOL ion temperature e-folding length is about 30% greater than the electron temperature e-folding length meaning that tau increases with radius in the SOL.
    Trvalý link: http://hdl.handle.net/11104/0194372