Počet záznamů: 1

First measurements of edge localized mode ion energies in the ASDEX Upgrade far scrape-off layer

  1. 1.
    0363957 - UFP-V 2012 RIV GB eng J - Článek v odborném periodiku
    Kočan, M. - Herrmann, A. - Müller, H. W. - Rohde, V. - Eich, T. - Bernert, M. - Carpentier-Chouchana, S. - Gunn, J. P. - Kirk, A. - Komm, Michael - Pitts, R.A.
    First measurements of edge localized mode ion energies in the ASDEX Upgrade far scrape-off layer.
    Plasma Physics and Controlled Fusion. Roč. 53, č. 6 (2011), 065002-065002 ISSN 0741-3335
    Výzkumný záměr: CEZ:AV0Z20430508
    Klíčová slova: RFA * ELM * SOL * tokamak plasma ion temperature
    Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech
    Impakt faktor: 2.425, rok: 2011

    Using the retarding field analyzer technique, ion energies carried by edge localized mode (ELM) filaments have been measured for the first time in the far scrape-off layer (SOL) of the ASDEX Upgrade tokamak. Energies, Ei ELM, exceeding 160 eV have been found, 5–6 cm outside the separatrix, with a decay length of about 2 cm. The measured ELM particle ion temperature in the far SOL is in the range Ti ELM ≈ 50–80 eV, in good agreement with the predictions from two simple collisionless models of ELM parallel transport. In between ELMs, Ti ≈ Te ≈ 10 eV is observed in the far SOL, consistent with relatively strong ion–electron thermal coupling in this region.
    Trvalý link: http://hdl.handle.net/11104/0199566