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  • Resonant interaction between runaway electrons and the toroidal magnetic field ripple in TCV [Elektronski vir]
    Wijkamp, Tijs ...
    This work explains the anomalously high runaway electron (RE) pitch angles inferred in the flat-top of dedicated Tokamak à Configuration Variable (TCV) experiments. Kinetic modelling shows that the ... resonant interaction between the gyromotion of the electrons and the toroidal magnetic field ripple will give rise to strong pitch angle scattering in TCV. The resulting increase in synchrotron radiation power losses acts as a RE energy barrier. These observations are tested experimentally by a magnetic field ramp-down, which gradually reduces the resonant parallel momentum at which the REs interact with the ripple. Resulting changes in synchrotron emission geometry and intensity are observed using three multi-spectral camera imaging systems, viewing the RE beam at distinct spatial angles in multiple wavelength ranges. Experimental reconstructions of the RE distribution in momentum- and real-space are consistent with kinetic model predictions.
    Vir: Nuclear fusion [Elektronski vir]. - ISSN 1741-4326 (Vol. 64, no. 1, [article no.] 016021, Jan. 2024, 10 str.)
    Vrsta gradiva - e-članek ; neleposlovje za odrasle
    Leto - 2024
    Jezik - angleški
    COBISS.SI-ID - 192759299

    Povezava(-e):

    https://iopscience.iop.org/article/10.1088/1741-4326/ad0dd7
    DOI

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