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  • The JET Alfvén Eigenmode Local Manager for the real-time detection and tracking of a frequency-degenerate spectrum of MHD instabilities
    Testa, Duccio ...
    We present the real-time VME system used to detect and track MHD instabilities, and particularly Alfvén Eigenmodes, on the JET tokamak šJ. Wesson, Tokamaks, 3rd ed., Oxford Science Publication, ... Oxford, 2003, p. 617đ. This system runs on a 1 kHz clock cycle, and allows performing a real-time, unsupervised and blind detection, decomposition and tracking of the individualcomponents in a frequency-degenerate, multi-harmonic spectrum, usinga small number of input data which are unevenly sampled in the spatial domain. This makes it possible to follow in real-time the detected modes as the plasma background evolves, and measure in real-time their frequency, damping rate, toroidal mode-number and relative amplitude. The successful implementation of this system opens a clear path towards developing real-time control tools for electro-magnetic instabilities in future fusion devices aimed at achieving a net energy gain, such as ITER
    Source: Fusion engineering and design. - ISSN 0920-3796 (Iss. 4-5, Vol. 86, 2011, str. 381-392)
    Type of material - article, component part
    Publish date - 2011
    Language - english
    COBISS.SI-ID - 25290023

source: Fusion engineering and design. - ISSN 0920-3796 (Iss. 4-5, Vol. 86, 2011, str. 381-392)
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