A new broadband ECRH system is currently under construction at the ASDEX Upgrade tokamak. This system employs multi-frequency gyrotrons step-tunable in the range 105-140 GHz. A set of two corrugated polarizer mirrors are applied to provide for an arbitrary polarization of the Gaussian beam injected into the plasma. The principal bandwidth of such a two-polarizer setup has been evaluated. It can be shown that two mirrors with sinusoidal grooves and corrugation depths adjusted to the center frequency of 122.5 GHz satisfy the requirements.


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    Titel :

    Polarizer design for multi-frequency high power ECRH transmission lines


    Beteiligte:
    Wagner, D. (Autor:in) / Leuterer, F. (Autor:in) / Gantenbein, G. (Autor:in) / Holzhauer, E. (Autor:in) / Kasparek, W. (Autor:in)


    Erscheinungsdatum :

    2004-01-01


    Format / Umfang :

    200759 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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