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  • Effect of ferromagnetic structures on RWM growth rates : a cylindrical model and a verification on JET
    Pustovitov, V.D. ...
    The resistive wall mode (RWM) dispersion relation is analytically derived for a cylindrical plasma surrounded by two wallsČ the first wall (facing the plasma) is assumed thin (geometrically and ... magnetically) and resistive, while the second wall of larger radius is ferromagnetic, but non-conductive. The predictions of this simplified model are verified on the JET tokamak by a comparison with the calculations of a linearized axisymmetric plasma response model. In this case, it is found that, assuming all active and passive conducting structures as short circuited, the presence of iron causes a constant increase in the n = 0 RWM growth rate of around 25 s(-1), independently of the plasma configuration under study.
    Source: Plasma physics and controlled fusion. - ISSN 0741-3335 (Iss. 6, Vol. 52, 2010, 065010-1-065010-12)
    Type of material - article, component part
    Publish date - 2010
    Language - english
    COBISS.SI-ID - 24739879

source: Plasma physics and controlled fusion. - ISSN 0741-3335 (Iss. 6, Vol. 52, 2010, 065010-1-065010-12)
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