Sökning: "Reversed-Field Pinch"

Visar resultat 21 - 25 av 26 avhandlingar innehållade orden Reversed-Field Pinch.

  1. 21. Diagnostics for advanced fusion plasma scenarios

    Författare :Mattias Kuldkepp; Elisabeth Rachlew-Källne; Fritz Wagner; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MSE; PEM; mirror evolution; fusion; diagnostics; plasma spectroscopy; reversed field pinch; spherical tokamak; intelligent shell; PPCD; MAST; ITER; Molecular physics; Molekylfysik;

    Sammanfattning : Over the past decade, fusion research has showed the potential of being a main candidate for energy production for future generations. Further advances in improved fusion performance are therefore vital. This thesis focuses on advanced fusion plasma scenarios and their diagnostic requirements. LÄS MER

  3. 22. Stabilisation of resistive-wall modes in fusion plasmas

    Författare :Demetrio Gregoratto; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; electromagnetic feedback control; Tokamak; resistive-wall mode; reversed field pinch; MHD;

    Sammanfattning : For the success of thermonuclear fusion by magnetic confinement it is important to improve on the stability limits imposed by large-scale magnetohydrodynamics (MHD) instabilities. This thesis focuses on the stabilisation of the "resistive-wall mode" (RWM), an instability which affects high-pressure tokamaks but also Reversed Field Pinches (RFP). LÄS MER

  4. 23. Tearing mode dynamics in the presence of resonant magnetic perturbations

    Författare :Richard Fridström; Per Brunsell; Marco Cecconello; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Tearing mode; plasma; fusion; reversed-field pinch; RFP; magnetic; confinement; resonant; perturbation; magnetohydrodynamics; MHD; EXTRAP T2R; Madison Symmetic Torus; Fysik; Physics;

    Sammanfattning : Magnetically confined fusion (MCF) plasmas are typically subject to several unstable modes. The growth of one mode can limit the plasma energy confinement and might cause a termination of the plasma. Externally applied resonant magnetic perturbations (RMPs) are used to control and to mitigate some of the unstable modes. LÄS MER

  5. 24. Magnetohydrodynamic spectroscopy of magnetically confined plasmas

    Författare :Eva Sallander; KTH; []
    Nyckelord :EXTRAP-T2; T2R; reversed-field pinch; W7-AS; stellarator; fluctuations; magnetohydrodynamic spectroscopy; tearing mode; plasma; confinement;

    Sammanfattning : .... LÄS MER

  7. 25. Theory of Ion Temperature Gradient Driven Instabilities: Threshold and Transport

    Författare :Shi Chong Guo; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : The object of this thesis is the theory of the ion temperature gradient driven (ITGD) mode, including instabilities, thresholds and associated anomalous transport. The linear threshold has been investigated both analytically and numerically in various parameter domains. LÄS MER