Sökning: "Extrap T2R"

Visar resultat 6 - 10 av 16 avhandlingar innehållade orden Extrap T2R.

  1. 6. 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

  3. 7. Spectroscopic diagnistic of fusion plasma at the reversed-field pinch EXTRAP-T2R

    Författare :Bob Gravestijn; KTH; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  4. 8. Closed-loop control and identification of resistive shell magnetohydrodynamics for the reversed-field pinch

    Författare :Erik Olofsson; Per Brunsell; Wolfgang Suttrop; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Plasma physics with fusion; Plasmafysik med fusion; Automatic control; Reglerteknik;

    Sammanfattning : It is demonstrated that control software updates for the magnetic confinement fusion experiment EXTRAP T2R can enable novel studies of plasma physics. Specifically, it is shown that the boundary radial magnetic field in T2R can be maintained at finite levels by feedback. LÄS MER

  5. 9. Resistive Wall Mode Stability and Control in the Reversed Field Pinch

    Författare :Dmitriy Yadikin; Per Brunsell; Mikhail Gryaznevich; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Resistive wall modes; RWM; active control; feedback; MHD modes; Reversed-Field pinch; RFP; intelligent shell; mode control; Electrophysics; Elektrofysik;

    Sammanfattning : Control of MHD instabilities using a conducting wall together with external magnetic fields is an important route to improved performance and reliability in fusion devices. Active control of MHD modes is of interest for both the Advanced Tokamak and the Reversed Field Pinch (RFP) configurations. LÄS MER

  7. 10. Impact of erosion and deposition processes on wall materials in tokamaks

    Författare :Sunwoo Moon; Marek Rubel; Per Petersson; Wolff Max; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : Understanding of material migration and control of fuel retention are essential for the safe operation of a reactor-class fusion machine. Work presented in the thesis focuses on erosion-deposition processes which are decisive for the formation and properties of co-deposited fuel-containing layers on plasma-facing and diagnostic components, and for the dust formation. LÄS MER