Sökning: "runaway electron"

Visar resultat 1 - 5 av 16 avhandlingar innehållade orden runaway electron.

  1. 1. Runaway electrons in tokamak plasmas

    Författare :Fredrik Andersson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; tokkamak disruption; runaway electron; two-way diffusion equation;

    Sammanfattning : .... LÄS MER

  3. 2. The role of magnetic perturbations in runaway electron and sawtooth dynamics

    Författare :Gergely Papp; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; magnetic perturbation; fusion plasma physics; runaway mitigation; sawtooth oscillation; tokamak; runaway electrons;

    Sammanfattning : As the world's fusion energy program is increasingly focused towards burning plasma experiments, it is important to address the remaining theoretical issues. In this thesis we focus on the effect of magnetic perturbations on the radial plasma transport. LÄS MER

  4. 3. The role of magnetic perturbations in runaway electron and sawtooth dynamics

    Författare :Gergely Papp; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; tokamak; runaway electron; sawtooth oscillation; magnetic perturbation; MHD mode; fusion plasma physics;

    Sammanfattning : Nuclear fusion in tokamaks is a possible future energy production mechanism. Some of the still unsolved problems are connected to the effect of magnetic perturbations on the radial plasma transport. Two such problems are addressed in this thesis. LÄS MER

  5. 4. Simulation of runaway electron generation during plasma shutdown by impurity injection

    Författare :Tamás Fehér; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; disruption mitigation; fusion plasma physics; impurity injection; runaway electron; tokamak;

    Sammanfattning : Disruptions are dangerous instabilities in tokamaks that should be avoided or mitigated. One possible disruption mitigation method is to inject impurities into the plasma to shut it down in a controlled way. Runaway Electrons (REs) can be generated after the plasma is cooled down bythe impurities and these electrons can damage the tokamak. LÄS MER

  7. 5. Kinetic modeling of runaway-electron dynamics in partially ionized plasmas

    Författare :Linnea Hesslow; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; runaway electrons; tokamaks; plasma physics; magnetic confinement fusion; electron-ion collisions; Fokker-Planck equation;

    Sammanfattning : An essential result of kinetic plasma physics is the runaway phenomenon, whereby a fraction of an electron population can be accelerated to relativistic energies. Such runaway electrons are formed in astrophysical settings, but are also of great practical relevance to fusion research. LÄS MER