Search for dissertations about: "runaway mitigation"
Showing result 1 - 5 of 7 swedish dissertations containing the words runaway mitigation.
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1. The role of magnetic perturbations in runaway electron and sawtooth dynamics
Abstract : 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. READ MORE
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2. Disruption Mitigation in Tokamaks with Massive Material Injection
Abstract : The sudden loss of confinement of the energy content of fusion plasmas in off-normal events, called disruptions, is among the most severe threats to the future of fusion energy based on the tokamak design. An efficient disruption mitigation system will therefore be of utmost importance for future large, high-current devices such as ITER. READ MORE
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3. Simulation of runaway electron generation during plasma shutdown by impurity injection
Abstract : 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. READ MORE
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4. Effect of Partial Screening on Runaway-Electron Dynamics
Abstract : One of the essential results of kinetic plasma physics is the runaway phenomenon: sufficiently large electric fields can accelerate a fraction of an electron population to relativistic energies. While such runaway electrons are fundamentally interesting objects of study in astrophysical settings, they are also of great practical relevance to fusion research. READ MORE
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5. Simulation and analysis of radiation from runaway electrons
Abstract : Electron runaway constitutes one of the primary threats to future tokamak fusion reactors such as ITER. Successful prevention and mitigation of runaways relies on the development of theoretical models which accurately describe the dynamics of runaway electrons, and these models must in turn be validated in experiments. READ MORE