Collisionless pitch-angle scattering of runaway electrons
نویسندگان
چکیده
منابع مشابه
Runaway electrons and ITER
The potential for damage, the magnitude of the extrapolation, and the importance of the atypical—incidents that occur once in a thousand shots—make theory and simulation essential for ensuring that relativistic runaway electrons will not prevent ITER from achieving its mission. Most of the theoretical literature on electron runaway assumes magnetic surfaces exist. ITER planning for the avoidanc...
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In a tokamak disruption, a substantial fraction of the plasma current can be converted into runaway electrons. Although these are usually highly relativistic, their total energy is initially much smaller than that of the pre-disruption plasma. However, following a suggestion by Putvinski et al. [Plasma Phys. Control. Fusion 39, B157 (1997)], it is shown that as the post-disruption plasma drifts...
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It is widely believed that electron dynamics in the shock front is essentially collisionless and determined by the quasistationary magnetic and electric ®elds in the shock. In thick shocks the electron motion is adiabatic: the magnetic moment is conserved throughout the shock and v? / B. In very thin shocks with large cross-shock potential (the last feature is typical for shocks with strong ele...
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Highly relativistic runaway electrons are of great concern in the area of fusion energy research, since their presence in tokamak plasmas have the potential to hinder the successful and stable operation of the device, and potentially cause severe structural damage. In this thesis, runaway electron generation dynamics is investigated using the newly developed efficient computational tool CODE. A...
متن کاملSelf-consistent analysis of the effect of runaway electrons
Physical and computational models are developed, used and benchmarked for studying the response of ITER tokamak plasma facing components to runaway electron impact following a plasma disruption. The energy deposition, temperature evolution and material melting thickness are calculated for a wide range of runaway electron parameters, namely, electron kinetic energy, magnetic field, energy partit...
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ژورنال
عنوان ژورنال: Nuclear Fusion
سال: 2016
ISSN: 0029-5515,1741-4326
DOI: 10.1088/0029-5515/56/6/064002