73 citations · 275 across the 7 of their papers we have counts for
7 papers
DREAM: a fluid-kinetic framework for tokamak disruption runaway electron simulations
M. Hoppe, O. Embreus, T. Fülöp
Avoidance of the harmful effects of runaway electrons (REs) in plasma-terminating disruptions is pivotal in the design of safety systems for magnetic fusion devices. Here, we descr…
Dynamics of positrons during relativistic electron runaway
Ola Embréus, Linnea Hesslow, Mathias Hoppe +3
Sufficiently strong electric fields in plasmas can accelerate charged particles to relativistic energies. In this paper we describe the dynamics of positrons accelerated in such el…
Measurements of runaway electron synchrotron spectra at high magnetic fields in Alcator C-Mod
R. A. Tinguely, R. S. Granetz, M. Hoppe +1
In the Alcator C-Mod tokamak, runaway electron (RE) experiments have been performed during low density, flattop plasma discharges at three magnetic fields: 2.7, 5.4, and 7.8 T, the…
Effect of partially ionized impurities and radiation on the effective critical electric field for runaway generation
Linnea Hesslow, Ola Embréus, George J Wilkie +2
We derive a formula for the effective critical electric field for runaway generation and decay that accounts for the presence of partially ionized impurities in combination with sy…
Effect of partially-screened nuclei on fast-electron dynamics
Linnea Hesslow, Ola Embréus, Adam Stahl +4
We analyze the dynamics of fast electrons in plasmas containing partially ionized impurity atoms, where the screening effect of bound electrons must be included. We derive analytic…
Effect of bremsstrahlung radiation emission on fast electrons in plasmas
Ola Embréus, Adam Stahl, Tünde Fülöp
Bremsstrahlung radiation emission is an important energy loss mechanism for energetic electrons in plasmas. In this paper we investigate the effect of spontaneous bremsstrahlung em…
Guiding-center transformation of the radiation-reaction force in a nonuniform magnetic field
Eero Hirvijoki, Joan Decker, Alain Brizard +1
In this paper, we present the guiding-center transformation of the radiation-reaction force of a classical point charge traveling in a nonuniform magnetic field. The transformation…