Monte-Carlo simulations of runaway electron impact on tokamak plasma-facing components

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F23%3A00370504" target="_blank" >RIV/68407700:21340/23:00370504 - isvavai.cz</a>
Result on the web
—
DOI - Digital Object Identifier
—

Result language
angličtina
Original language name
Monte-Carlo simulations of runaway electron impact on tokamak plasma-facing components
Original language description
During a tokamak discharge, a part of the electrons in plasma can be accelerated to relativistic velocities and energies in order of MeVs. This is due to the decreasing characteristic of the friction force on the electrons with the electron energy, because of the decreasing collisional cross-section for the suprathermal electrons. Electrons accelerated to this regime are called Runaway Electrons (RE). When the RE beam strike the surface of the first wall, they can cause heat loads in the order of hundreds of MW/m2 and damage the plasma-facing components or other tokamak parts. Unlike thermal plasma particles, RE do not deposit their entire energy directly to the surface of plasma-facing components (PFC), but in a certain depth of the material. A part of this energy is converted to heat in the solid material and a part is radiated mainly due to the bremsstrahlung. The rest of the incident energy can be lost in a form of backscattered electrons ejected from the material. The deposition depth of the RE beam energy depends on the first wall material electron stopping power.
Czech name
—
Czech description
—

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)