Speaker
Description
Resonant interaction with the microwave radiation in
ECRIS plasma leads to a strongly anisotropic electron
energy distribution function (EEDF), given as a
combination of two to three electron populations,
with the possibility to trigger kinetic instabilities. At
the INFN, further efforts have been paid to improve
and update self-consistent 3D numerical codes for
plasma electrons kinetics. Progresses have opened
several perspectives. It is now possible to derive
space-resolved EEDF, and compute space-dependent
energy and density maps. Also, the code has been
updated to provide reaction rates of electromagnetic
emissions, including X-ray fluorescence. An estimate
of the local ion charge state distribution is potentially
possible, and first evaluations are ongoing. Dealing
with fast-transient mechanisms, such as
electromagnetic emission via the electron-cyclotron
MASER instability, the code is now updated for locally
evaluating the EEDF anisotropy. We will present the
collected results, which we believe to have a relevant
impact both on the ECRIS plasma physics and on the
INFN's PANDORA project that plans to use ECR
plasmas for fundamental studies in Nuclear and
AstroNuclear Physics.