A PIC-MCC code RFdinity1d for simulation of discharge initiation by ICRF antenna
M. Tripský, T. Wauters, A. Lyssoivan, V. Bobkov, P.A. Schneider, I. Stepanov, D. Douai, D. Van Eester, J.-M. Noterdaeme, M. Van Schoor, ASDEX Upgrade Team, EUROfusion MST1 Team
Abstract
Discharges produced and sustained by ion cyclotron range of frequency (ICRF) waves in absence of plasma current will be used on ITER for (ion cyclotron-) wall conditioning (ICWC, T-e = 3-5 eV, n(e) > |E-z(P)|). At higher densities, when the electrostatic field E-z(P) is comparable to the antenna RF field E-z(RF), the ionization frequency reaches the maximum. Plasma oscillations propagating toroidally away from the antenna are observed. The simulated energy distributions of ions and electrons at n(e) similar to 10(15) m(-3) correspond a power-law Kappa energy distribution. This energy distribution was also observed in NPA measurements at ASDEX Upgrade in ICWC experiments.
BibTeX
@article{Tripsk__2017,
title={A PIC-MCC code RFdinity1d for simulation of discharge initiation by ICRF antenna},
volume={57},
ISSN={1741-4326},
url={http://dx.doi.org/10.1088/1741-4326/aa8446},
DOI={10.1088/1741-4326/aa8446},
number={12},
journal={Nuclear Fusion},
publisher={IOP Publishing},
author={Tripský, M. and Wauters, T. and Lyssoivan, A. and Bobkov, V. and Schneider, P.A. and Stepanov, I. and Douai, D. and Van Eester, D. and Noterdaeme, J.-M. and Van Schoor, M.},
year={2017},
month=oct,
pages={126043} }