Dr
Jeronimo Garcia
(CEA IRFM)
25/10/2018, 08:30
THD - Magnetic Confinement Theory and Modelling: Plasma–material interactions; divertors, limiters, SOL
Oral
Predictability of burning plasmas is a key issue for designing and building credible future fusion devices. The integration of several physics aspects is mandatory for an accurate extrapolation from present day plasmas, mainly with deuterium (D) as the main ion species, to conditions in which the ion mixture will be dominated by Deuterium-Tritium (DT).
In this framework, an important effort...
Prof.
Kenichi Nagaoka
(National Institute for Fusion Science)
25/10/2018, 08:50
EXD - Magnetic Confinement Experiments: Plasma–material interactions; divertors; limiters; scrape-off layer (SOL)
Oral
A remarkable achievement of $T_{\rm i0} = 10$ keV with $Z_{\rm eff} = 2$ was obtained in Large Helical Device (LHD). In order to clarify transport characteristics in ion internal transport barrier (ion ITB) formation with isotope effect, a dataset of pure deuterium (D) ($n_{\rm D}/n_{\rm e} > 0.85$) and pure hydrogen (H) ($n_{\rm H}/n_{\rm e} > 0.85$) plasmas for high-ion-temperature...
Dr
Francis Casson
(CCFE, Culham Science Centre, Abingdon, UK)
25/10/2018, 09:10
THD - Magnetic Confinement Theory and Modelling: Plasma–material interactions; divertors, limiters, SOL
Oral
The evolution of the JET high performance hybrid scenario, including central accumulation of the tungsten (W) impurity, is reproduced with predictive multi-channel integrated modelling over multiple confinement times using first-principle based models. 8 transport channels ($T_i,T_e,n_D,n_{Be},n_{Ni},v_{tor},j$) are modelled predictively with self-consistent predictions for sources, radiation,...
Dr
Nobuhiko Hayashi
(National Institutes for Quantum and Radiological Science and Technology)
25/10/2018, 09:30
PPC - Plasma Overall Performance and Control
Oral
Plasmas and their operation scenarios have been predicted by using integrated modelling codes towards the exploitation of JT-60SA experiment. Through the close collaboration between Japan and EU including the model validation and verification using JT-60U and JET experimental data, the following key results were obtained in various modelling activities. Improved modelling predicted a...
Dr
Colin Chrystal
(General Atomics)
25/10/2018, 09:50
EXD - Magnetic Confinement Experiments: Plasma–material interactions; divertors; limiters; scrape-off layer (SOL)
Oral
Toroidal rotation in ITER is predicted with a combination of intrinsic and NBI sources and gyrofluid modeling of momentum transport, and it is found to play a significant role in enhancing D-T fusion performance. In a large tokamak such as ITER, intrinsic sources of rotation as well as rotation drive from applied 3D fields will become more significant due to a relatively low amount of neutral...
