The influence of finite drift orbit width on ICRF heating in toroidal plasmas

J Hedin, T Hellsten, LG Eriksson, T Johnson - Nuclear Fusion, 2002 - iopscience.iop.org
Ion cyclotron resonance heating in a toroidal plasma not only increases the perpendicular
energy of the resonating ions but also results in their spatial transport. Depending on the …

Modelling third harmonic ion cyclotron acceleration of deuterium beams for JET fusion product studies experiments

M Schneider, T Johnson, R Dumont, J Eriksson… - Nuclear …, 2016 - iopscience.iop.org
Recent JET experiments have been dedicated to the studies of fusion reactions between
deuterium (D) and Helium-3 (3 He) ions using neutral beam injection (NBI) in synergy with …

Global-wave solutions with self-consistent velocity distributions in ion cyclotron heated plasmas

EF Jaeger, RW Harvey, LA Berry, JR Myra… - Nuclear …, 2006 - iopscience.iop.org
Global wave solutions with self-consistent velocity distributions are calculated for ion
cyclotron heating in non-Maxwellian plasmas. The all-orders spectral algorithm (AORSA) …

Self-consistent full-wave and Fokker-Planck calculations for ion cyclotron heating in non-Maxwellian plasmas

EF Jaeger, LA Berry, SD Ahern, RF Barrett… - Physics of …, 2006 - pubs.aip.org
Magnetically confined plasmas can contain significant concentrations of nonthermal plasma
particles arising from fusion reactions, neutral beam injection, and wave-driven diffusion in …

Effects of finite drift orbit width and RF-induced spatial transport on plasma heated by ICRH

T Hellsten, T Johnson, J Carlsson, LG Eriksson… - Nuclear …, 2004 - iopscience.iop.org
The effects of RF-induced transport and orbit topology of resonant ions are analysed for high
power ion cyclotron resonance heating (ICRH). These effects are found to play important …

Effect of poloidal phasing on ion cyclotron resonance heating power absorption

P Vallejos, T Johnson, R Ragona, T Hellsten… - Nuclear …, 2019 - iopscience.iop.org
Two ion cyclotron resonance heating (ICRH) systems are planned for ITER, each system
containing 24 antennas distributed as a two by four array of poloidal triplets. The ITER …

Isotope mass scaling of AE damping rates in the JET tokamak plasmas

A Fasoli, A Jaun, D Testa - Physics Letters A, 2000 - Elsevier
The damping of radially extended Alfvén eigenmodes in tokamak plasmas is investigated in
JET discharges with different ion mass. The comparison of damping measurements with …

Prediction of Alfvén eigenmode dampings in the Joint European Torus

A Jaun, A Fasoli, WW Heidbrink - Physics of Plasmas, 1998 - pubs.aip.org
Predictions from a gyrokinetic toroidal plasma model reproduce for the first time the
evolution of Alfvén eigenmode (AE) dampings over a range of discharges. The coupling …

Power requirements for electron cyclotron current drive and ion cyclotron resonance heating for sawtooth control in ITER

IT Chapman, JP Graves, O Sauter, C Zucca… - Nuclear …, 2013 - iopscience.iop.org
Abstract 13 MW of electron cyclotron current drive (ECCD) power deposited inside the q= 1
surface is likely to reduce the sawtooth period in ITER baseline scenario below the level …

MeV-range fast ion losses induced by fishbones on JET

CP Von Thun, A Perona, T Johnson… - Nuclear …, 2010 - iopscience.iop.org
Energy and pitch angle resolved measurements of highly energetic (megaelectronvolt (MeV)
range) suprathermal ions ejected from the plasma through interaction with fishbone …