Impurity transport in tokamak plasmas, theory, modelling and comparison with experiments

C Angioni - Plasma Physics and Controlled Fusion, 2021 - iopscience.iop.org
In this paper, the theory of collisional and turbulent transport of impurities in tokamak
plasmas is reviewed. The results are presented with the aim of providing at the same time a …

Controlling sawtooth oscillations in tokamak plasmas

IT Chapman - Plasma Physics and Controlled Fusion, 2010 - iopscience.iop.org
The sawtooth instability in tokamak plasmas results in a periodic reorganization of the core
plasma. A typical sawtooth cycle consists of a quiescent period, during which the plasma …

Tungsten transport in JET H-mode plasmas in hybrid scenario, experimental observations and modelling

C Angioni, P Mantica, T Pütterich, M Valisa… - Nuclear …, 2014 - iopscience.iop.org
The behaviour of tungsten in the core of hybrid scenario plasmas in JET with the ITER-like
wall is analysed and modelled with a combination of neoclassical and gyrokinetic codes. In …

Impact of nitrogen seeding on confinement and power load control of a high-triangularity JET ELMy H-mode plasma with a metal wall

C Giroud, GP Maddison, S Jachmich, F Rimini… - Nuclear …, 2013 - iopscience.iop.org
This paper reports the impact on confinement and power load of the high-shape 2.5 MA
ELMy H-mode scenario at JET of a change from all carbon plasma-facing components to an …

Energetic ions in ITER plasmas

SD Pinches, IT Chapman, PW Lauber, HJC Oliver… - Physics of …, 2015 - pubs.aip.org
This paper discusses the behaviour and consequences of the expected populations of
energetic ions in ITER plasmas. It begins with a careful analytic and numerical consideration …

Energy-selective confinement of fusion-born alpha particles during internal relaxations in a tokamak plasma

A Bierwage, K Shinohara, YO Kazakov… - Nature …, 2022 - nature.com
Long-pulse operation of a self-sustained fusion reactor using toroidal magnetic containment
requires control over the content of alpha particles produced by DT fusion reactions. On the …

Optimization of ICRH for core impurity control in JET-ILW

E Lerche, M Goniche, P Jacquet, D Van Eester… - Nuclear …, 2016 - iopscience.iop.org
Ion cyclotron resonance frequency (ICRF) heating has been an essential component in the
development of high power H-mode scenarios in the Jet European Torus ITER-like wall (JET …

Progress at JET in integrating ITER-relevant core and edge plasmas within the constraints of an ITER-like wall

C Giroud, S Jachmich, P Jacquet… - Plasma Physics and …, 2015 - iopscience.iop.org
This paper reports the progress made at JET-ILW on integrating the requirements of the
reference ITER baseline scenario with normalized confinement factor of 1, at a normalized …

Reduction of divertor heat load in JET ELMy H-modes using impurity seeding techniques

J Rapp, P Monier-Garbet, GF Matthews, R Sartori… - Nuclear …, 2004 - iopscience.iop.org
The main objective of this paper is investigation of methods for reduction of divertor heat
loads in order to increase the lifetime of divertor tiles in future fusion reactors. Special …

The impact of the ITER-like wall at JET on disruptions

PC De Vries, G Arnoux, A Huber… - Plasma Physics and …, 2012 - iopscience.iop.org
The new full-metal ITER-like wall (ILW) at JET was found to have a profound impact on the
physics of disruptions. The main difference is a significantly lower fraction (by up to a factor …