Time-nonlocal kinetic equations, jerk and hyperjerk in plasmas and solar physics

RA El-Nabulsi - Advances in Space Research, 2018 - Elsevier
The simulation and analysis of nonlocal effects in fluids and plasmas is an inherently
complicated problem due to the massive breadth of physics required to describe the …

Contrasting H-mode behaviour with deuterium fuelling and nitrogen seeding in the all-carbon and metallic versions of JET

GP Maddison, C Giroud, B Alper, G Arnoux… - Nuclear …, 2014 - iopscience.iop.org
The former all-carbon wall on JET has been replaced with beryllium in the main torus and
tungsten in the divertor to mimic the surface materials envisaged for ITER. Comparisons are …

Pedestal evolution physics in low triangularity JET tokamak discharges with ITER-like wall

C Bowman, D Dickinson, L Horvath, AE Lunniss… - Nuclear …, 2017 - iopscience.iop.org
The pressure gradient of the high confinement pedestal region at the edge of tokamak
plasmas rapidly collapses during plasma eruptions called edge localised modes (ELMs) …

[HTML][HTML] Relationship of edge localized mode burst times with divertor flux loop signal phase in JET

SC Chapman, RO Dendy, TN Todd, NW Watkins… - Physics of …, 2014 - pubs.aip.org
A phase relationship is identified between sequential edge localized modes (ELMs)
occurrence times in a set of H-mode tokamak plasmas to the voltage measured in full flux …

[HTML][HTML] The global build-up to intrinsic edge localized mode bursts seen in divertor full flux loops in JET

SC Chapman, RO Dendy, TN Todd, NW Watkins… - Physics of …, 2015 - pubs.aip.org
A global signature of the build-up to an intrinsic edge localized mode (ELM) is found in the
temporal analytic phase of signals measured in full flux azimuthal loops in the divertor …

Processes and properties of edge-localised instabilities in 2T 2MA plasmas in the Joint European Torus

AJ Webster, SJ Webster, JET-EFDA Contributors - Physics of Plasmas, 2014 - pubs.aip.org
During July 2012, 150 almost identical H-mode plasmas were consecutively created in the
Joint European Torus, providing a combined total of approximately 8 minutes of steady-state …

Delay time embedding of mass loss avalanches in a fusion plasma-oriented sandpile model

CA Bowie, RO Dendy, MJ Hole - Physics of Plasmas, 2016 - pubs.aip.org
The sandpile paradigm is widely used to model aspects of the phenomenology of
magnetically confined fusion (MCF) plasmas, including enhanced confinement, edge …

Resonant-like behaviour during edge-localised mode cycles in the Joint European Torus

AJ Webster, J Morris, TN Todd, S Brezinsek… - Physics of …, 2015 - pubs.aip.org
A unique sequence of 120 almost identical plasmas in the Joint European Torus (JET)
recently provided two orders of magnitude more statistically equivalent data than ever …

The global build-up to intrinsic ELM bursts and comparison with pellet triggered ELMs seen in JET

SC Chapman, RO Dendy, PT Lang, NW Watkins… - Nuclear …, 2016 - iopscience.iop.org
We focus on JET plasmas in which ELMs are triggered by pellets in the presence of ELMs
which occur naturally. We perform direct time domain analysis of signals from fast radial field …

Intrinsic ELMing in ASDEX Upgrade and global control system-plasma self-entrainment

SC Chapman, PT Lang, RO Dendy, NW Watkins… - Nuclear …, 2018 - iopscience.iop.org
It is well established that edge localized modes can be entrained to the frequency of applied
global magnetic perturbations. These perturbations are delivered to the plasma using the …