Conference Papers

Showing 1 - 4 of 4 Conference Paper Results
2020
UKAEA-CCFE-CP(21)05
28th IAEA Fusion Energy Conference, Nice, France, 10-15th May 2021

The pedestal plays an important role in determining the confinement in tokamak H-mode plasmas. However, the steep pressure gradients in this transport barrier also lead to edge localized modes (ELMs) [1]. There is good understanding of the pedestal in type I ELM regimes [2], however, type I ELMs are known to damage plasma facing components and futu…

Preprint
2019
UKAEA-CCFE-CP(19)36
46th European Physical Society Conference on Plasma Physics (EPS), Milan, 8-12 July 2019

Intense suprathermal radiation, with spectral peaks at multiple harmonics of the deuteron cyclotron frequency, is detected from the outer midplane edge of KSTAR deuterium plasmas that are heated by tangential neutral beam injection (NBI) of 100keV deuterons. We identify how this deuterium ion cyclotron emission (ICE) is generated, and distinguish t…

Preprint Published
2019
UKAEA-CCFE-CP(19)14
45th European Physical Society Conference on Plasma Physics (EPS), Prague, 2-6 July 2018

During ELM crashes in deuterium plasmas in the KSTAR tokamak, the emitted electromagnetic radiation includes features with sharp spectral structure in the frequency range up to ~900MHz. Cases where the spectral peaks below ~500MHz correspond to proton cyclotron harmonics at the outer midplane edge are explained (B Chapman et al., Nucl.…

Preprint Published
2018
UKAEA-CCFE-CP(18)03
27th IAEA Fusion Energy Conference, Ahmedabad, India, 22-27 October 2018

Recent results from MAST address key physics issues for ITER operations and the design of future devices, by advancing our understanding of through analysis of high-resolution data and numerical modelling. Modelling of the interaction between filaments with BOUT++ indicates filaments separated by more than 5x their width move independently, and …

Preprint Published