Conference Papers

Showing 1 - 5 of 5 Conference Paper Results
2019
UKAEA-CCFE-CP(19)53
46th European Physical Society Conference on Plasma Physics (EPS), Milan, 8-12 July 2019

During edge localised modes (ELMs) high heat fluxes are incident on divertor targets, which future fusion devices will not withstand [1]. A solution to reduce the heat fluxes could be the new Super-X divertor, which will be tested on the MAST-U tokamak. The divertor has an increased connection length, magnetic flux expansion and is designed to reta…

Preprint
2019
UKAEA-CCFE-CP(19)51
46th European Physical Society Conference on Plasma Physics (EPS), Milan, 8-12 July 2019

H-mode tokamak plasmas are typically characterised by quasi-periodic instabilities called edge localised modes (ELMs) driven by unstable peeling-ballooning modes [1]. For large scale fusion power plants, the predicted particle and heat fluxes are unacceptable, and an active ELM control method is required. One promising method relies on t…

Preprint
2019
UKAEA-CCFE-CP(19)47
46th European Physical Society Conference on Plasma Physics (EPS), Milan, 8-12 July 2019

Spherical Tokamaks (STs) could provide a route towards a compact fusion reactor due to advantageous properties such as high plasma beta. A GW-scale ST plasma is explored where Q=10 and R=2.5m. In this design 110 MW of NBI is needed to provide 9 MA of noninductive current, where the remaining 12 MA is pressure driven. To penetrate into the core a 1 …

Preprint
2019
UKAEA-CCFE-CP(19)45
14th International Symposium on Fusion Nuclear Technology (ISFNT-14) Budapest,Hungary, 22-27 September 2019

Spherical Tokamaks offer a number of potential advantages for a future fusion power plant. They have a high ratio of thermal to magnetic field pressure (beta) and strong flows, either of which could result in reduced turbulence. Fewer Toroidal Field (TF) coils and a different geometry offers the potential for new methods of remote maintenance …

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

The nonlinear phase of MHD ballooning modes determines whether they are essentially benign or disruptive. Disruptive or hard limits are produced by ballooning modes across magnetic confinement fusion, for example; as ELMs, some tokamak disruptions [1], and perhaps the LHD Core Density Collapse [2]. This work improves our understanding of how these …

Preprint