UKAEA Papers

"The bundle divertor - Part 2 Plasma Properties"

• PE Stott
• CM Wilson
• A Gibson

"The bundle divertor - Part 1 - Magnetic Configuration"

• PE Scott
• CM Wilson
• A Gibson

"The ultraviolet emission spectrum of the solar chromosphere and corona"

• WM Burton
• A Ridgeley
• R Wilson

"Observations of the sun in the extreme ultraviolet"

• WS Black
• D Booker
• WM Burton
• BB Jones
• DB Shenton
• R Wilson

"The spectroscopy of non-thermal plasmas"

• R Wilson

"Simulations of edge localised mode instabilities in MAST-U Super-X tokamak plasmas"

• S.F. Smith
• S.J.P. Pamela
• A. Fil
• M. Hoelzl
• G.T.A. Huijsmans
• A. Kirk
• D. Moulton
• O. Myatra
• A.J. Thornton
• H.R. Wilson

ELM simulations for the MAST-U Super-X tokamak have been obtained, using the JOREK code. The JOREK visco-resistive MHD model has been used to obtain comparisons of divertor configurations. The simulations show a factor 10 decrease in the peak heat flux to the outer target of the Super-X in comparison to a conventional divertor configuration. A roll…

"ELM burn-through predictions for MAST-U Super-X plasmas"

• S.F. Smith
• S.J.P. Pamela
• M. Hölzl
• G.T.A. Huijsmans
• A. Kirk
• D. Moulton
• A.J. Thornton
• H.R. Wilson

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…

"The Impact of Symmetry Breaking on Pedestal Stability of Tokamak Plasmas"

• M.S. Anastopoulos-Tzanis
• C.H. Ham
• H.R. Wilson

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…

"Benchmarking the TGLF turbulent transport code for a Q=10 burning spherical tokamak plasma using GS2"

• B. Patel
• C. Challis
• D. Dickinson
• L. Garzotti
• F. Koechl
• C. Roach
• G. Staebler
• H. Wilson

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 …

"System Studies of Spherical Tokamaks"

• Stuart I. Muldrew
• Hanni Lux
• Tim C. Hender
• Bhavin Patel
• Peter J. Knight
• Garry M. Voss
• Howard R. Wilson

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 …