英国物理学会
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作者:R.J. Akers , C.J. Ham ...
来源:[J].Nuclear Fusion(IF 2.734), 2014, Vol.54 (12)IOP
摘要:An increase in ELM frequency has been demonstrated in MAST by applying resonant magnetic perturbations (RMPs) with toroidal mode number, n RMP = 2, 3, 4, 6. It has been observed that the mitigated ELM frequency increases with the amplitude of the applied field provided...
作者:R.J. Akers , S. Allan ...
来源:[J].Nuclear Fusion(IF 2.734), 2015, Vol.55 (10)IOP
摘要:The Mega Ampère Spherical Tokamak (MAST) programme is strongly focused on addressing key physics issues in preparation for operation of ITER as well as providing solutions for DEMO design choices. In this regard, MAST has provided key results in understanding and optimizing ...
作者:R.J. Akers , S. Allan ...
来源:[J].Nuclear Fusion(IF 2.734), 2017, Vol.57 (10)IOP
摘要:New results from MAST are presented that focus on validating models in order to extrapolate to future devices. Measurements during start-up experiments have shown how the bulk ion temperature rise scales with the square of the reconnecting field. During the current ramp-up, model...
作者:R.J. Akers , S.Y. Allan ...
来源:[J].Nuclear Fusion(IF 2.734), 2019, Vol.59 (11)IOP
摘要:The mega amp spherical tokamak (MAST) was a low aspect ratio device ( R / a = 0.85/0.65 ~ 1.3) with similar poloidal cross-section to other medium-size tokamaks. The physics programme concentrates on addressing key physics issues for the operation of ITER, design of DEMO and...
作者:R.J. Akers , D. King
来源:[J].Nuclear Fusion(IF 2.734), 2019, Vol.59 (1)IOP
摘要:Fishbones are ubiquitous in high-performance JET plasmas and are typically considered to be unimportant for scenario design. However, during recent high-performance hybrid scenario experiments, sporadic and explosive fishbone oscillations with sawtooth reconnection were observed ...
作者:R.J. Akers , A.R. Field ...
来源:[J].Nuclear Fusion(IF 2.734), 2010, Vol.50 (4), pp.045007 (16pp)IOP
摘要:MAST plasmas with a safety factor above unity and a profile with either weakly reversed shear or broad low-shear regions, regularly exhibit long-lived saturated ideal magnetohydrodynamic (MHD) instabilities. The toroidal rotation is flattened in the presence of such perturbations...
作者:R.J. Akers , J. Candy ...
来源:[J].Nuclear Fusion(IF 2.734), 2011, Vol.51 (6), pp.063006 (14pp)IOP
摘要:The formation of internal transport barriers (ITBs) is investigated in MAST spherical tokamak plasmas. The relative importance of equilibrium flow shear and magnetic shear in their formation and evolution is investigated using data from high-resolution kinetic- and q -profi...
作者:R.J. Akers , D.A. Gates ...
来源:[J].Nuclear Fusion(IF 2.734), 2011, Vol.51 (8), pp.083020 (8pp)IOP
摘要:Joint experiments investigating the off-axis neutral beam current drive (NBCD) capability to be utilized for advanced operation scenario development in ITER were conducted in four tokamaks (ASDEX Upgrade (AUG), DIII-D, JT-60U and MAST) through the international tokamak physi...
作者:R.J. Akers , F. Alladio ...
来源:[J].Nuclear Fusion(IF 2.734), 2011, Vol.51 (9), pp.094013 (10pp)IOP
摘要:Major developments on the Mega Amp Spherical Tokamak (MAST) have enabled important advances in support of ITER and the physics basis of a spherical tokamak (ST) based component test facility (CTF), as well as providing new insight into underlying tokamak physics. For example...

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