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Overview of recent physics results from MAST.

Kirk, A. and Adamek, J. and Akers, R. and Allan, S. and Appel, L. and Arese Lucini, F. and Barnes, M. and Barrett, T. and Ben Ayed, N. and Boeglin, W. and Bradley, J. and Browning, P. and Brunner, J. and Cahyna, P. and Carr, M. and Casson, F. and Cecconello, M. and Challis, C. and Chapman, I. and Chapman, S. and Conroy, S. and Conway, N. and Cooper, W. and Cox, M. and Crocker, N. and Crowley, B. and Cardnell, S. and Chorley, J. and Cunningham, G. and Danilov, A. and Darrow, D. and Dendy, R. and Dickinson, D. and Dorland, W. and Dudson, B. and Easy, L. and Elmore, S. and Evans, M. and Farley, T. and Fedorczak, N. and Field, A. and Fitzgerald, I. and Fox, M. and Freethy, S. and Garzotti, L. and Ghim, Y. and Gi, K. and Gorelenkova, M. and Gracias, W. and Gurl, C. and Guttenfelder, W. and Ham, C. and Harting, D. and Havlickova, E. and Hawkes, N. and Hender, T. and Henderson, S. and Hillesheim, J. and Hnat, B. and Horacek, J. and Howard, J. and Howell, D. and Dunai, D. and Fishpool, G. and Gibson, K. and Harrison, J. and Highcock, E. and Huang, B. and Inomoto, M. and Imazawa, R. and Jones, O. and Kadowaki, K. and Kaye, S. and Keeling, D. and Kocan, M. and Kogan, L. and Komm, M. and Lai, W. and Leddy, J. and Leggate, H. and Imada, K. and Klimek, I. and Hollocombe, J. and Lipschultz, B. and Lisgo, S. and Liu, Y. and Lloyd, B. and Lomanowski, B. and Lukin, V. and Maddison, G. and Madsen, J. and Mailloux, J. and Martin, R. and McArdle, G. and Lupelli, I. and McClements, K. and McMillan, B. and Meakins, A. and Meyer, H. and Michael, C. and Militello, F. and Milnes, J. and Motojima, G. and Muir, D. and Naylor, G. and Nielsen, A. and O'Brien, M. and O'Mullane, M. and Olsen, J. and Omotani, J. and Ono, Y. and Pamela, S. and Morris, A. and O'Gorman, T. and Pangione, L. and Parra, F. and Patel, A. and Peebles, W. and Perez, R. and Pinches, S. and Piron, L. and Price, M. and Reinke, M. and Ricci, P. and Riva, F. and Roach, C. and Romanelli, M. and Ryan, D. and Saarelma, S. and Saveliev, A. and Scannell, R. and Schekochihin, A. and Sharapov, S. and Sharples, R. and Shevchenko, V. and Shinohara, K. and Silburn, S. and Simpson, J. and Stanier, A. and Storrs, J. and Summers, H. and Takase, Y. and Tamain, P. and Tanabe, H. and Tanaka, H. and Tani, K. and Taylor, D. and Thomas, D. and Thomas-Davies, N. and Thornton, A. and Turnyanskiy, M. and Valovic, M. and Vann, R. and Van Wyk, F. and Walkden, N. and Watanabe, T. and Wilson, H. and Wischmeier, M. and Yamada, T. and Young, J. and Zoletnik, S. and the MAST Team, and the EUROfusion MST1 Team, (2016) 'Overview of recent physics results from MAST.', Nuclear fusion., 57 (10). p. 102007.


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 models are not able to correctly predict the current diffusion. Experiments have been performed looking at edge and core turbulence. At the edge detailed studies have revealed how filament characteristic are responsible for determining the near and far SOL density profiles. In the core the intrinsic rotation and electron scale turbulence have been measured. The role that the fast ion gradient has on redistributing fast ions through fishbone modes has led to a redesign of the neutral beam injector on MAST Upgrade. In H-mode the turbulence at the pedestal top has been shown to be consistent with being due to electron temperature gradient modes. A reconnection process appears to occur during ELMs and the number of filaments released determines the power profile at the divertor. Resonant magnetic perturbations can mitigate ELMs provided the edge peeling response is maximised and the core kink response minimised. The mitigation of intrinsic error fields with toroidal mode number n>1 has been shown to be important for plasma performance.

Item Type:Article
Full text:(AM) Accepted Manuscript
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Publisher statement:This is an author-created, un-copyedited version of an article published in Nuclear Fusion. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at 10.1088/1741-4326/aa65e0
Date accepted:10 March 2017
Date deposited:07 December 2016
Date of first online publication:20 June 2017
Date first made open access:20 June 2018

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