James Harrison RJ Akers SY Allan JS Allcock JO Allen L Appel M Barnes N Ben Ayed W Boeglin C Bowman J Bradley P Browning P Bryant M Carr M Cecconello CD Challis S Chapman IT Chapman GJ Colyer S Conroy NJ Conway M Cox G Cunningham RO Dendy W Dorland BD Dudson L Easy SD Elmore T Farley X Feng AR Field A Fil GM Fishpool M Fitzgerald
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 PublishedF.J. Casson H. Patten C. Bourdelle S. Breton J. Citrin F. Koechl C. Angioni Y. Baranov R. Bilato E. Belli C.D. Challis G. Corrigan A. Czarnecka O. Ficker L. Garzotti M. Goniche J.P. Graves T. Johnson K. Kirov P. Knight E. Lerche M. Mantsinen J. Mylnar M. Sertoli M. Valisa JET contributors
Preprint Published
D.B. King C.D. Challis E.G. Delabie D. Keeling G.F. Matthews S. Silburn JET contributors
The dependence of JET neutron deficit and energy balance on neutral beam (PINI) selection has been investigated experimentally. The discrepancy between neutrons predicted and measured during JET pulses has consistently deviated, with the measured neutrons typically being lower than expected by simulation. A number of investigations into this hav…
Preprint PublishedS. Pedrazzini A. Khobnya G. Greaves M. Danaie G. D. Brittles S. Speller C. R. M. Grovenor S. E. Donnelly F. Schoofs A. Reilly P. D. Edmondson P. A. J. Bagot
High-temperature superconducting materials are being considered to generate the magnetic fields required for the confinement of plasma in fusion reactors. The present study aims to assess the microstructural degradation resulting from ion implantation at room temperature under two implantation conditions: 0.6 MeV Xe2+ to a fluence of …
PreprintRyan Sperry David T Fullwood Allan Harte Joao Quinta da Fonseca Eric R Homer Robert H Wagoner
Shear strain profiles along slip bands in a modified Rolls-Royce nickel superalloy (RR1000) were analyzed for tensile sample deformed by 2%. The strain increased with distance away from a grain boundary (GB), with maximum shear strain towards the center of the grain, indicating that dislocation nucleation generally occurred in the grain interior. T…
Preprint PublishedAlbert D. Smith Jack M. Donoghue Alistair J.W. Garner David Lunt Allan Harte Keith Wilford Philip J. Withers Michael Preuss
Proton irradiation is often used as a proxy for neutron irradiation but the irradiated layer is typically
Preprint PublishedMichael Gorley Eberhard Diegele Ermile Gaganidze Ferenc Gillemot Gerald Pintsuk
The development of a specific materials database and handbook, for engineering design of in-vessel components of EU-DEMO, is an essential requirement for assessing the structural integrity by design. For key in-vessel materials, including EURFOER97, CuCrZr, Tungsten and dielectric and optical materials, this development has been ongoing now within …
Preprint PublishedStuart 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 …
Preprint PublishedG. J. McArdle L. Pangione M. Kochan
MAST has undergone a substantial upgrade [1], featuring among other things several new poloidal field coils mostly distributed around the new closed-throat divertor structure and an enlarged centre column. The considerable changes have required the plasma control software to be substantially re-written. The MAST digital plasma control system […
Preprint PublishedN. Fil M. Porkolab P. Puglia V. Aslanyan S. Dowson M. Fitzgerald S. E. Sharapov H. K. Sheikh Z. Lin J. Bao P. Blanchard A. Fasoli D. Testa J. Mailloux M. Tsalas M. Maslov A. Whitehead R. Scannell S. Gerasimov S. Dorling T. Blackman G. Jones A. Goodyear K. K. Kirov R. Dumont M. Podesta JET Contributors
The resonant detection and measurement of the damping rates of Alfvén Eigenmodes (AEs) is of critical importance to the design of experiments and development of models of AE stability [1]. With the Alfvén Eigenmodes Active Diagnostic (AEAD) on JET, weakly-damped Toroidal AEs (TAEs) have been probed. Theoretical modeling using the Gyrokinetic Toro…
Preprint Published