Lawrence Shere Alfred K. Hill Timothy J. Mays Rachel Lawless Rosemary Brown Semali P. Perera
The separation of hydrogen isotopes is a vital step in preparing tritium and deuterium fuels for future fusion energy plants. This represents a fundamental challenge to fusion energy since the separation process must be able to handle high throughputs of hydrogen isotopes with a low tritium inventory, as tritium is highly radioactive and hazardo…
PublishedC J Ham P E Farrell
The Grad–Shafranov equation for axisymmetric MHD equilibria is a nonlinear, scalar PDE which in principle can have zero, one or more non-trivial solutions. The conditions for the existence of multiple solutions has been little explored in the literature so far. We develop a simple analytic model to calculate multiple solutions in the large asp…
PreprintChris Brown Hanni Lux James Cowan
Developments in fusion energy technology and the aspiration to build and run commercial fusion energy power plants has seen the commencement of numerous publicly and privately funded projects in recent years. Megaprojects, like fusion power plants, by their very nature are inherently complex and risky, therefore providing a robust cost estimate in …
PreprintDaniel Padrão David Hancock James Paterson Frank Schoofs Christopher Tuck Ian Maskery
Heat sinks have manifold applications, from micro-electronics to nuclear fusion reactors. Their performance expectations will continue to increase in line with the power consumption and miniaturisation of technology. Additive manufacturing enables the creation of novel, compact heat sinks with greater surface-to-volume ratios and geometrical comple…
Preprint PublishedO. Myatra D. Moulton B. Dudson S. Newton B. Lipschultz K. Verhaegh A. Fil
The role of ion-molecule elastic collisions (specifically D+−D2 collisions) in strongly detached divertor conditions has been studied in the MAST-U Super-X configuration using SOLPS-ITER. Two strongly detached steady state solutions, one obtained through a main-ion (D2) fuelling scan and the other through an impurity (N) seeding scan at fixed fue…
PreprintD. Padrao D. Hancock J. Paterson F. Schoofs C. Tuck M. Magnini I. Maskery
Heat exchangers have manifold applications, from micro-electronics to nuclear fusion reactors. Their performance expectations will continue to increase in line with the power consumption and miniaturisation of technology. Additive manufacturing enables the creation of novel, compact heat exchangers with greater surface-to-volume ratios and geometri…
PreprintWilliam Iliffe Kirk Adams Nianhua Peng Greg Brittles Rod Bateman Aidan Reilly Chris Grovenor Susannah Speller
Commercial fusion power plants will require strong magnetic fields that can only be achieved using state-of-the-art high temperature superconductors in the form of REBCO coated conductors. In operation in a fusion machine, the magnet windings will be exposed to fast neutrons that are known to adversely affect the superconducting properties of RE…
Preprint PublishedOzan Tokatli Pragna Das Radhika Nath Luigi Pangione Alessandro Altobelli Guy Burroughes Robert Skilton
The nuclear industry has some of the most extreme environments in the world, with radiation levels and extremely harsh conditions restraining human access to many facilities. One method for enabling minimal human exposure to hazards under these conditions is through the use of gloveboxes which are sealed volumes with controlled access for perfor…
Preprint PublishedO.P. Bardsley T.C. Hender B.C. Lyons N.M. Ferraro S.N. Gerasimov JET contributors
Disruptions pose a serious challenge for future tokamak power plants; at the large stored thermal and magnetic energies of ITER and DEMO plasmas, the heat loads and electromagnetic forces during disruptions must be mitigated. With this objective, JET experiments employing impurity shattered pellet injection (SPI) have recently been undertaken. W…
PreprintF. Schoofs S. King A. Cackett M. Leyland C. Hardie
Small Angle Neutron Scattering (SANS) is performed to analyse the microstructural state of reference CuCrZr material with carefully controlled heat treatments, small-scale manufacturing mock-ups of assemblies and high-heat-flux exposed mock-ups. The information derived from the SANS data corresponds well to existing literature data based on microsc…
Preprint Published