Pui-Wai Ma C. H. Woo
We develop a dynamical simulation model for magnetic iron where atoms are treated as classical particles with intrinsic spins. The atoms interact via scalar many-body forces as well as via spin orientation dependent forces of the Heisenberg form. The coupling between the lattice and spin degrees of freedom is described by a coordinate-dependent exc…
PublishedColin Windsor Geoff Cottrell Richard Kemp
A prediction has been made of the Charpy ductile-brittle transition temperature at high irradiation levels from a dataset of 459 low-activation ferritic/martensitic steels. It follows a similar study of the yield stress of some 1811 similar alloys (Windsor et al , Modelling Simul. Mater. Sci. Eng. 16 (2008) 025005) Neural networks have previously b…
PublishedC. H. Skinner A. A. Haasz V. Kh. Alimov N. Bekris R. A. Causey R. E. H. Clark J. P. Coad J. W. Davis R. P. Doerner M. Mayer A. Pisarev J. Roth T. Tanabe
Management of tritium inventory remains one of the grand challenges in the development of fusion energy, and the choice of plasma-facing materials is a key factor for in-vessel tritium retention. The Atomic and Molecular Data Unit of the International Atomic Energy Agency organized a Coordinated Research Project (CRP) on the overall topic of tritiu…
PublishedPui-Wai Ma C. H. Woo S. L. Dudarev
We develop a Spin-Lattice Dynamics (SLD) simulation model for ferromagnetic iron where atoms are treated as classical particles with spins. The atoms interact via many-body forces as well as via spin-orientation-dependent forces of the Heisenberg form. The coupling between the lattice and the spin degrees of freedom is described by a coordinate-dep…
PublishedG Van Oos M Gryaznevich E Del Bosco A Malaguias G Mank M Berta J Brotankova R Dejarnac E Dufkova I Duran M Hron P Peleman J Sentkerestiova J Stocke B Taf V Weinzett J Zajac S Zoletnik V Budaev N Kirneva G Kirnev B Kuteev A Melnikov
Small tokamaks may significantly contribute to the better understanding of phenomena in a wide range of fields such as plasma confinement and energy transport; plasma stability in different magnetic configurations; plasma turbulence and its impact on local and global plasma parameters; processes at the plasma edge and plasma-wall interaction; scena…
PublishedR. Prokopowicz M. Scholz A. Szydlowski S. Popovichev
The paper reports on experiments carried out at JET to test the possibility of using some activating materials (e.g. 89Y, 167Er, 204Pb, 180Hf, 111Cd, etc.) to perform multi-foil neutron activation measurements. It is shown that apart from indium other materials can be successfully used in these measurements delivering more exact information about f…
PublishedRJ.E. Jaspers M.G. Von Hellermann E. Delabie J.E. Boom Aj.H. Donne W. Biel N.C. Hawkes O. Neubauer M. Di Maio S. Sadakov F. Klinkhamer B. Snijders A. Hogenbirk
Charge eXchange Recombination Spectroscopy (CXRS) will play a crucial role in the diagnosing of burning plasmas: items like helium ash, transport barriers, impurity content or fuel ratio can all be assessed with CXRS. In fact this is the only direct method to obtain information about the light impurity ions, such as temperature, concentrations and …
PublishedR.A. Forrest
Achieving the economically viable release of energy by the fusion process has proved a major scientific and technological challenge. The nuclear reactions involved in the fusion process are well understood, but the interaction of the neutrons with the materials surrounding the plasma is an area of current research. The neutrons have energies larger…
PublishedR.A. Forrest J. Kopecky
The European Activation System (EASY) has been developed for activation calculations. It comprises the EAF nuclear data libraries and the FISPACT inventory code. A new version (EASY-2007) has been released recently that represents a significant extension of previous versions. It contains neutron-induced, deuteron-induced and protoninduced data that…
PublishedU. Fischer P. Batistoni R. Forrest C. Konno R.L. Perel K. Seidel S.P. Simakov
An overview is presented of the nuclear data required for nuclear design analyses of fusion technology focusing on ITER, the International Thermonuclear Experimental Reactor, and IFMIF, the International Fusion Materials Irradiation Facility. The status of the available data evaluations and libraries is reviewed with regard to the required material…
Published