M. Goniche J. Mailloux Y. Baranov T. M. Biewer I. Coffey et al.
During high power commissioning of the JET LH launcher, the radiation and impurity release has been analyzed from various diagnostics: VUV and visible spectroscopy, bolometry. These two last diagnostics have lines-of-sight viewing the launcher and can provide information about the electron and/or impurity source localisation. Using a database of 80…
PublishedR.O. Dendy
Information theory, applied directly to measured signals, yields new perspectives on, and quantitative knowledge of, the physics of strongly nonlinear and turbulent phenomena in plasmas. It represents a new and productive element of the topical research programmes that use modem techniques to characterise strongly nonlinear signals from plasmas, an…
PublishedR. J. La Haye R. J. Buttery
It is found that flow shear has a stabilizing effect on m / n =3/2 neoclassical tearing mode islands through a more negative classical tearing stability index in the DIII-D J. L. Luxon, Nucl. Fusion 42 , 614 2002 tokamak. The heating neutral beams are mixed between co- and counter-directions to vary the torque on the plasma and thus the plasma flow…
PublishedC. Sozzi G. Grossetti Y. Baranov E. De La Luna D. Farina et al.
The new Oblique ECE diagnostics of JET allows simultaneous measurement along three lines of sight at different toroidal angles. JET pulses, in which modulated LHCD power was applied, were analyzed by means of the SPECE emission code, which takes into account the fast electron tail generated by LH. The code results were compared to the ECE spectra f…
PublishedD.J. Ward
Conceptions of the aims and characteristics of DEMOs are evolving in response to world issues. Many areas are important in these considerations: two particularly important, and technically related, ones are examined here. Firstly, in the recent Strategic Energy Technology plan (SET plan) in the EU, approaches to technological development that could…
PublishedW. Zwingmann M. Airaj L. Appel V. Drozdov L.-G. Eriksson B. Guillerminef G.T.A. Huysmans F. Imbeaux P. Mccarthy Ph. Moreau M. Romanelli P. Strand The Imp-1/Isip Team
The Integrated tokamak modelling taskforce was set up to provide the European scientific community with simulation tools for preparing and analysing discharges of fusion experiments. We will report on recent progress made on the taskforce project on equilibrium and linear stability. A generic data structure has been devised to describe the geometry…
PublishedR. Lässer A. Antipenkov N. Bekris L.V. Boccaccini C.J. Caldwell-Nichols I. Cristescu Ch. Day M. Gasparotto M. Glugla G. Dell’Orco F. Gabriel O. Gastaldi Ch. Grisolia S. Knipe A. J. Magielsen A. Möslang D. Murdoch R. Pearce A. Perevezents
Tritium as one of the two fuel components for fusion power plays a special role in any fusion device. Due to its volatile character, radioactivity and easy incorporation as HTO it needs to be controlled with special care and due to its scarcity on earth it has to be produced in-situ in future fusion power plants. The paper discusses the present tri…
PublishedPui-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…
Published