C. Sozzi E. De La Luna D. Farina J. Fessey L. Figini et al.
Deviations of the electron function velocity distribution from Maxwellian behavior in the high energy range have been extensively studied during the past two decades. A brief review of the experimental techniques and findings on the subject is given in this paper. There are indications that the electron distribution function in thermonuclear plasma…
PublishedS. E. Sharapov L.-G. Eriksson A. Fasoli G. Gorini J. Källne V. G. Kiptily A. A. Korotkov A. Murari S. D. Pinches D. S. Testa P. R. Thomas
Studies establishing key phenomena and developing diagnostics for energetic particle physics, which are essential for the next step burning plasma experiments such as the International Thermonuclear Experimental Reactor (ITER), have been performed at the Joint European Torus (JET). Experiments have demonstrated clear selfheating of deuterium-tritiu…
PublishedN. Ben Ayed K. G. McClements A. Thyagaraja
A perturbative three-dimensional analysis is presented of Alfvén waves in a magnetic X-point configuration with a strong longitudinal guide field. The waves are assumed to propagate in the direction of the X-line, and both the plasma beta and equilibrium plasma current are taken to be zero. This provides a simple model of Alfvén wave propagation …
PublishedD. Stork
This summary paper reviews those contributions to the 22 nd IAEA Fusion Energy Conference (FEC) selected under the categories of Fusion Technology (FT), ITER Activities (IT) and Safety and Economic Studies (SE). The IT category was limited to those papers put forward officially by the ITER Organisation (IO). In addition, several papers in the FT ca…
PublishedM. F. M. De Bock N. J. Conway M. J. Walsh P. G. Carolan N. C. Hawkes
A multichord motional Stark effect MSE system has recently been built on the MAST tokamak. In MAST the π and σ lines of the MSE spectrum overlap due to the low magnetic field typical for present day spherical tokamaks. Also, the field curvature results in a large change in the pitch angle over the observation volume. The measured polarization ang…
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…
PublishedM. Krychowiak Ph. Mertens B. Schweer S. Brezinsek R. Konig O. Schmitz M. Brix T. Klinger U. Samm
Local values of the electron density and temperature in the edge of a fusion plasma can be derived with high space and time resolution by the use of line radiation of atomic helium beams. The accuracy of this method is mainly limited by the uncertainties in the coUisional-radiative model which is needed in order to obtain both plasma parameters fro…
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…
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