J. Garcia J. F. Artaud V. Basiuk M. Brix J. Decker et al.
The impact of the Radio Frequency heating and current drive systems on the ITER advanced scenarios is analyzed by means of the CRONOS suite of codes for integrated tokamak modelling. As a first step, the code is applied to analyze a high power advanced scenario discharge of JET in order to validate both the heating and current drive modules and the…
PublishedVolker Naulin Jens Juul Rasmussen Clemente Angioni Carine Giroud Marco Valisa Maria Ester Puiatti L. Carraro
Impurity transport is an important topic for ITER as impurity density in tlie core has to stay below a relative concentration of 5 x 10~^ [1] to reach ignition conditions. The reasons for that is mainly impurity radiation leading to cooling. In the edge region on the other hand site, higher impurity densities, going along with radiation energy loss…
PublishedD. Iraji A. Diallo A. Fasoli I. Furno S. Shibaev
Fast framing cameras constitute an important recent diagnostic development aimed at monitoring light emission from magnetically confined plasmas, and are now commonly used to study turbulence in plasmas. In the TORPEX toroidal device [A. Fasoli et al. , Phys. Plasmas 13 , 055902 (2006)], low frequency electrostatic fluctuations associated with drif…
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…
PublishedC. Gormezano C. D. Challis E. Joffrin X. Litaudon A. C. C. Sips
A review of the development of advanced tokamak scenarios at the Joint European Torus (JET) is presented. It has been established that the current profile plays an important role in these regimes, and the presentation of the experimental achievement has been organized with this in mind. The main achievements are discussed: from high beta plasmas st…
PublishedV. Riccardo
Disruptions lead to the largest operational electromechanical loads on the vessel, its supports, and the in-vessel components. In addition, plasma-facing components can be exposed to very high thermal fluxes during the plasma thermal quench and to high-energy runaway electron beams. Therefore, disruptions represent one of the most demanding design …
PublishedAnatoly V. Krasilnikov Mamiko Sasao Yuri A. Kaschuck Vasily G.Kiptily Takeo Nishitani Sergey V.Popovichev Luciano Bertalot
Due to high neutron and gamma-ray yields and large size plasmas many future fusion reactor plasma parameters such as fusion power, fusion power density, ion temperature, fuel mixture, fast ion energy and spatial distributions can be well measured by various fusion product diagnostics. Neutron diagnostics provide information on fusion reaction rate,…
PublishedM.G. Von Hellermann E.Delabie R.J.E. Jaspers W.Biel O.Marchuk H.P.Summers A.Whlteford C.Giroud N.C.Hawkes K.D.Zastrow
Charge exchange Recombination Spectroscopy (CXRS) plays a pivotal role in the diagnostics of hot fusion plasmas and is implemented currently in most of the operating devices. In the present report the main features of CXRS are summarized and supporting software packages encompassing "Spectral Analysis Code CXSFIT", "Charge Exchange Analysis Package…
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…
PublishedM. Sasao T. Nishitani A. Krasilnilov S. Popovichev V. Kiptily J. Kallne
Fusion product diagnostics can be used to determine afusion reaction rate,whichindicateshowclose theplasma is to the ultimate goal of making a power plant based on nuclear fusion. However, these diagnostics can also provide large amounts of additional information, such as ion temperatures, the thermonuclear fraction in the fusion reaction rate, deg…
Published