A.E. Havlicková W. Fundamenski F. Subba D. Coster M. Wischmeier G. Fishpool
A 1D code modelling SOL transport parallel to the magnetic field (SOLF1D) is benchmarked with 2D simulations of MAST-U SOL performed via the SOLPS code for two different collisionalities. Based on this comparison, SOLF1D is then used to model the effects of divertor leg stretching in 1D, in support of the planned Super-X divertor on MAST. The aim i…
PublishedV. G. Kiptily P. Beaumont F. Belli F. E. Cecil S. Conroy T. Craciunescu M. Garcia-Munoz M. Curuia D. Darrow Et. Al.
JET equipped with ITER-like wall (a beryllium wall and a tungsten divertor) can provide auxiliary heating with power up to 35MW, producing a significant population of alpha-particles in DT operation. The direct measurements of alphas are very difficult and alpha-particle studies require a significant development of dedicated diagnostics. JET now ha…
PublishedH. Weisen A. C. C. Sips C. D. Challis L.-G. Eriksson S. E. Sharapov P. Batistoni L. D. Horton K.-D. Zastrow EFDA-JET Contributors
After the first high power D-T experiment in JET in 1997 (DTE1), when JET was equipped with Carbon PFC’s, a proposed second high power (up to ~40MW) D-T campaign (DTE2) in the current Be/W vessel will address essential operational, technical, diagnostics and scientific issues in support of ITER. These experiments are proposed to minimize the risk…
PublishedR. Felton
DEMO aims to (i) integrate, demonstrate and validate all relevant technology necessary to convert fusion energy to electrical energy and (ii) that the machine and its operations are economically and environmentally acceptable. To maintain the efficiency and availability of the machine, there are several physics and combined physics/technology issue…
PublishedP. Jacquet V. Bobkov S. Brezinsek M. Brix A-L. Campergue L. Colas A. Czarnecka P. Drewelow M. Graham C. C. Klepper E. Lerche M.-L. Mayoral A. Meigs D. Milanesio I. Monakhov J. Mlynar T. Pütterich A. Sirinelli D. Van-Eester JET-EFDA
In 2011/12, JET started operation with its new ITER-Like Wall (ILW) made of a tungsten (W) divertor and a beryllium (Be) main chamber wall. The impact of the new wall material on the JET Ion Cyclotron Resonance Frequency (ICRF) operation was assessed and also the properties of JET plasmas heated with ICRF were studied. No substantial change of the …
PublishedK. K. Kirov Yu. Baranov E. Barbato M. Brix G. Corrigan A. Ekedahl M. Goniche J. Mailloux V. Petrzilka F. Rimini M. Stamp JET EFDA Contributors
An overview of the recent results of Lower Hybrid (LH) experiments at JET with the ITER-like wall (ILW) is presented. Topics relevant to LH wave coupling are addressed as well as issues related to ILW and LH system protections. LH wave coupling was studied in conditions determined by ILW recycling and operational constraints. It was concluded that …
PublishedM. Nightingale E. Wooldridge I. Monakhov
The technology implications of potential FWCD systems have been assessed at two frequencies of relevance to DEMO as part of a wider study of heating and current drive systems for the EFDA Power Plant Physics and Technology (PPP&T), based upon two reference DEMO designs. Using the results of Van Eester et al [1], systems studies carried out for a 62…
PublishedA. Argouarch R. Bamber B. Beaumont J.-M. Bernard J. M. Delaplanche F. Durodié J. C. Hatchressian P. Lamalle G. Lombard K. Nicholls J. C. Patterlini M. Shannon D. Thouvenin P. Tigwell R. Volpe K. Vulliez
In the framework of the Ion Cyclotron (IC) antenna design, ITER Organization requested qualification tests on sliding Radio-Frequency (RF) contacts, to verify that these contacts (quality class 1) are designed appropriately to guarantee a sufficient operational life time. These RF contacts will be integrated into the antenna structure at different …
PublishedF. Durodié M. Vrancken R. Bamber L. Colas P. Dumortier D. Hancock S. Huygen D. Lockley F. Louche R. Maggiora D. Milanesio A. Messiaen M. P. S. Nightingale M. Shannon P. Tigwell M. Van Schoor D. Wilson K. Winkler Cycle Team
ITER’s Ion Cyclotron Range of Frequencies (ICRF) system [1] comprises two antenna launchers designed by CYCLE (a consortium of European associations listed in the author affiliations above) on behalf F4E for the ITER Organisation (IO), each inserted as a Port Plug (PP) into one of ITER’s Vacuum Vessel (VV) ports. Each launcher is an array of 4 …
PublishedA.-L. Campergue P. Jacquet V. Bobkov D. Milanesio I. Monakhov L. Colas G. Arnoux M. Brix A. Sirinelli JET-EFDA Contributors
When using Ion Cyclotron Range of Frequency (ICRF) heating, enhanced power deposition on Plasma-Facing Components (PFCs) close to the antennas can occur. Experiments have recently been carried out on JET with the new ITER-Like-Wall (ILW) to characterize the heat fluxes on the protection of the JET ICRF antennas, using Infra-Red (IR) thermography me…
Published