Results 51 to 60 of about 451,392 (162)

Fuel inventory and deposition in castellated structures in JET-ILW [PDF]

Nuclear Fusion, 2017
Swedish Research Council (VR) 2015 ...
Rubel, M., Petersson, P., Zhou, Y., Coad, J.P., Lungu, C., Jepu, I., Porosnicu, C., Matveev, D., Kirschner, A., Brezinsek, S., Widdowson, A., Alves, E.   +11 more
openaire   +4 more sources

Characterising W radiation in JET-ILW plasmas [PDF]

, 2016
A fundamental change of plasma behaviour since the ILW is that edge pedestals in ELMy H-modes are considerably colder than they were in Carbon, even for comparable fuelling levels [1,2]. This is interesting in itse lf, and also has implications for scenario development, since reduced core confinement is corr elated with the lower pedestal.
Solano E R, Coffey I, Huber A, Henderson SS, O'Mullane M, Casson F, Summers H, Pütterich T, Puiatti ME, Carraro L, Valisa M, Menmuir S, Lawson K, Sertoli M, Lomanowski B, Reinke M, Bernert M, Drewelow P, Maslov M, Flanagan J, Sergienko G, Stamp M, Brezinsek S, Meneses L, Schmuck S, Boom J, Giroud C, Guillemaut C, de la Luna E, Baciero A, JET Contributors   +30 more
  +9 more sources

Deuterium retention in the divertor tiles of JET ITER-Like wall

Nuclear Materials and Energy, 2017
Divertor tiles removed after the second JET ITER-Like Wall campaign 2013–2014 (ILW-2) were studied using Secondary Ion Mass Spectrometry (SIMS). Measurements show that the thickest beryllium (Be) dominated deposition layers are located at the upper part ...
A. Lahtinen, J. Likonen, S. Koivuranta, A. Hakola, K. Heinola, C.F. Ayres, A. Baron-Wiechec, J.P. Coad, A. Widdowson, J. Räisänen   +9 more
doaj   +1 more source

Impact of W events and dust on JET-ILW operation [PDF]

Journal of Nuclear Materials, 2015
The occurrence of transient impurity events (TIE) leading to intense radiation spikes in JET plasma discharges has been studied since the installation of the ITER-like wall (ILW). To generate the observed average increase in radiated power of 1.5 MW, a spherical particle of solid W of radius >90 μm would be required. The drop in plasma energy caused
Sertoli, M., Flanagan, J. C., Bacharis, M., Kardaun, O., Jarvinen, A., Matthews, G. F., Brezinsek, S., Harting, D., Cackett, A., Hodille, E., Coffey, I. H., Lazzaro, E., Pütterich, T.   +13 more
openaire   +5 more sources

Validation of SOLPS-ITER simulations with kinetic, fluid, and hybrid neutral models for JET-ILW low-confinement mode plasmas

Nuclear Materials and Energy, 2022
For JET L-mode plasmas in low-recycling conditions (electron temperature at the outer strike point, 𝑇 e , ot ≳ 30 eV ), SOLPS-ITER simulations agree within the error bars for the experimental profiles at the low-field side (LFS) divertor target. The peak
N. Horsten, M. Groth, W. Dekeyser, W. Van Uytven, S. Aleiferis, S. Carli, J. Karhunen, K. Lawson, B. Lomanowski, A. Meigs, S. Menmuir, A. Shaw, V. Solokha, B. Thomas   +13 more
semanticscholar   +1 more source

Recent H majority inverted radio frequency heating scheme experiments in JET-ILW

EPJ Web of Conferences, 2017
Inverted 3He and D ion cyclotron minority heating scenarios were recently tested in JET-ILW. They confirm the good heating efficiency at low concentrations of ∼3%. The 3He minority heating scheme is only modestly affected by the change from a carbon (JET-
Van Eester Dirk, Lerche Ernesto, Kazakov Yevgen, Jacquet Philippe, Baranov Yuri, Bobkov Volodymyr, Crombé Kristel, Czarnecka Agata, Dumont Remi, Dumortier Pierre, Eriksson Jacob, Giacomelli Luca, Giroud Carine, Goniche Marc, Hellesen Carl, Kiptily Vasily, Krawczyk Natalia, Koskela Tuomas, Nave Filomena, Nocente Massimo, Ongena Jef, Santala Marko, Salewski Mirko, Schneider Mireille, Weisen Henri   +24 more
doaj   +1 more source

Parameter dependencies of the separatrix density in low triangularity L-mode and H-mode JET-ILW plasmas

Nuclear Fusion, 2022
The midplane electron separatrix density, n e,sep, in JET-ILW L-mode and H-mode low triangularity deuterium fuelled plasmas exhibits a strong explicit dependence on the averaged outer divertor target electron temperature, n e,sep ∼ T e,ot −1/2.
B. Lomanowski, G. Rubino, A. Uccello, M. Dunne, N. Vianello, S. Aleiferis, J. Canik, I. Carvalho, G. Corrigan, L. Frassinetti, D. Frigione, L. Garzotti, M. Groth, A. Meigs, M. Maslov, C. V. von Thun, F. Rimini, P. Schneider, G. Sergienko, J. Simpson, D. van Eester   +20 more
semanticscholar   +1 more source

EDGE2D-EIRENE simulations of the impact of poloidal flux expansion on the radiative divertor performance in JET

Nuclear Materials and Energy, 2017
In the past at JET, with the MkI divertor, a systematic study of the influence of X-point height and poloidal flux expansion has been conducted [1,2] showing minor differences in the radiation distribution, whereas in [3] experiment and simulations have ...
B. Viola, G. Calabró, A.E. Jaervinen, I. Lupelli, F. Maviglia, S. Wiesen, M. Wischmeier, JET Contributors   +7 more
doaj   +1 more source

The impact of fuelling and W radiation on the performance of high-power, ITER-baseline scenario plasmas in JET-ILW

Plasma Physics and Controlled Fusion, 2021
Sustained operation of high-performance, ITER-baseline scenario plasmas at the high levels of input power ( ≲40MW ) required to achieve ∼15 MW of D-T fusion power in JET-ILW requires careful optimisation of the fuelling to avoid an unacceptable ...
A. Field, S. Aleiferis, E. Belonohy, P. Carvalho, I. Coffey, D. Frigione, L. Garzotti, L. Horvath, Hyun-Tae Kim, M. Lennholm, E. Lerche, P. Lomas, C. Lowry, J. Mailloux, F. Rimini, C. Roach, M. Sertoli, Ž. Štancar, G. Szepesi, D. van Eester   +19 more
semanticscholar   +1 more source

Impact of ICRF on the scrape-off layer and on plasma wall interactions: From present experiments to fusion reactor

Nuclear Materials and Energy, 2019
Recent achievements in studies of the effects of ICRF (Ion Cyclotron Range of Frequencies) power on the SOL (Scrape-Off Layer) and PWI (Plasma Wall Interactions) in ASDEX Upgrade (AUG), Alcator C-Mod, and JET-ILW are reviewed.
V. Bobkov, D. Aguiam, R. Bilato, S. Brezinsek, L. Colas, A. Czarnecka, P. Dumortier, R. Dux, H. Faugel, H. Fünfgelder, Ph. Jacquet, A. Kallenbach, A. Krivska, C.C. Klepper, E. Lerche, Y. Lin, D. Milanesio, R. Maggiora, I. Monakhov, R. Neu, J.-M. Noterdaeme, R. Ochoukov, Th. Pütterich, M. Reinke, W. Tierens, A. Tuccilo, O. Tudisco, D. Van Eester, J. Wright, S. Wukitch, W. Zhang   +30 more
doaj   +1 more source