Results 1 to 10 of about 166 (115)

The radiated power limit in impurity seeded JET-ILW plasmas

Nuclear Materials and Energy, 2022
The total radiated fraction is examined in high density H-mode plasmas (Greenwald fraction of about 85 %) in JET by the variation of the auxiliary heating power of Pheat = 14 MW-29 MW.
A. Huber, M. Wischmeier, S. Wiesen, M. Bernert, A.V. Chankin, S. Aleiferis, S. Brezinsek, V. Huber, G. Sergienko, C. Giroud, M. Groth, S. Jachmich, Ch. Linsmeier, B. Lomanowski, C. Lowry, G.F. Matthews, A.G. Meigs, Ph. Mertens, S. Silburn, G. Telesca   +19 more
doaj   +9 more sources

Comparison of JET inner wall erosion in the first three ITER-like wall campaigns

Nuclear Materials and Energy, 2021
The net erosion of material from recessed areas of the JET main chamber inner wall during the first three ITER-like wall (JET-ILW) campaigns was studied using long-term samples with Be and W marker layers.
S. Krat, M. Mayer, J.P. Coad, C.P. Lungu, K. Heinola, A. Baron-Wiechec, I. Jepu, A. Widdowson   +7 more
doaj   +1 more source

Overview of tritium retention in divertor tiles and dust particles from the JET tokamak with the ITER-like wall

Nuclear Fusion, 2023
Divertor tiles after Joint European Torus-ITER like wall (JET-ILW) campaigns and dust collected after JET-C and JET-ILW operation were examined by a set of complementary techniques (full combustion and radiography) to determine the total, specific and ...
Y. Torikai, G. Kikuchi, A. Owada, S. Masuzaki, T. Otsuka, N. Ashikawa, M. Yajima, M. Tokitani, Y. Oya, S.E. Lee, Y. Hatano, N. Asakura, T. Hayashi, M. Oyaidzu, J. Likonen, A. Widdowson, M. Rubel, JET Contributors   +17 more
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L-H transition studies in tritium and deuterium–tritium campaigns at JET with Be wall and W divertor

Nuclear Fusion, 2023
The recent deuterium–tritium campaign in JET-ILW (DTE2) has provided a unique opportunity to study the isotope dependence of the L-H power threshold in an ITER-like wall environment (Be wall and W divertor).
E.R. Solano, G. Birkenmeier, C. Silva, E. Delabie, J.C. Hillesheim, A. Baciero, I. Balboa, M. Baruzzo, A. Boboc, M. Brix, J. Bernardo, C. Bourdelle, I.S. Carvalho, P. Carvalho, C.D. Challis, M. Chernyshova, A. Chomiczewska, R. Coelho, I. Coffey, T. Craciunescu, E. de la Cal, E. de la Luna, R. Dumont, P. Dumortier, M. Fontana, J.M. Fontdecaba, L. Frassinetti, D. Gallart, J. Garcia, C. Giroud, W. Gromelski, R.B. Henriques, J. Hall, A. Ho, L.D. Horton, L. Horvath, P. Jacquet, I. Jepu, E. Joffrin, A. Kappatou, D.L. Keeling, D.B. King, V.G. Kiptily, K.K. Kirov, D. Kos, E. Kowalska-Strzęciwilk, M. Lennholm, E. Lerche, E. Litherland-Smith, A. Loarte, B. Lomanowski, P.J. Lomas, C.F. Maggi, J. Mailloux, M.J. Mantsinen, M. Maslov, A.G. Meigs, I. Monakhov, R.B. Morales, A.H. Nielsen, D. Nina, C. Noble, E. Pawelec, M. Poradzinski, G. Pucella, P. Puglia, D. Réfy, J. Juul Rasmussen, E. Righi, F.G. Rimini, T. Robinson, M. Sertoli, S.A. Silburn, G. Sips, P. Sirén, Ž. Štancar, H.J. Sun, G. Szepesi, D. Taylor, E. Tholerus, B. Thomas, G. Verdoolaege, P. Vincenzi, B. Viola, N. Vianello, T. Wilson, JET Contributors   +86 more
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Erosion at the inner wall of JET during the discharge campaign 2013–2014

Nuclear Materials and Energy, 2017
The erosion of Be and W marker layers was investigated using long-term samples containing marker layers during the second ITER-like wall discharge campaign 2013–2014 (ILW-2).
S. Krat, M. Mayer, I. Bykov, C.P. Lungu, G. de Saint Aubin, A. Widdowson, I.S. Carvalho   +6 more
doaj   +1 more source

Tritium retention characteristics in dust particles in JET with ITER-like wall

Nuclear Materials and Energy, 2018
A tritium imaging plate technique (TIPT) in combination with an electron-probe microscopic analysis (EPMA) were applied to examine tritium (T) retention characteristics in individual dust particles collected in the Joint European Torus with the ITER-like
T. Otsuka, S. Masuzaki, N. Ashikawa, Y. Hatano, Y. Asakura, Tatsuya Suzuki, Takumi Suzuki, K. Isobe, T. Hayashi, M. Tokitani, Y. Oya, D. Hamaguchi, H. Kurotaki, R. Sakamoto, Hiroyasu Tanigawa, M. Nakamichi, A. Widdowson, M. Rubel   +17 more
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Investigation of deuterium trapping and release in the JET divertor during the third ILW campaign using TDS

Nuclear Materials and Energy, 2019
Selected set of samples from JET ITER-Like Wall (JET-ILW) divertor tiles exposed in 2015–2016 has been analysed using Thermal Desorption Spectrometry (TDS).
J. Likonen, K. Heinola, A. De Backer, A. Baron-Wiechec, N. Catarino, I. Jepu, C.F. Ayres, P. Coad, G.F. Matthews, A. Widdowson   +9 more
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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

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
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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
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