Results 81 to 90 of about 1,720 (162)

Deposition in the inner and outer corners of the JET divertor with carbon wall and metallic ITER-like wall [PDF]

, 2016
Rotating collectors and quartz microbalances (QMBs) are used in JET to provide time-dependent measurements of erosion and deposition. Rotation of collector discs behind apertures allows recording of the long term evolution of deposition.
Baron-Wiechec, A., Beal, J., García Muñoz, Manuel, Gibson, K.J., Heinola, K., Jet Contributors, Widdowson, A.   +6 more
core   +1 more source

Isotope and density profile effects on pedestal neoclassical transport

, 2017
Cross-field neoclassical transport of heat, particles and momentum is studied in sharp density pedestals, with a focus on isotope and profile effects, using a radially global approach.
Buller, Stefan, Pusztai, Istvan
core   +1 more source

Spectroscopic investigations of divertor detachment in TCV [PDF]

, 2017
The aim of this work is to provide an understanding of detachment at TCV with emphasis on analysis of the Balmer line emission. A new Divertor Spectroscopy System has been developed for this purpose. Further development of Balmer line analysis techniques
Duval, B. P., Harrison, J. R., Labit, B., Lipschultz, B., Marini, C., Maurizio, R., Nespoli, F., Reimerdes, H., Sheikh, U., team, MST1, team, TCV, Theiler, C., Tsui, C. K., Verhaegh, K., Vianello, N., Vijvers, W. A. J.   +15 more
core   +4 more sources

Main chamber wall plasma loads in JET-ITER-like wall at high radiated fraction

Nuclear Materials and Energy, 2017
Future tokamak reactors of conventional design will require high levels of exhaust power dissipation (more than 90% of the input power) if power densities at the divertor targets are to remain compatible with active cooling.
C. Guillemaut, P. Drewelow, G.F. Matthews, A.S. Kukushkin, R.A. Pitts, P. Abreu, S. Brezinsek, M. Brix, P. Carman, R. Coelho, S. Devaux, J. Flanagan, C. Giroud, D. Harting, C.G. Lowry, C.F. Maggi, F. Militello, C. Perez Von Thun, E.R. Solano, A. Widdowson, S. Wiesen, M. Wischmeier, D. Wood   +22 more
doaj   +1 more source

Comparison of DIVIMP and EDGE2D-EIRENE tungsten transport predictions in JET edge plasmas

Nuclear Materials and Energy, 2020
The average tungsten concentrations in the pedestal region (cW) predicted by the Monte Carlo code DIVIMP and the coupled multi-fluid plasma/kinetic neutral code EDGE2D-EIRENE are found to agree within a factor of 2 for a range of JET-ILW L-mode and H ...
H.A. Kumpulainen, M. Groth, M. Fontell, A.E. Jaervinen, G. Corrigan, D. Harting   +5 more
doaj   +1 more source

Multiscale Modelling for Tokamak Pedestals

, 2018
Pedestal modelling is crucial to predict the performance of future fusion devices. Current modelling efforts suffer either from a lack of kinetic physics, or an excess of computational complexity.
Abel, Ian, Hallenbert, Axel
core   +1 more source

Efficient generation of energetic ions in multi-ion plasmas by radio-frequency heating [PDF]

, 2017
We describe a new technique for the efficient generation of high-energy ions with electromagnetic ion cyclotron waves in multi-ion plasmas. The discussed ‘three-ion’ scenarios are especially suited for strong wave absorption by a very low number of ...
Alcator C-Mod Team, Baranov, Y., Bielecki, J., Bilato, R., Bobkov, V., Craciunescu, T., Crombé, K., Czarnecka, A., Faustin, J., Felton, R., Fitzgerald, M., Gallart, Daniel, Giacomelli, L., Golfinopoulos, T., Hubbard, A., Jacquet, Ph., JET Contributors, Johnson, T., Kazakov, Ye.O., Kiptily, V.G., Lennholm, M., Lerche, E., Lin, Y., Loarer, T., Mantisen, Mervi, Nabais, F., Nave, M.F.F., Nocente, M., Ongena, J., Porkolab, M., Sharapov, S., Valcarcel, D., van Eester, D., van Schoor, M., Weisen, H., Wright, S.J., Wukith, S.J.   +36 more
core   +1 more source

Operational challenges for long pulses on JET-ILW

Plasma Physics and Controlled Fusion
Abstract The typical pulse on the JET tokamak is ∼10 s during the main phase of the discharge, however long discharge operation (>30 s) is possible with sufficient preparation and care. During the last period of JET operation in 2023 long pulses in deuterium plasmas were developed to assess the sustainment of the plasma performance ...
D B King, E Lerche, X Litaudon, S Brezinsek, E Joffrin, F Auriemma, M Beldishevski, N Balshaw, M Baruzzo, A Boboc, P Card, I S Carvalho, P J Carvalho, I Coffey, P McCullen, S Dalley, E Delabie, P Dumortier, R Felton, S Gerasimov, Z Ghani, A Goodyear, N Hawkes, R B Henriques, S Hotchin, P Jacquet, I Jepu, D Keeling, D Kinna, D Kos, E Litherland-Smith, R Lobel, P J Lomas, C Lowry, J Mailloux, M Maslov, D Matveev, A Meigs, S Menmuir, J Mitchell, I Monakhov, C Noble, M Poradzinski, F Rimini, S Silburn, E R Solano, H Sun, C Srinivasan, B Thomas, D Valcarcel, R Villari, J Waterhouse, A West, I Young   +53 more
openaire   +1 more source

Density pedestal prediction model for tokamak plasmas

Nuclear Fusion
A model for the pedestal density prediction based on neutral penetration combined with pedestal transport is presented. The model is tested against a pedestal database of JET-ILW Type I ELMy H-modes showing good agreement over a wide range of parameters ...
S. Saarelma, J.W. Connor, P. Bílková, P. Bohm, C. Bowman, A.R. Field, L. Frassinetti, R. Friedström, S. Henderson, K. Imada, A. Kirk, O.J. Kwon, T. Luda, R. Sarwar, R. Scannell, S.F. Smith, the ASDEX Upgrade Team, MAST-U team, STEP team, JET Contributors, the Eurofusion Tokamak Exploitation Team   +20 more
doaj   +1 more source

40 years of ICRF operation on JET: Challenges and achievements [PDF]

EPJ Web of Conferences
After 40 years of successful operation and multiple Deuterium-Tritium (D-T) campaigns, the Joint European Torus (JET) concluded its operations in December 2023.
Dumortier Pierre, Monakhov Igor, Jacquet Philippe, Durodié Frédéric, Lerche Ernesto, Lobel Robert, Mayoral Marie-Line, Noble Craig, Roberts Jason, Sheikh Haroon   +9 more
doaj   +1 more source