Results 61 to 70 of about 1,720 (162)

Comparison of the scrape‐off layer two‐point model for deuterium and helium plasmas in JET ITER‐like wall low‐confinement plasma conditions

Contributions to Plasma Physics, Volume 64, Issue 7-8, August-September 2024.
Abstract The hydrogenic two‐point model (H‐2PM), an analytical model for the scrape‐off layer that predicts a common electron and ion temperature and density along a flux tube from a target temperature and density, is adapted to a single‐species helium (He) model, preserving the 2PM assumptions and analytical nature.
David Rees, Joona Sissonen, Mathias Groth, Vesa‐Pekka Rikala, Henri Kumpulainen, Beth Thomas, Mathias Brix, JET Contributors   +7 more
wiley   +1 more source

The effect of gyration on the deposition of beryllium and deuterium at rough surface on the divertor tiles with ITER-like-wall in JET

Nuclear Materials and Energy, 2019
Experimental results from microbeam analyses on divertor tiles, through 2011-2012 and 2013-2014 operations in JET-ILW, showed that the deuterium retention and beryllium impurity deposition were non-uniform on the rough surface in micro meter scale ...
Y. Zhou, H. Bergsåker, P. Petersson, G. Possnert, J. Likonen   +4 more
doaj   +1 more source

Lyman line opacities in tokamak divertor plasmas under high-recycling and detached conditions

Nuclear Materials and Energy
Radiation transport simulations of the deuterium Lyman line series using EIRENE predict a factor of 2 increase of Balmer-α emission in the JET-ILW low confinement divertor plasmas in high-recycling and detached conditions caused by the re-absorption of ...
Ray Chandra, Detlev Reiter, Niels Horsten, Mathias Groth   +3 more
doaj   +1 more source

Overview of the JET ITER-like wall divertor

Nuclear Materials and Energy, 2017
The work presented draws on new analysis of components removed following the second JET ITER-like wall campaign 2013–14 concentrating on the upper inner divertor, inner and outer divertor corners, lifetime issues relating to tungsten coatings on JET ...
A. Widdowson, E. Alves, A. Baron-Wiechec, N.P. Barradas, N. Catarino, J.P. Coad, V. Corregidor, A. Garcia-Carrasco, K. Heinola, S. Koivuranta, S. Krat, A. Lahtinen, J. Likonen, M. Mayer, P. Petersson, M. Rubel, S. Van Boxel   +16 more
doaj   +1 more source

A numerical study on the effect of dust particles on tritium deposition on plasma-facing materials

Nuclear Materials and Energy, 2022
Tritium deposition is a key issue for fusion devices. The existence of dust leads to increase of tritium deposition rates due to the large specific surface area (SSA) of dust grains. Experiments in JET-ILW have indicated that the deposition and retention
Guo-Jian Niu, Gakushi Kawamura, Qian Xu, Tao He, Fei-Fei Nian, Rong Wang, Zhong-Shi Yang, Guang-Nan Luo   +7 more
doaj   +1 more source

Optimization of ICRH for core impurity control in JET-ILW [PDF]

Nuclear Fusion, 2016
Abstract Ion cyclotron resonance frequency (ICRF) heating has been an essential component in the development of high power H-mode scenarios in the Jet European Torus ITER-like wall (JET-ILW). The ICRF performance was improved by enhancing the antenna-plasma coupling with dedicated main chamber gas injection, including the preliminary ...
Lerche, E., Goniche, M., Jacquet, P., Van Eester, D., Bobkov, V., Colas, L., Giroud, C., Monakhov, I., Casson, F. J., Rimini, F., Angioni, C., Baruzzo, M., Blackman, T., Brezinsek, S., Brix, M., Czarnecka, A., Crombé, K., Challis, C., Dumont, R., Eriksson, J., Fedorczak, N., Graham, M., Graves, J. P., Gorini, G., Hobirk, J., Joffrin, E., Johnson, T., Kazakov, Y., Kiptily, V., Krivska, A., Lennholm, M., Lomas, P., Maggi, C., Mantica, P., Mathews, G., Mayoral, M. L., Meneses, L., Mlynar, J., Monier Garbet, P., Nave, M. F., Noble, C., Nocente, M., Nunes, I., Ongena, J., Petravich, G., Petrzilka, V., Pütterich, T., Reich, M., Santala, M., Solano, E. R., Shaw, A., Sips, G., Stamp, M., Tardocchi, M., Tsalas, M., Valisa, M., Abhangi, M., Abreu, P., Aftanas, M., Afzal, M., Aggarwal, K. M., Aho Mantila, L., Ahonen, E., Aints, M., Airila, M., Albanese, R., Alegre, D., Alessi, E., Aleynikov, P., Alfier, A., Alkseev, A., Allan, P., Almaviva, S., Alonso, A., Alper, B., Alsworth, I., Alves, D., Ambrosino, G., Ambrosino, R., Amosov, V., Andersson, F., Andersson Sunde ́n, E., Angelone, M., Anghel, A., Anghel, M., Appel, L., Apruzzese, G., Arena, P., Ariola, M., Arnichand, H., Arnoux, G., Arshad, S., Ash, A., Asp, E., Asunta, O., Cooper, D., Cooper, S. R., Corre, Y., Corrigan, G., Cortes, S., Coster, D., Couchman, A. S., Cox, M., Cox, M. P., Cox, P., Craciunescu, T., Cramp, S., Crisanti, F., Cristescu, I., Croci, G., Croft, O., Crombe, K., Crowe, R., Cruz, N., Cseh, G., Cull, K., Cupido, L., Curran, D., Curuia, M., Czarski, T., Dalley, S., Dalziel, A., Darrow, D., Davies, R., Davis, W., Day, C., Day, I. E., de la Cal, E., de la Luna, E., De Magistris, M., de Pablos, J. L., De Tommasi, G., de Vries, P. C., Deakin, K., Deane, J., Decker, J., Degli Agostini, F., Dejarnac, R., Delabie, E., den Harder, N., Dendy, R. O., Denner, P., Devaux, S., Devynck, P., Di Maio, F., Di Pace, L., Dittmar, T., Dodt, D., Donne, T., Dooley, P., Dorling, S. E., Dormido Canto, S., Doswon, S., Douai, D., Doyle, P. T., Dreischuh, T., Drewelow, P., Drozdov, V., Drozdowicz, K., Dumortier, P., Atanasiu, C. V., Austin, Y., Avotina, L., Axton, M. D., Dunai, D., Dunne, M., Dˇuran, I., Durodie, F., Ayres, C., Bachmann, C., Baciero, A., Baia ̃o, D., Bailescu, V., Baiocchi, B., Baker, A., Baker, R. A., Balboa, I., Balden, M., Balshaw, N., Bament, R., Banks, J. W., Baranov, Y. F., Barlow, I. L., Barnard, M. A., Barnes, D., Barnsley, R., Baron Wiechec, A., Basiuk, V., Bassan, M., Bastow, R., Batista, A., Batistoni, P., Bauer, R., Bauvir, B., Bazylev, B., Beal, J., Beaumont, P. S., Becoulet, A., Bednarczyk, P., Bekris, N., Nave, M. F. F., Romanelli, F.   +201 more
openaire   +7 more sources

Energy balance in JET

Nuclear Materials and Energy, 2017
In this paper we discuss results from the study of the energy balance in JET based on calculated heating energies, radiated energy from bolometry and tile calorimetry. Recent data enables us to be more confident in the numbers used and to exclude certain
G.F. Matthews, P. Bunting, S. Devaux, P. Drewelow, C. Guillemaut, D.B. King, E. Lerche, S. Silburn, G. Szepesi, V. Riccardo, V. Thompson   +10 more
doaj   +1 more source

Overview of interpretive modelling of fusion performance in JET DTE2 discharges with TRANSP

Nuclear Fusion, 2023
In the paper we present an overview of interpretive modelling of a database of JET-ILW 2021 D-T discharges using the TRANSP code. The main aim is to assess our capability of computationally reproducing the fusion performance of various D-T plasma ...
Ž. Štancar, K.K. Kirov, F. Auriemma, H.-T. Kim, M. Poradziński, R. Sharma, R. Lorenzini, Z. Ghani, M. Gorelenkova, F. Poli, A. Boboc, S. Brezinsek, P. Carvalho, F.J. Casson, C.D. Challis, E. Delabie, D. Van Eester, M. Fitzgerald, J.M. Fontdecaba, D. Gallart, J. Garcia, L. Garzotti, C. Giroud, A. Kappatou, Ye.O. Kazakov, D.B. King, V.G. Kiptily, D. Kos, E. Lerche, E. Litherland-Smith, C.F. Maggi, P. Mantica, M.J. Mantsinen, M. Maslov, S. Menmuir, M. Nocente, H.J.C. Oliver, S.E. Sharapov, P. Sirén, E.R. Solano, H.J. Sun, G. Szepesi, JET Contributors   +42 more
doaj   +1 more source

ICRH operations and experiments during the JET-ILW tritium and DTE2 campaigns

AIP Conference Proceedings, 2023
24TH TOPICAL CONFERENCE ON RADIO-FREQUENCY POWER IN PLASMAS, Annapolis, USA; AIP conference proceedings 2984, 030003 (2023).
Jacquet P., Lerche E., Mantsinen M., Van Eester D., Kirov K., Mantica P., Gallart D., Taylor D., Kazakov Y., Monakhov I., Noble C., Dumortier P., Sheikh H., Challis C., Hobirk J., Kappatou A., Maslov M., King D., Keeling D., Rimini F., Frigione D., Garzotti L., Lomas P., Lowry C., Carvalho I., Baruzzo M., Reux C., Lenholm M., Henriques R., De la Luna E., Mailloux J., Maggi C., Garcia J., Chomiczewska A., Gromelski W., Bobkov V., Milanesio D., Colas L., Tierens W., Otin R., Klepper C., Delabie E., Dumont R., Eriksson J., Kiptily V., Menmuir S., Nocente M., Patel A., Pucella G., Rigamonti D., Tardocchi M., Silburn S., Siren P., Solano E., Stancar Z., Valisa M., Douai D., Matveev D., Wauters T., JET contributors.   +59 more
openaire   +3 more sources

Spectroscopic investigation of N and Ne seeded induced detachment in JET ITER-like wall L-modes combining experiment and EDGE2D modeling

Nuclear Materials and Energy, 2019
Modeling and experimental investigation of the distribution of seeded impurities and their influence on divertor detachment in all-metal tokamaks is critical for developing reactor-scale exhaust scenarios. In this work, the degree and operating space for
B. Lomanowski, M. Carr, A. Field, M. Groth, A.E. Jaervinen, C. Lowry, A.G. Meigs, S. Menmuir, M. O'Mullane, M.L. Reinke, C.K. Stavrou, S. Wiesen   +11 more
doaj   +1 more source