Results 51 to 60 of about 166 (115)

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

Parameter dependencies of the experimental nitrogen concentration required for detachment on ASDEX Upgrade and JET

Nuclear Materials and Energy, 2021
While current tokamak experiments are beginning to use real-time feedback control systems to manage the plasma exhaust, future tokamaks still require validation of theoretical models used to predict the threshold impurity concentration required to ...
S.S. Henderson, M. Bernert, C. Giroud, D. Brida, M. Cavedon, P. David, R. Dux, J.R. Harrison, A. Huber, A. Kallenbach, J. Karhunen, B. Lomanowski, G. Matthews, A. Meigs, R.A. Pitts, F. Reimold, M.L. Reinke, S. Silburn, N. Vianello, S. Wiesen, M. Wischmeier   +20 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

Composition of electron temperature gradient driven plasma turbulence in JET-ILW tokamak plasmas

Physical Review Research
This letter reports on new fundamental insights into small scale plasma turbulence that is responsible for confinement degradation on the JET tokamak. We compare the structure of electron temperature gradient (ETG) driven turbulence in the edge region of
B. Chapman-Oplopoiou, J. Walker, D. R. Hatch, T. Görler, JET contributors   +4 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

ICRH system performance during ITER-Like Wall operations at JET and the outlook for DT campaign

EPJ Web of Conferences, 2017
Performance of JET ICRH system since installation of the metal ITER-Like Wall (ILW) has been assessed statistically. The data demonstrate steady increase of the RF power coupled to plasmas over recent years with the maximum pulse-average and peak values ...
Monakhov Igor, Blackman Trevor, Dumortier Pierre, Durodié Frederic, Jacquet Philippe, Lerche Ernesto, Noble Craig   +6 more
doaj   +1 more source

Modelling of tungsten erosion and deposition in the divertor of JET-ILW in comparison to experimental findings

Nuclear Materials and Energy, 2019
The erosion, transport and deposition of tungsten in the outer divertor of JET-ILW has been studied for an H-Mode discharge with low frequency ELMs.
A. Kirschner, S. Brezinsek, A. Huber, A. Meigs, G. Sergienko, D. Tskhakaya, D. Borodin, M. Groth, S. Jachmich, J. Romazanov, S. Wiesen, Ch. Linsmeier   +11 more
doaj   +1 more source

An analytical expression for ion velocities at the wall including the sheath electric field and surface biasing for erosion modeling at JET ILW

Nuclear Materials and Energy, 2017
For simulation of plasma-facing component erosion in fusion experiments, an analytical expression for the ion velocity just before the surface impact including the local electric field and an optional surface biasing effect is suggested.
I. Borodkina, D. Borodin, S. Brezinsek, A. Kirschner, I.V. Tsvetkov, V.A. Kurnaev, V. Bobkov, C.C. Klepper, A. Lasa, C. Guillemaut, P. Jacquet, M.F. Stamp, C. Giroud, S. Silburn, I. Balboa, E. Solano   +15 more
doaj   +1 more source

Divertor currents optimization procedure for JET-ILW high flux expansion experiments [PDF]

Fusion Engineering and Design, 2018
This paper deals with a divertor coil currents optimized procedure to design High Flux Expansion (HFE) configurations in the JET tokamak aimed to study the effects of flux expansion variation on the radiation fraction and radiated power re-distribution.
Calabrò, G., Maviglia, F., Minucci, S., Viola, B., X. Litaudon, S. Abduallev, M. Abhangi, P. Abreu, M. Afzal, K. M. Aggarwal, T. Ahlgren, J. H. Ahn, L. Aho-Mantila, N. Aiba, M. Airila, R. Albanese, V. Aldred, D. Alegre, E. Alessi, P. Aleynikov, A. Alfier, A. Alkseev, M. Allinson, B. Alper, E. Alves, G. Ambrosino, R. Ambrosino, L. Amicucci, V. Amosov, E. Andersson Sundén, M. Angelone, M. Anghel, C. Angioni, L. Appel, C. Appelbee, P. Arena, M. Ariola, H. Arnichand, S. Arshad, A. Ash, N. Ashikawa, V. Aslanyan, O. Asunta, F. Auriemma, Y. Austin, L. Avotina, M. D. Axton, C. Ayres, M. Bacharis, A. Baciero, D. Baião, S. Bailey, A. Baker, I. Balboa, M. Balden, N. Balshaw, R. Bament, J. W. Banks, Y. F. Baranov, M. A. Barnard, D. Barnes, M. Barnes, R. Barnsley, A. Baron Wiechec, L. Barrera Orte, M. Baruzzo, V. Basiuk, M. Bassan, R. Bastow, A. Batista, P. Batistoni, R. Baughan, B. Bauvir, L. Baylor, B. Bazylev, J. Beal, P. S. Beaumont, M. Beckers, B. Beckett, A. Becoulet, N. Bekris, M. Beldishevski, K. Bell, F. Belli, M. Bellinger, É. Belonohy, N. Ben Ayed, N. A. Benterman, H. Bergsåker, J. Bernardo, M. Bernert, M. Berry, L. Bertalot, C. Besliu, M. Beurskens, B. Bieg, J. Bielecki, T. Biewer, M. Bigi, P. Bílková, F. Binda, A. Bisoffi, J. P. S. Bizarro, C. Björkas, J. Blackburn, K. Blackman, T. R. Blackman, P. Blanchard, P. Blatchford, V. Bobkov, A. Boboc, G. Bodnár, O. Bogar, I. Bolshakova, T. Bolzonella, N. Bonanomi, F. Bonelli, J. Boom, J. Booth, D. Borba, D. Borodin, I. Borodkina, A. Botrugno, C. Bottereau, P. Boulting, C. Bourdelle, M. Bowden, C. Bower, C. Bowman, T. Boyce, C. Boyd, H. J. Boyer, J. M. A. Bradshaw, V. Braic, R. Bravanec, B. Breizman, S. Bremond, P. D. Brennan, S. Breton, A. Brett, S. Brezinsek, M. D. J. Bright, M. Brix, W. Broeckx, M. Brombin, A. Brosławski, D. P. D. Brown, M. Brown, E. Bruno, J. Bucalossi, J. Buch, J. Buchanan, M. A. Buckley, R. Budny, H. Bufferand, M. Bulman, N. Bulmer, P. Bunting, P. Buratti, A. Burckhart, A. Buscarino, A. Busse, N. K. Butler, I. Bykov, J. Byrne, P. Cahyna, G. Calabrò, I. Calvo, Y. Camenen, P. Camp, D. C. Campling, J. Cane, B. Cannas, A. J. Capel, P. J. Card, A. Cardinali, P. Carman, M. Carr, D. Carralero, L. Carraro, B. B. Carvalho, I. Carvalho, P. Carvalho, F. J. Casson, C. Castaldo, N. Catarino, J. Caumont, F. Causa, R. Cavazzana, K. Cave-Ayland, M. Cavinato, M. Cecconello, S. Ceccuzzi, E. Cecil, A. Cenedese, R. Cesario, C. D. Challis, M. Chandler, D. Chandra, C. S. Chang, S. Coda, M. Enachescu, A. Fanni, R. Fresa, M. García-Muñoz, P. Hawkins, A. Jardin, B. Kos, T. Koskela, A. Loarte, A. Lukin, R. Makwana, C. Marchetto, S. Matejcik, V. Plyusnin, D. Réfy, F. Romanelli, O. Sauter, S. Soare, F. Subba, W. Tang, M. Tokitani, J. Vicente   +222 more
openaire   +4 more sources