Results 101 to 110 of about 166 (115)

A gyrokinetic perspective on the JET-ILW pedestal

Nuclear Fusion, 2017
JET has been unable to recover historical confinement levels when operating with an ITER-like wall (ILW) due largely to the inaccessibility of high pedestal temperatures. Finding a path to overcome this challenge is of utmost importance for both a prospective JET DT campaign and for future ITER operation.
D.R. Hatch, M. Kotschenreuther, S. Mahajan, P. Valanju, X. Liu   +4 more
openaire   +1 more source

Density limit of H-mode plasmas on JET-ILW

Journal of Nuclear Materials, 2015
High-density discharges on JET with ITER-like Wall (ILW) have been analysed with the aim of establishing a mechanism for the H-mode density limit (DL) and compared with experiments in the JET carbon material configuration. The density limit is up to 20% higher in the JET-ILW than in the JET-C machine. The observed H-mode density limit is found close to
Huber, A., Brezinsek, S., Sergienko, G., Groth, M., de Vries, P.C., Aho-Mantila, L., Arnoux, G., Bernert, M., Beurskens, M.N.A., Calabro, G., Clever, M., Esser, H.G., Guillemaut, C., Jachmich, S., Järvinen, A., Linsmeier, Ch., Matthews, G.F., Meigs, A.G., Mertens, Ph., Philipps, V., Stamp, M., Wischmeier, M., Wiesen, S.   +22 more
openaire   +4 more sources

Modelling with COREDIV Code of JET ILW Configuration

Contributions to Plasma Physics, 2010
AbstractIn this paper we present integrated numerical modeling for the first time applied to AT discharges with tungsten wall using the COREDIV code. We concentrate on numerical simulations of Ne seeded scenarios in the new ILW JET configuration. Results show that the JET operating space might be limited, with tungsten wall, to high density plasmas ...
Zagorski, R., Telesca, G., Fundamenski, W., McCormick, K.   +3 more
openaire   +2 more sources

Runaway beam studies during disruptions at JET-ILW

Journal of Nuclear Materials, 2015
Runaway electrons (RE) during disruptions are a concern for future tokamaks including ITER with its metallic wall. Although RE are rare in spontaneous disruptions with the JET ITER-like Wall (JET-ILW), RE beams up to 380 kA were obtained using massive injection (MGI) of argon in JET-ILW divertor discharges.
Bazylev, B., Belonohy, E., Brezinsek, S., Decker, J., Devaux, Stéphane, Vries, P., Fil, Alexandre, Gerasimov, S., Lupelli, Ivan, Jachmich, S., Khilkevitch, E. M., Kiptily, V., Koslowski, R., Kruezi, U., Lehnen, M., Manzanares, A., Mlynar, J., Nardon, Eric, Nilsson, E., Riccardo, V., St-Laurent, F., Shevelev, A. E., Sozzi, C., Contributors, Jet Efda, Reux, C., Plyusnin, V., Alper, B., Alves, D.   +27 more
openaire   +5 more sources

COREDIV numerical simulation of high neutron rate JET-ILW DD pulses in view of extension to JET-ILW DT experiments

Nuclear Fusion, 2019
Two high performance JET-ILW pulses, pertaining to the 2016 experimental campaign, have been numerically simulated with the self-consistent code COREDIV with the aim of predicting the ELM- averaged power load to the target when extrapolated to DT plasmas.
Telesca G, IvanovaStanik I, Zagorski R, Brezinsek S, Carvalho P J, Czarnecka A, Giroud C, Huber A, Lerche E, Wiesen S, Abduallev S, Abhangi M, Abreu P, Afanasev V, Afzal M, Aggarwal K M, Ahlgren T, AhoMantila L, Aiba N, Airila M, Alarcon T, Albanese R, Alegre D, Aleiferis S, Alessi E, Aleynikov P, Alkseev A, Allinson M, Alper B, Alves E, Ambrosino G, Ambrosino R, Amosov V, Sunden E Andersson, Andrews R, Angelone M, Anghel M, Angioni C, Appel L, Appelbee C, Arena P, Ariola M, Arshad S, Artaud J, Arter W, Ash A, Ashikawa N, Aslanyan V, Asunta O, Asztalos O, Auriemma F, Austin Y, Avotina L, Axton M, Ayres C, Baciero A, Baiao D, Balboa I, Balden M, Balshaw N, Bandaru V K, Banks J, Baranov Y F, Barcellona C, Barnard T, Barnes M, Barnsley R, Wiechec A Baron, Orte L Barrera, Baruzzo M, Basiuk V, Bassan M, Bastow R, Batista A, Batistoni P, Baumane L, Bauvir B, Baylor L, Beaumont P S, Beckers M, Beckett B, Bekris N, Beldishevski M, Bell K, Belli F, Belonohy E, Benayas J, Bergsaker H, Bernardo J, Bernert M, Berry M, Bertalot L, Besiliu C, Betar H, Beurskens M, Bielecki J, Biewer T, Bilato R, Biletskyi O, Bilkova P, Binda F, Birkenmeier G, Bizarro J P S, Bjorkas C, Blackburn J, Blackman T R, Blanchard P, Blatchford P, Bobkov V, Boboc A, Bogar O, Bohm P, Bohm T, Bolshakova I, Bolzonella T, Bonanomi N, Boncagni L, Bonfiglio D, Bonnin X, Boom J, Borba D, Borodin D, Borodkina I, Boulbe C, Bourdelle C, Bowden M, Bowman C, Boyce T, Boyer H, Bradnam S C, Braic V, Bravanec R, Breizman B, Brennan D, Breton S, Brett A, Brezinsek S, Bright M, Brix M, Broeckx W, Brombin M, Broslawski A, Brown B, Brunetti D, Bruno E, Buch J, Buchanan J, Buckingham R, Buckley M, Bucolo M, Budny R, Bufferand H, Buller S, Bunting P, Buratti P, Burckhart A, Burroughes G, Buscarino A, Busse A, Butcher D, Butler B, Bykov I, Cahyna P, Calabro G, Calacci L, Callaghan D, Callaghan J, Calvo I, Camenen Y, Camp P, Campling D C, Cannas B, Capat A, Carcangiu S, Card P, Cardinali A, Carman P, Carnevale D, Carr M, Carralero D, Carraro L, Carvalho B B, Carvalho I, Carvalho P, Carvalho D D, Casson F J, Castaldo C, Catarino N, Causa F, Cavazzana R, CaveAyland K, Cavedon M, Cecconello M, Ceccuzzi S, Cecil E, Challis C D, Chandra D, Chang C S, Chankin A, Chapman I T, Dal Molin A, Dreval M, Enachescu M, Fanni A, Figini L, Fresa R, Gervasini G, Ghezzi F, Innocente P, Kos B, Laguardia L, Leichtle D, Loarte A, Lukin A, Macusova E, Makwana R, Manduchi G, Marchetto C, Mariani A, Matejcik S, Murari A, Muraro A, Nordlund K, Nowak S, Paccagnella R, Pasqualotto R, Pavlichenko R, Plyusnin V, Pomaro N, Predebon I, Puiatti M E, Rebai M, Refy D, Ricci D, Rigamonti D, Romanelli F, Safi E, Sauter O, Soare S, Sozzi C, Subba F, Tardocchi M, Terranova D, Tokitani M, Uccello A, Vianello N, Vicente J, Wischmeier M   +247 more
openaire   +8 more sources

Pedestal confinement and stability in JET-ILW ELMy H-modes

Nuclear Fusion, 2015
Abstract New experiments in 2013–2014 have investigated the physics responsible for the decrease in H-mode pedestal confinement observed in the initial phase of JET-ILW operation (2012 Experimental Campaigns). The effects of plasma triangularity, global beta and neutrals on pedestal confinement and stability have been investigated ...
S. Saarelma, F. J. Casson, C. Challis, E. De La Luna, L. Frassinetti, C. Giroud, E. Joffrin, J. Simpson, M. Beurskens, I. Chapman, J. Hobirk, M. Leyland, P. Lomas, C. Lowry, I. Nunes, F. Rimini, A. C. C. Sips, H. Urano, M. Abhangi, P. Abreu, M. Aftanas, M. Afzal, K. M. Aggarwal, L. Aho-mantila, E. Ahonen, M. Aints, M. Airila, R. Albanese, D. Alegre, E. Alessi, P. Aleynikov, A. Alfier, A. Alkseev, P. Allan, S. Almaviva, A. Alonso, B. Alper, I. Alsworth, D. Alves, G. Ambrosino, R. Ambrosino, V. Amosov, F. Andersson, E. Anderssonsunde ́n, M. Angelone, A. Anghel, M. Anghel, C. Angioni, L. Appel, G. Apruzzese, P. Arena, M. Ariola, H. Arnichand, G. Arnoux, S. Arshad, A. Ash, E. Asp, O. Asunta, D. Cooper, S. R. Cooper, Y. Corre, G. Corrigan, S. Cortes, D. Coster, A. S. Couchman, M. Cox, M. P. Cox, P. Cox, T. Craciunescu, S. Cramp, F. Crisanti, I. Cristescu, G. Croci, O. Croft, K. Crombe ́, R. Crowe, N. Cruz, G. Cseh, K. Cull, L. Cupido, D. Curran, M. Curuia, A. Czarnecka, T. Czarski, S. Dalley, A. Dalziel, D. Darrow, R. Davies, W. Davis, C. Day, I. E. Day, E. De La Cal, E. De La Luna, M. De Magistris, J. L. De Pablos, G. De Tommasi, P. C. De Vries, K. Deakin, J. Deane, J. Decker, F. Degliagostini, R. Dejarnac, E. Delabie, N. Den Harder, R. O. Dendy, P. Denner, S. Devaux, P. Devynck, F. Di Maio, L. Di Pace, T. Dittmar, D. Dodt, T. Donne ́, P. Dooley, S. E. Dorling, S. Dormido-canto, S. Doswon, D. Douai, P. T. Doyle, T. Dreischuh, P. Drewelow, V. Drozdov, K. Drozdowicz, R. Dumont, P. Dumortier, C. V. Atanasiu, Y. Austin, L. Avotina, M. D. Axton, D. Dunai, M. Dunne, I. Dˇuran, F. Durodie ́, C. Ayres, C. Bachmann, A. Baciero, D. Baia ̃o, V. Bailescu, B. Baiocchi, A. Baker, R. A. Baker, I. Balboa, M. Balden, N. Balshaw, R. Bament, J. W. Banks, Y. F. Baranov, I. L. Barlow, M. A. Barnard, D. Barnes, R. Barnsley, A. Baron Wiechec, M. Baruzzo, V. Basiuk, M. Bassan, R. Bastow, A. Batista, P. Batistoni, R. Bauer, B. Bauvir, B. Bazylev, J. Beal, P. S. Beaumont, A. Becoulet, P. Bednarczyk, N. Bekris, M. Beldishevski, K. Bell, F. Belli, P. Dutta, B. Duval, R. Dux, K. Dylst, N. Dzysiuk, P. V. Edappala, A. M. Edwards, T.H. Eich, A. Ekedahl, T. Elevant, R. El-jorf, C. G. Elsmore, G. Ericsson, A. Eriksson, J. Eriksson, L. G. Eriksson, B. Esposito, H. G. Esser, D. Esteve, G. E. Evans, J. Evans, G. D. Ewart, D. T. Ewers, D. Fagan, D. Falie, J. W. Farthing, A. Fasoli, L. Fattorini, B. Faugeras, J. Faustin, N. Fawlk, B. Bieg, E. Blanco, C. S. Chang, R. Fresa, T. Koskela, A. Loarte, A. Lukin, R. Makwana, C. Marchetto, S. Matejcik, M. Mattei, A. Pironti, V. Plyusnin, A. Quercia, F. Romanelli, G. Rubinacci, S. Soare, M. M. Turner, J. Vicente, F. Villone   +219 more
openaire   +5 more sources

The development of safe high current operation in JET-ILW

Fusion Engineering and Design, 2015
Abstract The JET tokamak is unique amongst present fusion devices in its capability to operate at high plasma current, providing the closest plasma parameters to ITER. The physics benefits of high current operation have to be balanced against the risks to the integrity of the machine due to high force disruptions.
Rimini, Fernanda G., Alves, Diogo, Arnoux, Gilles, Baruzzo, Matteo, Belonohy, Eva, Carvalho, Ivo, Felton, Robert, Joffrin, Emmanuel, Lomas, Peter, McCullen, Paul, Neto, Andre, Nunes, Isabel, Reux, Cedric, Stephen, Adam, Valcarcel, Daniel, Wiesen, Sven   +15 more
openaire   +2 more sources

Co-deposited layers in the divertor region of JET-ILW

Journal of Nuclear Materials, 2015
Tungsten-coated carbon tiles from a poloidal cross-section of the divertor and several types of erosion- deposition probes from the shadowed areas in the divertor were studied using heavy ion elastic recoil detection to obtain quantitative and depth-resolved deposition patterns.
Petersson, P., Rubel, M., Esser, H.G., Likonen, Jari, Koivuranta, Seppo, Widdowson, A., JET-EFDA contributors   +6 more
openaire   +2 more sources

L-H transition studies in JET-ILW

2017
Recent experiments at JET have produced new results about the L-H transition. We will present a selection here. We found the power threshold depends on H/(H+D) species concentration in a non-linear manner, with much of the variation taking place at the extremes of the mixture scan.
Solano ER, Delabie E, Hillesheim, Maggi C, Vianello N, Carvalho I, Huber A, Lerche E   +7 more
openaire   +1 more source

ICRH for Mitigation of Core Impurity Accumulation in JET-ILW

2014
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E A Lerche, M Goniche, P Jacquet, D Van Eester, V Bobkov, L Colas, I Monakhov, C Noble, T Blackman, F Rimini, S Brezinsek, A Czarnecka, K Crombe, C Challis, D Remi, N Fedorczak, C Giroud, J Graves, J Hobirk, E Joffrin, V Kiptily, M Lennholm, P Lomas, C Maggi, L AhoMantila, P Mantica, G Matthews, ML Mayoral, J Mlynar, P MonierGarbet, M F Nave, I M Ferreira Nunes, V Petrzilka, T Putterich, M Reich, A Shaw, A Sips, M Tsalas, M Valisa   +38 more
openaire   +2 more sources