Results 11 to 20 of about 326,732 (142)

Pedestal structure, stability and scalings in JET-ILW: the EUROfusion JET-ILW pedestal database [PDF]

Nuclear Fusion, 2020
Abstract The EUROfusion JET-ILW pedestal database is described, with emphasis on three main issues. First, the technical aspects are introduced, including a description of the data selection, the datasets, the diagnostics used, the experimental and theoretical methods implemented and the main definitions.
Frassinetti, L., Saarelma, S., Verdoolaege, G., Groth, M., Hillesheim, J. C., Bilkova, P., Bohm, P., Dunne, M., Fridström, R., Giovannozzi, E., Imbeaux, F., Labit, B., De La Luna, E., Maggi, C., Owsiak, M., Scannell, R., JET Contributors   +16 more
core   +10 more sources

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   +9 more sources

ICRH physics and technology achievements in JET-ILW [PDF]

EPJ Web of Conferences, 2017
ICRH was extensively used in the 2015-16 JET-ILW (ITER like wall) experimental campaign; bulk heating together with high-Z impurity chase-out from plasma centre importantly contributed to the good DD fusion performance obtained recently in JET.
Jacquet P., Van Eester D., Lerche E., Bobkov V., Blackman T., Colas L., Challis C., Czarnecka A., Dumortier P., Frigione D., Durodié F., Garzotti L., Goniche M., Graves J., Kazakov Y., Kirov K., Klepper C. C., Krawczyk N., Krivska A., Mantsinen M., Monakhov I., Nunes I., Ongena J., Reinke M., Rimini F., Zhang W.   +25 more
doaj   +5 more sources

Quartz micro-balance results of pulse-resolved erosion/deposition in the JET-ILW divertor [PDF]

Nuclear Materials and Energy, 2017
A set of quartz crystal microbalances (QMB) was used at JET with full carbon wall to monitor mass erosion/deposition rates in the remote areas of the divertor.
G. Sergienko, H.G. Esser, A. Kirschner, A. Huber, M. Freisinger, S. Brezinsek, A. Widdowson, Ch. Ayres, A. Weckmann, K. Heinola   +9 more
doaj   +2 more sources

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   +7 more sources

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., Calabro, G., Clever, M., Esser Hg, Guillemaut, C., Jachmich, S., Jarvinen, A., Linsmeier, C., Matthews Gf, Meigs Ag, Mertens, P., Brezinsek, S., Philipps, V., Stamp, M., Wischmeier, M., Wiesen, S., Sergienko, G., Groth, M., De Vries Pc, Aho-mantila, L., Arnoux, G., Bernert, M., Beurskens Mna   +22 more
core   +6 more sources

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   +2 more sources

Qualitative effects of resistivity in JET-ILW Europed pedestal predictions

Nuclear Fusion
The effect of resistive MHD in the pedestal predictions for JET-ILW has been investigated, using the Europed workflow (Saarelma et al 2018 Plasma Phys. Control. Fusion 60 014042) with the resistive MHD stability code CASTOR (Kerner et al 1998 J.
A. Lafay-Labrosse, H. Nyström, L. Frassinetti, S. Saarelma, JET Contributors, The EUROfusion Tokamak Exploitation Team   +5 more
doaj   +2 more sources

Pedestal structure and stability in JET-ILW and comparison with JET-C

, 2020
Kontrollerad termonukleär fusion erbjuder ett lovande koncept för säker och hållbar energiproduktion. Det finns dock fortfarande många frågor som ska undersökas på väg till en kommersiell fusionsreaktor. En viktig aspekt är väggmaterialet som innesluter det varma termonukleära plasmat.
Stefanikova, Estera
core   +4 more sources

Mixed hydrogen-deuterium plasmas on JET ILW [PDF]

Nuclear Fusion, 2020
A study of mixed hydrogen-deuterium H-mode plasmas has been carried out in JET-ILW to strengthen the physics basis for extrapolations to JET D-T operation and to support the development of strategies for isotope ratio control in future experiments. Variations of input power, gas fuelling and isotopic mixture were performed in H-mode plasmas of the same
D.B. King, E. Viezzer, I. Balboa, M. Baruzzo, E. Belonohy, J. Buchanan, I.S. Carvalho, K. Cave-Ayland, C.D. Challis, I. Coffey, E.G. Delabie, L. Garzotti, S. Hall, J.C. Hillesheim, L. Horvath, E. Joffrin, D. Keeling, K. Kirov, C.F. Maggi, M. Maslov, S. Saarelma, S. Silburn, E.R. Solano, D. Valcarcel, JET contributors   +24 more
openaire   +3 more sources