M. Mantsinen P. Jacquet E. Lerche D. Gallart K. Kirov P. Mantica D. Taylor D. Van Eester M. Baruzzo I. Carvalho C. Challis E. Delabie E. De La Luna R. Dumont P. Dumortier J. Eriksson D. Frigione J. Garcia L. Garzotti C. Giroud R. Henriques J. Hobirk A. Kappatou Y. Kazakov D. Keeling D. King V. Kiptily M. Lenholm P. Lomas C. Lowry C. Maggi J. Mailloux M. Maslov S. Menmuir I. Monakhov R.B. Morales C. Noble M. Nocente A. Patel G. Pucella C. Reux D. Rigamonti F. Rimini A. Sheikh S. Silburn P. Siren E. Solano Z. Stancar M. Tardochi
The reference ion cyclotron resonance frequency (ICRF) heating schemes for ITER deuterium-tritium (D-T) plasmas at the full magnetic field of 5.3 T are second harmonic heating of tritium and 3He minority heating. The wave-particle resonance location for these schemes coincide and are central at a wave frequency of 53 MHz at 5.3T [1]. Experiments ha…
PublishedP. A. Schneider C. Angioni F. Auriemma N. Bonanomi T. Görler R. Henriques L. Horvath D. King H. Nyström M. Maslov J. Ruiz G. Szepesi C. Challis E. Delabie J. M. Fontdecaba L. Frassinetti G. Garcia C. Giroud J. Hillesheim J. Hobirk A. Kappatou D. L. Keeling M. Lennholm B. Lomanowski T. Luda di Cortemiglia R. Lorenzini C. F. Maggi S. Menmuir A. Thorman
During the DTE2 campaign in the JET tokamak we performed a parameter scan in T and D-T complementing existing pulses in H and D. For the different main ion masses H-modes at fixed plasma current and magnetic field can have the pedestal pressure varying by a factor of 4 and the total pressure changing from betaN = 1.0 to 3.0. Based on this wide data…
PreprintE.R. Solano G. Birkenmeier C. Silva E. Delabie J.C. Hillesheim A. Baciero I. Balboa M. Baruzzo A. Boboc M. Brix C. Bourdelle I.S. Carvalho P. Carvalho C.D. Challis M. Chernyshova A. Chomiczewska R. Coelho T. Craciunescu E. de la Cal E. de la Luna R. Dumont P. Dumortier M. Fontana J.M. Fontdecaba L. Frassinetti D. Gallart J. Garcia C. Giroud W. Gromelski R.B. Henriques J. Hall A. Ho L. Horvath P. Jacquet I. Jepu E. Joffrin A. Kappatou P.J. Lomas D.L. Keeling D.B. King E. Kowalska-Strzęciwilk M. Lennholm E. Lerche E. Litherland-Smith V.G. Kiptily K.K. Kirov A. Loarte B. Lomanowski C.F. Maggi J. Mailloux M.J. Mantsinen M. Maslov A.G. Meigs I. Monakhov R.B. Morales A.H. Nielsen D. Nina C. Noble E. Pawelec M. Poradzinski G. Pucella P. Puglia D. Réfy J.J. Rasmussen E. Righi-Steele F.G. Rimini T. Robinson M. Sertoli S.A. Silburn P. Sirén Ž. Štancar H.J. Sun G. Szepesi D. Taylor B. Thomas E. Tholerus G. Verdoolaege P. Vincenzi B. Viola N. Vianello T. Wilson
Preprint Published
Ž. Štancar K. Kirov F. Auriemma H.-T. Kim M. Poradzinski R. Sharma R. Lorenzini Z. Ghani M. Gorelenkova F. Poli A. Boboc S. Brezinsek P. Carvalho F. J. Casson C. Challis E. Delabie D. Van Eester M. Fitzgerald J. M. Fontdecaba J. Garcia L. Garzotti C. Giroud A. Kappatou Y. Kazakov D. King V. Kiptily D. Kos E. Lerche E. Litherland-Smith C. Maggi P. Mantica M. J. Mantsinen M. Maslov S. Menmuir M. Nocente J. Oliver S. Sharapov P. Siren E. R. Solano H. J. Sun G. Szepesi JET Contributors
In the paper we present an overview of interpretive modelling of a database of JET-ILW 2021 D-T discharges using the TRANSP code. Our main aim is to assess our capability of computationally reproducing the fusion performance of various D-T plasma scenarios using different external heating and D-T mixtures, and understand the performance driving mec…
PublishedR. B. Morales A. Salmi P. Abreu C. H. S. Amador P. Carman J. Fessey J. Flanagan M. Fontana C. Giroud S. Hacquin S. Heuraux L. Meneses R. Sabot A. Silva A. Sirinelli G. Szepesi D. Taylor D. Terranova
JET’s frequency-modulated continuous-wave (FMCW) reflectometers have been operating well with the current design since 2005 and density profiles are being automatically calculated intershot since then[1]. However, the calculated profiles had long suffered from several shortcomings – poor agreement to other diagnostics; sometimes inappropriat…
PreprintN. VIANELLO N. WALKDEN M. DUNNE B. LOMANOWSKI E. WOLFRUM C. TSUI A. STAGNI M. GRIENER B. TAL T. EICH D. REFY D. BRIDA O. FEVRIER M. AGOSTINI H. DE OLIVEIRA S. ALEIFERIS M. BERNERT J. BOEDO M. BRIX D. CARRALERO I. CARVALHO L. FRASSINETTI C. GIROUD A. HAKOLA A. HUBER . KARHUNEN J, A. KARPUSHOV B. LABIT A. MEIGS V. NAULIN T. PEREIRA C. PEREZ VON THUN H. REIMERDES C. THEILER the ASDEX Upgrade Team the TCV team the EUROfusion MST1 Team the JET Contributors
The evolution of SOL density profiles and fluctuations have been studied at different recycling levels in 3 different tokamaks, ASDEXUpgrade, TCV and JET, all operated in HMode. In all devices we clearly observe an increase of far SOL efolding length at high …
Preprint PublishedHJ. Sun SA. Silburn IS. Carvalho C Giroud G Fishpool GF. Matthews DB. King RB. Henriques DL. Keeling FG. Rimini L. Garzotti D. Frigione D. Van Eester D Kos M-L. Mayoral J. Mailloux C. Maggi A. Huber D. Douai PJ. Lomas L Morten M. Maslov K. Kirov P. Jacquet CG. Lowry M. Baruzzo C. Stuart J. Mitchell L. Horvath DC. McDonald JET Contributors
Unusually high power loads on the Beryllium limiter caused by Neutral Beam re-ionisation, and much cooler divertor target surfaces were observed during the recent JET tritium campaign. As both phenomena are driven by scrape-off layer (SOL) physics, the SOL features of 72 tritium H-mode discharges and their deuterium references have been studied. …
Preprint PublishedM. VALOVIČ Y. BARANOV A. BOBOC J. BUCHANAN J. CITRIN E. DELABIE L. GARZOTTI C. GIROUD R. MCKEAN E. LERCHE E. DE LA LUNA V. KIPTILY F. KÖCHL M. MARIN S. MENMUIR C. VON THUN G. TVALASHVILI AND THE JET CONTRIBUTORS
Control of plasma H:D isotope mix using solely shallow pellets (in H or D) was demonstrated in recent experiments, attaining ~50%:50% ratio. The isotope mix propagates from the edge to the core on the confinement timescale. Isotope dependence of energy confinement is within error bar to scaling laws. A dataset is collected for different pellet s…
PreprintC. Giroud S. Brezinsek R. Pitts I.S. Carvalho A. Huber E. Kaveeva D. Keeling J. Mailloux S. Aleiferis B. Chapman S. Henderson L. Garzotti E. Lerche M. MArin M. Maslov M. Brix P. Carvalho I. Coffey J. Fontdecaba L. Horvath I. Jepu J. Karhunen E. Litherland-Smith A. Meigs R.B. Morales T. Pereira D. Refy Z. Stancar M. Sertoli S. Silburn G. Szepesi A. Thorman M. Tomes I. Veselova B. Viola S. Wiesen JET contributors,
JET has investigated one the key issues for the baseline scenario in ITER, the integration of a radiative divertor for heat load control with the use of neon and nitrogen as seed impurity. A characterization of the choice of the impurity seed on plasma confinement, neutrons, pedestal MHD stability, pedestal instabilities, core transport is given…
PreprintH. Weisen C.F. Maggi M. Oberparleiter F.J. Casson S. Menmuir L Horvath F. Auriemma T.W. Bache N. Bonanomi Y. Camenen A. Chankin E. Delabie L. Frassinetti J. Garcia C. Giroud D. King R Lorenzini M. Marin P.A. Schneider P. Siren J. Varje E. Viezzer JET contributors
The isotope dependence of plasma transport has a significant impact on the performance of future D-T experiments in JET and ITER and eventually on the fusion gain and economics of future reactors. In preparation for future D-T operation on JET, dedicated experiments and comprehensive transport analysis were performed in H, D and H-D mixed plasma…
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