Progress at JET in integrating ITER-relevant core and edge plasmas within the constrains of an ITER-like wall

C. Giroud (Corresponding Author), S. Jachmich, P. Jacquet, A. Järvinen, E. Lerche, F. Rimini, L. Aho-Mantila, N. Aiba, I. Balboa, P. Belo, C. Angioni, M. Beurskens, S. Brezinsek, F.J. Casson, I. Coffey, G. Cunningham, E. Delabie, S. Devaux, P. Drewelow, L. FrassinettiA. Figueiredo, A. Huber, J. Hilleshiem, L. Garzotti, M. Goniche, M. Groth, Hyun-Tae Kim, M. Leyland, P. Lomas, G. Maddison, S. Marsen, G. Matthews, A. Meigs, S. Menmuir, T. Puetterich, G. van Rooij, S. Saarelma, M. Stamp, H. Urano, A. Webster, JET EFDA Contributors

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44 Citations (Scopus)

Abstract

This paper reports the progress made at JET-ILW on integrating the requirements of the reference ITER baseline scenario with normalized confinement factor of 1, at a normalized pressure of 1.8 together with partially detached divertor whilst maintaining these conditions over many energy confinement times. The 2.5?MA high triangularity ELMy H-modes are studied with two different divertor configurations with D-gas injection and nitrogen seeding. The power load reduction with N seeding is reported. The relationship between an increase in energy confinement and pedestal pressure with triangularity is investigated. The operational space of both plasma configurations is studied together with the ELM energy losses and stability of the pedestal of unseeded and seeded plasmas. The achievement of stationary plasma conditions over many energy confinement times is also reported.
Original languageEnglish
Pages (from-to)35004-35023
JournalPlasma Physics and Controlled Fusion
Volume57
Issue number3
DOIs
Publication statusPublished - 2015
MoE publication typeA1 Journal article-refereed
Event41st EPS Conference on Plasma Physics - Berlin, Germany
Duration: 23 Jun 201427 Jun 2014

Keywords

  • plasma devices
  • tokamaks
  • divertors

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    Giroud, C., Jachmich, S., Jacquet, P., Järvinen, A., Lerche, E., Rimini, F., Aho-Mantila, L., Aiba, N., Balboa, I., Belo, P., Angioni, C., Beurskens, M., Brezinsek, S., Casson, F. J., Coffey, I., Cunningham, G., Delabie, E., Devaux, S., Drewelow, P., ... Contributors, JET. EFDA. (2015). Progress at JET in integrating ITER-relevant core and edge plasmas within the constrains of an ITER-like wall. Plasma Physics and Controlled Fusion, 57(3), 35004-35023. https://doi.org/10.1088/0741-3335/57/3/035004