Modelling one-third field operation in the ITER pre-fusion power operation phase

Nuclear Fushion

article

M. Schneider¹  A.R. Polevoi¹  S.H. Kim¹  A. Loarte¹  S.D. Pinches¹  J-F. Artaud²  E. Militello-ASP³  B. Beaumont¹  R. Bilato⁴  D. Boilson¹  D.J. Campbell¹  P. Dumortier⁵  D. Farina⁶  L. Figini⁶  Y. Gribov¹  M. Henderson¹  R.R. Khayrutdinov³  A.A. Kavin⁷  F. Köchl⁸  T. Kurki-Suonio⁹  A. Kuyanov³  P. Lamalle¹  E. Lerche⁵  V.E. Lukash³  A. Messiaen⁵  V. Parail⁸  K. Särkimäki⁹  A. Snicker⁹  D. Van Eester⁵ 

[1] ITER Organization;CEA;NRC Kurchatov Institute;Max-Planck Institut für Plasmaphysik;LPP-ERM/KMS;Istituto di Fisica del Plasma;Joint Stock Company ‘D.V. Efremov Institute of Electrophysical Apparatus’ Saint Petersburg;CCFE, Culham Science Centre;Department of Applied Physics, Aalto University

关键词: heating and current drive;    ITER;    one-third field operation;    NBI;    ICRH;    ECRH;    tokamak;   

DOI  :  10.1088/1741-4326/ab3de0

来源: Institute of Physics Publishing Ltd.

【 摘 要 】

In the four-stage approach of the new ITER Research Plan, the first pre-fusion power operation (PFPO) phase will only have limited power available from external heating and current drive (H&CD) systems: 20–30 MW provided by the electron cyclotron resonance heating (ECRH) system. Accessing the H-mode confinement regime at such low auxiliary power requires operating at low magnetic field, plasma current and density, i.e. 1.8 T and 5 MA for a density between 40% and 50% of the Greenwald density. H-mode plasmas at 5 MA/1.8 T will also be investigated in the second PFPO phase when ITER will have its full complement of H&CD capabilities installed, i.e. 20–30 MW of ECRH, 20 MW of ion cyclotron resonance heating and 33 MW of neutral beam injection. This paper describes the operational constraints and the H&CD capabilities for such scenarios in hydrogen and helium plasmas, to assess their viability and the issues it will be possible to address with them. The modelling results show that 5 MA/1.8 T scenarios are viable and will allow the exploration of the H-mode physics and control issues foreseen in the ITER Research Programme in the PFPO phases.

【 授权许可】

Unknown