Nuclear Fusion (Jan 2024)

The core–edge integrated neon-seeded scenario in deuterium–tritium at JET

  • C. Giroud,
  • I.S. Carvalho,
  • S. Brezinsek,
  • A. Huber,
  • D. Keeling,
  • J. Mailloux,
  • R.A. Pitts,
  • E. Lerche,
  • R. Henriques,
  • J. Hillesheim,
  • K. Lawson,
  • M. Marin,
  • E. Pawelec,
  • M. Sos,
  • H.J. Sun,
  • M. Tomes,
  • S. Aleiferis,
  • A. Bleasdale,
  • M. Brix,
  • A. Boboc,
  • J. Bernardo,
  • P. Carvalho,
  • I. Coffey,
  • S. Henderson,
  • D.B. King,
  • F. Rimini,
  • M. Maslov,
  • E. Alessi,
  • T. Craciunescu,
  • M. Fontana,
  • J.M. Fontdecaba,
  • L. Garzotti,
  • Z. Ghani,
  • L. Horvath,
  • I. Jepu,
  • J. Karhunen,
  • D. Kos,
  • E. Litherland-Smith,
  • A. Meigs,
  • S. Menmuir,
  • R.B. Morales,
  • S. Nowak,
  • E. Peluso,
  • T. Pereira,
  • V. Parail,
  • G. Petravich,
  • G. Pucella,
  • P. Puglia,
  • D. Refy,
  • S. Scully,
  • M. Sertoli,
  • S. Silburn,
  • D. Taylor,
  • B. Thomas,
  • A. Tookey,
  • Ž. Štancar,
  • G. Szepesi,
  • B. Viola,
  • A. Widdowson,
  • E. de la Luna,
  • JET Contributors

DOI
https://doi.org/10.1088/1741-4326/ad69a2
Journal volume & issue
Vol. 64, no. 10
p. 106062

Abstract

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This paper reports the first experiment carried out in deuterium–tritium addressing the integration of a radiative divertor for heat-load control with good confinement. Neon seeding was carried out for the first time in a D–T plasma as part of the second D–T campaign of JET with its Be/W wall environment. The technical difficulties linked to the re-ionisation heat load are reported in T and D–T. This paper compares the impact of neon seeding on D–T plasmas and their D counterpart on the divertor detachment, localisation of the radiation, scrape-off profiles, pedestal structure, edge localised modes and global confinement.

Keywords