Overview of the JET preparation for deuterium–tritium operation with the ITER like-wall

E. Joffrin, S.S. Henderson, EUROfusion Consortium JET

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

For the past several years, the JET scientific programme (Pamela et al 2007 Fusion Eng. Des. 82 590) has been engaged in a multi-campaign effort, including experiments in D, H and T, leading up to 2020 and the first experiments with 50%/50% D-T mixtures since 1997 and the first ever D-T plasmas with the ITER mix of plasma-facing component materials. For this purpose, a concerted physics and technology programme was launched with a view to prepare the D-T campaign (DTE2). This paper addresses the key elements developed by the JET programme directly contributing to the D-T preparation. This intense preparation includes the review of the physics basis for the D-T operational scenarios, including the fusion power predictions through first principle and integrated modelling, and the impact of isotopes in the operation and physics of D-T plasmas (thermal and particle transport, high confinement mode (H-mode) access, Be and W erosion, fuel recovery, etc). This effort also requires improving several aspects of plasma operation for DTE2, such as real time control schemes, heat load control, disruption avoidance and a mitigation system (including the installation of a new shattered pellet injector), novel ion cyclotron resonance heating schemes (such as the three-ions scheme), new diagnostics (neutron camera and spectrometer, active Alfven eigenmode antennas, neutral gauges, radiation hard imaging systems...) and the calibration of the JET neutron diagnostics at 14 MeV for accurate fusion power measurement. The active preparation of JET for the 2020 D-T campaign provides an incomparable source of information and a basis for the future D-T operation of ITER, and it is also foreseen that a large number of key physics issues will be addressed in support of burning plasmas.

Original languageEnglish
Article number112021
Pages (from-to)1-25
Number of pages25
JournalNuclear Fusion
Volume59
Issue number11
Early online date17 May 2019
DOIs
Publication statusPublished - 30 Aug 2019

Fingerprint

preparation
physics
fusion
neutrons
avoidance
thermal plasmas
cyclotron resonance
injectors
pellets
erosion
installing
ions
antennas
isotopes
recovery
cameras
spectrometers
heat
heating
radiation

Keywords

  • JET
  • plasma
  • fusion
  • ITER

Cite this

Joffrin, E. ; Henderson, S.S. ; EUROfusion Consortium JET. / Overview of the JET preparation for deuterium–tritium operation with the ITER like-wall. In: Nuclear Fusion. 2019 ; Vol. 59, No. 11. pp. 1-25.
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Joffrin, E, Henderson, SS & EUROfusion Consortium JET 2019, 'Overview of the JET preparation for deuterium–tritium operation with the ITER like-wall', Nuclear Fusion, vol. 59, no. 11, 112021, pp. 1-25. https://doi.org/10.1088/1741-4326/ab2276

Overview of the JET preparation for deuterium–tritium operation with the ITER like-wall. / Joffrin, E.; Henderson, S.S.; EUROfusion Consortium JET.

In: Nuclear Fusion, Vol. 59, No. 11, 112021, 30.08.2019, p. 1-25.

Research output: Contribution to journalArticle

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