Nuclear Fusion (Jan 2024)

Achievement of the first tokamak plasma with low inductive electric field in JT-60SA

  • T. Wakatsuki,
  • H. Urano,
  • M. Yoshida,
  • N. Tsujii,
  • S. Inoue,
  • S. Kojima,
  • T. Nakano,
  • M. Fukumoto,
  • Y. Ohtani,
  • R. Sano,
  • S. Ide

DOI
https://doi.org/10.1088/1741-4326/ad75a7
Journal volume & issue
Vol. 64, no. 10
p. 104003

Abstract

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The world’s largest superconducting tokamak, JT-60SA, has successfully achieved its first plasma operation under the constraint of a low toroidal inductive electric field of 0.15 V m ^−1 . A plasma start-up scenario, leveraging the effective confinement of electrons accelerated by the electron cyclotron wave, proved to be instrumental in reaching this milestone under the challenging conditions. The demonstration of plasma start-up using second harmonic electron cyclotron heating, with an applied toroidal electric field of 0.15 V m ^−1 , strongly validates the feasibility of achieving first plasma operation in ITER.

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