ECH and hhfw start-up experiments on the TST-2 spherical tokamak

A. Ejiri, T. Oosako, J. Tsujimura, Y. Shimada, Y. Takase, Y. Torii, M. Sasaki, H. Tqjo, T. Masuda, H. Nuga, N. Sumitomo, S. Kainaga, J. Sugiyama, N. Tsujii

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5 Citations (Scopus)


Plasma start-up experiments without using inductive field have been performed on the TST-2 spherical tokamak device. A low power ECH (2.45GHz/4kW) and a medium power High Harmonic Fast Wave (HHFW) (21 MHz/up to 50kW) were used. Comparisons of various operational parameters were carried out to find the optimum conditions for the toroidal and the poloidal field strengths, poloidal field configurations, ECH power and HHFW power. Using only ECH, currents up to about 0.4 kA were generated. Current increments by up to 0.4 kA were observed when we apply HHFW to ECH plasmas.

Original languageEnglish
Pages (from-to)168-170
Number of pages3
JournalFusion Science and Technology
Issue number2 T.
Publication statusPublished - Feb 2007
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • General Materials Science
  • Mechanical Engineering


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