Experiments on steady-state tokamak discharge by LHCD in TRIAM-1M

S. Itoh, N. Hiraki, Y. Nakamura, K. Nakamura, A. Nagao, S. Moriyama, T. Fujita, E. Jotaki, S. Kawasaki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

12 Citations (Scopus)

Abstract

Steady-state LHCD operation has been extended to pulse lengths beyond one hour in TRIAM-1M. Hall-effect sensors were used in the feedback loop for plasma position control. In the long duration discharge, a plasma current of 22 - 25 kA and a line-average electron density of about 2 × 1012 cm-3 were maintained nearly constant and no significant impurity accumulation was observed. High density (n̄e ≅ 1.0 × 1013 cm-3) current drive discharges were obtained by improving the accessibility of the plasma to LH waves. The current drive efficiency was improved by increasing the plasma density. The bulk plasma has better confinement properties than a low density OH plasma.

Original languageEnglish
Title of host publicationProc 13 Int Conf Plasma Phys Controlled Nucl Fusion Res
PublisherPubl by IAEA
Pages733-746
Number of pages14
ISBN (Print)9201300913
Publication statusPublished - Jan 1 1991

Publication series

NameProc 13 Int Conf Plasma Phys Controlled Nucl Fusion Res

Fingerprint

Plasmas
Plasma density
Experiments
Plasma confinement
Hall effect
Position control
Carrier concentration
Impurities
Feedback
Sensors

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Itoh, S., Hiraki, N., Nakamura, Y., Nakamura, K., Nagao, A., Moriyama, S., ... Kawasaki, S. (1991). Experiments on steady-state tokamak discharge by LHCD in TRIAM-1M. In Proc 13 Int Conf Plasma Phys Controlled Nucl Fusion Res (pp. 733-746). (Proc 13 Int Conf Plasma Phys Controlled Nucl Fusion Res). Publ by IAEA.

Experiments on steady-state tokamak discharge by LHCD in TRIAM-1M. / Itoh, S.; Hiraki, N.; Nakamura, Y.; Nakamura, K.; Nagao, A.; Moriyama, S.; Fujita, T.; Jotaki, E.; Kawasaki, S.

Proc 13 Int Conf Plasma Phys Controlled Nucl Fusion Res. Publ by IAEA, 1991. p. 733-746 (Proc 13 Int Conf Plasma Phys Controlled Nucl Fusion Res).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Itoh, S, Hiraki, N, Nakamura, Y, Nakamura, K, Nagao, A, Moriyama, S, Fujita, T, Jotaki, E & Kawasaki, S 1991, Experiments on steady-state tokamak discharge by LHCD in TRIAM-1M. in Proc 13 Int Conf Plasma Phys Controlled Nucl Fusion Res. Proc 13 Int Conf Plasma Phys Controlled Nucl Fusion Res, Publ by IAEA, pp. 733-746.
Itoh S, Hiraki N, Nakamura Y, Nakamura K, Nagao A, Moriyama S et al. Experiments on steady-state tokamak discharge by LHCD in TRIAM-1M. In Proc 13 Int Conf Plasma Phys Controlled Nucl Fusion Res. Publ by IAEA. 1991. p. 733-746. (Proc 13 Int Conf Plasma Phys Controlled Nucl Fusion Res).
Itoh, S. ; Hiraki, N. ; Nakamura, Y. ; Nakamura, K. ; Nagao, A. ; Moriyama, S. ; Fujita, T. ; Jotaki, E. ; Kawasaki, S. / Experiments on steady-state tokamak discharge by LHCD in TRIAM-1M. Proc 13 Int Conf Plasma Phys Controlled Nucl Fusion Res. Publ by IAEA, 1991. pp. 733-746 (Proc 13 Int Conf Plasma Phys Controlled Nucl Fusion Res).
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