Temporal evolutions of electron temperature and density of turbulently-heated tokamak plasmas in TRIAM-1

Naoji Hiraki, Kazuo Nakamura, Yukio Nakamura, Satoshi Itoh

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The temporal evolutions of the electron temperature and density are measured in a turbulent heating experiment in TRIAM-1. Skin-like profiles of the electron temperature and density are clearly observed. The anomality in the electrical resistivity of the plasma in this skin-layer is estimated, and the plasma heating in this skin-layer is regarded as being due to anomalous joule heating arising from this anomalous resistivity. The ratio of drift velocity to electron thermal velocity in the layer is also calculated, and it is shown that the conditions needed to make the current-driven ion-acoustic instability triggerable are satisfied.

Original languageEnglish
Pages (from-to)769-773
Number of pages5
JournalJapanese Journal of Applied Physics
Volume20
Issue number4
DOIs
Publication statusPublished - Jan 1 1981

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Electron temperature
Carrier concentration
Skin
electron energy
Plasmas
acoustic instability
Plasma heating
electrical resistivity
Joule heating
plasma heating
Acoustics
Heating
heating
Electrons
Ions
profiles
ions
electrons
Experiments

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Temporal evolutions of electron temperature and density of turbulently-heated tokamak plasmas in TRIAM-1. / Hiraki, Naoji; Nakamura, Kazuo; Nakamura, Yukio; Itoh, Satoshi.

In: Japanese Journal of Applied Physics, Vol. 20, No. 4, 01.01.1981, p. 769-773.

Research output: Contribution to journalArticle

Hiraki, Naoji ; Nakamura, Kazuo ; Nakamura, Yukio ; Itoh, Satoshi. / Temporal evolutions of electron temperature and density of turbulently-heated tokamak plasmas in TRIAM-1. In: Japanese Journal of Applied Physics. 1981 ; Vol. 20, No. 4. pp. 769-773.
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