Transient transport analysis of improved confinement plasmas in LHD

K. Ida, S. Inagaki, R. Sakamoto, N. Tamura, K. Tanaka, H. Funaba, S. Morita, Y. Takeiri, K. Ikeda, T. Shimozuma, S. Kubo, C. Michel, T. Tokuzawa, O. Kaneko, A. Komori, O. Motojima

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

The transient transport analysis applied to the improved modes in LHD clearly show a bifurcation characteristics both in the inner and outer region of the plasma. The transient bifurcation of transport appears in the inner region of the plasma (r < a/2) after the TESPEL injection as a drop of heat flux associated with the spontaneous rise of electron temperature. in the with ITB and also outer region of the plasma in the pellet enhanced mode. The region where the bifurcation appears is consistent with the region where the ITB appears. The other bifurcation between gyro-Bhom transport and a weak temperature dependent transport is observed after the repetitive pellet injection in the outer region of the plasma [r > (2/3)a]. The time trace of heat flux and temperature gradient shows a negative transient thermal diffusivity, which is a clear evidence of bifurcation of transport.

本文言語英語
ホスト出版物のタイトル32nd EPS Conference on Plasma Physics 2005, EPS 2005, Held with the 8th International Workshop on Fast Ignition of Fusion Targets - Europhysics Conference Abstracts
ページ45-48
ページ数4
出版ステータス出版済み - 12 1 2005
外部発表はい
イベント32nd European Physical Society Conference on Plasma Physics and Controlled Fusion combined with the 8th International Workshop on Fast Ignition of Fusion Targets - Tarragona, スペイン
継続期間: 6 27 20057 1 2005

出版物シリーズ

名前32nd EPS Conference on Plasma Physics 2005, EPS 2005, Held with the 8th International Workshop on Fast Ignition of Fusion Targets - Europhysics Conference Abstracts
1

その他

その他32nd European Physical Society Conference on Plasma Physics and Controlled Fusion combined with the 8th International Workshop on Fast Ignition of Fusion Targets
Countryスペイン
CityTarragona
Period6/27/057/1/05

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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