Radiation profile measurements for edge transport barrier discharges in the compact helical system

C. Suzuki, S. Okamura, T. Minami, T. Akiyama, A. Fujisawa, K. Ida, M. Isobe, K. Matsuoka, K. Nagaoka, S. Nishimura, B. J. Peterson, A. Shimizu, C. Takahashi, K. Toi, Y. Yoshimura

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

Abstract

We have measured the spatial distributions of the radiation emissivity in the ETB discharges in CHS by using an AXUV photodiode array. The radiation profile rapidly changes into more hollow one immediately after the spontaneous transition to the ETB phase, which implies the impurity transport is reduced near the plasma boundary due to the ETB formation. This implication is supported by the observations of the time evolutions of the metallic impurity line intensities from the plasma core. Quantitative analyses of impurity transport based on numerical codes is required in the future work.

Original languageEnglish
Title of host publication33rd EPS Conference on Plasma Physics 2006, EPS 2006 - Europhysics Conference Abstracts
Pages1588-1591
Number of pages4
Publication statusPublished - Dec 1 2006
Externally publishedYes
Event33rd European Physical Society Conference on Plasma Physics 2006, EPS 2006 - Rome, Italy
Duration: Jun 19 2006Jun 23 2006

Publication series

Name33rd EPS Conference on Plasma Physics 2006, EPS 2006
Volume2

Other

Other33rd European Physical Society Conference on Plasma Physics 2006, EPS 2006
CountryItaly
CityRome
Period6/19/066/23/06

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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  • Cite this

    Suzuki, C., Okamura, S., Minami, T., Akiyama, T., Fujisawa, A., Ida, K., Isobe, M., Matsuoka, K., Nagaoka, K., Nishimura, S., Peterson, B. J., Shimizu, A., Takahashi, C., Toi, K., & Yoshimura, Y. (2006). Radiation profile measurements for edge transport barrier discharges in the compact helical system. In 33rd EPS Conference on Plasma Physics 2006, EPS 2006 - Europhysics Conference Abstracts (pp. 1588-1591). (33rd EPS Conference on Plasma Physics 2006, EPS 2006; Vol. 2).