Real-time measurement and feedback control of ion temperature profile and toroidal rotation using fast CXRS system in JT-60U
In: Fusion engineering and design, Jg. 84 (2009), Heft 12, S. 2206-2213
academicJournal
- print, 27 ref
Zugriff:
A fast charge exchange recombination spectroscopy (CXRS) system has been developed for the real-time measurement and feedback control of ion temperature (Ti) profile and toroidal rotation velocity (Vt) in JT-60U. In order to control Ti and Vt in real-time, the charge exchange recombination spectroscopy with high time resolution, the real-time processor system, and the real-time control system have been developed. Utilizing this system, real-time control of the Ti gradient between r/a ∼ 0.25-0.5 has been demonstrated with neutral beams at high beta plasmas (normalized beta βN ∼ 1.6-2.8). The strength of the internal transport barrier is controlled. Moreover, the real-time control of Vt has been demonstrated from counter (anti-parallel to the plasma current, Ip) to co (parallel to the Ip) direction. Then the behavior of edge localized mode (ELM) is changed by controlling the Vt.
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Real-time measurement and feedback control of ion temperature profile and toroidal rotation using fast CXRS system in JT-60U
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Autor/in / Beteiligte Person: | YOSHIDA, M ; SAKAMOTO, Y ; SUEOKA, M ; KAWAMATA, Y ; OYAMA, N ; SUZUKI, T ; KAMADA, Y |
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Zeitschrift: | Fusion engineering and design, Jg. 84 (2009), Heft 12, S. 2206-2213 |
Veröffentlichung: | Amsterdam: Elsevier, 2009 |
Medientyp: | academicJournal |
Umfang: | print, 27 ref |
ISSN: | 0920-3796 (print) |
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