Density and potential fluctuations in the edge plasma of the Uragan-3m torsatron

Density and potential fluctuations in the edge plasma of the Uragan-3m torsatron

Ion saturation current and floating potential fluctuations are recorded by movable array of 4 Langmuir probes near the boundary of the confinement region in the l = 3/m = 9 Uragan-3M torsatron with an RF produced and heated plasma. On the basis of these data main spectral and time characteristics...

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Datum:2002
Hauptverfasser: Sorokovoy, E.L., Chechkin, V.V., Grigor’eva, L.I., Chechkin, A.V., Gonchar, V.Yu., Volkov, E.D., Nazarov, N.I., Tsybenko, S.A., Lozin, A.V., Litvinov, A.P., Kulaga, A.Ye., Mironov, Yu.K., Romanov, V.S., Masuzaki, S., Yamazaki, K.
Format: Artikel
Sprache:English
Veröffentlicht: Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2002
Schriftenreihe:Вопросы атомной науки и техники
Schlagworte:
Magnetic confinement
Online Zugang:http://dspace.nbuv.gov.ua/handle/123456789/77816
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Zitieren:Density and potential fluctuations in the edge plasma of the Uragan-3m torsatron / E.L. Sorokovoy, V.V. Chechkin, L.I. Grigor’eva, A.V. Chechkin, V.Yu. Gonchar, E.D. Volkov, N.I. Nazarov, S.A. Tsybenko, A.V. Lozin, A.P. Litvinov, A.Ye. Kulaga, Yu.K. Mironov, V.S.Romanov, S. Masuzaki, K. Yamazaki // Вопросы атомной науки и техники. — 2002. — № 5. — С. 6-9. — Бібліогр.: 7 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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Zusammenfassung:Ion saturation current and floating potential fluctuations are recorded by movable array of 4 Langmuir probes near the boundary of the confinement region in the l = 3/m = 9 Uragan-3M torsatron with an RF produced and heated plasma. On the basis of these data main spectral and time characteristics of the low frequency electrostatic turbulence have been derived. The existence of the radial electric field shear and reversal of poloidal phase velocity of the fluctuations at the plasma boundary have been confirmed. The time function of the turbulent E×B particle flux contains intermittent bursts with the amplitude multiply exceeding the average flux. Up to 70% of the total fluctuating flux is carried in these bursts.

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