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Estimating Time Dependence of Edge Plasma Turbulence in IR-T1 Tokamak

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Abstract

Time dependence of edge plasma turbulence was investigated in the IR-T1 tokamak. Time dependence of fluctuation level and spectra were measured using Langmuir probe in the region r/a = 0.8–1. In all times of typical shot, the edge plasma was turbulently unstable, with a broad band fluctuation spectrum in the range of frequencies f = 10–1000 kHz. The relative fluctuation level as monitored by the ion saturation current J+ was very high, in the range ≅0.1–0.6 all over the time, while the fluctuation power spectra were roughly invariant in shape.

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Authors and Affiliations

  1. Plasma Physics Research Center, Science and Research Branch, Islamic Azad University, Tehran, Iran

    K. Mikaili Agah, M. Ghoranneviss, M. K. Salem, A. Salar Elahi, S. Mohammadi & R. Arvin

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  1. K. Mikaili Agah
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  2. M. Ghoranneviss
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  3. M. K. Salem
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Mikaili Agah, K., Ghoranneviss, M., Salem, M.K. et al. Estimating Time Dependence of Edge Plasma Turbulence in IR-T1 Tokamak. J Fusion Energ 32, 268–272 (2013). https://doi.org/10.1007/s10894-012-9563-z

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