Plasma potential fluctuations and large quasi-coherent modes observed by a heavy ion beam probe on the JIPP T-IIU tokamak

Y. Hamada; A. Nishizawa; Y. Kawasumi; A. Fujisawa; H. Iguchi

doi:10.1016/s0920-3796(96)00559-5

Plasma potential fluctuations and large quasi-coherent modes observed by a heavy ion beam probe on the JIPP T-IIU tokamak

Y. Hamada, A. Nishizawa, Y. Kawasumi, A. Fujisawa, H. Iguchi

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22 Citations (Scopus)

Abstract

We observed, in the signals of the plasma potential fluctuation, large-scale oscillations of large energy change in the secondary beam of an HIBP on the JIPP T-11U tokamak. The frequency is around 10-40 kHz and the amplitude is 10-100 V. It is also found that the coherence of the energy change and the toroidal deflection is very high (0.6), implying that they are caused by the magnetic oscillations. In spite of the oscillations, we obtained stable values for the correlation between the density and local electric field, which are proportional to the turbulence-driven particle flux.

Original language	English
Pages (from-to)	663-666
Number of pages	4
Journal	Fusion Engineering and Design
Volume	34-35
DOIs	https://doi.org/10.1016/s0920-3796(96)00559-5
Publication status	Published - Mar 1997
Externally published	Yes

All Science Journal Classification (ASJC) codes

Civil and Structural Engineering
Nuclear Energy and Engineering
Materials Science(all)
Mechanical Engineering

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10.1016/s0920-3796(96)00559-5

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title = "Plasma potential fluctuations and large quasi-coherent modes observed by a heavy ion beam probe on the JIPP T-IIU tokamak",

abstract = "We observed, in the signals of the plasma potential fluctuation, large-scale oscillations of large energy change in the secondary beam of an HIBP on the JIPP T-11U tokamak. The frequency is around 10-40 kHz and the amplitude is 10-100 V. It is also found that the coherence of the energy change and the toroidal deflection is very high (0.6), implying that they are caused by the magnetic oscillations. In spite of the oscillations, we obtained stable values for the correlation between the density and local electric field, which are proportional to the turbulence-driven particle flux.",

author = "Y. Hamada and A. Nishizawa and Y. Kawasumi and A. Fujisawa and H. Iguchi",

year = "1997",

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doi = "10.1016/s0920-3796(96)00559-5",

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journal = "Fusion Engineering and Design",

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T1 - Plasma potential fluctuations and large quasi-coherent modes observed by a heavy ion beam probe on the JIPP T-IIU tokamak

AU - Hamada, Y.

AU - Nishizawa, A.

AU - Kawasumi, Y.

AU - Fujisawa, A.

AU - Iguchi, H.

PY - 1997/3

Y1 - 1997/3

N2 - We observed, in the signals of the plasma potential fluctuation, large-scale oscillations of large energy change in the secondary beam of an HIBP on the JIPP T-11U tokamak. The frequency is around 10-40 kHz and the amplitude is 10-100 V. It is also found that the coherence of the energy change and the toroidal deflection is very high (0.6), implying that they are caused by the magnetic oscillations. In spite of the oscillations, we obtained stable values for the correlation between the density and local electric field, which are proportional to the turbulence-driven particle flux.

AB - We observed, in the signals of the plasma potential fluctuation, large-scale oscillations of large energy change in the secondary beam of an HIBP on the JIPP T-11U tokamak. The frequency is around 10-40 kHz and the amplitude is 10-100 V. It is also found that the coherence of the energy change and the toroidal deflection is very high (0.6), implying that they are caused by the magnetic oscillations. In spite of the oscillations, we obtained stable values for the correlation between the density and local electric field, which are proportional to the turbulence-driven particle flux.

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U2 - 10.1016/s0920-3796(96)00559-5

DO - 10.1016/s0920-3796(96)00559-5

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AN - SCOPUS:8644273730

SN - 0920-3796

VL - 34-35

SP - 663

EP - 666

JO - Fusion Engineering and Design

JF - Fusion Engineering and Design

ER -

Plasma potential fluctuations and large quasi-coherent modes observed by a heavy ion beam probe on the JIPP T-IIU tokamak

Abstract

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