Plasma potential fluctuations and large quasi-coherent modes observed by a heavy ion beam probe on the JIPP T-IIU tokamak
Plasma potential fluctuations and large quasi-coherent modes observed by a heavy ion beam probe on the JIPP T-IIU tokamak
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JIPP T-IIU 托卡马克重离子束探针观测到的等离子体电势波动和大准相干模式
DOI：
10.1016/s0920-3796(96)00559-5
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发表时间：
1997
影响因子：
1.7
通讯作者：
H. Iguchi
中科院分区：
文献类型：
--
作者：
Y. Haniada;A. Nishizawa;Y. Kawasumi;A. Fujisawa;H. Iguchi
在JIPP T-IIU托卡马克上的HIBP次级束流中，我们观察到等离子体势涨落信号中能量变化较大的大尺度振荡。频率约为10-40 kHz，振幅为10-100 V。还发现能量变化和环向偏转的相干性非常高（0.6），这意味着它们是由磁振荡引起的。尽管振荡，我们得到了稳定的值之间的相关性的密度和局部电场，这是成比例的连续性驱动的粒子通量。
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-IIU 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.