Measurement of electrostatic potential fluctuation using heavy ion beam probe in large helical device.
Measurement of electrostatic potential fluctuation using heavy ion beam probe in large helical device.
复制标题
利用重离子束探针测量大型螺旋装置中的静电电位波动。
DOI：
10.1063/1.2971207
复制
发表时间：
2008
期刊：
影响因子：
--
通讯作者：
F. Watanabe
中科院分区：
文献类型：
--
作者：
T. Ido;A. Shimizu;M. Nishiura;H. Nakano;S. Ohshima;S. Kato;Y. Hamada;Y. Yoshimura;S. Kubo;T. Shimozuma;H. Igami;H. Takahashi;K. Toi;F. Watanabe
用于大型螺旋装置 (LHD) 的重离子束探头 (HIBP) 已得到改进，可测量高温等离子体中的电势波动。通过控制探测光束的焦点，空间分辨率提高到约10毫米。 HIBP 用于测量等离子体中的电势波动，其中旋转变换由电子回旋电流驱动控制。观察到频率随几百毫秒时间常数变化的波动和频率恒定的波动。后者波动的特征与测地线声模振荡的特征相似。还获得了波动的空间分布。
Heavy ion beam probe (HIBP) for large helical device (LHD) has been improved to measure the potential fluctuation in high-temperature plasmas. The spatial resolution is improved to about 10 mm by controlling the focus of a probe beam. The HIBP is applied to measure the potential fluctuation in plasmas where the rotational transform is controlled by electron cyclotron current drive. The fluctuations whose frequencies change with the time constant of a few hundreds of milliseconds and that with a constant frequency are observed. The characteristics of the latter fluctuation are similar to those of the geodesic acoustic mode oscillation. The spatial profiles of the fluctuations are also obtained.
DOI：
--
发表时间：
2006
期刊：
Review of Scientific Instruments 77-03A
影响因子：
--
作者：
M.Nishiura;M.Wada;et. al.
通讯作者：
et. al.
GAM 理论向螺旋系统的扩展
DOI：
--
发表时间：
2005
期刊：
Phys.Plasmas Vol.12, No.6
影响因子：
--
作者：
T.Watari;H.Hamada;A.Fujisawa;K.Toi;K.Itoh
通讯作者：
K.Itoh