Observation of electron temperature turbulence with a correlation electron cyclotron emission radiometer on LHD
Observation of electron temperature turbulence with a correlation electron cyclotron emission radiometer on LHD
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LHD上相关电子回旋发射辐射计观测电子温度湍流
DOI：
10.1088/1748-0221/11/01/c01072
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发表时间：
2016
影响因子：
1.3
通讯作者：
K. Takehara and T. Tokuzawa
中科院分区：
文献类型：
--
作者：
Y. Kogi;T. Higashi, N. Tamura;H. Tsuchiya;D. Kuwahara;Y. Nagayama;A. Mase;K. Takehara and T. Tokuzawa
湍流测量在等离子体约束研究中非常重要。我们开发了多通道相关电子回旋发射 (cECE) 辐射计系统，在大型螺旋装置 (LHD) 上使用现有的传统 ECE 辐射计系统 (RADH)。 RADH 接收到的信号被分离并馈送到我们的 cECE 系统，然后通过使用三个窄带 (200 MHz) 带通滤波器解析频率分量来测量三个独立径向位置的电子温度。将 cECE 系统获取的数据与 RADH 系统获取的数据进行比较。使用相干分析的 cECE 测量检测到低于 10 kHz 的类湍流信号，但 RADH 测量未检测到。我们认为这是由于两个通道之间的径向间隔长度以及每个通道的径向测量深度的差异造成的。 cECE系统能够检测更高频率的湍流，因为其径向的分离长度和测量深度比湍流的相关长度短。
Turbulence measurement is important in the study of plasma confinement. We developed a multi-channel correlation electron cyclotron emission (cECE) radiometer system, using an existing conventional ECE radiometer system (RADH) on a large helical device (LHD). The signal received by the RADH was split and fed to our cECE system, and then electron temperatures at three separate radial positions were measured by resolving frequency component with three narrow (200 MHz) band-pass filters. Data taken by the cECE system were compared with those taken by the RADH system. Turbulence-like signals below 10 kHz were detected by the cECE measurement using coherence analysis, but were not detected by RADH measurement. We considered this to be due to differences in the radial separation length between the two channels and in the radial measurement depth of each channel. The cECE system was able to detect higher frequency turbulence because its separation length and measurement depth in the radial direction was shorter than the correlation length of the turbulence.
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通过强成形 DIII-D 托卡马克等离子体中的电流和压力分布控制实现更高的聚变功率增益。
影响因子：
8.6
作者：
E. Lazarus;G. Navratil;C. Greenfield;E. Strait;M. E. Austin;K. Burrell;T. Casper;D. R. Baker;J. Deboo;E. Doyle;R. Durst;J. Ferron;C.B Forest;P. Gohil;R. Groebner;W. Heidbrink;R. ;W. Houlberg;A. Howald;C. Hsieh;A. Hyatt;G. Jackson;J. S. Kim;L. Lao;C. Lasnier;A. Leonard;J. Lohr;R. L. Haye;R. Maingi;R. L. Miller;M. Murakami;T. Osborne;L. J. Perkins;C. Petty;C. Rettig;T. Rhodes;B. Rice;S. Sabbagh;D. Schissel;J. Scoville;R. Snider;G. Staebler;B. Stallard;R. Stambaugh;H. John;R. Stockdale;P. Taylor;D. Thomas;A. Turnbull;M. Wade;R. Wood;D. Whyte
通讯作者：
D. Whyte
影响因子：
1.6
作者：
Kawahata, K;Nagayama, Y;Ito, Y
通讯作者：
Ito, Y
MHD 活动对 LHD 高β等离子体中压力分布的影响
影响因子：
2.2
作者：
S. Sakakibara;H. Yamada;K. Watanabe;Y. Narushima;K. Toi;S. Ohdachi;S. Yamamoto;K. Narihara;K. Tanaka;A. Komori;O. Kaneko
通讯作者：
O. Kaneko
铲运机新型电子回旋发射诊断天线的设计与安装
影响因子：
0.8
作者：
H. Tsuchiya;Y. Nagayama;K. Kawahata;S. Inagaki;S. Kubo
通讯作者：
S. Kubo