10 channel grating polychromator for the measurements of electron cyclotron emission

被引：0

作者：

Kawahata, Kazuo ^{[1
]}

Sakai, Kiyomi ^{[1
]}

Ando, Ritoku ^{[1
]}

Ohara, Sinji ^{[1
]}

Fujita, Junji ^{[1
]}

机构：

[1] Nagoya Univ, Japan

来源：

Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers | 1988年 / 27卷 / 12期

关键词：

Magnetohydrodynamics - Tokamak Devices;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A 10-channel grating polychromator has been developed and applied for the measurement of the second harmonic electron cyclotron emission from the JIPP T-IIU tokamak plasma. The frequency resolution measured at 150 GHz is about 3 GHz which corresponds to the spatial resolution of 1.8 cm near the center of the plasma column. The grating efficiency is about 80% for S-polarization around 160 GHz. Its excellent time resolution, Δt&le2 μs, is favorable for studying MHD activities in hot plasmas. It has been found from the measurements in JIPP T-IIU that the grating polychromator is a powerful diagnostic tool for the measurements of electron temperature of the plasma.

引用

页码：2349 / 2355