Kai Zhang
(Southwestern Institute of Physics)
Dianlin Zheng
(Southwestern Institute of Physics)
Ping Sun
(Southwestern Institute of Physics)
Zhengying Cui
(Southwestern Institute of Physics)
Chunfeng Dong
(Southwestern Institute of Physics)
Ping Lu
(Southwestern Institute of Physics)
Bingzhong Fu
(Southwestern Institute of Physics)
Zetian Liu
(Southwestern Institute of Physics)
Zhongbing Shi
(Southwestern Institute of Physics)
Qingwei Yang
(Southwestern Institute of Physics)
A 20cm normal incidence vacuum ultraviolet (VUV) monochromator with fast time response has been developed for measuring edge impurity line emissions in the wavelength range of 300-2000Å on HL-2A tokamak. A 1200 grooves/mm concave holographic grating is adopted to the monochromator with wavelength dispersion of 4nm/mm. The effective aperture of the monochromator is f/4.5. A CEM is used as a detector and an excellent time resolution of 17µs is realized in its first performance. Wavelength calibration of the system has been done by using a hollow cathode light source with helium and argon gas in the laboratory. High S/N signals have been obtained by significantly reducing the stray light with blackened the inner surface of the vacuum chamber of the monochromator. Preliminary results by measuring the line emissions from HL-2A plasmas have been presented.
Kai Zhang
(Southwestern Institute of Physics)
Dianlin Zheng
(Southwestern Institute of Physics)
Ping Sun
(Southwestern Institute of Physics)
Zhengying Cui
(Southwestern Institute of Physics)
Chunfeng Dong
(Southwestern Institute of Physics)
Ping Lu
(Southwestern Institute of Physics)
Bingzhong Fu
(Southwestern Institute of Physics)
Zetian Liu
(Southwestern Institute of Physics)
Zhongbing Shi
(Southwestern Institute of Physics)
Qingwei Yang
(Southwestern Institute of Physics)
There are no materials yet.
