A new multichannel interferometer system on HL-2A.
A new multichannel HCN interferometer has been developed on HL-2A tokamak, which is characterized by two techniques: (1) the wave-guide HCN laser with cavity length of 6 m to increase the optical resource power and (2) high response room temperature waveguide Schottky diode detectors to obtain good beat signal. The space resolution is 7 cm by the use of focusing metal mirrors mounted on the vacuum chamber and a compensated optical system. In the 2006 experiment campaign, this new interferometer has been applied for plasma density profile and density sawtooth measurement.
Zhou
Y
Y
Southwestern Institute of Physics, Chengdu 610041, China.
Deng
Z C
ZC
Liu
Z T
ZT
Yi
J
J
Tang
Y W
YW
Gao
B Y
BY
Tian
C L
CL
Li
Y G
YG
Ding
X T
XT