Author/Authors :
Zhuang، نويسنده , , Ge and Liu، نويسنده , , Wandong and Yu، نويسنده , , Changxuan and Lai، نويسنده , , Tianshu and Zhai، نويسنده , , Kan-Min Wang، نويسنده , , Cheng and Wen، نويسنده , , Yizhi and Wang، نويسنده , , Chao، نويسنده ,
Abstract :
A CO2 laser phase contrast imaging system has been developed for tokamak KT-5C. The system properties have been explored using a step phase modulator. It has been found that by setting the focus of an undiffracted beam outside the groove of the phase plate, a single-point detection system can still be used to measure fluctuations with resolution of wavenumber.
