Design of fast response Doppler spectroscopy system for HUST field-reversed configuration device.

A fast response Doppler spectroscopy system with high throughput and high resolution is under development for studying the drifting velocity, rotation velocity, and ion temperature on the HUST field-reversed configuration (HFRC) device. The system has been designed to observe the spectral line of oxygen V (O V) ion emission at 278.1 nm (1s2s3p → 1s2s3s) over the lifetime (∼0.