Obliquely backscattered Thomson scattering system on the compact helical system

A Thomson scattering system with an obliquely backscattered configuration with a novel, high throughput collection system was developed and tested on a plasma confinement device, the compact helical system. It can yield the full profiles of electron temperature and density along a major radius with the spatial resolution ranging from 1.5 to 4 cm at a repetition rate of up to 250 Hz