A novel method of TVTS in the TS-3 device and the proposal of its application to a large device

A novel method of Television Thomson Scattering (TVTS) has been developed in the TS-3 device. In this system, a framing camera is located between a spectroscope and a close coupled device camera. This framing camera can take two successive frames from the exit of the spectroscope. The time interval is of 500 ns between those two frames. Because of the shortness of this time interval, the background light is negligible; moreover TVTS is applicable to the TS-3 device whose plasma lifetime is about 150 gs. This method indicates the possibility of not only high spatial resolution but also time repetition in a simple system.