Nd:YAG laser control for Thomson scattering diagnostic in SST-1

The paper describes a design of a laser control electronics module to operate the Thomson Scattering diagnostic in synchronization with the distributed control system in SST-1 Tokamak. The module is based on microcontroller that makes the design relatively simple and cost effective. The control electronics module operates flash lamp in continuos mode. During the plasma duration, the module generates a finite number of the laser pulse with programmable delay interval. The module also sends the status signal to the other control sub-system of the Thomson scattering diagnostic. Due to use of controller, the module can be controlled by a PC computer and used in automated application. (author)