Development of a Thomson Scattering Diagnostic System on EAST

A multipulse and multipoint Nd:YAG （neodymium-yttrium aluminum garnet） laserThomson scattering diagnostic system was developed on EAST to obtain more accurate electrontemperature T e and electron density n e profiles. In this paper, the optical system, the VME （versamodule eurocard）-based real-time computer system for laser control, data acquisition, analysis andcalibration are discussed in detail. Furthermore, a developed data processing method is presented.