The Development of the LLRF Control System for the New High Power Test Stand of Couplers

The procedure of room-temperature high power test or condition for couplers is very import, which can hardly be circumvented before they are assembled on the accelerating cavities [1]. A new high-power test stand of fundamental mode power coupler is under development at IMP. The design, assembly and test of the RF control system has been finished up to date. This paper introduces the major functions of the LLRF control system. The test results of the arc interlock, RF test and the test of the system as a whole have been present.