Data acquisition system of load side for powerful ion source

Powerful ion source is the critical part of neutral beam injection. The state operations of such critical parts as filament and arc in ion source are important for parameter setting and fault judgment. In order to monitor the state operations of filament and arc, the data acquisition system of load side for powerful ion source has been designed. The technology of voltage-to-frequency that is used in this system achieves the function of isolated transmission. The sampling signals are dynamically displayed by PXI system and Labview. The experiment results show that the system achieves the dynamical monitoring of filament and arc in ion source,which is in the injection modules of DC and modulation. (authors)