Improvement of control system at power supply of STB ring

A new control system for magnet power supply of the booster synchrotron (STB ring) has been developed to ensure stable operation. The main magnet power supply of STB ring is composed of a bending magnet power supply, three Quadrupole magnet power supplies together with some steering magnet power supplies. Remote control of the magnet power supplies used to be performed using CAMAC type control module units. Since this CAMAC based control system become to have some problems in reliability and serviceability, the control system has been completely renewed employing a Field Programmable Gate Array (FPGA) module on PCI eXtensions for Instrumentation (PXI). (author)