Data exchange system in cooler-storage-ring virtual accelerator

The data exchange system of the cooler-storage-ring(CSR) control system for heavy ion radiotherapy has been introduced for the heavy ion CSR at Lanzhou(HIRFL-CSR). Using etchniques of Java, component object model(COM), Oracle, DSP and FPGA, this system can achieve real-time control of magnet power supplies simultanceously, and control beams and their switching in 256 energy levels. It has been used in the commissioning of slow extraction for the main CSR(CSRm), showing stable and reliable performance.