超高速デジタルフィードバック制御システム-500MHz超級加速器内多バンチ位置実時間制御の実現 Ultra High-Speed Digital Feed-Back Control Sytem-A Challenge to Real-Time Position Control of Many Bunches inside an Accelerator over 500MHz
This paper proposes a method of ultra high-speed digital measurement and feedback control for treatment of the phenomenon that is moving or changing at near velocity of light. This method contains several important technologies for real-time processing and operations, those of high-speed random access control for memory system, high-speed parallel processing, high-speed input / output with high stability, means for keeping accuracy of the absolute time for control-interval and input/output timing, and so on. As one of the applications of ultra high-speed digital feed-back system, we tried to apply our method to the feed-back control system to control many bunches with large amount of electrons and positrons turning at near velocity of light in the inside of a colliding type accelerator consisting of two rings, one for electrons and one for positrons, crossing each other, and attempted a development of prototype system for said application and several kind of experiments to evaluate its performances. From results of the attempts, a prospect of realizing the application and a recognition of availabilities of our method have been obtained.
システム制御情報学会論文誌 12(12), 711-724, 1999-12-15