Ultra High-Speed Digital Feed-Back Control System

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  • 超高速デジタルフィードバック制御システム
  • チョウコウソク デジタルフィードバック セイギョ システム 500MHz チョウキュウ カソクキ ナイ タバンチ イチ ジツジカン セイギョ ノ ジツゲン
  • A Challenge to Real-Time Position Control of Many Bunches inside an Accelerator over 500MHz
  • 500MHz超級加速器内多バンチ位置実時間制御の実現

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Abstract

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.

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