Reliable Triggered Remote Serial I/O System for High Repetition Rate Accelerators with Pulse-to-Pulse Fast Feedback

50148-98-I Reliable Triggered Remote Serial I/O System for High Repetition Rate Accelerators with Pulse-to-Pulse Fast Feedback--NYCB Real-Time Computing, Inc., 18 Meudon Drive, Lattingtown, NY 11560-1025; (516) 759-0707 Dr. Eric J. Siskind, Principal Investigator Dr. Eric J. Siskind, Business Official DOE Grant No. DE-FG02-98ER82628 Amount: $75,000 Maintaining minimal real-time latency for the acquisition and distribution of the significant data volume required by pulse-to-pulse feedback loops in a high rate linear collider presents serious challenges. The problem is made more difficult when long distances make maintaining complicated remote computers impractical and increase signal propagation delays for non-local communications. This project will utilize intelligent input-output (I/O) boards for personal computers in a central computing room communicating via single mode fiber optics with highly reliable remote serial I/O ports with embedded user code triggered by beam timing signals. The system will be designed for minimum remote hardware/software complexity and optimized for minimum real-time latency at every point. Phase I will identify and/or design the necessary fiber optic link protocols and the processor/real-time executive firmware combination required for the remote I/O ports. Preliminary design of the personal computer I/O board and a remote I/O port suitable for use in a test bed at the Stanford Linear Collider will be performed. Commercial Applications and Other Benefits as described by the awardee: The system is designed to increase the reliability, improve the maintainability, and increase the software development efficiency of the next generation electron-positron linear collider._