Title :
Orbit correction implementation at CEBAF
Author :
Bickley, M. ; Bowling, B.A. ; Douglas, D. ; Hofler, A. ; Kewisch, J. ; Krafft, G.A.
Author_Institution :
Continuous Electron Beam Accel. Facility, Newport News, VA, USA
Abstract :
CEBAF has recently performed automated beam orbit control in real time. This effort was achieved by exploiting the capabilities of the TACL control system, using the newly implemented STAR network, which easily yielded the required data transfer density needed. Also involved in this effort was the On-Line Envelope code OLE, which provided first-order transfer matrices that reflected the current machine optics. These tools made the implementation of the specific orbit-correction algorithms easier and increased reliability. The implemented algorithms include beamthreading, orbit-locks with 2 correctors/2 monitors, most-effective corrector, and n-corrector/n-monitor correction
Keywords :
beam handling techniques; computerised control; electron accelerators; linear accelerators; physical instrumentation control; real-time systems; CEBAF; beamthreading; data transfer density; first-order transfer matrices; machine optics; most-effective corrector; n-corrector/n-monitor correction; orbit correction implementation; orbit-correction algorithms; orbit-locks; real time automated beam orbit control; Acceleration; Application software; Automatic control; Electron beams; Linear particle accelerator; Logic; Memory management; Particle beams; Protocols; Testing;
Conference_Titel :
Particle Accelerator Conference, 1993., Proceedings of the 1993
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-1203-1
DOI :
10.1109/PAC.1993.309168