Survey and analysis of line-frequency interference in the CEBAF accelerator | Zendy

M.G. Tiefenback | Zendy; Rui Li | Zendy

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Survey and analysis of line-frequency interference in the CEBAF accelerator

Author(s) -

M.G. Tiefenback,

Rui Li

Publication year - 1995

Language(s) - English

Resource type - Reports

DOI - 10.2172/377504

Subject(s) - feedthrough , physics , oscilloscope , interference (communication) , line (geometry) , linear particle accelerator , beam (structure) , particle accelerator , beamline , interaction point , optics , power (physics) , energy (signal processing) , channel (broadcasting) , electrical engineering , detector , engineering , optoelectronics , geometry , mathematics , quantum mechanics

Feedthrough of interference from the AC power line into accelerator components is a problem which in pulsed accelerators can be reduced by operation synchronous with the AC line. This means of avoiding line-frequency effects is ineffective for continuous wave machines such as the CEBAF accelerator. We have measured line-frequency perturbations at CEBAF both in beam position and energy by using the beam position monitor system as a multiple-channel sampling oscilloscope. Comparing these data against the measured static optics (taken synchronously with the AC line) we have been able to identify point sources of interference, and resolve line-synchronous variations in the beam energy at a level near 0.001%. 3 refs., 2 figs., 1 tab

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