Electro-optic sampling beam position monitor for relativistic electron beams

• DOI: 10.1016/j.nima.2021.165210
• Publication Date: 2021-03-07T05:21:53Z
• Authors: Keenan Hunt-Stone; Robert Ariniello; Christopher Doss; Valentina Lee; Mike Litos
• Keywords: 0103 physical sciences; 01 natural sciences; 7. Clean energy

Abstract An electro-optic sampling beam position monitor for installation at the SLAC National Accelerator Laboratory FACET-II facility is described. Simulations of the detector signal were performed using realistic electron beam current profiles, demonstrating that this single-shot, non-destructive, compact detector is capable of resolving the relative transverse offset and longitudinal separation of an ultra-relativistic, two-bunch electron beam to order 1 μ m and 10 fs, respectively. A design study was performed to optimize the detector’s response to the ultra-relativistic two-bunch electron beam utilized in plasma wakefield accelerator experiments. In addition, the expected sensitivity to beam tilt is studied for typical electron beams used in free electron lasers .