2017/12/27 by A.H. Lumpkin, R. Thurman-Keup, Lumpkin, A. H. +7
Engineering · Physics and Astronomy · #Accelerator Physics (physics.acc-ph) #FOS: Physical sciences #Particle Accelerators and Free-Electron Lasers #Particle Detector Development and Performance #Particle accelerators and beam dynamics
paper · pdf · doi:10.48550/arxiv.1712.09616
openalex publication_date 2017/12/27 · openalex created_date 2019/07/30 · openalex updated_date 2026/07/28
Commissioning at the SCRF accelerator at the Fermilab Accelerator Science and\nTechnology (FAST) Facility has included the implementation of a versatile\nbunch-length monitor located after the 4-dipole chicane bunch compressor for\nelectron beam energies of 20-50 MeV and integrated charges in excess of 10 nC.\nThe team has initially used a Hamamatsu C5680 synchroscan streak camera to\nassess the effects of space charge on the electron beam bunch lengths. An\nAl-coated Si screen was used to generate optical transition radiation (OTR)\nresulting from the beam's interaction with the screen. The chicane bypass\nbeamline allowed the measurements of the bunch length without the compression\nstage at the downstream beamline location using OTR and the streak camera. We\nhave observed electron beam bunch lengths from 5 to 16 ps (sigma) for\nmicropulse charges of 60 pC to 800 pC, respectively. We also report a\ncompressed sub-ps micropulse case.\n