2017/03/26 by S. Di Carlo, Di Carlo, Salvatore, Fabrizio Messina +1
Biochemistry, Genetics and Molecular Biology · Engineering · #Accelerator Physics (physics.acc-ph) #Advanced Fluorescence Microscopy Techniques #FOS: Physical sciences #Instrumentation and Detectors (physics.ins-det) #Nonlinear Optical Materials Studies #Optical Coherence Tomography Applications
paper · pdf · doi:10.48550/arxiv.1703.08760
openalex publication_date 2017/03/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The analysis of beamstrahlung radiation, emitted from a beam of charged particles due to the electromagnetic interaction with a second beam of charged particles, provides a diagnostic tool that can be used to monitor beam-beam collisions in a e+e- storage ring. In this paper we show that the beamstrahlung time profile is related to the timing of the collisions and the length of the beams, and how its measurement can be used to monitor and optimize collisions at the interaction point of the SuperKEKB collider. To measure the time dependence of beamstrahlung, we describe a method based on nonlinear frequency mixing in a nonlinear crystal of beamstrahlung radiation with photons from a pulsed laser. We demonstrate that the method allows to measure and optimize the relative timing and length of the colliding bunches with 1% accuracy.