Beam Synchrotron Radiation for the Longitudinal Density Monitor (BSRL) Error Analysis Report

The Beam Synchrotron Radiation Longitudinal Density Monitor (BSRL) at the LHC leverages time-correlated single-photon counting to provide high-dynamic-range measurements of particle populations within each bunch in the LHC including monitoring of “ghost” and “satellite” bunches, which represent charge captured in nominally empty buckets, thereby enhancing the accuracy of luminosity calibration. As measurements from the BSRL are used in luminosity calibration it is vital that errors in its measurement are quantified and minimised where possible.