Ghosts and satellites measured with the LHC LDM

Accurate calibration of the LHC luminosity depends on knowledge of the size and distribution of ghost and satellite bunches. The very high dynamic range and high time resolution of the Longitudinal Density Monitor (LDM) allows satellites and ghosts to be clearly identified and quantified. A short summary of the LDM design is given here, along with a discussion of how the ghost and satellite proportions are extracted from the LDM profiles.