Time-of-flight Identification of Ions in CESR and ERL

The accumulation of ion densities in the beam pipe of an electron beam accelerator can disturb the beam’s dynamics. Efforts to clear this ion cloud from the beam pipe rely on assumptions about its composition, and this work concerns the construction of a detector to determine the concentration of different ion species and charge states in the CESR and ERL beam pipes. This report describes the detector’s assembly and its test with a low energy electron beam.