Design and Experimental Validation of High-Resolution Single-Shot Emittance Diagnostics for Heavy-Ion Beams

A pepper-pot diagnostic device was developed to accurately and robustly retrieve particle distribution in horizontal vertical phase spaces by single-shot emittance measurements. Two masks that differ both composition manufacturing method were fabricated: one made of phosphor bronze an optical lithography process, another stainless steel (SUS) laser cutting. Scanning electron microscope measurements the two revealed former is superior terms regularity shape mask holes therefore more suitable use. new image-processing algorithm, namely cluster noise removal method, which improves resolution phase-space over traditional methods. The tested experiments with low-energy argon beams generated ECR ion source at KFE. Results show diagnostics can reliably four-dimensional a measurement.