A FLUOR AND WIRE-SHADOW DIAGNOSTIC FOR LOW-ENERGY ION BEAMS·

A video diagnostic technique utilizing a fluorescent screen and a video camera has been developed to monitor the two-dimensional beam-intensity profile and angular divergence of low-energy (25--35 keV) ion beams. Detailed off-line analysis is used to compare and augment standard beam emittance data. Experimental results on 2-D beam profiles will be presented.