Metastable X-Ray Emitters Produced in Beam-Foil Excitation of Fast Chlorine Beams

Abstract
Metastable x-ray-emitting chlorine ions with lifetimes in the nanosecond region have been found to be produced in the beam-foil excitation of fast chlorine beams. Using coincidence techniques we have determined that these metastable states belong to chlorine ions of two, three, and more than three electrons.