Gamma Ray Detection and Surface Analysis on Palladium Electrode in DC Glow-like Discharge Experiment

We performed glow-like discharge experiments using deuterated palladium cathode in deuterium atmosphere to investigate the possibility of inducing low-energy nuclear reaction. Anomalous gamma ray emissions in the 80 230keV region were sometimes observed. It was assumed that a nuclear reaction took place during the experiment, producing short-lived radioisotopes, and these radioisotopes emitted the gamma rays in their decay processes. Elements and their isotopic abundance on the palladium cathodes were investigated by time-of-flight secondary ion mass spectrometry to find evidence of a nuclear reaction.