Charged particle spectra of palladium thin films during low energy deuterium ion implantation

Research was initiated to realize cold fusion in thin palladium films under low energy bombardment with high currents of deuterium ions in a vacuum chamber. The films were deposited by sputtering onto smooth silicon substrates and were bombarded with deuterium ions at an energy of 1.5 kev with a current density of about 0.5 mA/cm super(2). Several counts were noted to occur in the high energy region of the spectra which did not appear during an extended background spectrum, but the source of these counts is unclear at this time.