Atomic Beam Source for the Energy Range of 0.2–45 eV

Abstract

An apparatus has been developed for producing an atomic beam of potassium in the energy range of 0.2 to 45 eV (1000–15 000 m/sec). The technique used here is cathode sputtering. With a velocity selector (spread, 6.7%; maximum rotational speed, 48 000 rpm), both the signal of a Pt-W detector and an energy independent one are measured as a function of the velocity of the beam particles.