Angular Distributions of K-Shell Auger Electrons for Carbon, Nitrogen, Oxygen and Neon Excited by Energetic Ions

Abstract

The angular distributions of K-shell Auger electrons from carbon, nitrogen, oxygen and neon excited by protons and alpha particles at MeV energy region have been measured. In comparison with the theoretical distribution of \bara+\barb cos² θ, the results are isotropic within the experimental accuracy of 8%. For the angular distributions of K Auger electrons from nitrogen and oxygen induced by N+N²⁺ and O+N²⁺ collisions, no significant anisotropy has been observed.