title: Analyses of ions and electrons resulting from Penning ionization.
mesh_terms: D001128:Argon; D001464:Barium; D004583:Electrons; D004735:Energy Transfer; D006371:Helium; D006859:Hydrogen; D007477:Ions; D008628:Mercury; D009356:Neon
chemical_list: D007477:Ions; D006371:Helium; D001464:Barium; D009356:Neon; D001128:Argon; D006859:Hydrogen; D008628:Mercury