Abstract:
The method of extended crossing beams is used to investigate the excitation of transitions between the levels of a singly charged neodymium ion, which are excited as a result of single collisions of electrons with neodymium atoms (excitation with simultaneous ionization). The optical excitation functions in the electron energy range from zero to $200$ eV are registered for all of the investigated transitions. The levels of sextet terms of configuration $4f^4(^5I)6p$ are excited most effectively.