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 a
toms (excitation with simultaneous ionization). The optical excitation func
tions in the electron energy range from zero to 200 eV are registered for a
ll of the investigated transitions. The levels of sextet terms of configura
tion 4f(4)(I-5)6p are excited most effectively.