Monte Carlo caluculations of electron collisions on highly excited hydrogen
K.Kawakami, A.Tanaka, T.Imaida and T.Fujimoto
Department of Engineering Physics and Mechanics, Kyoto University
We have examined cross sections for ml-changing, l-changing, and n-changing
transitions and for ionization in the semiclassical approximation. Cross
section values are compared with the semiempirical formulas.  Excitation
cross sections continue smoothly to the "ionization cross section".  For
ionization the relative angle of the two outgoing electrons is larger than
90 degrees.