W. Soszka, ION-INDUCED ELECTRON-EMISSION FROM A COLD (40-K) NICKEL TARGET, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 78(1-4), 1993, pp. 260-262
The energy spectra of secondary electrons emitted in the wide region o
f exit angles delta' (from delta' = 0.8-degrees up to delta' = 90-degr
ees) were examined for the cold (40 K) (100) nickel target bombarded w
ith 5 keV Ne' ions. The electron energy spectrum shows some structure
which strongly shifts to the side of low energy while delta increases.
This shift can exceed the work function for the nickel. Such result s
uggests that the angular distribution of generated electrons should be
anisotropic, and it is possible under assumption that the electron cr
eation takes place on the target surface.