  We present angle resolved photoemission spectra for Cu(100) and Cu(111)
singly crystals in normal emission geometry, taken at tightly spaced intervals
for photon energies between 8 eV and 150 eV. This systematic collection of
spectra gives unprecedented insight into the influence of the final states to
the photoemission process as well as the band structure and lifetimes of highly
excited electrons in Cu.
