This article describes a new kind of electrostatic charged particle analyze
r capable of the parallel detection of a large kinetic energy range. The ma
in purpose envisaged is for the simultaneous detection of electrons scatter
ed from surfaces and having energies between a few tens of eV to greater th
an 2000 eV. A prototype has been constructed that approximates a hyperbolic
deflection field for the electrons entering an entrance slit. It exhibits
an energy resolution of a few eV and a collection efficiency of 0.05% of 2
pi sr. Useful Auger spectra can be acquired in a time of less than 2 s. The
significant improvement in spectrum acquisition time that this represents
offers many possibilities to further Auger and photoelectron spectroscopy.
(C) 1999 American Institute of Physics. [S0034-6748(99)02105-X].