title: Time-of-flight electron velocity spectrometer using transverse electric field deflectors.
abstract: A time-of-flight electron velocity spectrometer using two transverse electric field deflectors as fast electronic shutters has been constructed. Square-wave voltage pulses applied to the two shutters limit the transmitted current to electrons in selected narrow velocity ranges. Analysis of the magnitude of this transmitted electron current as a function of the time delay between the two shutter openings leads to the electron velocity or energy spectrum in the incident charged particle beam. Time resolutions of 5 ns (FWHM) can be obtained with the present apparatus for electrons in the 5-100 eV range.
authors.affiliation: Department of Physics, University of Maine, Orono, Maine 04473.
authors.forename: R G
authors.initials: RG
authors.lastname: Littlefield
authors.forename: G S
authors.initials: GS
authors.lastname: Harmon