Ma. Piestrup et al., MEASUREMENT OF MULTIPLE-ELECTRON EMISSION IN SINGLE FIELD-EMISSION EVENTS, Journal of applied physics, 82(11), 1997, pp. 5862-5864
Thermal and field electron emission from a modified electron microscop
e W source were measured with an energy-dispersive counting system. Th
ermal-emission spectra were consistent with random emission of single
electrons, while field-emission spectra were consistent with multiple-
electron emission in random events. As many as 11 electrons were detec
ted in isolated random field-emission events. (C) 1997 American Instit
ute of Physics.