Beam brightness and its reduction in a 1.2-MV cold field-emission transmission electron microscope.
Sign Up to like & getrecommendations! Published in 2019 at "Ultramicroscopy"
DOI: 10.1016/j.ultramic.2019.04.002
Abstract: In this paper we discuss probe properties in terms of probe currents, probe sizes, energy spread, virtual source sizes, and brightness in a 1.2-MV cold field-emission (cold FE) transmission electron microscope (TEM) equipped with a… read more here.
Keywords: cold field; brightness; field emission; electron microscope ... See more keywords
Structural and electronic optimization of ring-graphene cathodes and their field emission properties
Sign Up to like & getrecommendations! Published in 2019 at "Applied Physics Letters"
DOI: 10.1063/1.5097676
Abstract: Cold field emission sources are capable of providing highly coherent and bright electron beams. However, they suffer from some well-known practical difficulties that have prevented their widespread use: unmanageably stringent ultrahigh vacuum requirements, relatively large… read more here.
Keywords: cold field; field; cathode; field emission ... See more keywords
Monochromatic electron emission from CeB6 (310) cold field emitter
Sign Up to like & getrecommendations! Published in 2020 at "Applied Physics Letters"
DOI: 10.1063/5.0029546
Abstract: Observation at low voltage using scanning electron microscopes (SEMs) enables the characterization of surface details on specimens on a nanometer scale and is widely used in science and industry. However, the energy width of the… read more here.
Keywords: cold field; monochromatic electron; ceb6 310; electron ... See more keywords