Physics
Scientific paper
Apr 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aipc..899..177t&link_type=abstract
SIXTH INTERNATIONAL CONFERENCE OF THE BALKAN PHYSICAL UNION. AIP Conference Proceedings, Volume 899, pp. 177-178 (2007).
Physics
Atomic, Molecular, And Charged-Particle Sources And Detectors
Scientific paper
A hemispherical deflector analyzer usually consists of an electrostatic input lens, two concentric hemispherical deflector plates and a channel electron multiplier. Input lens system is used to focus electron beam at the entrance of the hemispherical deflector which disperses the beam according to their energy, and a channel electron multiplier is used to detect electrons. In the present work, we investigated the energy resolution of hemispherical electron energy analyzers as a function electron energy, entrance angle of the beam, and analyzer radius both using ray-tracing and analytical method. Distributions of electrons at the exit of the analyzer were calculated for the total maximum angular divergences of 10 - 50. We expect this general approach to be of particular interest to investigators using modern HDAs.
Dogan Mehmet
Sise Omer
Tas Neslihan
Ulu Melike
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