Emission optics of the Steigerwald-type electron gun
نویسندگان
چکیده
منابع مشابه
1 2 M ay 1 99 9 Emission Optics of the Steigerwald Type Electron
The emission optics of a Steigerwald type electron gun is re-examined. The virtual and real points of divergence, divergence angles and beam-widths of the electron beams at different telefocusing strength are measured in detail for first time . Two different Wehnelt cylinders are used to establish a contrasting viewpoint. The original ‘focusing’ curves measured by Braucks are reconstructed and ...
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ژورنال
عنوان ژورنال: Review of Scientific Instruments
سال: 1999
ISSN: 0034-6748,1089-7623
DOI: 10.1063/1.1150053