Original title: Temperature controlled cathode heating in the electron gun
Authors: Horáček, Miroslav
Document type: Papers
Conference/Event: CSEM, Vranovská Ves (CZ), 2002-02-08 / 2002-02-09
Year: 2002
Language: eng
Abstract: The paper describes how the lifetime of the directly heated tungsten cathode can be substantially extended by automatic stabilisation of its temperature measured by its luminance. Further it is shown that the end of the life (the break) of the cathode can be predicted, giving the operating personnel the chance to avoid unexpected break during the experiment.
Keywords: directly heated tungsten cathode; electron gun; temperature controlled cathode heating
Project no.: CEZ:AV0Z2065902 (CEP)
Host item entry: Proceedings of the 2nd annual meeting of the Czechoslovak microscopy society, ISBN 80-238-8749-1

Institution: Institute of Scientific Instruments AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0101097

Permalink: http://www.nusl.cz/ntk/nusl-29535


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Research > Institutes ASCR > Institute of Scientific Instruments
Conference materials > Papers