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Development of a LaB6 based ultra-bright cold field emitter electron source

MPG-Autoren
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Singh,  G.
Miller Group, Atomically Resolved Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

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Bücker,  R.
Miller Group, Atomically Resolved Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

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Kassier,  G.
Miller Group, Atomically Resolved Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

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Miller,  R. J. D.
Miller Group, Atomically Resolved Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

Externe Ressourcen

https://dx.doi.org/10.1109/IVNC.2017.8051583
(Verlagsversion)

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Zitation

Singh, G., Bücker, R., Kassier, G., Miller, R. J. D., & Purcell, S. T. (2017). Development of a LaB6 based ultra-bright cold field emitter electron source. doi:10.1109/IVNC.2017.8051583.


Zitierlink: https://hdl.handle.net/21.11116/0000-0001-97A1-E
Zusammenfassung
We present our work on the development and characterization of a practical and robust LaB6 based cold field emitter electron source. To this end we prepared a Tantalum mounted single crystal LaB6 rod that was chemically etched, yielding an apex size of 2μm. The obtained tip is loaded into a ultra high vacuum chamber for pulsed emission in the μs regime, using extraction voltage pulsing. Further processing using focused ion beam (FIB) milling, and conditioning using a build-up technique will be used to reduce the apex size to the nm range.