Sep 24 – 30, 2017
La Biodola, Isola d'Elba
Europe/Rome timezone

Characterization of Field-Emission from Silicon Nano Cathodes

Sep 27, 2017, 7:30 PM
Parking Area, Hotel Hermitage

Parking Area, Hotel Hermitage

poster WG7 - High Brightness Power Sources: from Laser Technology to Beam Drivers Wine and Poster Session 2 (WG4-WG5-WG6-WG7)


Mr Osama Mohsen (Northern Illinios University)


Field emission cathodes are capable of providing electron beams with appealing brightness required for, e.g. the development of compact accelerator-based light sources to serve as injector for high-gradient accelerating structures (e.g. dielectric laser accelerators). A collaboration between Northern Illinois University and the Argonne Center for Nanoscale Materials, has recently developed field-emission cathodes consisting of arrays of nanocones. This paper discusses the recent results to test these cathodes using a DC gun. We will especially present the the measured I −V characteristic curves and transverse beam distributions of the emitted electron beams and compare our results with numerical simulations.

Primary author

Mr Osama Mohsen (Northern Illinios University)


Anusorn Lueangaramwong (Northern Illinois University) Prof. Philippe Piot (Northern Illinois University and Fermi National Labratory) Dr Ralu Divan (Aragonne National Laboratory) Prof. Swapan Chattopadhyay (Northern Illinois University) Dr Venumadhav Korampally (Northern Illinois University)

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