Speaker
Mr
Osama Mohsen
(Northern Illinios University)
Description
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)
Co-authors
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)
