Femtosecond electron bunches, source and characterization

A femtosecond electron source has been developed at the Fast Neutron Research Facility (FNRF), Chiang Mai University, Thailand. So far, it has produced electron bunches as short as σz∼180 fs with (1-6)×108electrons per microbunch. The system consists of an RF-gun with a thermionic cathode, an alpha-...

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Bibliographic Details
Main Authors: C. Thongbai, K. Kusoljariyakul, S. Rimjaem, M. W. Rhodes, J. Saisut, P. Thamboon, P. Wichaisirimongkol, T. Vilaithong
Format: Journal
Published: 2018
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Online Access:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=39749195514&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/60741
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Institution: Chiang Mai University
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Summary:A femtosecond electron source has been developed at the Fast Neutron Research Facility (FNRF), Chiang Mai University, Thailand. So far, it has produced electron bunches as short as σz∼180 fs with (1-6)×108electrons per microbunch. The system consists of an RF-gun with a thermionic cathode, an alpha-magnet as a magnetic bunch compressor, and a linear accelerator as a post acceleration section. Coherent transition radiation emitted at wavelengths equal to and longer than the bunch length is used in a Michelson interferometer to determine the bunch length by autocorrelation technique. The experimental setup and results of the bunch length measurement are described. © 2007 Elsevier B.V. All rights reserved.