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Title: Bunch compression efficiency of the femtosecond electron source at Chiang Mai University
Authors: C. Thongbai
K. Kusoljariyakul
J. Saisut
Keywords: Physics and Astronomy
Issue Date: 21-Jul-2011
Abstract: A femtosecond electron source has been developed at the Plasma and Beam Physics Research Facility (PBP), Chiang Mai University (CMU), Thailand. Ultra-short electron bunches can be produced with a bunch compression system consisting of a thermionic cathode RF-gun, an alpha-magnet as a magnetic bunch compressor, and a linear accelerator as a post acceleration section. To obtain effective bunch compression, it is crucial to provide a proper longitudinal phase-space distribution at the gun exit matched to the subsequent beam transport system. Via beam dynamics calculations and experiments, we investigate the bunch compression efficiency for various RF-gun fields. The particle distribution at the RF-gun exit will be tracked numerically through the alpha-magnet and beam transport. Details of the study and results leading to an optimum condition for our system will be presented. © 2010 Elsevier B.V. Allrights reserved.
ISSN: 01689002
Appears in Collections:CMUL: Journal Articles

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