Publication Date

2018

Document Type

Dissertation/Thesis

First Advisor

Piot, Philippe

Degree Name

Ph.D. (Doctor of Philosophy)

Legacy Department

Department of Physics

LCSH

Physics

Abstract

Transverse and longitudinal electron beam shaping is a crucial part of high-brightness electron accelerator operations. In this dissertation, we report on the corresponding beam dy- namics research conducted at Fermilab Accelerator Science and Technology facility (FAST) and Argonne Wakefield Accelerator (AWA). We demonstrate an experimental method for spatial laser and electron beam shaping using microlens arrays (MLAs) at a photoinjector facility. Such a setup was built at AWA and resulted in transverse emittance reduction by a factor of 2. We present transverse emittance partitioning methods that were recently employed at FAST facility. A strongly coupled electron beam was generated in an axial magnetic field and accelerated in 1.3 GHz SRF cavities to 34 MeV. It was then decoupled in Round-To-Flat beam transformer and beams with emittance asymmetry ratio of 100 were generated. We introduce the new methods of measuring electron beam canonical angular momentum, beam transformer optimization and beam image analysis. We also describe a potential longitudinal space-charge amplifier setup for FAST high-energy beamline. As an outcome, a broadband partially coherent radiation in the UV range could be generated.

Comments

Advisors: Philippe Piot.||Committee members: Stephen Martin; Michael J. Syphers.||Includes illustrations.||Includes bibliographical references.

Extent

140 pages

Language

eng

Publisher

Northern Illinois University

Rights Statement

In Copyright

Rights Statement 2

NIU theses are protected by copyright. They may be viewed from Huskie Commons for any purpose, but reproduction or distribution in any format is prohibited without the written permission of the authors.

Media Type

Text

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