dc.creator | Jarvis, Jonathan Daniel | |
dc.date.accessioned | 2020-08-21T21:07:43Z | |
dc.date.available | 2011-03-12 | |
dc.date.issued | 2009-03-12 | |
dc.identifier.uri | https://etd.library.vanderbilt.edu/etd-03112009-161102 | |
dc.identifier.uri | http://hdl.handle.net/1803/10726 | |
dc.description.abstract | The primary purpose of this thesis is to detail recent progress in the development of high-brightness cathodes for use in beam driven radiation sources. In particular, diamond field-emitter arrays (DFEA) are discussed and their application to conventional free-electron lasers is considered. Topics covered include the successful development of self-limiting uniformity conditioning techniques, measurement and simulation of transverse emittance, and measurement of the emitted electron energy spectrum. DFEAs have demonstrated their rugged nature by providing high per-tip currents, excellent temporal stability, and significant resistance to back-bombardment damage during poor vacuum, close-diode DC operation. Electron gun integration strategies for both gated and ungated
devices are discussed. The Smith-Purcell free-electron laser (SPFEL), a compact terahertz device, is also considered as an application of DFEA technology. The SPFEL is covered in extensive theoretical detail, including two-dimensional, three-dimensional, and three-dimensional confined-mode variations. This theory is used to guide the design of a DFEA driven SPFEL. Experimental configurations for both tabletop and handheld SPFELs are suggested. Additionally, the concept of quantum degeneracy in an electron beam is reviewed and the experimental configuration for a carbon nanotube based quantum-degenerate electron beam source is suggested. | |
dc.format.mimetype | application/pdf | |
dc.subject | DFEA | |
dc.subject | FEA | |
dc.subject | diamond field-emitter array | |
dc.subject | free-electron laser | |
dc.subject | electron source | |
dc.subject | high-brightness | |
dc.title | Development of High-Brightness Electron Sources for Free-Electron Lasers | |
dc.type | dissertation | |
dc.contributor.committeeMember | Jimmy L. Davidson | |
dc.contributor.committeeMember | M. Shane Hutson | |
dc.contributor.committeeMember | Norman H. Tolk | |
dc.contributor.committeeMember | William E. Gabella | |
dc.type.material | text | |
thesis.degree.name | PHD | |
thesis.degree.level | dissertation | |
thesis.degree.discipline | Physics | |
thesis.degree.grantor | Vanderbilt University | |
local.embargo.terms | 2011-03-12 | |
local.embargo.lift | 2011-03-12 | |
dc.contributor.committeeChair | Charles A. Brau | |