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Developing High-Brightness Electron Beam Sources for Producing Quantum Degenerate Electron Beams

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dc.contributor.advisor Brau, Charles A., 1938-
dc.contributor.author Kohler, Jonathan
dc.date.accessioned 2011-07-28T21:32:52Z
dc.date.available 2011-07-28T21:32:52Z
dc.date.issued 2011-04
dc.identifier.uri http://hdl.handle.net/1803/4840
dc.description.abstract The Pauli Exclusion Principle places a fundamental limit on the brightness of an electron beam. Developing a cathode which can reach this limit is useful for achieving maximum operation in current applications of electron beams, but also opens new areas of physics to be explored. When the phase space of the electron beam is filled to the maximum density, the electrons will experience a degeneracy pressure, similar to that which keeps a neutron star from collapsing. One promising source for a quantum degenerate beam is field emission from adsorbates on carbon nanotubes. Adsorbates have been shown to provide several orders of magnitude enhancement to emission brightness, which approaches the degeneracy limit. We have developed experiments to test various adsorbates, in order to find those which bind tightest and provide the largest enhancement in brightness. Continuing work to discover better adsorbates should soon allow for the generation of a quantum degenerate electron beam. en_US
dc.language.iso en_US en_US
dc.publisher Vanderbilt University. Dept. of Physics and Astronomy en_US
dc.subject high brightness cathode en_US
dc.subject electron beam en_US
dc.subject carbon nanotube en_US
dc.subject field emission en_US
dc.subject quantum degeneracy en_US
dc.subject resonant tunneling en_US
dc.subject.lcsh Electron beams en_US
dc.subject.lcsh High-brightness accelerators en_US
dc.subject.lcsh Field emission cathodes en_US
dc.subject.lcsh Particle beams en_US
dc.title Developing High-Brightness Electron Beam Sources for Producing Quantum Degenerate Electron Beams en_US
dc.type Thesis en_US
dc.description.college College of Arts and Science en_US
dc.description.school Vanderbilt University en_US
dc.description.department Department of Physics and Astronomy en_US


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