Quantum-degenerate electron source: a proposal

Quantum-degenerate electron source: a proposal

We propose a pulsed electron source capable of a 6Dbrightness orders-of-magnitude greater than that of existing sources. Itcould deliver average current up to 0.5 pA and achieve an emittanceapproaching the quantum limit of one Compton wavelength in each spatialdimension. It could be employed to adva...

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Bibliographic Details
Published in:Physical review letters Vol. 98; no. 18
Main Authors: Zolotorev, Max, Commins, Eugene D., Sannibale, Fernando
Format: Journal Article
Language:English
Published: United States 28-04-2006
Subjects:
ACCURACY
BRIGHTNESS
COMPTON WAVELENGTH
CONSTRUCTION
ELECTRON MICROSCOPY
Electron Source High Brightness
ELECTRON SOURCES
ELECTRONS
HOLOGRAPHY
SCATTERING
TIME RESOLUTION
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Summary:We propose a pulsed electron source capable of a 6Dbrightness orders-of-magnitude greater than that of existing sources. Itcould deliver average current up to 0.5 pA and achieve an emittanceapproaching the quantum limit of one Compton wavelength in each spatialdimension. It could be employed to advantage in electron microscopy,inverse photo-emission, precision low-energy scattering experiments, andelectron holography. This source could make possible pump-probeexperiments with Angstrom spatial and sub-picosecond time resolution.Here we describe basic concepts of the source, including analysis of mainissues that must be addressed for its successful construction andoperation. We have begun an experiment to demonstrate its essentialfeatures.
Bibliography:USDOE Laboratory Directed Research andDevelopment
DE-AC02-05CH11231
LBNL-60067
ISSN:0031-9007
1079-7114