Proposal for a Quantum-Degenerate Electron Source

M. Zolotorev, E. D. Commins, and F. Sannibale
Phys. Rev. Lett. 98, 184801 – Published 3 May 2007

Abstract

We propose a pulsed electron source capable of 6D brightness orders-of-magnitude greater than that of existing sources. It could deliver average current up to 0.5 pA and achieve an emittance approaching the quantum limit in each spatial dimension. It could be employed to advantage in electron microscopy, inverse photo-emission, precision low-energy scattering experiments, and electron holography. This source could make possible pump-probe experiments with Ångstrom spatial and subpicosecond time resolution. Here, we present the basic concepts of the source, including a generalized expression for the brightness that can be used in the quantum limited case and the analysis of the main issues that must be addressed for successful construction and operation. We have begun an experiment to demonstrate its essential features.

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  • Received 28 April 2006

DOI:https://doi.org/10.1103/PhysRevLett.98.184801

©2007 American Physical Society

Authors & Affiliations

M. Zolotorev, E. D. Commins*, and F. Sannibale

  • Ernest Orlando Lawrence Berkeley National Laboratory, One Cyclotron Road, Berkeley, California 94720, USA

  • *Also at Department of Physics, University of CA, Berkeley, CA 94720, USA

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Issue

Vol. 98, Iss. 18 — 4 May 2007

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