Maximum intensity, transmission limited cold electron beams from GaAs photocathode in the eV and sub-eV kinetic energy range

The deceleration of electrons confined by a weak guiding magnetic field has been studied with the goal of achieving an intense ultracold electron beam, suitable for electron cooling and electron collision experiments with ion beams of very low velocity. By application of a beam deceleration techniqu...

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Main Authors: A. Shornikov, D. A. Orlov, C. Krantz, A. S. Jaroshevich, A. Wolf
Format: Article
Language:English
Published: American Physical Society 2014-03-01
Series:Physical Review Special Topics. Accelerators and Beams
Online Access:http://doi.org/10.1103/PhysRevSTAB.17.042802
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author A. Shornikov
D. A. Orlov
C. Krantz
A. S. Jaroshevich
A. Wolf
author_facet A. Shornikov
D. A. Orlov
C. Krantz
A. S. Jaroshevich
A. Wolf
author_sort A. Shornikov
collection DOAJ
description The deceleration of electrons confined by a weak guiding magnetic field has been studied with the goal of achieving an intense ultracold electron beam, suitable for electron cooling and electron collision experiments with ion beams of very low velocity. By application of a beam deceleration technique the electron current extracted from a GaAs photocathode has been increased by an order of magnitude at a few eV and sub-eV kinetic energy, keeping a low energy spread of the electrons. The true kinetic energy of the slow electrons has been determined, taking space charge effects and contact potential differences into account.
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spelling doaj.art-880084c25557487b8d9034472782ec842022-12-22T02:29:07ZengAmerican Physical SocietyPhysical Review Special Topics. Accelerators and Beams1098-44022014-03-0117404280210.1103/PhysRevSTAB.17.042802Maximum intensity, transmission limited cold electron beams from GaAs photocathode in the eV and sub-eV kinetic energy rangeA. ShornikovD. A. OrlovC. KrantzA. S. JaroshevichA. WolfThe deceleration of electrons confined by a weak guiding magnetic field has been studied with the goal of achieving an intense ultracold electron beam, suitable for electron cooling and electron collision experiments with ion beams of very low velocity. By application of a beam deceleration technique the electron current extracted from a GaAs photocathode has been increased by an order of magnitude at a few eV and sub-eV kinetic energy, keeping a low energy spread of the electrons. The true kinetic energy of the slow electrons has been determined, taking space charge effects and contact potential differences into account.http://doi.org/10.1103/PhysRevSTAB.17.042802
spellingShingle A. Shornikov
D. A. Orlov
C. Krantz
A. S. Jaroshevich
A. Wolf
Maximum intensity, transmission limited cold electron beams from GaAs photocathode in the eV and sub-eV kinetic energy range
Physical Review Special Topics. Accelerators and Beams
title Maximum intensity, transmission limited cold electron beams from GaAs photocathode in the eV and sub-eV kinetic energy range
title_full Maximum intensity, transmission limited cold electron beams from GaAs photocathode in the eV and sub-eV kinetic energy range
title_fullStr Maximum intensity, transmission limited cold electron beams from GaAs photocathode in the eV and sub-eV kinetic energy range
title_full_unstemmed Maximum intensity, transmission limited cold electron beams from GaAs photocathode in the eV and sub-eV kinetic energy range
title_short Maximum intensity, transmission limited cold electron beams from GaAs photocathode in the eV and sub-eV kinetic energy range
title_sort maximum intensity transmission limited cold electron beams from gaas photocathode in the ev and sub ev kinetic energy range
url http://doi.org/10.1103/PhysRevSTAB.17.042802
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