Ultra Cold Photoelectron Beams for Ion Storage Rings

Journal Article · Tue Aug 04 00:00:00 EDT 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3215583· OSTI ID:21316847

Orlov, D A; Krantz, C; Shornikov, A; Lestinsky, M; Hoffmann, J; Wolf, A ^[1]; Jaroshevich, A S; Kosolobov, S N; Terekhov, A S ^[2]

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1. Max-Planck-Institut fuer Kernphysik, 69117, Heidelberg (Germany)
2. Institute of Semiconductor Physics, 630090, Novosibirsk (Russian Federation)

An ultra cold electron target with a cryogenic GaAs photocathode source, developed for the Heidelberg TSR, delivers electron currents up to a few mA with typical kinetic energies of few keV and provides unprecedented energy resolution below 1 meV for electron-ion recombination merged-beam experiments. For the new generation of low-energy electrostatic storage rings, cold electron beams from a photocathode source can bring additional benefits, improving the cooling efficiency of stored ions and making it possible to cool even heavy, slow molecules by electron beams of energies of only a few eV or even below.

• OSTI ID: 21316847
• Journal Information: AIP Conference Proceedings, Vol. 1149, Issue 1; Conference: 18. international spin physics symposium, Charlottesville, VA (United States), 6-11 Oct 2008; Other Information: DOI: 10.1063/1.3215583; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
BEAM COOLING
ELECTRON BEAMS
ELECTRON-ION COLLISIONS
ELECTRONS
ENERGY RESOLUTION
EV RANGE
GALLIUM ARSENIDES
IONS
KEV RANGE
KINETIC ENERGY
MEV RANGE
MOLECULES
PHOTOCATHODES
PHOTOELECTRON SPECTROSCOPY
STORAGE RINGS