Development and testing of a positron accumulator for antihydrogen production

Journal Article · Fri Dec 10 00:00:00 EST 1999 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1302096· OSTI ID:21210343

Collier, M J. T. ^[1]; Joergensen, L V; Werf, D P. van der; Charlton, M ^[1]; Meshkov, O I ^[2]

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1. Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT (United Kingdom)
2. Budker Institute of Nuclear Physics, 11 Lavrentiev Prospect, Novosibirsk 630090 (Russian Federation)

A positron accumulator based on a modified Penning-Malmberg trap has been constructed and undergone preliminary testing prior to being shipped to CERN in Geneva where it will be a part of an experiment to synthesize low-energy antihydrogen. It utilises nitrogen buffer gas to cool and trap a continuous beam of positrons emanating from a {sup 22}Na radioactive source. A solid neon moderator slows the positrons from the source down to epithermal energies of a few eV before being injected into the trap. It is estimated that around 10{sup 8} positrons can be trapped and cooled to ambient temperature within 5 minutes in this scheme using a 10 mCi source.

• OSTI ID: 21210343
• Journal Information: AIP Conference Proceedings, Vol. 498, Issue 1; Conference: Workshop on non-neutral plasma physics III, Princeton, NJ (United States), 2-5 Aug 1999; Other Information: DOI: 10.1063/1.1302096; (c) 1999 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
ANTIPROTONS
CERN
EV RANGE
HADRONIC ATOMS
HYDROGEN
NEON
NITROGEN
PERFORMANCE TESTING
POSITRONS
RADIATION SOURCES
SODIUM 22
STORAGE
TRAPPING
TRAPS