Antiproton compression and radial measurements

Control of the radial profile of trapped antiproton clouds is critical to trapping antihydrogen. We report detailed measurements of the radial manipulation of antiproton clouds, including areal density compressions by factors as large as ten, achieved by manipulating spatially overlapped electron pl...

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Bibliographic Details
Main Authors: Andresen, G B, Bertsche, W, Bowe, P D, Bray, C C, Butler, E, Cesar, C L, Chapman, S, Charlton, M, Fajans, J, Fujiwara, M C, Funakoshi, R, Gill, D R, Hangst, J S, Hardy, W N, Hayano, R S, Hayden, M E, Humphries, A J, Hydomako, R, Jenkins, M J
Format: Conference Proceeding
Language:English
Subjects:
ANTIPROTONS
ATOMIC AND MOLECULAR PHYSICS
DENSITY
ELECTRONS
HADRONIC ATOMS
MAGNETIC COMPRESSION
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC FIELDS
OCTUPOLES
TRAPPING
TRAPS
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Summary:Control of the radial profile of trapped antiproton clouds is critical to trapping antihydrogen. We report detailed measurements of the radial manipulation of antiproton clouds, including areal density compressions by factors as large as ten, achieved by manipulating spatially overlapped electron plasmas. We show detailed measurements of the near-axis antiproton radial profile, and its relation to that of the electron plasma. We also measure the outer radial profile by ejecting antiprotons to the trap wall using an octupole magnet.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.2977860