Coulomb clusters in RETRAP

Journal Article · Thu Jan 14 23:00:00 EST 1999 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.57467· OSTI ID:21207937

Steiger, J; Beck, B R; Gruber, L; Schneider, D ^[1]; Church, D A; Holder, J P ^[2]

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1. Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94550 (United States)
2. Texas A and M University, College Station, Texas 77843-4242 (United States)

Storage rings and Penning traps are being used to study ions in their highest charge states. Both devices must have the capability for ion cooling in order to perform high precision measurements such as mass spectrometry and laser spectroscopy. This is accomplished in storage rings in a merged beam arrangement where a cold electron beam moves at the speed of the ions. In RETRAP, a Penning trap located at Lawrence Livermore National Laboratory, a sympathetic laser/ion cooling scheme has been implemented. In a first step, singly charged beryllium ions are cooled electronically by a tuned circuit and optically by a laser. Then hot, highly charged ions are merged into the cold Be plasma. By collisions, their kinetic energy is reduced to the temperature of the Be plasma. First experiments indicate that the highly charged ions form a strongly coupled plasma with a Coulomb coupling parameter exceeding 1000.

• OSTI ID: 21207937
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 457; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
74 ATOMIC AND MOLECULAR PHYSICS
BEAM COOLING
BERYLLIUM IONS
CHARGE STATES
ELECTRON BEAMS
ION BEAMS
LASER RADIATION
LASER SPECTROSCOPY
LAWRENCE LIVERMORE NATIONAL LABORATORY
MASS SPECTROSCOPY
MULTICHARGED IONS
PHOTON-ATOM COLLISIONS
PLASMA
PLASMA CONFINEMENT
STORAGE RINGS
TRAPS