Multiply-ionized atoms isolated at low energy in a unitary Penning trap

Journal Article · Fri Jan 09 00:00:00 EST 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4905405· OSTI ID:22390837

Guise, Nicholas D. ^[1]; Brewer, Samuel M. ^[2]

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1. National Institute of Standards and Technology (NIST), Gaithersburg, Maryland 20899 (United States)
2. National Institute of Standards and Technology (NIST), Gaithersburg, Maryland 20899, USA and University of Maryland, College Park, Maryland 20742 (United States)

Ions extracted from the EBIT at NIST are slowed and captured in a Penning trap that is made very compact (< 150 cm{sup 3}) by a unitary architecture [1]. Measurements after 1 ms of ion storage indicate that the isolated ions are distributed with 5.5(5) eV of energy spread, which is roughly 2 orders of magnitude lower than expected in the ion source, without implementing any active cooling [2]. Some experiments are discussed. One goal is to produce one-electron ions in high angular momentum states for studying optical transitions between Rydberg states that could potentially enable new tests of quantum electrodynamics (QED) and determinations of fundamental constants [3].

• OSTI ID: 22390837
• Journal Information: AIP Conference Proceedings, Vol. 1640, Issue 1; Conference: 12. International Symposium on Electron Beam Ion Sources and Traps, East Lansing, MI (United States), 18-21 May 2014; Other Information: (c) 2015 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
ANGULAR MOMENTUM
ATOMS
CAPTURE
COOLING
ELECTRONS
EV RANGE
FUNDAMENTAL CONSTANTS
IONS
POTENTIALS
QUANTUM ELECTRODYNAMICS
RYDBERG STATES
TRAPS