Determination of the first ionization potential of actinides by resonance ionization mass spectroscopy

Journal Article · Sat Apr 01 04:00:00 EST 1995 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.47584· OSTI ID:21153727

Koehler, S; Albus, F; Dibenberger, R; Erdmann, N; Funk, H; Hasse, H -U; Herrmann, G; Huber, G; Kluge, H -J; Nunnemann, M; Passler, G; Rao, P M; Riegel, J; Trautmann, N; Urban, F -J ^[1]

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1. Institut fuer Kernchemie Universitaet Mainz, D-55099 Mainz (Germany)

Resonance ionization mass spectroscopy (RIMS) is used for the precise determination of the first ionization potential of transuranium elements. The first ionization potentials (IP) of americium and curium have been measured for the first time to IPAm=5.9738(2) and IPCm=5.9913(8) eV, respectively, using only 10{sup 12} atoms of {sup 243}Am and {sup 248}Cm. The same technique was applied to thorium, neptunium, and plutonium yielding IPTH=6.3067(2), IPNP=6.2655(2), and IPPu=6.0257(8) eV. The good agreement of our results with the literature data proves the precision of the method which was additionally confirmed by the analysis of Rydberg seris of americium measured by RIMS.

• OSTI ID: 21153727
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 329; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ACCURACY
AMERICIUM
AMERICIUM 243
ATOMS
CURIUM
CURIUM 248
EV RANGE
IONIZATION POTENTIAL
NEPTUNIUM
PLUTONIUM
RESONANCE IONIZATION MASS SPECTROSCOPY
RYDBERG STATES
THORIUM