Resonance ionization mass spectroscopy for trace analysis of plutonium

Erdmann, N.; Albus, F.; Deiβenberger, R.; Eberhardt, Κ.; Funk, H.; Hasse, H.‐U.; Herrmann, G.; Huber, G.; Kluge, H.-J.; Köhler, Stefan; Nunnemann, M.; Passler, G.; Trautmann, Ν.; Urban, F. ‐J.

doi:10.1063/1.47549

Cited by 2 publications

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“…These "sandwich" sources had to be operated at high temperatures, around 2000 K, and the beam yields varied from filament to filament by nearly two Orders of magnitude [10], mainly due to imperfections and instabilities of the coatings. In order to develop more reliable atomic beam sources, thermodynamic and kinetic properties of the actinide elements and possible source materials were examined, as presented in sections 2 to 4 of this paper.…”

Section: Introductionmentioning

confidence: 99%

An Atomic Beam Source for Actinide Elements: Concept and Realization

et al. 1997

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Atomic beams /Actinide elements / Resonance ionization mass spectroscopy / Volatilization SunmiaryFor ultratrace analysis of actinide Clements and studies of their atomic propcrties with resonance ionization mass spectroscopy (RIMS), efficient and stable sources of actinide atomic beams are required. The thermodynamics and idnetics of the evaporation of actinide elements and oxides from a variety of metals were considered, including diffusion, desorption, and associative desorption. On this basis various sandwich-type filaments were studied. The most promising system was found to consist of tantalum as the backing material, an electrolytically deposited actinide hydroxide as the source of the element, and a titanium covering layer for its reduction to the metal. Such sandwich sources were experimentally proven to be well suited for the production of atomic beams of plutonium, curium, berkelium and califomium at relatively low operating temperatures and with high and reproducible yields.

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Section: Introductionmentioning

confidence: 99%