Laser resonant ionization of plutonium |
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Authors: | U Krönert J Bonn H -J Kluge W Ruster K Wallmeroth P Peuser N Trautmann |
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Institution: | (1) Institut für Physik, Universität, D-6500 Mainz, Fed. Rep. Germany;(2) Institut für Kernchemie, Universität, D-6500 Mainz, Fed. Rep. Germany |
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Abstract: | Resonance ionization mass spectrometry (RIMS) has been tested for the isotope-selective determination of trace amounts of plutonium. An atomic beam is formed by evaporating plutonium atoms from a rhenium-filament heated to 1800 °C. The radiation of a pulsed dye laser excites the atoms in a two-photon process (=595.2 nm) followed by photoionization of the excited atoms. Mass selectivity is obtained by use of a time-of-flight spectrometer. A resonant signal of239Pu was measured with 1013 atoms deposited on the filament. |
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Keywords: | 42 80 32 80F 32 80H |
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