Resonance ionization mass spectroscopy for trace detection of plutonium

M. Nunnemann; K. Eberhardt; N. Erdmann; H. Funk; H.-U. Hasse; G. Herrmann; Guenter Huber; H.-J. Kluge; S. Koehler; G. Passler; N. Trautmann; Franz-Josef Urban

doi:10.1117/12.224145

9 October 1995 Resonance ionization mass spectroscopy for trace detection of plutonium

M. Nunnemann, K. Eberhardt, N. Erdmann, H. Funk, H.-U. Hasse, G. Herrmann, Guenter Huber, H.-J. Kluge, S. Koehler, G. Passler, N. Trautmann, Franz-Josef Urban

Author Affiliations +

Proceedings Volume 2504, Environmental Monitoring and Hazardous Waste Site Remediation; (1995) https://doi.org/10.1117/12.224145
Event: European Symposium on Optics for Environmental and Public Safety, 1995, Munich, Germany

Abstract

Trace amounts of radiotoxic elements are determined by means of resonance ionization mass spectroscopy (RIMS). An extremely high element-selectivity is obtained via resonant multiphoton excitation of the atoms leading to an autoionizing state. The ions produced are mass-selectively detected. This leads to good isotope-selectivity and efficient background suppression. These properties allow a simplification of the chemical separation. With RIMS the detection limit does not depend on half-life or decay mode of the determined isotopes as it is the case for radiometric methods. Two experimental approaches for trace detection of plutonium are described. An overall detection efficiency of 3 multiplied by 10^-5 has been determined yielding a detection limit of 1 multiplied by 10⁶ atoms of ²³⁹Pu. The practicability of those methods was demonstrated with environmental samples.

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M. Nunnemann, K. Eberhardt, N. Erdmann, H. Funk, H.-U. Hasse, G. Herrmann, Guenter Huber, H.-J. Kluge, S. Koehler, G. Passler, N. Trautmann, and Franz-Josef Urban "Resonance ionization mass spectroscopy for trace detection of plutonium", Proc. SPIE 2504, Environmental Monitoring and Hazardous Waste Site Remediation, (9 October 1995); https://doi.org/10.1117/12.224145

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