Details
| Original language | English |
|---|---|
| Article number | 106377 |
| Journal | Spectrochimica Acta - Part B Atomic Spectroscopy |
| Volume | 190 |
| Early online date | 17 Feb 2022 |
| Publication status | Published - Apr 2022 |
Abstract
Radioactive particles, so-called hot particles, are of great importance in the risk assessment of environmental pollution and human health hazards. Since most of these particles are only a couple of micrometers in size and thus have correspondingly small atomic inventory, information on origin and composition is difficult to obtain. Many analytical methods do not give insight into isotopic details or require the complete use up of the particle. Resonant laser secondary neutral mass spectrometry (rl-SNMS) has been proven to be a well-suited method for quasi-non-destructive analysis of trace elements. The technique provides high suppression of isobaric interferences and high spatial resolution without necessitating extensive chemical preparation. To measure multiple elements, it is often necessary to switch between laser excitation schemes, requiring elaborate adaptation of the laser setup. Here we present a novel rL-SNMS system capable of multi-element measurements in short succession without any manual adjustment to the laser system. For demonstration, ten micrometer sized hot particles from the Chernobyl Exclusion Zone are analyzed and the obtained isotopic ratios of uranium, plutonium and americium are discussed.
Keywords
- Chernobyl, Hot particle, Isotopic ratios, Resonance ionization, SNMS
ASJC Scopus subject areas
- Chemistry(all)
- Analytical Chemistry
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Physics and Astronomy(all)
- Instrumentation
- Chemistry(all)
- Spectroscopy
Sustainable Development Goals
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In: Spectrochimica Acta - Part B Atomic Spectroscopy, Vol. 190, 106377, 04.2022.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Actinide imaging in environmental hot particles from Chernobyl by rapid spatially resolved resonant laser secondary neutral mass spectrometry
AU - Raiwa, Manuel
AU - Büchner, Sebastian
AU - Kneip, Nina
AU - Weiß, Martin
AU - Hanemann, Paul
AU - Fraatz, Polina
AU - Heller, Maximilian
AU - Bosco, Hauke
AU - Weber, Felix
AU - Wendt, Klaus
AU - Walther, Clemens
N1 - Funding Information: The authors would like to thank Sandra Reinhard and Janine Noordman for their age determination of the used MOX solution and Darcy van Eerten for proof reading. Part of this research was funded by the German Federal Ministry of Education and Research (BMBF, Funding number: 02NUK044A ).
PY - 2022/4
Y1 - 2022/4
N2 - Radioactive particles, so-called hot particles, are of great importance in the risk assessment of environmental pollution and human health hazards. Since most of these particles are only a couple of micrometers in size and thus have correspondingly small atomic inventory, information on origin and composition is difficult to obtain. Many analytical methods do not give insight into isotopic details or require the complete use up of the particle. Resonant laser secondary neutral mass spectrometry (rl-SNMS) has been proven to be a well-suited method for quasi-non-destructive analysis of trace elements. The technique provides high suppression of isobaric interferences and high spatial resolution without necessitating extensive chemical preparation. To measure multiple elements, it is often necessary to switch between laser excitation schemes, requiring elaborate adaptation of the laser setup. Here we present a novel rL-SNMS system capable of multi-element measurements in short succession without any manual adjustment to the laser system. For demonstration, ten micrometer sized hot particles from the Chernobyl Exclusion Zone are analyzed and the obtained isotopic ratios of uranium, plutonium and americium are discussed.
AB - Radioactive particles, so-called hot particles, are of great importance in the risk assessment of environmental pollution and human health hazards. Since most of these particles are only a couple of micrometers in size and thus have correspondingly small atomic inventory, information on origin and composition is difficult to obtain. Many analytical methods do not give insight into isotopic details or require the complete use up of the particle. Resonant laser secondary neutral mass spectrometry (rl-SNMS) has been proven to be a well-suited method for quasi-non-destructive analysis of trace elements. The technique provides high suppression of isobaric interferences and high spatial resolution without necessitating extensive chemical preparation. To measure multiple elements, it is often necessary to switch between laser excitation schemes, requiring elaborate adaptation of the laser setup. Here we present a novel rL-SNMS system capable of multi-element measurements in short succession without any manual adjustment to the laser system. For demonstration, ten micrometer sized hot particles from the Chernobyl Exclusion Zone are analyzed and the obtained isotopic ratios of uranium, plutonium and americium are discussed.
KW - Chernobyl
KW - Hot particle
KW - Isotopic ratios
KW - Resonance ionization
KW - SNMS
UR - http://www.scopus.com/inward/record.url?scp=85124975061&partnerID=8YFLogxK
U2 - 10.1016/j.sab.2022.106377
DO - 10.1016/j.sab.2022.106377
M3 - Article
AN - SCOPUS:85124975061
VL - 190
JO - Spectrochimica Acta - Part B Atomic Spectroscopy
JF - Spectrochimica Acta - Part B Atomic Spectroscopy
SN - 0584-8547
M1 - 106377
ER -