Detection of 135Cs & 137Cs in environmental samples by AMS

Alexander Wieser; Johannes Lachner; Martin Martschini; Dorian Zok; Alfred Priller; Peter Steier; Robin Golser

doi:10.1016/j.nimb.2023.02.013

Detection of ¹³⁵Cs & ¹³⁷Cs in environmental samples by AMS

Alexander Wieser^*
, Johannes Lachner
, Martin Martschini
, Dorian Zok
, Alfred Priller
, Peter Steier
, Robin Golser

^*Corresponding author for this work

Centre for Radiation Protection and Radioecology

Research output: Contribution to journal › Article › Research › peer review

Abstract

The detection of low abundances of ¹³⁵Cs in environmental samples is of significant interest in different fields of environmental sciences, especially in combination with its shorter-lived sister isotope ¹³⁷Cs. The method of Ion–Laser InterAction Mass Spectrometry (ILIAMS) for barium separation at the Vienna Environmental Research Accelerator (VERA) was investigated and further improved for low abundance cesium detection. The difluorides BaF₂⁻ and CsF₂⁻ differ in their electron detachment energies and make isobar suppression with ILIAMS by more than 7 orders of magnitude possible. By this method, samples with ratios down to the order of ^135,137Cs/¹³³Cs ≈10⁻¹¹ are measurable and the ¹³⁵Cs/¹³⁷Cs ratios of first environmental samples were determined by AMS.

Original language	English
Pages (from-to)	36-40
Number of pages	5
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	538
E-pub ahead of print	1 Mar 2023
DOIs	https://doi.org/10.1016/j.nimb.2023.02.013
Publication status	Published - May 2023

Keywords

Cs
Accelerator mass spectrometry
ILIAMS
Ion cooler
Laser photodetachment

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

Access to Document

10.1016/j.nimb.2023.02.013Licence: CC BY 4.0

Cite this

@article{ffea1d0bb6f244a3bb9a7d476f4b5790,

title = "Detection of 135Cs \& 137Cs in environmental samples by AMS",

abstract = "The detection of low abundances of 135Cs in environmental samples is of significant interest in different fields of environmental sciences, especially in combination with its shorter-lived sister isotope 137Cs. The method of Ion–Laser InterAction Mass Spectrometry (ILIAMS) for barium separation at the Vienna Environmental Research Accelerator (VERA) was investigated and further improved for low abundance cesium detection. The difluorides BaF2− and CsF2− differ in their electron detachment energies and make isobar suppression with ILIAMS by more than 7 orders of magnitude possible. By this method, samples with ratios down to the order of 135,137Cs/133Cs ≈10−11 are measurable and the 135Cs/137Cs ratios of first environmental samples were determined by AMS.",

keywords = "Cs, Accelerator mass spectrometry, ILIAMS, Ion cooler, Laser photodetachment",

author = "Alexander Wieser and Johannes Lachner and Martin Martschini and Dorian Zok and Alfred Priller and Peter Steier and Robin Golser",

note = "Funding Information: We thank Armin Shayeghi (University of Vienna) for calculating the vertical detachment energies for the difluoride molecules and Sabrina Beutner (Helmholtz-Zentrum Dresden-Rossendorf) for determining the stable Cs concentration in the 137Cs reference solution. Part of this work was funded by the RADIATE project under the Grant Agreement 824096 from the EU Research and Innovation program HORIZON 2020. The authors acknowledge financial support of the ILIAMS research activities by “Investitionsprojekte” of the University of Vienna, Austria. Funding Information: Part of this work was funded by the RADIATE project under the Grant Agreement 824096 from the EU Research and Innovation program HORIZON 2020. The authors acknowledge financial support of the ILIAMS research activities by “Investitionsprojekte” of the University of Vienna, Austria . ",

year = "2023",

month = may,

doi = "10.1016/j.nimb.2023.02.013",

language = "English",

volume = "538",

pages = "36--40",

journal = "Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms",

issn = "0168-583X",

publisher = "Elsevier BV",

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TY - JOUR

T1 - Detection of 135Cs & 137Cs in environmental samples by AMS

AU - Wieser, Alexander

AU - Lachner, Johannes

AU - Martschini, Martin

AU - Zok, Dorian

AU - Priller, Alfred

AU - Steier, Peter

AU - Golser, Robin

N1 - Funding Information: We thank Armin Shayeghi (University of Vienna) for calculating the vertical detachment energies for the difluoride molecules and Sabrina Beutner (Helmholtz-Zentrum Dresden-Rossendorf) for determining the stable Cs concentration in the 137Cs reference solution. Part of this work was funded by the RADIATE project under the Grant Agreement 824096 from the EU Research and Innovation program HORIZON 2020. The authors acknowledge financial support of the ILIAMS research activities by “Investitionsprojekte” of the University of Vienna, Austria. Funding Information: Part of this work was funded by the RADIATE project under the Grant Agreement 824096 from the EU Research and Innovation program HORIZON 2020. The authors acknowledge financial support of the ILIAMS research activities by “Investitionsprojekte” of the University of Vienna, Austria .

PY - 2023/5

Y1 - 2023/5

N2 - The detection of low abundances of 135Cs in environmental samples is of significant interest in different fields of environmental sciences, especially in combination with its shorter-lived sister isotope 137Cs. The method of Ion–Laser InterAction Mass Spectrometry (ILIAMS) for barium separation at the Vienna Environmental Research Accelerator (VERA) was investigated and further improved for low abundance cesium detection. The difluorides BaF2− and CsF2− differ in their electron detachment energies and make isobar suppression with ILIAMS by more than 7 orders of magnitude possible. By this method, samples with ratios down to the order of 135,137Cs/133Cs ≈10−11 are measurable and the 135Cs/137Cs ratios of first environmental samples were determined by AMS.

AB - The detection of low abundances of 135Cs in environmental samples is of significant interest in different fields of environmental sciences, especially in combination with its shorter-lived sister isotope 137Cs. The method of Ion–Laser InterAction Mass Spectrometry (ILIAMS) for barium separation at the Vienna Environmental Research Accelerator (VERA) was investigated and further improved for low abundance cesium detection. The difluorides BaF2− and CsF2− differ in their electron detachment energies and make isobar suppression with ILIAMS by more than 7 orders of magnitude possible. By this method, samples with ratios down to the order of 135,137Cs/133Cs ≈10−11 are measurable and the 135Cs/137Cs ratios of first environmental samples were determined by AMS.

KW - Cs

KW - Accelerator mass spectrometry

KW - ILIAMS

KW - Ion cooler

KW - Laser photodetachment

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DO - 10.1016/j.nimb.2023.02.013

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JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

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