Improved and automated krypton assay for low-background xenon detectors with Auto-RGMS
Abstract Ultra-sensitive quantification of trace radioactive krypton-85 ( $$^{85}$$ 85 Kr) is essential for low-background experiments, particularly for next-generation searches of galactic dark matter and neutrino physics using xenon-based time projection chambers (TPCs). While the rare gas mass sp...
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| Language: | English |
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SpringerOpen
2025-05-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-025-14262-2 |
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| author | Matteo Guida Ying-Ting Lin Hardy Simgen |
| author_facet | Matteo Guida Ying-Ting Lin Hardy Simgen |
| author_sort | Matteo Guida |
| collection | DOAJ |
| description | Abstract Ultra-sensitive quantification of trace radioactive krypton-85 ( $$^{85}$$ 85 Kr) is essential for low-background experiments, particularly for next-generation searches of galactic dark matter and neutrino physics using xenon-based time projection chambers (TPCs). While the rare gas mass spectrometer (RGMS) represents the current state-of-the-art for krypton detection in the field, we are developing a fully automated system (Auto-RGMS) to overcome the limitations of its manual operation. Auto-RGMS incorporates a robust control system for rapid measurements and minimized systematic uncertainties. A primary goal is to reach detection limits in the low parts-per-quadrillion (ppq) range for natural krypton by improving the chromatography stage to enhance the separation of krypton from xenon. Investigations into various adsorbent materials identified two candidates. HayeSep Q offers a 12-fold improvement in chromatographic resolution for xenon/krypton separation compared to the previously used adsorbent. Alternatively, HayeSep D provides a more limited improvement in resolution while allowing a higher measurement frequency because of its moderate retention-induced contamination after each measurement. By automating krypton assays and achieving ppq sensitivity, Auto-RGMS will be an indispensable tool for next-generation detectors, maximizing their scientific potential. |
| format | Article |
| id | doaj-art-9c7fcf6ade354c97bae3f222c02e1b51 |
| institution | OA Journals |
| issn | 1434-6052 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj-art-9c7fcf6ade354c97bae3f222c02e1b512025-08-20T01:59:56ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522025-05-0185511010.1140/epjc/s10052-025-14262-2Improved and automated krypton assay for low-background xenon detectors with Auto-RGMSMatteo Guida0Ying-Ting Lin1Hardy Simgen2Max-Planck-Institut für KernphysikMax-Planck-Institut für KernphysikMax-Planck-Institut für KernphysikAbstract Ultra-sensitive quantification of trace radioactive krypton-85 ( $$^{85}$$ 85 Kr) is essential for low-background experiments, particularly for next-generation searches of galactic dark matter and neutrino physics using xenon-based time projection chambers (TPCs). While the rare gas mass spectrometer (RGMS) represents the current state-of-the-art for krypton detection in the field, we are developing a fully automated system (Auto-RGMS) to overcome the limitations of its manual operation. Auto-RGMS incorporates a robust control system for rapid measurements and minimized systematic uncertainties. A primary goal is to reach detection limits in the low parts-per-quadrillion (ppq) range for natural krypton by improving the chromatography stage to enhance the separation of krypton from xenon. Investigations into various adsorbent materials identified two candidates. HayeSep Q offers a 12-fold improvement in chromatographic resolution for xenon/krypton separation compared to the previously used adsorbent. Alternatively, HayeSep D provides a more limited improvement in resolution while allowing a higher measurement frequency because of its moderate retention-induced contamination after each measurement. By automating krypton assays and achieving ppq sensitivity, Auto-RGMS will be an indispensable tool for next-generation detectors, maximizing their scientific potential.https://doi.org/10.1140/epjc/s10052-025-14262-2 |
| spellingShingle | Matteo Guida Ying-Ting Lin Hardy Simgen Improved and automated krypton assay for low-background xenon detectors with Auto-RGMS European Physical Journal C: Particles and Fields |
| title | Improved and automated krypton assay for low-background xenon detectors with Auto-RGMS |
| title_full | Improved and automated krypton assay for low-background xenon detectors with Auto-RGMS |
| title_fullStr | Improved and automated krypton assay for low-background xenon detectors with Auto-RGMS |
| title_full_unstemmed | Improved and automated krypton assay for low-background xenon detectors with Auto-RGMS |
| title_short | Improved and automated krypton assay for low-background xenon detectors with Auto-RGMS |
| title_sort | improved and automated krypton assay for low background xenon detectors with auto rgms |
| url | https://doi.org/10.1140/epjc/s10052-025-14262-2 |
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