Krypton assay in xenon at the ppq level using a gas chromatographic system and mass spectrometer

Abstract

We have developed a new method to measure krypton traces in xenon at unprecedented low concentrations. This is a mandatory task for many near-future low-background particle physics detectors. Our system separates krypton from xenon using cryogenic gas chromatography. The amount of krypton is then quantified using a mass spectrometer. We demonstrate that the system has achieved a detection limit of 8 ppq (parts per quadrillion) and present results of distilled xenon with krypton concentrations below 1 ppt.

7 pages, 4 figures

References in corpus (1)

• An atom trap trace analysis system for measuring krypton contamination in xenon dark matter detectors

Cited by in corpus (29)

• Dark Matter Search Results from a One Tonne$\times$Year Exposure of XENON1T
• First Dark Matter Search Results from the XENON1T Experiment
• Excess Electronic Recoil Events in XENON1T
• Physics reach of the XENON1T dark matter experiment
• Dark matter direct-detection experiments
• DARWIN: towards the ultimate dark matter detector
• Search for New Physics in Electronic Recoil Data from XENONnT
• The XENON1T Dark Matter Experiment
• Projected WIMP Sensitivity of the XENONnT Dark Matter Experiment
• A Next-Generation Liquid Xenon Observatory for Dark Matter and Neutrino Physics
• XENON100 Dark Matter Results from a Combination of 477 Live Days
• XENON1T Dark Matter Data Analysis: Signal & Background Models, and Statistical Inference
• The XENONnT Dark Matter Experiment
• Removing krypton from xenon by cryogenic distillation to the ppq level
• Search for Electronic Recoil Event Rate Modulation with 4 Years of XENON100 Data
• Search for Event Rate Modulation in XENON100 Electronic Recoil Data
• WIMP Dark Matter Direct-Detection Searches in Noble Gases
• Double-Weak Decays of ${}^{124}$Xe and ${}^{136}$Xe in the XENON1T and XENONnT Experiments
• WIMP Dark Matter Search using a 3.1 Tonne-Year Exposure of the XENONnT Experiment
• Chromatographic separation of radioactive noble gases from xenon
• Direct Detection of Dark Matter -- APPEC Committee Report
• Prospects for dark matter detection with inelastic transitions of xenon
• Intrinsic backgrounds from Rn and Kr in the XENON100 experiment
• An atom trap trace analysis system for measuring krypton contamination in xenon dark matter detectors
• The XLZD Design Book: Towards the Next-Generation Liquid Xenon Observatory for Dark Matter and Neutrino Physics
• Optical Excitation and Trapping of ${}^{81}$Kr
• A novel ${}^{83\mathrm{m}}$Kr tracer method for characterizing xenon gas and cryogenic distillation systems
• New method of 85Kr reduction in a noble gas based low-background detector
• Improved and automated krypton assay for low-background xenon detectors with Auto-RGMS