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arXiv · 1308.4806

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

Sebastian Lindemann·Hardy Simgen
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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.

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Sebastian Lindemann, Hardy Simgen. 2014-03-27. Krypton assay in xenon at the ppq level using a gas chromatographic system and mass spectrometer. https://doi.org/10.1140/epjc%2Fs10052-014-2746-1

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