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

The European Physical Journal C

Hardy Simgen¹  Sebastian Lindemann¹ 

[1] Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 , Heidelberg, Germany;

关键词: Xenon;    Systematic Uncertainty;    Krypton;    Procedure Blank;    Cold Finger;   

DOI  :  10.1140/epjc/s10052-014-2746-1

来源: Springer

【 摘 要 】

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.

【 授权许可】

CC BY