Towards a radon-in-water primary standard at LNHB

Krasimir Mitev; Benoit Sabot; Sylvie Pierre; Marie-Christine Lépy; Philippe Cassette

doi:10.1016/j.apradiso.2023.111013

Towards a radon-in-water primary standard at LNHB

Appl Radiat Isot. 2023 Nov:201:111013. doi: 10.1016/j.apradiso.2023.111013. Epub 2023 Sep 2.

Authors

Krasimir Mitev¹, Benoit Sabot², Sylvie Pierre², Marie-Christine Lépy², Philippe Cassette³

Affiliations

¹ Sofia University "St. Kliment Ohridski", Faculty of Physics, 1164, Sofia, Bulgaria. Electronic address: kmitev@phys.uni-sofia.bg.
² Université Paris-Saclay, CEA, LIST, Laboratoire National Henri Becquerel (LNE-LNHB), 91120, Palaiseau, France.
³ Sofia University "St. Kliment Ohridski", Faculty of Physics, 1164, Sofia, Bulgaria.

PMID: 37688905
DOI: 10.1016/j.apradiso.2023.111013

Abstract

Despite widespread radon-in-water measurements, no primary radon-in-water standards currently exist. This work aims to bridge this gap by developing a system to produce radon-in-water reference materials. The system relies on cryogenic, loss-free transfer of radon, which is standardized through defined solid angle measurements, to a radon standard in water. It allows for preparation of liquid scintillation and gamma-ray spectrometry samples with traceable radon-in-water concentrations. The system's design, functionality, and the results of pilot performance tests are described.

Keywords: (222)Rn; Gamma-ray spectrometry; Liquid scintillation; Primary standard; Radon-in-water; TDCR.