Articles | Volume 17, issue 7
Research article
11 Apr 2024
Research article |  | 11 Apr 2024

Two new 222Rn emanation sources – a comparison study

Tanita J. Ballé, Stefan Röttger, Florian Mertes, Anja Honig, Petr Kovar, Petr P. S. Otáhal, and Annette Röttger

Data sets

IRSD raw alpha spectrum data for Rn-222 emanation determination Florian Mertes et al.

Model code and software

FlorianMertes/RadonDeconvolution: Version 1.0 (Release) Florian Mertes

Short summary
Over 50 % of naturally occurring radiation exposure is due to 222Rn (progenies), but traceability of measurements to the International System of Units (SI) is lacking. To address this, two new 222Rn sources were developed to be used as calibration standards for reference instruments. These sources were investigated by comparing their estimated calibration factors for one instrument. Despite the small differences derived, all uncertainties are well within the intended target uncertainty of 10 %.