Related Experiment Video
Updated: Jan 21, 2026

Operation of a 25 KWth Calcium Looping Pilot-plant with High Oxygen Concentrations in the Calciner
Published on: October 25, 2017
Evaluation of a radon-in-water pilot-proficiency test
Viktor Jobbágy1, Heiko Stroh1, Gerd Marissens1
1European Commission, Joint Research Centre, Directorate for Nuclear Safety and Security, Retieseweg 111, B-2440, Geel, Belgium.
Abstract:
A pilot proficiency test (PT) on measurements of the massic activity of 222Rn in drinking water was organised by JRC-Geel. Fourteen environmental radioactivity monitoring laboratories were invited to participate. The key aim of the study was to test, optimise and stream-line the complete process for conducting such a PT in order to perform a large scale Europe-wide PT in a robust manner. The process involved using all state-of-the art knowledge on sampling, transporting and measuring 222Rn in water. It was found that the majority of the participants' results (92%) were within the ±15% reference range. The pilot-PT showed that the applied process was suitable and can be used for the large scale European PT planned for the third quarter of 2018.
Related Concept Videos
Pilot and Numeric Relaying
States of Water
Water freezes when the intermolecular forces are greater than the kinetic energy. Unlike most other substances, water is less dense in its solid state than in its liquid state. This is because each water molecule can form...
Water and Mineral Acquisition
Quality of Water
The Water Cycle
Effect of Sea Water on Concrete
Concrete in areas between tide marks,...

