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Automated 90Sr Separation and Preconcentration in a Lab-on-Valve System at Ppq Level

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REPRODUCIBILITY OF RADON-IN-WATER MEASUREMENTS BY EMANOMETRY TECHNIQUE.

C Di Carlo^1,2, G Venoso¹, L Lepore³

¹National Center for Radiation Protection and Computational Physics, Italian National Institute of Health, Viale Regina Elena, 299, 00161 Rome, Italy.

Radiation Protection Dosimetry

|November 1, 2020

Summary

Quality assurance (QA) procedures for radon in water testing using emanometry were developed and validated. The implemented QA procedures demonstrated effective reproducibility for radon detection in water samples.

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A Novel Technique for Raman Analysis of Highly Radioactive Samples Using Any Standard Micro-Raman Spectrometer

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Published on: April 12, 2017

Area of Science:

Environmental Science
Analytical Chemistry
Radiological Protection

Background:

Radon in drinking water is a radiological protection concern.
Directive 2013/51/Euratom sets strict detection limits for radon in water.
The emanometry method is a validated technique for radon detection in water.

Purpose of the Study:

To develop and implement quality assurance (QA) procedures for an emanometry-based radon in water measuring system.
To evaluate the reproducibility of the QA procedures using multiple identical measurement systems.

Main Methods:

Development of QA procedures covering degassing circuit assembly, sample transfer, and control of influencing quantities.
Parallel analysis of 39 water samples using three identical emanometry measurement systems.
Statistical evaluation of measurement variability to assess QA effectiveness.

Main Results:

The developed QA procedures were successfully implemented for the emanometry measuring system.
Low variability (<15% for 84% of measurements) was observed among the three systems for radon concentrations in the 10-100 Bq L-1 range.
The QA procedures proved effective in ensuring reproducible radon detection in water.

Conclusions:

The implemented QA procedures ensure reliable and reproducible radon detection in water using the emanometry method.
These QA procedures meet the stringent requirements for radon monitoring in drinking water set by European directives.
The study validates the effectiveness of systematic quality control in radiological measurements.