Conveners
Methods of measurement for both radon and thoron - devices, metrological aspects: Methods of measurement for both radon and thoron - devices, metrological aspects
- Eliška Fialová (National Institute for NBC Protection)
- Tomislav Bituh (Institute for Medical Research and Occupational Health)
Description
Focused on:
• Radon and thoron monitoring at workplaces incl. personal monitoring.
• Measurement in mixed fields of radon and thoron.
• Measurement of radon and thoron progenies.
• QA/QC of radon and thoron measurements.
Other relevant topics: Measurement errors; accuracy of measurement; comparison measurements; radon/thoron time series analysis; QA and QC programs; active aerosol spectra measurements; attached and unattached fraction of radon/thoron progenies measurements; etc.
-
Catherine Miller (UK Health Security Agency)09/09/2024, 10:40Methods of measurement for both radon and thoron - devices, metrological aspectsOral presentation
Radon is a colourless, odourless radioactive gas which is the largest source of our annual radiation dose. It can only be measured using detectors, which can be passive or electronic.
Go to contribution page
Passive radon detectors are cheap and easy to manufacture or to buy, so companies can provide a radon measurement service for householders and employers. The accuracy of the detectors depends on various... -
Viktoria Benková (FMFI UK)09/09/2024, 11:00Methods of measurement for both radon and thoron - devices, metrological aspectsOral presentation
The Council Directive 2013/59/EURATOM of the European Union mandates member states to implement national action plans to address long-term risks from radon exposure. The risk level posed by radon exposure can only be assessed based on its average activity indoors, derived from year-round measurements. The activity of radon in houses varies over time, typically showing seasonal variations with...
Go to contribution page -
Petr Kovář (Czech Metrology Institute)09/09/2024, 11:20Methods of measurement for both radon and thoron - devices, metrological aspectsPoster
In frame of the research programme European Partnership on Metrology, new project 'Radon metrology: Sensor networks for large buildings and future cities' was accepted for funding.The project addresses the challenge of quantifying Rn-222 activity concentrations indoors, particularly in large buildings for future cities with a focus on connected, low-energy consumption buildings. The...
Go to contribution page -
Eliška Fialová (National Institute for NBC Protection)09/09/2024, 13:30Methods of measurement for both radon and thoron - devices, metrological aspectsOral presentation
Knowledge of the activity size distribution of radon daughters is one of the main parameters for determining the effective dose from inhalation of short-term radon decay products. The presentation describes the laboratory validation of a method for determining the activity size distribution of radon decay products using the cascade impactor Dekati ELPI+ and the diffusion battery. Using nuclear...
Go to contribution page -
Mohammad Alem Sultani (Comenius University in Bratislava)09/09/2024, 13:50Methods of measurement for both radon and thoron - devices, metrological aspectsOral presentation
This study investigates the temporal dynamics of outdoor radon activity concentration (RAC) in Bratislava, Slovakia, using a four-year dataset of continuous measurements. The fast Fourier Transform (FFT) analysis of the RAC data revealed the presence of periodicities at 24, 12, and 8 hours. A typical diurnal RAC cycle was observed, with peak concentrations occurring in the early morning and...
Go to contribution page -
David Wright (UK Health Security Agency)09/09/2024, 14:10Methods of measurement for both radon and thoron - devices, metrological aspectsOral presentation
Many Electronic Radon Integrating Monitors (ERIMs) have been developed and retailed over the last decade. ERIMs are targeted to non-professional consumers, are smaller and lighter than an AlphaGUARD, and have a screen and/or mobile application for the display of radon levels. Many of them use a small diffusion chamber with a silicon photodiode for the detection of radon. Some ERIMs could allow...
Go to contribution page -
Dr Jovana Knežević Radić (Faculty of Sciences, University of Novi SadJo)09/09/2024, 14:30Methods of measurement for both radon and thoron - devices, metrological aspectsPoster
In this paper the results of indoor radon surveys in three geologically different regions in Serbia were presented and analyzed according to the influence of nearby soil. The activity concentrations of natural radionuclides in the soil samples were determined by gamma spectrometry and indoor radon were measured applying the method of adsorption on activated charcoal. Possible correlations...
Go to contribution page -
Dr Terézia Eckertová (FMPH CU in Bratislava)09/09/2024, 14:40Radon - information carrier, radonometry, radon as a tracer gasOral presentation
Radon is a natural radioactive gas released from the soil as the result of 226Ra decay. Although, together with its short-lived decay products, it is monitored mainly in a purpose of radiation protection, in research can apply as a potential tracer of various natural processes. Carbon dioxide, on the other hand is a stable gas, but classified as a greenhouse gas with a key role in a climate...
Go to contribution page -
Dr Jovana Knežević Radić (University of Novi Sad, Faculty of Sciences, Department of Physics, Trg Dositeja Obradovića 4, 21000 Novi Sad)09/09/2024, 14:50Methods of measurement for both radon and thoron - devices, metrological aspectsPoster
The arsenic concentrate was used in the production of high-purity zinc (99.99%) according to hydrometallurgical process. This study analyzed arsenic concentrate from the former Lojane mine in North Macedonia, which was used in the chemical industry Zorka Šabac, Serbia. The activity concentrations of 226Ra in 15 samples of arsenic concentrate, which were necessary for assessing indoor radon...
Go to contribution page -
MISBAH JAVED (Università degli studi della Campania Luigi Vanvitelli)09/09/2024, 15:00Methods of measurement for both radon and thoron - devices, metrological aspectsOral presentation
The aim is to estimate the adsorption capacity of Radon and Thoron on zeolites in order to reduce their activity in indoor environments and/or to develop a new measurement method. From a chemical point of view, Radon (Rn-222) and Thoron (Rn-220) are equivalent, therefore the adsorption process is similar. In our experiment we used thoron from the decay chain of Th-232, which often plays an...
Go to contribution page -
Francesca Tugnoli (BfS)09/09/2024, 15:40Methods of measurement for both radon and thoron - devices, metrological aspectsOral presentation
Rn-220 (thoron) can be found in indoor spaces in different concentrations when Th-232 is contained in the building materials. Because of its effects on human health, according to the Council directive 2013/59/EURATOM, thoron must be taken into consideration when determining the corresponding occupational and public exposure.
Nonetheless, thoron is often neglected in radiation assessment as...
Go to contribution page -
Katarzyna Wołoszczuk (Central Laboratory for Radiological Protection)09/09/2024, 16:00National programs and projectsOral presentation
In 2024, indoor radon concentration measurements were conducted in 59 kindergartens situated in southern Poland. The objective of the measurements was to ascertain the extent of workers' exposure to radon and its progeny. The measurement method employed was that of track detectors. In each room in the basement or on the ground floor, which were classified as workplaces, three detectors were...
Go to contribution page -
Mr Miroslav Vanek (Department of Environmental Engineering, Faculty of Ecology and Environmental Sciences, Technical University in Zvolen)09/09/2024, 16:20Methods of measurement for both radon and thoron - devices, metrological aspectsPoster
Education of students about radon can rise awareness on this topic in lay public. Experience is the best teacher, therefore teaching about radon is best supplemented by radon measurement. Didactic radon measurement method based on analysis of digital CR-39 detector image has been used succesfully in order to familiarize students with basic principles of SSNTD and radon. In the experiment,...
Go to contribution page -
Mr Karel Jilek (SURO v.v.i. Praha , CZ)09/09/2024, 16:30Methods of measurement for both radon and thoron - devices, metrological aspectsOral presentation
In March-April 2023, an international comparison of instruments for measuring radon, thoron and their short-lived decay products in their mixed field was organized at the SURO Prague. Eight national institutions participated in the comparison provided both continuous monitors and passive integral detectors.After the introduction of measurement conditions and exposure facility, the key results...
Go to contribution page -
Katerina Navratilova Rovenska (National Radiation Protection Institute (SURO))09/09/2024, 16:50Radon in civil engineeringOral presentation
In the framework of the RadoNorm WP 5.4 project, an international comparison of radon activity concentration, equilibrium equivalent activity concentration total and unattached fraction was held at the Historic Silver mine in the city of Tarnowskie Góry in Poland from 20th to 23rd of February, 2024.
Go to contribution page
Comparison measurement of continuous monitors in laboratory conditions in mixed fields of...