A simple method for measuring thoron spatial distributions.

Area of Science:

• Environmental Science
• Radiation Detection

Background:

• Radon-220 (220Rn) is a naturally occurring radioactive gas.
• Understanding its spatial distribution is crucial for assessing potential health risks in indoor environments.

Purpose of the Study:

• To present a simple and effective method for measuring the spatial distribution of 220Rn.
• To demonstrate the method's validity using solid-state detectors.

Main Methods:

• Utilizing solid-state detectors to measure alpha particles from 216Po, a progeny of 220Rn.
• Depositing progeny directly onto the detector surface at varying distances from a 220Rn source.
• Comparing experimental results with finite-element calculations under controlled diffusion conditions.

Main Results:

• Successfully measured the spatial distribution of 220Rn using the described method.
• Experimental data aligned well with finite-element calculations, confirming the method's validity.
• The technique provides a straightforward approach for environmental 220Rn monitoring.

Conclusions:

• The presented method offers a reliable and simple way to determine 220Rn spatial distribution.
• This technique is suitable for monitoring working and living environments.
• The findings support the use of solid-state detectors for radon progeny analysis.