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Updated: Jun 16, 2026
Measuring the Time-Evolution of Nanoscale Materials with Stopped-Flow and Small-Angle Neutron Scattering
Published on: August 6, 2021
Enhancing time-resolution for radon measurements using airflow-through scintillation cells based on a compartmental
Chao Zhao1, Gang Han1, Chongqing Hu1
1Shanghai Institute of Measurement and Testing Technology, 1500 Zhang-Heng Road, Shanghai 201203, China.
Abstract:
To overcome the time-resolution limitation inherent in the airflow-through scintillation cell method for radon measurement, this study introduces a compartmental model elucidating the behaviors of radon and its progeny within such cells. The computed results of the normalized equilibrium functions derived from the compartmental model, provide quantitative insights into the equilibrium progression of 222Rn and its progeny over time, substantiating the identified time-resolution limitation of 2-3 hours. Laboratory experiments confirm the efficacy of the proposed correction algorithm, showcasing its ability to surmount the time-resolution limitation and achieve a rapid response in radon measurement using airflow-through scintillation cells.
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