Radon in water measurements by sampling with sunflower oil

IF 1.6 3区工程技术 Q3 CHEMISTRY, INORGANIC & NUCLEAR

Applied Radiation and Isotopes Pub Date : 2025-02-24 DOI:10.1016/j.apradiso.2025.111752

S. Georgiev, V. Todorov, H. Stoycheva, K. Mitev

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引用次数: 0

Abstract

A novel method for measuring radon in water is proposed. This method involves sampling radon from water into sunflower oil and subsequently measuring the radon in the oil using either Cherenkov counting or Liquid Scintillation (LS) counting. The high partition coefficient of radon between oil and water enables radon preconcentration in the oil, significantly improving the Minimum Detectable Activity Concentration (MDAC) compared to direct Cherenkov or LS measurements in water. The estimated MDACs for the method are 0.20 Bq/l using Cherenkov counting and 0.04 Bq/l using gross alpha/beta LS counting.

The MDAC achieved with Cherenkov counting allows for radon-in-water measurements for the purposes of radiation protection, ecology, hydrology, and earth sciences without requiring LS cocktails.

The MDAC for LS counting facilitates radium-in-water measurements (via radon measurement) for radiation protection without chemical pretreatment of the water sample.

Additionally, the method enables direct estimation of the radon partition coefficient between water and oils. The partition coefficient of radon between sunflower oil and water at 20 °C is estimated at K_oil/w = 23.2(16).

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来源期刊

Applied Radiation and Isotopes 工程技术-核科学技术

CiteScore

3.00

自引率

12.50%

发文量

406

审稿时长

13.5 months

期刊介绍： Applied Radiation and Isotopes provides a high quality medium for the publication of substantial, original and scientific and technological papers on the development and peaceful application of nuclear, radiation and radionuclide techniques in chemistry, physics, biochemistry, biology, medicine, security, engineering and in the earth, planetary and environmental sciences, all including dosimetry. Nuclear techniques are defined in the broadest sense and both experimental and theoretical papers are welcome. They include the development and use of α- and β-particles, X-rays and γ-rays, neutrons and other nuclear particles and radiations from all sources, including radionuclides, synchrotron sources, cyclotrons and reactors and from the natural environment. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. Papers dealing with radiation processing, i.e., where radiation is used to bring about a biological, chemical or physical change in a material, should be directed to our sister journal Radiation Physics and Chemistry.