Systematic error in 238U decay chain radionuclides measurements due to 222Rn emanation from reference materials

Tudyka, Konrad; Poręba, Grzegorz; Szymak, Agnieszka; Rocznik, Joanna; Pluta, Julia; Schüler, Tim; Kolb, Thomas; Murray, Andrew

doi:10.1016/j.measurement.2021.109893

Cited by 4 publications

(2 citation statements)

References 26 publications

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“…The samples were placed in 100 mL screw‐capped sample containers with their mouths closed to prevent air entry, labeled, and weighed with a precision balance. It was kept for about 30 days to form a radioactive equilibrium between 226 Ra‐ 222 Rn 38 …”

Section: Methodsmentioning

confidence: 99%

“…It was kept for about 30 days to form a radioactive equilibrium between 226 Ra-222 Rn. 38 Subsequently, each sample was counted for about 86,400 s using a high-purity germanium detector (HPGe) which is located at Akdeniz University in Türkiye. Obtained gamma-ray spectra were analyzed using the MC 2 Analyzer program (MC 2 Analyzer, 39 ).…”

Section: Radiological Parameters Unitmentioning

confidence: 99%

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Physicochemical properties and radiological hazards evaluations of some inorganic materials used in soilless agriculture

Eke,

Ozaydin Ozkara

2023

Env Prog and Sustain Energy

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This study aims to examine the physicochemical and radiological properties of some inorganic materials which are perlite, vermiculite, pumice, rock wool, zeolite, expanded clay aggregate, volcanic tuff, and sepiolite used in soilless agriculture. Water saturation, pH, electrical conductivity, calcium carbonate equivalent, available potassium, available phosphorus, and organic matter analyses were implemented for inorganic materials. The elemental contents of the components for studied inorganic materials were obtained using inductively coupled plasma‐optical emission spectrometry (ICP‐OES). Furthermore, natural and artificial radionuclides of studied inorganic materials were calculated using gamma‐ray spectrometry. The pumice has the highest 226Ra activity concentration, and the zeolite has the highest 232Th and 40K activity concentrations. The 137Cs activity concentration is the maximum for perlite and it is the minimum for expanded clay aggregate. The zeolite has the highest radiological hazard parameters whereas those are the smallest for the rock wool. The Fe, Na, B, Ca, K, Si, P, S, and Mn are the primary components of the inorganic materials used in soilless agriculture. Consequently, this study is contributed to environmental and health problems of livings. In the future, transferred radionuclides from plant to livings assessment can be carried out for these inorganic materials used in soilless agriculture.

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Section: Methodsmentioning

confidence: 99%

Section: Radiological Parameters Unitmentioning

confidence: 99%

Physicochemical properties and radiological hazards evaluations of some inorganic materials used in soilless agriculture

Eke,

Ozaydin Ozkara

2023

Env Prog and Sustain Energy

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A new fast screening method for estimating building materials hazard indices with correlated inputs

Rocznik,

Pluta,

Tudyka

et al. 2023

J Radioanal Nucl Chem

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In this work we investigate a new fast screening method for estimation of chosen hazard indices (HI) using correlated inputs dedicated for small 3.00 g samples using a novel μDOSE. The system detects α and β particles separately, along with 220Rn/216Po, 219Rn/215Po, 212Bi/212Po and 214Bi/214Po decay pairs. Four separate decay pairs along with α and β particle count rates are used to quantify decay chains. The excess β count rates is used to quantify the 40K radioactivity. This provides radionuclide estimates that are correlated—and this correlation is taken into account in calculating hazard indices with their corresponding uncertainties. Calculated hazard indices are verified against state-of-the-art High Resolution Gamma Spectrometry (HRGS) equipped with a High Purity Germanium (HPGe) detector manufactured by Canberra. This research shows that results obtained with the μDOSE system correspond to the results obtained with HRGS and when the activity correlation is taken into account the HI uncertainties are similar in value for both methods.

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μDOSE+: Environmental radioactivity and dose rate measurement system with active shielding boosted by machine learning

Tudyka,

Kłosok,

Gosek

et al. 2024

Measurement

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Systematic error in 238U decay chain radionuclides measurements due to 222Rn emanation from reference materials

Cited by 4 publications

References 26 publications

Physicochemical properties and radiological hazards evaluations of some inorganic materials used in soilless agriculture

Physicochemical properties and radiological hazards evaluations of some inorganic materials used in soilless agriculture

A new fast screening method for estimating building materials hazard indices with correlated inputs

μDOSE+: Environmental radioactivity and dose rate measurement system with active shielding boosted by machine learning

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