Measuring the radium-226 activity using a multidetector γ-ray coincidence spectrometer

Antović, Nevenka M.; Svrkota, Nikola

doi:10.1016/j.jenvrad.2009.06.003

Cited by 17 publications

(2 citation statements)

References 19 publications

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“…For the energy spectrum method, the detector system requires good stability, and it is challenging to achieve long-term stability for such system. The coincidence method is a common method to measure the radionuclide activity of simultaneously emitting several rays, which can effectively reduce the background, improve the signal-to-noise ratio and reduce the stability requirements of the measurement system (Ember et al, 2004;Vidmar et al, 2007;Antovic and Svrkota, 2009;Volkovitsky and Naudus, 2009;Tillett et al, 2017;Zhang et al, 2018). However, the disadvantages are the low coincidence efficiency and long measurement time.…”

Section: Introductionmentioning

confidence: 99%

Design of the Container for the Sampling and Detection Monitoring System of N-13 in Pressurized Water Reactor Primary Loop Water Leakage Based on the Coincidence Method

Zhao

Zhou

2019

Front. Energy Res.

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The N-13 coincidence method is an effective approach for monitoring the primary loop leakage in pressurized water reactors. The high coincidence efficiency and low background are crucial to achieving a lower limit of measurement for such a monitoring system. In this paper, we proposed four types of geometric designs of the sampling composing NaI(TI) detector. For varying container volumes (V), the detection efficiency (ε) of these containers was investigated through the Geant4 simulation and experimental measurement. The value of ε•V, which is a key combined parameter, was obtained accordingly. Finally, we obtained the optimal size of the suitable sampling and detection container for the coincidence method.

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Section: Introductionmentioning

confidence: 99%

Design of the Container for the Sampling and Detection Monitoring System of N-13 in Pressurized Water Reactor Primary Loop Water Leakage Based on the Coincidence Method

Zhao

Zhou

2019

Front. Energy Res.

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“…Radium is commonly measured using a various analytical procedures and equipments. The most common methods for determining radium isotopes are alpha spectrometry [1,2], gamma spectrometry [3][4][5], Cerenkov counting [6] and liquid scintillation counting [7][8][9][10][11][12][13][14]. Alpha spectrometry is the most sensitive technique and allows simultaneous measurement of α-emitting radium isotopes but it is difficult to isolate the radium from other alkaline earth metals [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Application of in-house method for determinationof radium isotopes in environmental samples usingthe Liquid Scintillation counting technique

Ariffin¹,

Mahmood²,

Mohamed³

2011

JASMI

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A method for determination of 226 Ra and 228 Ra in environmental samples using the α-β coincidence liquid scintillation counting (LSC) has been developed. Radium were preconcentrated from environmental samples by coprecipitation with BaSO 4 , then purified from others radionuclide interferences using the cation column exchange (Bio-Rad AG 50 W-X4 resin with 200 -400 mesh size and H + form) and operating in warm temperature which is between 70˚C -80˚C. Then, the Ba(Ra)SO 4 precipitate was filtered through the Millipore filter paper, dried and weighed to calculate chemical yield. The activity concentration of radium isotopes in mixture of liquid scintillation cocktails were measured using LSC after being stored for over 21 days to allow the growth of the progeny nuclides. The method has been validated with a certified reference material supplied by the International Atomic Energy Agency and reliable results were obtained. The radiochemical yields for radium were 59% -90% and recovery was 97% and 80% for 226 Ra and 228 Ra, respectively. Sixteen seawater and fish flesh samples collected in Kapar coastal water have been analyzed with the developed method. The obtained radium activity concentrations in seawater were in the range of 2.08 ± 0.82 mBq/L to 3.69 ± 1.29 mBq/L for 226 Ra and 6.01 ± 3.05 mBq/L to 17.07 ± 6.62 mBq/L for 228 Ra. Meanwhile, the activity concentrations of 226 Ra and 228 Ra in fish flesh were in the range of 11.82 ± 5. Bq/kg dry wt., respectively.

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Natural Radium and Radon Tracers to Quantify Water Exchange and Movement in Reservoirs

Smith

Swarzenski

Dimova

et al. 2011

Advances in Isotope Geochemistry

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Measuring the radium-226 activity using a multidetector γ-ray coincidence spectrometer

Cited by 17 publications

References 19 publications

Design of the Container for the Sampling and Detection Monitoring System of N-13 in Pressurized Water Reactor Primary Loop Water Leakage Based on the Coincidence Method

Design of the Container for the Sampling and Detection Monitoring System of N-13 in Pressurized Water Reactor Primary Loop Water Leakage Based on the Coincidence Method

Application of in-house method for determinationof radium isotopes in environmental samples usingthe Liquid Scintillation counting technique

Natural Radium and Radon Tracers to Quantify Water Exchange and Movement in Reservoirs

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