Radionuclide Measurement Using HPGe Gamma Spectrometry

Lichen and moss samples were collected from Russian Arctic areas (Kola Peninsula, Franz Josef Land and few other locations) in the 1990s. In 2020, 137Cs was determined by HPGe gamma spectrometry from these samples after which isotopes of Pu and U were radiochemically separated from the samples. Mass ratios 240Pu/239Pu and 235U/238U were determined by ICP-MS for utilizing the characteristic isotopic fingerprints of different nuclear events. The aim of the work was to survey radioactive contamination sources in terrestrial environment in Russian Arctic regions, which have not yet been completely explored in respect to anthropogenic isotopes and their origin in the environment.

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Thoron emanation and exhalation of Slovenian soils determined by a PIC detector-equipped radon monitor

Nukleonika ◽

10.1515/nuka-2016-0063 ◽

2016 ◽

Vol 61 (3) ◽

pp. 379-384 ◽

Cited By ~ 8

Author(s):

Jácint Jónás ◽

Zoltán Sas ◽

Janja Vaupotic ◽

Erika Kocsis ◽

János Somlai ◽

...

Keyword(s):

Health Risk ◽

Gamma Spectrometry ◽

Half Life ◽

Activity Concentration ◽

Soil Samples ◽

Radon Emanation ◽

Decay Products ◽

Radon Monitor ◽

Hpge Gamma Spectrometry ◽

Chamber Technique

Abstract The health risk from thoron (Rn-220) is usually ignored owing to its short half-life (55.6 s), but the generated thoron decay products can cause a significant dose contribution. In this study, altogether 51 Slovenian soil samples were investigated using an accumulation chamber technique to obtain information about thoron exhalation features. The obtained (massic) thoron exhalation results varied between 6.9 and 149 mBq·kg−1·s−1 (average: 55.2 mBq·kg−1·s−1). The Th-232 content was determined using HPGe gamma spectrometry. The Th-232 activity concentration ranged between 9.3 and 161.7 Bq·kg−1 (average: 64.6 Bq·kg−1). The thoron emanation features were also calculated from the obtained results (2.9 to 21.2% with an average of 8.6%). The thoron exhalation and emanation properties were compared with the radon exhalation and emanation features determined in a previous study. It was found that there was no correlation between the radon and thoron emanation features, according to the obtained data. This can be explained by the different Ra-224 and Ra-226 distributions in the soil grains. As a result, the thoron emanation factor cannot be predicted from radon emanation and vice versa.

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Full spectrum analysis with the non-negative least square constraint for laboratory HPGe gamma spectrometry

Journal of Radioanalytical and Nuclear Chemistry ◽

10.1007/s10967-019-06759-4 ◽

2019 ◽

Vol 322 (2) ◽

pp. 961-967 ◽

Cited By ~ 1

Author(s):

Mai Thanh Man ◽

Vu Ngoc Ba ◽

Dang Thi Thao My ◽

Dang Nguyen Phuong ◽

Truong Thi Hong Loan ◽

...

Keyword(s):

Gamma Spectrometry ◽

Spectrum Analysis ◽

Least Square ◽

Full Spectrum ◽

Hpge Gamma Spectrometry

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Broad Energy HPGe Gamma Spectrometry for Dose Rate Estimation for Trapped Charge Dating

Journal of Analytical Science & Technology ◽

10.5355/jast.2010.98 ◽

2010 ◽

Vol 1 (2) ◽

pp. 98-108 ◽

Cited By ~ 4

Author(s):

Jeong Hee Han

Keyword(s):

Dose Rate ◽

Gamma Spectrometry ◽

Rate Estimation ◽

Hpge Gamma Spectrometry ◽

Broad Energy ◽

Trapped Charge

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Radiological impact assessment of different building material additives

Journal of Radioanalytical and Nuclear Chemistry ◽

10.1007/s10967-021-07897-4 ◽

2021 ◽

Author(s):

E. Kocsis ◽

E. Tóth-Bodrogi ◽

A. Peka ◽

M. Adelikhah ◽

T. Kovács

Keyword(s):

Impact Assessment ◽

Gamma Spectrometry ◽

Building Material ◽

Activity Concentration ◽

Ionization Detector ◽

Radon Exhalation ◽

Naturally Occurring ◽

Effective Doses ◽

Radiological Impact ◽

Hpge Gamma Spectrometry

AbstractIn this study, samples of building material additives were analyzed for naturally occurring radioisotope activity such as uranium, radium, and radon. The radon exhalation and the annual effective doses, were also calculated. The activities of the samples, were determined using HPGe gamma spectrometry and ionization detector. The results were used to calculate dose values by using RESRAD BUILD code. The activity concentration of the samples ranges between 9–494 Bq/kg Ra-226, 1–119 Bq/kg Th-232 and 24–730 Bq/kg K-40. In conclusion the investigated samples can be used safely as building material additives as they do not pose a major risk to humans.

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