Standardization of 152Eu

Grigorescu, E.L.; Razdolescu, Anamaria Cristina; Sahagia, Maria; Luca, A.; Ivan, C.; Tanase, G.

doi:10.1016/s0969-8043(01)00227-5

Cited by 34 publications

(8 citation statements)

References 6 publications

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“…Efficiency of the detector was determined with a 152 Eu source with known activity. 152 Eu sources have been widely used for calibration and efficiency determination because of their large range of energies (122, 244, 344, 411, 443, 779, 964, 1112 and 1408 keV) with emission probabilities of 3-29% [19]. An ideal measuring geometry of cylindrical source (homogeneously distributed activity with constant volume and distance) was placed coaxially with the detector for the efficiency determination and the same procedure applied for the sample measurements.…”

Section: Methodsmentioning

confidence: 99%

Radioactivity in Kosovo Honey Samples

Dizman¹,

Hodolli²,

Kadiri³

et al. 2020

Pol. J. Environ. Stud.

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Section: Methodsmentioning

confidence: 99%

Radioactivity in Kosovo Honey Samples

Dizman¹,

Hodolli²,

Kadiri³

et al. 2020

Pol. J. Environ. Stud.

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“…Ef.iciency of the detector was determined with a 152 Eu source (Amersham Company, UK) of known activity. 152 used for calibration and ef.iciency determination due to their large range of energies (122, 244, 344, 411, 443, 779, 964, 1112 and 1408 keV) with emission probabilities of 3-29 % (27,28) . An ideal measuring geometry of cylindrical source (homogeneously distributed activity with constant volume and distance) was placed coaxially with the detector for the ef.iciency determination and the same procedure applied for the sample measurements.…”

Section: Experimental Methods For γ-Spectroscopymentioning

confidence: 99%

Determination of radioactivity levels of soil samples and the excess of lifetime cancer risk in Rize province, Turkey

Dizman¹,

Görür²,

Keser³

2016

IJRR

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Human beings are exposed to background radiation that stems both from natural and manmade sources. Natural background radiation, which is equivalent to 2.4 mSv per person, makes up approximately 80% of the total radiation dose a person is exposed in a year (1). Soil radionuclide activity concentration is one of the main determinants of the natural background radiation. Volcanic geographic structures as well as rocks that are rich in phosphate, granite and salt contain natural radionuclides like 238 U, 232 Th and 40 K. When rocks are disintegrated through natural processes, radionuclides are carried to the soil by rain and .lows (2). The natural radioactivity in soil comes from 226 Ra, 232 Th and from natural 40 K. Some other terrestrial radionuclides, including those of the 235 U series, 87 Rb, 138 La, 147 Sm and 176 Lu exist in nature but at such low levels that their contributions to the dose in the humans are small. Arti.icial radionuclides can also be present such as 137 Cs, resulting from fallout from weapons testing. 137 Cs is a .ission product which is formed through nuclear tests and accidents. The deposition of 137 Cs in soil is important since its half-life is 30.2 years and it has a gamma emission of 661 keV (3). The radiological

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“…The efficiency of the detector was determined with a 152 Eu source (Amersham Co., Amersham, UK) of known activity. 152 Eu sources have been widely used for calibration and efficiency determination because of their wide range of energies (122, 244, 344, 411, 443, 779, 964, 1112 and 1408 keV) with emission probabilities of 3–29% 9, 10. An ideal measuring geometry of cylindrical source (homogeneously distributed activity with constant volume and distance) was placed coaxially with the detector for the efficiency determination and the same procedure was applied for the sample measurements.…”

Section: Methodsmentioning

confidence: 99%