2019
DOI: 10.21608/absb.2019.67879
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Natural Radioactivity Assessment and the Associated Radiological Hazards for Beach Sand, Baltim Area, Egypt.

Abstract: Natural radioactivity of 238 U, 232 Th series and 40 K of black sand samples collected along El-Fanar and El-Nargess Beaches in Baltim area, north of the Nile Delta in Kafr El-Sheikh Governorate, were measured using a gamma-ray spectrometer with a high purity germanium (HPGe) detector. Results showed that the average activity concentrations of 238 U and 232 Th in El-Fanar Beach was significantly higher (73.22±5.1 and 70.8 ± 4.9 Bq kg -1 ) than El-Nargess Beach (31.91±2.2 and 25.95 ±1.8 Bq kg -1 ) respectively.… Show more

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“…Where 𝑁 𝐶 is the net counting of γ-ray (counts per second) corrected for background, 𝜏 is the detector efficiency of the specific γ-ray, 𝜂 is the absolute transition probability of γ-decay and M is the mass of the sample in Kg. The activity concentrations of 238 U and 232 Th were expressed in terms of ppm while 40 K was expressed in % as the specific activity of a sample containing 1 ppm by weight of 238 U is 12.35 Bq/Kg and of 232 Th is 4.06 Bq/Kg and 1% of weight of 40 K is 313 Bq/Kg [16,21,22].…”
Section: Sample Analysis and Activity Concentrationmentioning
confidence: 99%
“…Where 𝑁 𝐶 is the net counting of γ-ray (counts per second) corrected for background, 𝜏 is the detector efficiency of the specific γ-ray, 𝜂 is the absolute transition probability of γ-decay and M is the mass of the sample in Kg. The activity concentrations of 238 U and 232 Th were expressed in terms of ppm while 40 K was expressed in % as the specific activity of a sample containing 1 ppm by weight of 238 U is 12.35 Bq/Kg and of 232 Th is 4.06 Bq/Kg and 1% of weight of 40 K is 313 Bq/Kg [16,21,22].…”
Section: Sample Analysis and Activity Concentrationmentioning
confidence: 99%