Rhumel Nehrinin (Kuzeydoğu Cezayir) çökelti kümelerinde doğal radyonüklidlerin seviyeleri ve etkileri

Yıl 2018, Cilt: 39 Sayı: 2, 349 - 356, 29.06.2018

Ghania Bouhıla Fatima Benrachı Mourad Ramdhane

https://doi.org/10.17776/csj.360133

Cited By: 2

Öz

Boumerzoug nehri tortusunda (Rhumel nehrinin ana
kolu) doğal radyonüklidlerin aktivite konsantrasyonları, yüksek çözünürlüklü
HPGe detektörü kullanılarak ölçülmüştür. Örneklerin aktivite konsantrasyonları,
²²⁶Ra için 16,66±2,32 Bq/kg ile 43,48±4,03 Bq/kg arasında olup ortalama değer 26,64 ± 1,33 Bq/kg , ²³²Th için 20,01±1,98 Bq/kg ile 32,71±3,85 Bq/kg arasında
olup ortalama değer 25,95±1,46 Bq/kg, son olarak
⁴⁰K için 81,70±33,59 Bq/kg ile 259,20±38,80 Bq/kg arasında
olup ortalama değeri 164,50±11,30 Bq/kg’dir. Bu
değerler radyasyon tehlikesi endekslerini tahmin etmek için kullanılmıştır. Bu
tortuların kullanımına bağlı radyasyon riskini değerlendirmek için emilen doz
ve yıllık etkili doz değerlendirilmiştir.

Anahtar Kelimeler

Nehir çökeltisi, Doğal Radyoaktivite, HPGe Dedektörü, Radyasyon Tehlikesi

Levels and effects of natural radionuclides in sediment banks of Rhumel River (Northeast Algeria)

Öz

Activity
concentrations of natural radionuclides in Boumerzoug River sediment (the main
tributary of Rhumel river) have been measured using high resolution HPGe
detector. The activity concentrations of the samples were range from 16.66±2.32 Bq/kg to 43.48±4.03 Bq/kg with mean value of 26.64±1.33 Bq/kg for ²²⁶Ra, 20.01±1.98 Bq/kg to 32.71±3.85 Bq/kg with the mean value 25.95±1.46 Bq/kg for ²³²Th and 81.70±33.59 Bq/kg to 259.20±38.80 Bq/kg with the mean value
164.50±11.30 Bq/kg for ⁴⁰K. These values were used to
estimate the radiation hazard indices. The absorbed dose and annual effective
dose were evaluated to assess the radiation risk due to the use of these
sediments.

Anahtar Kelimeler

River sediment, Natural Radioactivity, HPGe Detector

Kaynakça

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