Determination of Outdoor Absorbed Gamma Dose Rates of Kahramanmaraş Province, Turkey

Yıl 2019, Cilt: 40 Sayı: 1, 102 - 107, 22.03.2019

Muhammet Karataşlı

https://doi.org/10.17776/csj.461485

Cited By: 4

Öz

Outdoor absorbed gamma dose rates were measured in 118 different regions
at a height of 1 m above the ground in the gonad (genitals) level in humans in
Kahramanmaraş province and its vicinity using Eberline portable detector.
Outdoor gamma dose rates varied from 32.7 nGy/h and 96.4 nGy/h with an
arithmetic average of 64.8 nGy/h. The average value of the corresponding annual
effective dose rate was estimated as 79.5 µSv/y. Lifetime cancer risk
values estimated according to ICRP 103, BEIR VII and ICRP 60 were found to be
0.032, 0.036 and 0.040 respectively.

Anahtar Kelimeler

effective dose, gamma dose, Cancer risk

Türkiye’nin Kahramanmaraş İlinde Soğurulan Gama Doz Seviyesinin Belirlenmesi

Öz

Kahramanmaraş
İli ve çevresinde 118 farklı bölgede açık havada soğurulan gama radyasyon doz
düzeyini belirlemek için insanlarda gonad (üreme organları) hizasında yerden
yaklaşık 1m yükseklikte Eberline marka portatif dedektörle ölçümler alınmıştır.  Her bölgede ölçümler alınırken 5 metre
yarıçapında üç farklı okuma yapılmış ve bu üç değerin ortalaması alınarak her
bir ölçüm bölgesi için gama doz değerleri belirlenmiştir. Kahramanmaraş ili
geneli için gama dozu ölçümlerinin değeri 32,7 nGy/s ile 96,4 nGy/s arasında
bulunmuş olup,  aritmetik ortalaması 64,8
nGy/s olarak hesaplanmıştır. Soğurulan gama radyasyon dozu kullanılarak
hesaplanan yıllık etkin doz eşdeğerinin ortalama değeri ise 79,5 µSv/y olarak
hesaplanmıştır. Kahramanmaraş ilinde yaşam boyu kanser risk değerleri ICRP 103,
BEIR VII ve ICRP 60 için yüzdelik ortalamaları sırasıyla 0,032, 0,036 ve 0,040
olarak bulunmuştur. Elde edilen sonuçlarla Türkiye’de diğer illerde yapılan
benzer çalışmaların sonuçları ve dünya ortalamaları ile karşılaştırılmıştır.

Anahtar Kelimeler

Kanser riski, gama doz, etkindoz

Kaynakça

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