İSTANBUL-SARIYER İLÇESİNDEKİ BAZI TOPRAK ÖRNEKLERİNDE CS-137 KONSANTRASYONUN BELİRLENMESİ

Yıl 2019, Cilt: 5 Sayı: 1, 29 - 39, 30.06.2019

Osman Günay , Canel Eke

https://doi.org/10.34186/klujes.564877

Öz

Çevresel
radyoaktivite genellikle doğal radyasyon ve yapay radyasyon olarak iki kısımda
oluşmaktadır. Yapay radyasyon; nükleer silah denemeleri, nükleer kazalar,
nükleer tıp uygulamaları ve parçacık hızlandırıcılar sonucunda meydana
gelmektedir. 2011 yılında Fukushima Daiichive 1986 yılında Çernobil’ de meydana
gelen nükleer santral kazaları sebebiyle çevreye yoğun miktarda yapay
radyoaktif nükleotitler saçılmıştır. Çernobil nükleer kazası İstanbul’ a yakın
olduğu için, radyoaktif serpintiden etkilenme olasılığı yüksektir. Bu çalışma
İstanbul’un Sarıyer ilçesinde bazı toprak örneklerinde yapay radyoaktif madde
olan Cs-137 konsantrasyonun belirlenmesi amacıyla yapılmıştır. Çalışma
bölgesinde 12 örnekleme noktası belirlenmiş, spektroskopik ölçümler, yüksek
saflıkta germanyum detektör (HPGe) ile yapılmıştır. Cs-137 radyoaktivite
konsantrasyonları 1.70 ± 0,72 Bqkg^-1 ile 16.43±1.26Bqkg^-1
arasında değiştiği bulunmuştur.

Anahtar Kelimeler

Cs-137, Toprak, Sarıyer

Kaynakça

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