Doğu Karadeniz Bölgesinde kozmik ışın kaynaklı yıllık etkin doz dağılımının belirlenmesi

Bu çalışmada doğal radyasyonun önemli bir kısmını oluşturan kozmik ışın kaynaklı yıllık etkin doz hızı dağılımı, Doğu Karadeniz Bölgesindeki üç il için (Artvin, Rize ve Trabzon) 2 200200m ’lik mekânsal çözünürlükte haritalandırılmıştır. Kozmik ışın kaynaklı yıllık etkin doz oranı hesaplamaları, Excel tabanlı çalışan bir program olan EXPACS ile enlem ve rakım değişimlerine bağlı olarak gerçekleştirilmiştir. Ayrıca çalışma alanında yaşayan nüfusun kozmik radyasyondan etkilenme seviyeleri de tespit edilmiştir. Çalışma alanının tamam için, Kozmik ışından kaynaklanan yılık etkin doz oranının ortalaması 0.65 mSv y-1 ve değişim aralığı (0.33-1.72) mSv y-1 olarak hesaplanmıştır. Çalışma alanının geneli için yıllık kollektif etkin doz hızı ise yaklaşık 508 insan-Sv y-1 olarak belirlenmiştir. Ayrıca kozmik radyasyondan kaynaklanan kişi başı yılık etkin doz, sırasıyla Artvin, Rize ve Trabzon için 449 1  Sv y , 376 1  Sv y ve 370 1  Sv y olarak tespit edilmiştir.

Determination of the annual effective dose distribution due to cosmic ray exposure of the Eastern Black Sea Region, Turkey

In this study, annual effective dose rate distribution due to cosmic radiation, which constitutes animportant part of natural radiation, was mapped in 2 200 200m  spatial pixels for three provinces in the EasternBlack Sea region (Artvin, Rize and Trabzon). Cosmic ray-induced annual effective dose calculations wereperformed based on latitude and altitude changes with EXPACS, an excel-based program. Besides, the effectof cosmic radiation on the population living in the study area was determined. For the entire study area, it wascalculated the average effective dose rate from Cosmic radiation as 0.65 mSv y-1 and range as (0.33-1.72) mSvy-1. The average annual collective effective dose rate was determined approximately 508 person-Sv y-1. Besides,the population-weighted average annual effective dose rates were obtained as 449  Sv y 1  , 376 1  Sv y and370 1  Sv y for Artvin, Rize and Trabzon provinces, respectively.

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