A radiological survey of the Eğrigöz granitoid, Western Anatolia/Turkey

A radiological survey of the granitoid areas throughout Western Anatolia was conducted during 2007-14. As a part of this radiological survey, this article presents results obtained from Eğrigöz pluton, which lies in the northeastern region of Western Anatolia. In the investigated area, the activity...

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Bibliographic Details
Published in:Radiation protection dosimetry 2015-06, Vol.164 (4), p.510-518
Main Authors: Canbaz Öztürk, B, Yaprak, G, Çam, N F, Candan, O
Format: Article
Language:English
Subjects:
Air
Aluminum Compounds - chemistry
Aluminum Silicates - chemistry
Background Radiation
Ferrous Compounds - chemistry
Potassium Compounds - chemistry
Potassium Radioisotopes - analysis
Quartz - chemistry
Radon - analysis
Silicates - chemistry
Soil Pollutants, Radioactive - analysis
Spectrometry, Gamma
Thorium - analysis
Turkey
Zirconium - chemistry
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Summary:A radiological survey of the granitoid areas throughout Western Anatolia was conducted during 2007-14. As a part of this radiological survey, this article presents results obtained from Eğrigöz pluton, which lies in the northeastern region of Western Anatolia. In the investigated area, the activity measurements of the natural gamma-emitting radionuclides ((226)Ra, (232)Th and (40)K) in the granitic rock samples and soils have been carried out by means of the NaI(Tl) gamma-ray spectrometry system. The activity concentrations of the relevant natural radionuclides in the granite samples appeared in the ranges as follows: (226)Ra, 28-95 Bq kg(-1); (232)Th, 50-122 Bq kg(-1) and (40)K, 782-1365 Bq kg(-1), while the typical ranges of the (226)Ra, (232)Th and (40)K activities in the soil samples were found to be 7-184, 11-174 and 149-1622 Bq kg(-1), respectively. Based on the available data, the radiation hazard parameters associated with the surveyed rocks/soils are calculated. The corresponding absorbed dose rates in air from all those radionuclides were always much lower than 200 nGy h(-1) and did not exceed the typical range of worldwide average values noted in the UNSCEAR (2000) report. Furthermore, the data are also used for the mapping of the surface soil activity of natural radionuclides and the corresponding gamma dose rates of the surveyed area.
ISSN:0144-8420
1742-3406
DOI:10.1093/rpd/ncv327