Vol. 3, 2018

Original research papers



Mehmet Erdogan, Kaan Manisa, Hasan Bircan, İbrahim Çevik, Nesli Bingöldağ, Recep Biyik, Veysel Zedef

Pages: 89–93

DOI: 10.21175/RadProc.2018.19

The radiation exposure for people and all living things is inevitable. Most of these exposures are due to natural sources. Terrestrial and cosmic radiation sources are the most important contribution to these exposures which originated from the fractionation of U-238, Th-232, gamma radiation of K-40 and high-energy cosmic particles incident on the earth’s atmosphere. The main contribution to these exposures comes from terrestrial sources. Terrestrial radionuclides are found in various concentrations in the crust of the earth depending on geological conditions of the region. They also cause exposure risks externally due to their gamma-ray emissions. This study assesses the terrestrial and cosmic radiation dose rates from the naturally occurring radionuclides in the region of Niğde province of Turkey. The measurements were performed on the surface soil using NaI(Tl) scintillation type gamma-ray detector. The external annual effective doses and cancer risk for people living in the region are also calculated from such terrestrial and cosmic gamma radiation dose rates for each individual.
  1. Sources and effects of ionizing radiation, vol. 1, Annex B, UNSCEAR, New York (NY), USA, 2000, pp. 84 – 154.
    Retrieved from: http://www.unscear.org/docs/publications/2000/UNSCEAR_2000_Report_Vol.I.pdf;
    Retrieved on: Aug. 10, 2018
  2. A. C. Demirkesen, “Quantifying geological structures of the Niğde province in central Anatolia, Turkey using SRTM DEM data,” Environ. Geol., vol. 56, no. 5, pp. 865 – 875, Jan. 2009.
    DOI: 10.1007/s00254-008-1187-2
  3. H. Baş, N. Poyraz, D. Jung, “Ulukişla-çamardi (Niğde) magmatîtlerînin petrografisi ve jeokimyasi,” Türkiye Jeoloji Bülteni, vol. 35, pp. 71 – 89, Aug. 1992. (H. Baş, N. Poyraz, D. Jung, “Petrography and geochemistry of the Ulukışla-Çamardı (Niğde) magmatites,” Geol. Bull. Turkey, vol. 35, pp. 71 – 89, Aug. 1992.)
    Retrieved from: http://www.jmo.org.tr/resimler/ekler/e2eec9ca19c0767_ek.pdf?dergi=TURKIYEJEOLOJIBULTENI;
    Retrieved on: Aug. 10, 2018
  4. RadEye™ NBR High Sensitivity Gamma Radiation Monitor, Fisher Scientific, Pittsburg (PA), USA, 2018.
    Retrieved from: https://www.fishersci.com/shop/products/thermo-scientific-radeye-nbr-high-sensitivity-gamma-radiation-monitor-radeye-nbr-high-sensitivity-gamma-radiation-monitor/19155223;
    Retrieved on: Jun. 12, 2018
  5. M. Boutillon, A. M. Perroche-Roux, “Re-evaluation of the W value for electrons in dry air,” Phys. Med. Biol., vol. 32, no. 2, pp. 213 – 219, Apr. 1987.
    DOI: 10.1088/0031-9155/32/2/005
  6. Turkish statistical institute official web page, Turkish statistical institute, Ankara, Turkey, 2018.
    Retrieved from: www.turkstat.gov.tr;
    Retrieved on: Jun. 12, 2018
  7. 1990 recommendations of the international commission on radiological protection, ICRP Publication 60, ICRP, Ottawa, Canada, 1990.
    PMid: 2053748
  8. S. Luevano-Gurrola et al., “Lifetime Effecttive Dose Assesment Based on Background Outdoor Gamma Exposure in Chihuahua City, Mexico,” Int. J. Environ. Res. Public Health, vol. 12, no. 10, pp. 12324 – 12339, Oct. 2015.
    DOI: 10.3390/ijerph121012324
    PMid: 26437425
    PMCid: PMC4626971
  9. L. Sahin et al., “Assessment of radiological hazard parameters due to natural radioactivity in soils from granite-rich regions in Kütahya province, Turkey,” Isot. Environ. Health Stud., vol. 53, no. 2, pp. 212 – 221, May 2017.
    DOI: 10.1080/10256016.2016.1207640
    PMid: 27465510
  10. Y. Kobya, H. Taskin, C. M. Yesilkanat, U. Cevik, “Evaluation of outdoor gamma dose rate and cancer risk in Artvin province, Turkey,” Hum. Ecol. Risk Assess., vol. 21, no. 8, pp. 2077 – 2085, Nov. 2015.
    DOI: 10.1080/10807039.2015.1017876
  11. M. Erdogan, K. Manisa, “Assesment of Outdoor Terrestrial Gamma Dose Rates in the Konya-Ilgın-Çavuşçu Lignite Deposit (Turkey),” Süleyman Demirel University Journal of Science, vol. 11, no. 2, pp. 89 – 93, Nov. 2016.
    Retrieved from: http://dergipark.gov.tr/download/article-file/274645;
    Retrieved on: Aug. 10, 2018
  12. A. Eslami et al., “Outdoor gamma radiation measurment in order to estimate the annual effective dose and excess lifetime cancer risk for residents of Tehran Iran,” J. Air Pollution and Health, vol. 1, no. 4, pp. 243 – 250, Dec. 2016.
    Retrieved from: http://japh.tums.ac.ir/index.php/japh/article/view/65/37;
    Retrieved on: Aug. 10, 2017
  13. A. T. Ramli, N. H. Apriantoro, H. Wagiran, “Assessment of radiation dose rates in the high terrestrial gamma radiation area of Selama district, Perak, Malaysia,” Appl. Phys. Res.,vol. 1, no. 2, pp. 45 – 52, Nov. 2009.
    DOI: 10.5539/apr.v1n2p45