A high-resolution map of gamma dose rates in Cluj County, Romania using LiF:Mg,Cu,P detectors

Radiat Prot Dosimetry. 2014 Nov;162(1-2):14-9. doi: 10.1093/rpd/ncu209. Epub 2014 Jul 9.

Abstract

Outdoor gamma radiation measurements in Cluj County, Romania have been performed using solid-state thermoluminescent detectors in order to develop a high-resolution database for natural gamma dose rates. Integrated measurements have been carried out for an exposure time of minimum 3 weeks. According to European Union requirements, the territory has been divided into 69 grids of 10 × 10 km. The cells were monitored using LiF:Mg,Cu,P detectors. For two locations the results were 136 ± 7 and 150 ± 7 nGy h(-1), respectively. These results can be explained by the existent geological substrate. The values ranged from 56 ± 4 to 150 ± 7 nGy h(-1), with an average value of 91 ± 2 nGy h(-1), being in agreement with the 2008 United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) Report. A high-resolution map of gamma dose rates in Cluj County is presented for the first time.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Background Radiation
  • Copper / analysis*
  • Fluorides / analysis*
  • Gamma Rays*
  • Humans
  • Lithium Compounds / analysis*
  • Magnesium / analysis*
  • Phosphorus / analysis*
  • Radiation Dosage
  • Radiation Monitoring / instrumentation*
  • Radiation Monitoring / methods
  • Romania
  • Thermoluminescent Dosimetry / instrumentation*
  • Thermoluminescent Dosimetry / methods

Substances

  • Lithium Compounds
  • lithium fluoride
  • Phosphorus
  • Copper
  • Magnesium
  • Fluorides