Published 2006 | Version v1
Journal article Metadata-only

Natural radioactivity and evaluation of effective dose equivalent of granites in Turkey

Creators

  • 1. Turkish Atomic Energy Authority TAEA, Cekmece Nuclear Research and Training Center, P. K. 1 Ataturk Airport, 34149 Istanbul (Turkey)

Description

Annual effective dose equivalent due to natural gamma radiation from 238U, 232Th and 40K have been evaluated from granites in Turkey. Forty samples were taken for spectrometric analysis. Specific concentrations of 238U, 232Th and 40K in granite samples were determined. Spectroscopy system was used with 1.8 keV (FWHM) coaxial high purity germanium (HPGe) detector. Average values of concentrations of 238U, 232Th and 40K were detected at 15.85, 33.76 and 359 Bq kg-1, respectively. The average value of radon varies from 0.073 to 0.185 Bq m-2 h -1 exhalation depends on the specific concentration of uranium. The dose rate due to this highest activity which have been evaluated by a Monte Carlo transport calculations does not exceed 0.4 mSv a-1. (authors)

Availability note (English)

Available from doi: http://dx.doi.org/10.1093/rpd/ncl028

Additional details

Identifiers

DOI
10.1093/rpd/ncl028;

Publishing Information

Journal Title
Radiation Protection Dosimetry
Journal Volume
121
Journal Issue
3
Journal Page Range
p. 325-329
ISSN
0144-8420

INIS

Country of Publication
United Kingdom
Country of Input or Organization
France
INIS RN
44017092
Subject category
S54: ENVIRONMENTAL SCIENCES; S61: RADIATION PROTECTION AND DOSIMETRY;
Descriptors DEI
BACKGROUND RADIATION; DOSE EQUIVALENTS; DOSE RATES; EVALUATION; EXHALATION; GAMMA RADIATION; GRANITES; HIGH-PURITY GE DETECTORS; KEV RANGE 01-10; MONTE CARLO METHOD; NATURAL RADIOACTIVITY; POTASSIUM 40; RADON; SILICON OXIDES; SPECTROSCOPY; THORIUM 232; TURKEY; URANIUM 238
Descriptors DEC
ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; ASIA; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; CALCULATION METHODS; CHALCOGENIDES; CLEARANCE; DEVELOPING COUNTRIES; ELECTROMAGNETIC RADIATION; ELECTRON CAPTURE RADIOISOTOPES; ELEMENTS; ENERGY RANGE; EVEN-EVEN NUCLEI; EXCRETION; FLUIDS; GASES; GE SEMICONDUCTOR DETECTORS; HEAVY NUCLEI; IGNEOUS ROCKS; IONIZING RADIATIONS; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; KEV RANGE; LIGHT NUCLEI; MEASURING INSTRUMENTS; MIDDLE EAST; NANOSECONDS LIVING RADIOISOTOPES; NONMETALS; NUCLEI; ODD-ODD NUCLEI; OXIDES; OXYGEN COMPOUNDS; PLUTONIC ROCKS; POTASSIUM ISOTOPES; RADIATION DETECTORS; RADIATIONS; RADIOACTIVITY; RADIOISOTOPES; RARE GASES; ROCKS; SEMICONDUCTOR DETECTORS; SILICON COMPOUNDS; SPONTANEOUS FISSION RADIOISOTOPES; THORIUM ISOTOPES; URANIUM ISOTOPES; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
16 refs