Vol.4, No 1, 2006 pp. 11 - 20
UDC 53+504.055
RADON INDOOR CONCENTRATIONS AND ACTIVITY
OF RADIONUCLIDES IN BUILDING MATERIALS IN
SERBIA
D. Popović1, D. Todorović2
1Department of Physics and Biophysics,
Faculty of Veterinary Medicine,
University of Belgrade, Bul.JA 18, 11000 Belgrade, Serbia & Montenegro,
draganap@vet.bg.ac.yu
2Environmental and Radiation Protection
Laboratory, Institute Of Nuclear Sciences Vinča,
P.O.Box 522, 11001 Belgrade, Serbia & Montenegro
Abstract. The paper presents the results of radon indoor concentrations
measurements in homes and public institutions (kindergardens) in Belgrade,
as well as the results of the radionuclides content determination in building
materials from Serbia, during the eighties and up to the mid-nineties of
the 20th century. The activity of the radionuclides was determined on an
HPGe detector (ORTEC, relative efficiency 20%) by standard gamma spectrometry.
Radon indoor concentrations on the grab samples of air were determined
by alpha scintillation technique (Lucas scintilation cell with ZnS/Ag).
Mean effective dose equivevalents of radon and its progenies in closed
space were estimated at 0.074 mSv for radon and 1.22 mSv for its short-lived
daughters, in total 1.3 mSv.
Key words: radon, radioactivity, building materials, gamma
spectrometry.
MERENJA KONCENTRACIJE RADONA U ZATVORENOM
PROSTORU I AKTIVNOSTI RADIONUKLIDA
U GRAĐEVINSKIM MATERIJALIMA NA TERITORIJI
REPUBLIKE SRBIJE
U radu se daju rezultati odredjivanja sadržaja radona u vazduhu u zatvorenom
prostoru u stambenim i javnim objektima (dečijim vrtićima) u Beogradu,
kao i rezultati odredjivanja sadržaja radionuklida u gradjevinskim materijalima
sa teritorije Srbije, tokom osamdesetih i do sredine devedesetih godina
20.veka. Aktivnost radionuklida odredjivana je na HPGe detektoru (Ortec,
relativna efikasnost 20%) standardnom metodom spektrometrije gama zračenja.
Koncentracije radona u vazduhu odredjivene su alfa scintilacionom tehnikom,
pomoću Lukasove scintilacione ćelije sa ZnS/Ag (IJŠ, Ljubljana). Na osnovu
mernih podataka procenjena je srednja efektivna ekvivalenta doza za radon
i njegove kratkoživeće potomke u zatvorenom prostoru: 0.074 mSv i 1.22
mSv, respektivno, odnosno ukupna doza od 1.3 mSv.
