Vol.4, No 1, 2006 pp. 93 - 100
UDC 53+504.055

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INDOOR RADON MEASUREMENTS BY NUCLEAR TRACK DETECTORS:
APPLICATIONS IN SECONDARY SCHOOLS
R. Banjanac¹, A. Dragić¹, B. Grabež¹, D. Joković¹, 
D. Markushev¹,B. Panić¹, V. Udovičić¹, I. Aničin^2
1Institute of Physics, PO Box 57, 11001 Belgrade-Zemun, Serbia and Montenegro
²Faculty of Physics, University of Beograd, 11000 Beograd, Serbia and Montenegro

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Abstract. Indoor radon measurements by nuclear track detectors and application of the method in secondary schools in Serbia were performed in the spring 2004. Thirty detectors (type CR-39) were distributed to high school teachers in several cities in Serbia. After three months of the detectors exposure, they were sent back to the Low-Level Laboratory, Institute of Physics, Belgrade. After exposure, the CR-39 detectors were etched in a 6N NaOH at 700C  for 3 hours. The tracks were counted by the semi-automatic track-counting system. The preliminary results are presented in this paper.
Key words:  Radon, nuclear track detectors.

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MERENJE RADONA ČVRSTIM DETEKTORIMA TRAGOVA:
PRIMENA U SREDNJIM ŠKOLAMA U radu je opisan metod merenja radona čvrstim detektorima tragova. Metoda je pogodna za simultano merenje na velikom broju lokacija što omogućava mapiranje radona. Urađen je probni eksperiment tako što je profesorima u više mesta u Srbiji podeljen određen broj detektora tipa CR-39. Detektori su eksponirani u periodu od tri meseca (proleće 2004. god.) na različitim lokacijama u nekoliko gradova u Srbiji. Nakon toga su poslati u Niskofonsku laboratoriju Instituta za fiziku, Zemun gde je izvršen hemijski tretman i analiza eksponiranih i razvijenih detektora. Preliminarni rezultati su prikazani u radu.