Electronic dose conversion technique using a NaI(Tl) detector for assessment of exposure dose rate from environmental radiation

An electronic dose conversion technique to assess the exposure dose rate due to environmental radiation especially from terrestrial sources was developed. For a 2x2 inch cylindrical NaI(T1) scintillation detector, pulse-height spectra were obtained for gamma-rays of energy up to 3 MeV by Monte Carlo simulation. Based on the simulation results and the experimentally fitted energy resolution, dose conversion factors were calculated by a numerical decomposition method. These calculated dose conversion factors were, then, electronically implemented to a developed dose conversion unit (DCU) which is a microprocessor-controlled single channel analyzer (SCA) with variable discrimination levels. The simulated spectra were confirmed by measurement of several monoenergetic gamma spectra with a multichannel analyzer (MCA). The converted exposure dose rates from the implemented dose conversion algorithm in the DCU were also evaluated for a field test in the vicinity of the nuclear power plant at Kori as well as for several standard sources, and the results were in good agreement with separate measurement by a high pressure ionization chamber (HPIC) within a 6.4 % deviation.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
1998-06
Language
ENG
Citation

IEEE TRANSACTIONS ON NUCLEAR SCIENCE, v.45, no.3, pp.981 - 985

ISSN
0018-9499
URI
http://hdl.handle.net/10203/1747
Appears in Collection
NE-Journal Papers(저널논문)
Files in This Item
1998_Electronic Dose Conversion Technique.pdf(475.46 kB)Download
  • Hit : 438
  • Download : 518
  • Cited 0 times in thomson ci
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡClick to seewebofscience_button
⊙ Cited 9 items in WoSClick to see citing articles inrecords_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0