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Electronic dose conversion technique using a NaI(Tl) detector for assessment of exposure dose rate from environmental radiation
| Content Provider | Semantic Scholar |
|---|---|
| Author | Cho, Gyuseong Kim, Ho Kyung Woo, Heegon Oh, Gilhwan |
| Copyright Year | 1997 |
| Abstract | An electronic dose conversion technique to assess the exposure dose rate due to environmental radiation especially from terrestrial sources was developed. For a 2/spl times/2 inch cylindrical NaI(Tl) 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. |
| Starting Page | 407 |
| Ending Page | 411 |
| Page Count | 5 |
| File Format | PDF HTM / HTML |
| DOI | 10.1109/23.682692 |
| Volume Number | 45 |
| Alternate Webpage(s) | http://bml.pusan.ac.kr/Publication/PDF/IntCon/001_p407.pdf |
| Alternate Webpage(s) | https://doi.org/10.1109/23.682692 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
