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방사선방호 및 안전
- 2017년 10월호
[J Environ Radioact.] Environmental gamma radiation analysis for Ulsan city with the highest nuclear power plant density in Korea.울산과학기술대/ 이욱재, 김희령*
- 출처
- J Environ Radioact.
- 등재일
- 2017 Aug 25
- 저널이슈번호
- 178-179:177-185. doi: 10.1016/j.jenvrad.2017.08.015. [Epub ahead of print]
- 내용
Abstract
This study presents a real-time measurement-based rapid radiation distribution visualization system for radionuclide recognition, which can quickly scan a contaminated environment. The system combines a portable detector with a digital map and a program for quick data treatment. Radiation information at the measurement location is transferred between a detector and a laptop. It includes environmental and artificial components, specific radionuclides, and total radionuclides. After scanning the area, the radiation distributions are comprehensively displayed in 2D and 3D maps corresponding to the measured area, all in a few tens of seconds. The proposed method was verified using the standard 137Cs and 60Co sources. The gamma radiation distribution of the areas measured in Ulsan city, which included non-destructive testing and radioisotope treatment facilities, hospitals, transportation spots, and residential and commercial areas, showed that Ulsan city has maintained safe levels of radiation. The system performed well. In addition, it was found that this system could detect unexpected hot spots quickly in affected environments.
Author information
Lee U1, Bae JW2, Kim HR3.
1School of Mechanical and Nuclear Engineering, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, South Korea. Electronic address: dldnrwp@unist.ac.kr.2School of Mechanical and Nuclear Engineering, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, South Korea. Electronic address: skypia12@unist.ac.kr.3School of Mechanical and Nuclear Engineering, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, South Korea. Electronic address: kimhr@unist.ac.kr.
- 키워드
- Dose assessment; Environmental radiation; Nuclide recognition; Radiation distribution contour; Simultaneous visualization; Site monitoring
- 덧글달기
- 이전글 [Health Phys.] A New Approach for the Determination of Dose Rate and Radioactivity for Detected Gamma Nuclides Using an Environmental Radiation Monitor Based on an NaI(Tl) Detector.
- 다음글 [Appl Radiat Isot.] Development of an effective dose coefficient database using a computational human phantom and Monte Carlo simulations to evaluate exposure dose for the usage of NORM-added consumer products.