방사능 측정장치 운영 기술 및 측정정보 통합관리 시스템 개발

• Published in: Journal of Radiological Science and Technology, 47(3) Vol. 47; no. 3; pp. 183 - 195
• Main Authors: 진동식(Dong-Sik Jin), 김경령(Kyeong-Ryeong Kim), 이재근(Jae-Geun Lee)
• Format: Journal Article
• Language: Korean
• Published: 대한방사선과학회(구 대한방사선기술학회) 30.06.2024; KOREAN SOCIETY OF RADIOLOGICAL TECHNOLOGY; 대한방사선과학회
• Subjects: 방사선과학; Radioactive material; 콘크리트 방사화; Concrete internal activation; Decommissioning of nuclear power plants; 측정정보 통합관리; 방사성물질; 원전해체; 삼차원분포 영상화; 3D distribution imaging; Integrated measurement information management
• ISSN: 2288-3509; 2384-1168

Additional functional upgrades to the large-area compton camera (LACC) measurement device that can provide characteristics evaluation information (nuclear species and radioactivity) and two-dimensional or three-dimensional distribution imaging information of radioactive materials existing in surface or internal of concrete structures are required in terms of work stability and efficiency in order to apply to actual decommissioning sites such as nuclear power plants or medical cyclotron facilities by using this measurement device. To this purpose, the technology that allows radiation workers to intuitively and visually check the distribution of radioactive materials in advance by matching the two-dimensional distribution imaging information of radioactive materials obtained through the LACC measurement device and visual imaging of the measurement zone (10 m × 5 m) was developed. In addition, the separate system that can automatically adjust the position (height) in units of the measurement area size (0.7 m × 0.3 m × 0.8 m) of the LACC measurement device was developed and the integrated management system for characteristics evaluation information and two-dimensional or three-dimensional distribution imaging information obtained per unit of measurement for radioactive materials was developed. These functional upgrades related to LACC measurement device can improve work efficiency and safety when measuring radioactivity of concrete structures and enable the establishment of appropriate decommissioning strategies using radioactivity measurement information for decommissioning nuclear power plants or medical cyclotron facilities.