Development of a real-time mobile gamma-ray measurement system for shipboard use

• Published in: Nuclear engineering and technology Vol. 55; no. 11; pp. 4077 - 4082
• Main Authors: Kim, Chang-Jong, Jang, Mee, Kim, Hyuncheol, Lim, Jong-Myoung, Lee, Wanno, Cho, Gyu-Seong
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.11.2023; Elsevier; 한국원자력학회
• Subjects: gamma-ray measurement; Marine radiation surveillance; Minimum detectable activity; Shipboard use; 원자력공학; Shipboard use; Minimum detectable activity; Marine radiation surveillance; gamma-ray measurement
• ISSN: 1738-5733; 2234-358X
• DOI: 10.1016/j.net.2023.07.026

Large areas must be rapidly screened to monitor radiation in marine environments. For this purpose, this study developed a mobile real-time gamma-ray measurement system for shipboard use and evaluated its performance. The system was developed to measure engine or generator cooling water by installing a canister inside the ship. The minimum detectable activity of the system is about 0.8 Bq/L for a 60 s measurement period, and real-time data transmission and remote control are possible. The system was tested in the field and is currently being installed and operated on ships in service. Such a ship-based real-time gamma-radiation measurement system is suitable for a wide range of marine radiation surveillance applications and is expected to be rapidly deployed.