Real-time wireless marine radioactivity monitoring system using a SiPM-based mobile gamma spectroscopy mounted on an unmanned marine vehicle
Cited 0 time in
WEB OF SCIENCE
Cited 0 time in
- Real-time wireless marine radioactivity monitoring system using a SiPM-based mobile gamma spectroscopy mounted on an unmanned marine vehicle
- Lee, Min Sun; Kim, Soo Mee; Jang, Mee; Cha, Hyemi; Seo, Jungmin; Baek, Seung Jae; Lim, Jong-Myoung
- KIOST Author(s)
- Kim, Soo Mee(김수미); Seo, Jungmin(서정민); Baek, Seung Jae(백승재)
- 김수미; 서정민; 백승재
- Marine radioactivity monitoring is critical for taking immediate action in case of unexpected nuclear accidents at nuclear facilities located near coastal areas. Especially when the level of contamination is not predictable, mobile monitoring systems will be useful for wide-area ocean radiation survey and for determination of the level of radioactivity. Here, we used a silicon photomultiplier and a high-efficiency GAGG crystal to fabricate a compact, battery-powered gamma spectroscopy that can be used in an ocean environment. The developed spectroscopy has compact dimensions of 6.5 x 6.5 x
8 cm3 and weighs 560 g. We used LoRa, a low-power wireless protocol for communication. Successful data transmission was achieved within 1.4 m water depth. The developed gamma spectroscopy was able to detect radioactivity from a 137Cs point source (3.7 kBq) at a distance of 20 cm in water. Moreover, we demonstrated an unmanned radioactivity monitoring system in a real sea by combining unmanned surface vehicle with the developed gamma spectroscopy. A hidden 137Cs source (3.07 MBq) was detected by the unmanned system at a distance of 3 m. After successfully testing the developed mobile spectroscopy in an ocean environment, we believe that our proposed system will be an effective solution for mobile real-time marine radioactivity monitoring.
- Nuclear Engineering and Technology, v.55, no.6, pp.2158 - 2165, 2023
- Marine radioactivity monitoring; Gamma spectroscopy; Unmanned marine vehicle; Long Range (LoRa); Silicon photomultiplier
- Files in This Item:
There are no files associated with this item.
Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.