In-situ remotely controllable ocean radiation monitoring system SCIE SCOPUS

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Title
In-situ remotely controllable ocean radiation monitoring system
Author(s)
Lee, S.; Lee, J.S.; Kim, H.S.; Park, J.; Baek, Seungjae; Song, Yujae; Seo, Jungmin; Kim, Soo Mee
KIOST Author(s)
Baek, Seungjae(백승재)Song, Yujae(송유재)Seo, Jungmin(서정민)Kim, Soo Mee(김수미)
Publication Year
2020-06
Abstract
Prompt in-situ monitoring of sea radiation contamination is crucial to prevent the sea from spreading radioactive materials to other parts of the world and the hazard of internal exposures in marine life and the human through food chain. In this paper, we evaluated the performance of a new ocean radiation monitoring robotic boat prototype system. The system featured real-time and on-site gamma spectroscopy with a portable detector of a CsI(Tl) crystal and a PIN diode carried by an unmanned surface vehicle. The system performed good energy linearity and energy resolution (21% at 662 keV). The efficiency and the minimum detectable activity (24 h acquisition) for underwater Cs-137 detection were 1.334 x 10(-5) and 2.5 Bq/kg, respectively. We conducted a Monte Carlo simulation to estimate the detection performance with uniform and point source distributions. In the water tank experiments, we measured the count rates with differing depths of a Cs-137 point source. The maximum detectable distance was 50 cm according to both experiment and simulation results. Additionally, on-site experiment was conducted to test the operability of the system in a real sea. The overall study showed the feasibility of the system for in-situ ocean radiation monitoring.
ISSN
1748-0221
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/38616
DOI
10.1088/1748-0221/15/06/P06027
Bibliographic Citation
JOURNAL OF INSTRUMENTATION, v.15, 2020
Publisher
IOP PUBLISHING LTD
Keywords
Radiation monitoring; Spectrometers
Type
Article
Language
English
Document Type
Article
Publisher
IOP PUBLISHING LTD
Related Researcher
Research Interests

Computer System,System Software,Storage System,컴퓨터 시스템,시스템 소프트웨어,스토리지 시스템

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