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Title	A distributed and interconnected network of sensors for environmental radiological monitoring
Author(s)	Gallego Manzano, L (CERN) ; Bisegni, C (Frascati) ; Boukabache, H (CERN) ; Curioni, A (CERN) ; Heracleous, N (CERN) ; Murtas, F (Frascati) ; Perrin, D (CERN) ; Silari, M (CERN)
Publication	2020
In:	Radiat. Meas. 139 (2020) 106488
DOI	10.1016/j.radmeas.2020.106488
Abstract	The W-MON project aims to improve and automatize the control of the presence of radioactive material in conventional waste containers at CERN using a distributed network of interconnected low-power radiation sensors. The key development is the integration of a lightweight but sensitive radiation sensor in a powerful network that allows continuous data recording, transfer and storage in a database for alarm triggering and subsequent data analysis. The Chiyoda D-shuttle personal dosimeter was used as proof-of-concept. Extensive tests performed with the commercial version of the D-shuttle showed that its robustness, stability under variable thermal conditions, high sensitivity and hourly dose logging capabilities make it a strong candidate for the project. To comply with the requirements of remote operation and wireless data transmission to a central server, a customized version of the D-shuttle has been developed. Two additional radiation sensors are also currently being considered. The sensors have been coupled to a custom-made communication board allowing for long-range low-power LoRa wireless data transmission. A centralized IoT (Internet of Things) end-to-end data architecture has been developed for real-time monitoring and visualization of the radiation level in waste containers before the final integration into REMUS, the overall CERN Radiation and Environment Monitoring Unified Supervision service.
Copyright/License	© 2020 The Authors. Published by Elsevier Ltd. (License: CC-BY-4.0)

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