National Metrology Institute of Japan
Energy and Environment
IoT-compatible Radiation Dosimeter for Real-time and On-site Monitoring
- SUZUKI Ryoichi, KUROSAWA Tadahiro
Research Institute for Measurement and Analytical Instrumentation
- NAITO Wataru
Research Institute of Science for Safety and Sustainability
Released: January 27, 2021
On-site confirmation of transitions in radiation dose over time
A compact, lightweight radiation dosimeter has been developed that can constantly display the radiation dose with a liquid crystal display and can transmit dose data using power-saving wireless technology.
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| Developed radiation dosimeter |
Power consumption for wireless communication reduces battery life
AIST developed a compact and portable radiation dosimeter in 2012, and local residents use this commercialized dosimeter for dose measurement. This dosimeter does not have a display, so wireless communication is needed to constantly check the dose, and there was the issue that the power consumption for wireless communication resulted in a battery life of less than one year.
No battery replacement needed for two years or more, and centralized management of a large number of dosimeters using power-saving wireless technology
The newly developed dosimeter uses a low power-consumption liquid crystal display and enables to constantly confirm the current dose and the transition in the dose over time on the dosimeter body. Wireless communication uses power-saving technology that enables to transmit dose data measured at regular intervals such as every minute. A dedicated transceiver and software for wireless communication have also been developed, enabling efficient data collection and calibration to maintain accuracy for up to around 1,000 dosimeters/transceiver. This system provides near real-time understanding of who has been exposed to how much radiation, when and where.
Expected to help reduce radiation exposure
The researchers will examine the newly developed radiation dosimeter for dose measurement in actual radiation work to verify the effectiveness and apply it to the other fields such as medical diagnosis, non-destructive testing, and cosmic space development.
Contact for inquiries related to this theme
Research Institute for Measurement and Analytical Instrumentation, National Metrology Institute of Japan
SUZUKI Ryoichi, Prime Senior Researcher
AIST Tsukuba Central 2, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568 Japan
E-mail: rima_info-ml*aist.go.jp (Please convert "*" to "@".)
Ionizing Radiation Standards Group, Research Institute for Measurement and Analytical Instrumentation, National Metrology Institute of Japan
KUROSAWA Tadahiro, Group Leader
AIST Tsukuba Central 2, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568 Japan
E-mail: radiation-ml*aist.go.jp (Please convert "*" to "@".)
Risk Assessment Strategy Group, Research Institute of Science for Safety and Sustainability
NAITO Wataru, Group Leader
AIST Tsukuba West, 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan
E-mail: webmaster_riss-ml*aist.go.jp (Please convert "*" to "@".)