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Research Highlights, IoT-compatible Radiation Dosimeter for Real-time and On-site Monitoring

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.

photo: Developed radiation dosimeter
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.

Photo: SUZUKI Ryoichi, KUROSAWA Tadahiro
 

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.

Photo: Developed radiation dosimeter
 

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.

Photo: SUZUKI Ryoichi
 

Contact for inquiries related to this theme

Photo: SUZUKI Ryoichi
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 "@".)

Web: https://unit.aist.go.jp/rima/en/intro/index.html

Photo: KUROSAWA Tadahiro
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 "@".)

Web: https://unit.aist.go.jp/rima/ioniz-rad/en/

Photo: NAITO Wataru
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 "@".)

Web: https://riss.aist.go.jp/en/

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