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최은미

Choi, EunMi
THz Vacuum Electronics and Applied Electromagnetics Lab.
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Real-time, remote detection of radioactive material using a high-power millimeter/THz wave vacuum device

Author(s)
Kim, DongsungYu, DonghoSawant, AshwiniChoe, Mun SsokLee, IngeunChoi, EunMi
Issued Date
2017-10-10
DOI
10.23919/EuMC.2017.8230940
URI
https://scholarworks.unist.ac.kr/handle/201301/36691
Fulltext
https://ieeexplore.ieee.org/document/8230940/
Citation
47th European Microwave Conference, EuMC 2017, pp.687 - 690
Abstract
We present the first experimental demonstration of the remote-detection of a concealed radioactive material using a high-power millimetre-wave vacuum device, a gyrotron. A 95 GHz, 30 kW pulsed gyrotron was used for detecting a 0.64 mCi 60Co radioactive material via plasma breakdown. We observed the obvious difference in the measured plasma formation delay time in the presence of radioactive material compared to without the radioactive material. The plasma breakdown threshold electric field was measured with the radioactive material and compared to without it. The presented experimental results support a strong detection capability of the concealed radioactive material using the invisible electromagnetic wave source, a highpower vacuum device.
Publisher
47th European Microwave Conference, EuMC 2017

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