SYMPOSIA PAPER Published: 14 December 2018
STP160820170060

Image Reconstruction of Radioactive Contamination Due to the Fukushima-Daiichi Nuclear Power Station Accident Using a Compact Compton Camera

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We developed a lightweight compact Compton camera to measure the distribution of radioactive contamination inside the Fukushima Daiichi Nuclear Power Station. We conducted performance evaluation tests in the coastal area of Fukushima, Japan, using the camera, which employs a cerium (Ce)-doped GAGG (Gd3Al2Ga3O12) scintillator coupled with a multipixel photon counter. The camera can clearly visualize spreading of radioactivity along the ground surface. In addition, we performed three-dimensional image reconstruction of the distribution of radioactive contamination using the multi-angle data obtained with the Compton camera. We succeeded in obtaining a three-dimensional image of radioactive contamination in the outdoor area.

Author Information

Sato, Yuki
Collaborative Laboratories for Advanced Decommissioning Science, Japan Atomic Energy Agency, Fukushima, JP
Terasaka, Yuta
Collaborative Laboratories for Advanced Decommissioning Science, Japan Atomic Energy Agency, Fukushima, JP
Miyamura, Hiroko
Collaborative Laboratories for Advanced Decommissioning Science, Japan Atomic Energy Agency, Fukushima, JP
Kaburagi, Masaaki
Collaborative Laboratories for Advanced Decommissioning Science, Japan Atomic Energy Agency, Fukushima, JP
Tanifuji, Yuta
Collaborative Laboratories for Advanced Decommissioning Science, Japan Atomic Energy Agency, Fukushima, JP
Kawabata, Kuniaki
Collaborative Laboratories for Advanced Decommissioning Science, Japan Atomic Energy Agency, Fukushima, JP
Torii, Tatsuo
Collaborative Laboratories for Advanced Decommissioning Science, Japan Atomic Energy Agency, Fukushima, JP
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Developed by Committee: E10
Pages: 428–436
DOI: 10.1520/STP160820170060
ISBN-EB: 978-0-8031-7662-1
ISBN-13: 978-0-8031-7661-4