Final published version, 549 KB, PDF document
Available under license: CC BY: Creative Commons Attribution 4.0 International License
Final published version
Licence: CC BY: Creative Commons Attribution 4.0 International License
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - A Remote-operated System to Map Radiation Dose in the Fukushima Daiichi Primary Containment Vessel
AU - Nancekievill, Matthew
AU - Jones, Ashley Richard
AU - Joyce, Malcolm John
AU - Lennox, Barry
AU - Watson, Simon
AU - Katakura, Jun-ichi
AU - Okumura, Ken-Ichi
AU - Kamada, So
AU - Katoh, Michio
AU - Nishimura, Kazuya
PY - 2018/1/10
Y1 - 2018/1/10
N2 - This paper describes the development of a submersible system based on a remote-operated vehicle coupled with radiation detectors to map the interior of the reactors at the Fukushima Daiichi nuclear power station. It has the aim oflocating fuel debris. The AVEXIS submersible vehicle used in this study has been designed as a low-cost, potentially disposable, inspection platform that is the smallest of its class and is capable of being deployed through a 150 mm diameter access pipe. To map the gamma-ray environment, a cerium bromide scintillator detector with a small form factor has been incorporated into the AVEXIS to identify radioactive isotopes via gamma-ray spectroscopy. This provides the combined system with the potential to map gamma-ray spectra and particle locations throughout submerged, contaminated facilities, such as Units 1, 2 and 3 of the Fukushima Daiichi nuclear power plant. The hypothesis of this research is to determine the sensitivity of the combined system in a submerged environment that replicates the combination of gamma radiation and water submersion but at lower dose rates.
AB - This paper describes the development of a submersible system based on a remote-operated vehicle coupled with radiation detectors to map the interior of the reactors at the Fukushima Daiichi nuclear power station. It has the aim oflocating fuel debris. The AVEXIS submersible vehicle used in this study has been designed as a low-cost, potentially disposable, inspection platform that is the smallest of its class and is capable of being deployed through a 150 mm diameter access pipe. To map the gamma-ray environment, a cerium bromide scintillator detector with a small form factor has been incorporated into the AVEXIS to identify radioactive isotopes via gamma-ray spectroscopy. This provides the combined system with the potential to map gamma-ray spectra and particle locations throughout submerged, contaminated facilities, such as Units 1, 2 and 3 of the Fukushima Daiichi nuclear power plant. The hypothesis of this research is to determine the sensitivity of the combined system in a submerged environment that replicates the combination of gamma radiation and water submersion but at lower dose rates.
KW - Fukushima Daiichi
KW - Gamma-ray detection
KW - Radiation monitoring
KW - Nuclear Decommissioning
U2 - 10.1051/epjconf/201817006004
DO - 10.1051/epjconf/201817006004
M3 - Journal article
VL - 170
JO - EPJ Web of Conferences
JF - EPJ Web of Conferences
SN - 2100-014X
ER -