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Sasaki, Miyuki; Nishizawa, Yukiyasu; Imura, Mitsuo; Yamada, Tsutomu; Sanada, Yukihisa
no journal, ,
no abstracts in English
Miyamoto, Kenji; Sasaki, Miyuki; Sanada, Yukihisa; Ogawa, Toshihiro*; Senga, Yasuhiro*
no journal, ,
no abstracts in English
Sasaki, Miyuki; Nishizawa, Yukiyasu; Ishizaki, Azusa; Imura, Mitsuo*; Sanada, Yukihisa
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no abstracts in English
Sato, Yuki; Kaburagi, Masaaki; Terasaka, Yuta; Saegusa, Jun; Kawabata, Kuniaki; Wakaida, Ikuo; Torii, Tatsuo
no journal, ,
The development of radiation measurement methods in the high dose-rate environment is requested to accelerate implementation of decommissioning of the Fukushima Dai-ichi Nuclear Power Plant (FDNPP). We are now developing the technology which can measure the distribution of the contamination level with radioactive substances inside the building of FDNPP. Light-weight portable gamma camera is to be developed, and is used for drones that can remotely measure the radiation distributions in the high radioactive fields where workers are not allowed to enter and remain there.
Sasaki, Miyuki; Ishizaki, Azusa; Sanada, Yukihisa
no journal, ,
Since accident of the Fukushima Daiichi Nuclear Power Station (FDNPS), some unmanned vehicle was applied for radiation measurement around the FDNPS. JAEA is developing a method using a small multi-rotor helicopter (micro UAV) for measurement of radiation in the environment. The micro UAV is expected to be useful to measure the radiation distribution at small areas easily. In the conventional method, there are some premises to convert from count rate to dose rate at 1 m above the ground and they make it difficult to measure precise dose rate by airborne monitoring system at mountains and uneven places. Besides, the influence of the radiation from a structure and tree on the ground is not ignored at the low altitude less than 50 m that micro UAV can fly stably. In this study, the successive approximation method which is used in the medical radiation such as Positron Emission Tomography is attempted to apply to environmental radiation measurement.
Sato, Yuki; Ozawa, Shingo*; Izumi, Ryo*; Terasaka, Yuta; Kaburagi, Masaaki; Miyamura, Hiroko; Kawamura, Takuma; Tanifuji, Yuta; Kawabata, Kuniaki; Suzuki, Toshikazu*; et al.
no journal, ,
no abstracts in English
Sato, Yuki; Izumi, Ryo*
no journal, ,
no abstracts in English
(Ce) detector for estimating radiocesium distribution in soilOchi, Kotaro; Malins, A.; Ishida, Mutsushi*; Yamada, Tsutomu*; Nakasone, Takamasa*; Sanada, Yukihisa
no journal, ,
no abstracts in English