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-ray Spectrometry of Environmental Samples Collected in FukushimaSaegusa, Jun; Yoda, Tomoyuki; Maeda, Satoshi; Okazaki, Tsutomu; Otani, Shuichi; Yamaguchi, Toshio; Kurita, Yoshiyuki; Hasumi, Atsushi; Yonezawa, Chushiro*; Takeishi, Minoru
Proceedings of 14th International Congress of the International Radiation Protection Association (IRPA-14), Vol.3 (Internet), p.1078 - 1085, 2017/11
After the nuclear accident at the Fukushima Daiichi Nuclear Power Plant in March 2011, the Japan Atomic Energy Agency has newly set up a laboratory for radioactivity analysis in Fukushima. At the laboratory, radioactivity concentrations of environmental samples such as soil, water, dust filter, plant, etc., approximately 1,000 samples in a month, are measured with high-resolution -ray spectrometry systems. The systems employ n-type HPGe detectors from Ortec. Since September 2012, characterization and upgrade of the systems have been performed aimed at enhancing reliability of analysis and convenience of customers. Resolving both systematic and technical issues, the laboratory has been accredited the ISO/IEC 17025 standard as a testing laboratory for radioactivity analysis.
Hoshino, Yuzuru; Sakamoto, Yoshiaki; Muroi, Masayuki*; Mukai, Satoru*
JAEA-Technology 2015-015, 96 Pages, 2015/07
JAEA-Technology-2015-015.pdf:20.34MB
In order to dispose of the radioactive waste which generates from post-irradiation examination (PIE) facilities, the common evaluation method of radioactivity in wastes from PIE should be established by the actual data such as radioactivity values and the theoretical calculation. In this study, the radioactivity concentrations of 17 nuclides (H-3, C-14, Co-60, Ni-63, Sr-90, Tc-99, Cs-137, Eu-154, U-234, U-235, U-238, Pu-238, Pu-239, Pu-240, Pu-241, Am-241, Cm-244) in combustible wastes stored in NUCLEAR DEVELOPMENT CORPORATION were measured from 3 samples and the radioactivity was calculated by ORIGEN-2 based on initial contents and operation record of the spent fuel. From the comparison of the obtained data by the radiological measurement with the calculated values, the subject to be solved for establishment of the radioactivity evaluation method for PIE was extracted.
Tanaka, Tadao; Kamiyama, Hideo
JAERI-M 93-035, 22 Pages, 1993/03
no abstracts in English
Np in spent nuclear fuels; K.Kammerichs*; L.Koch*
Journal of Radioanalytical and Nuclear Chemistry, Letters, 117(4), p.233 - 241, 1987/04
no abstracts in English
activity measurements with pulse shape discrimination(I),(II); *; *
Radioisotopes, 33(12), p.835 - 840, 1984/00
no abstracts in English
; ; ; ; ; *; *; *; *; *
Bunseki Kagaku, 16(13), p.96R - 122R, 1967/00
no abstracts in English
Saegusa, Jun; Yanagisawa, Kayo; Yamaguchi, Toshio; Manabe, Sachi; Yoda, Tomoyuki; Maeda, Satoshi; Utsumi, Azusa; Shibamichi, Masaru; Ejiri, Akira; Kurita, Yoshiyuki; et al.
no journal, ,
no abstracts in English
-spectrometry with Ge semiconductor detectors for the analysis of environmental soil samplesSaegusa, Jun; Maeda, Satoshi; Kurita, Yoshiyuki; Yoda, Tomoyuki; Takeishi, Minoru
no journal, ,
no abstracts in English
Komada, Ryo*; Yabe, Yuki*; Arai, Tsuyoshi*; Sato, Fuminori
no journal, ,
no abstracts in English
Baba, Yuji*; Shimoyama, Iwao
no journal, ,
no abstracts in English
and spectrometry and elemental composition by ICP-AESNitta, Ayako; Hinai, Hiroshi; Shibata, Atsuhiro; Koma, Yoshikazu
no journal, ,
no abstracts in English
-emitting nuclides analysis of the stagnant water including sediments in Fukushima Daiichi NPS, 5; Estimation of Pu and Am behavior in the stagnant water of Unit #3 reactorNitta, Ayako; Hinai, Hiroshi; Kitawaki, Shinichi; Koma, Yoshikazu
no journal, ,
no abstracts in English
-emitting nuclides analysis of the stagnant water including sediments in Fukushima Daiichi NPS, 8; Behavior of moving to sediment of Pu and AmNitta, Ayako; Hinai, Hiroshi; Kitawaki, Shinichi; Koma, Yoshikazu
no journal, ,
no abstracts in English
Nitta, Ayako
no journal, ,
no abstracts in English
