title: Measurements of gamma (γ)-emitting radionuclides with a high-purity germanium detector: the methods and reliability of our environmental assessments on the Fukushima 1 Nuclear Power Plant accident.
abstract: The severe accident of Fukushima 1 Nuclear Power Plant due to the Tohoku Region Pacific Coast Earthquake in 11 March 2011 caused wide contamination and pollution by radionuclides in Fukushima and surrounding prefectures. In the current JPR symposium, a group of plant scientists attempted to examine the impact of the radioactive contamination on wild and cultivated plants. Measurements of gamma (γ) radiation from radionuclides in "Fukushima samples", which we called and collected from natural and agricultural areas in Fukushima prefecture were mostly done with a high-purity Ge detector in the Graduate School of Maritime Sciences, Kobe University. In this technical note, we describe the methods of sample preparation and measurements of radioactivity of the samples and discuss the reliability of our data in regards to the International Atomic Energy Agency (IAEA) Interlaboratory comparisons and proficiency test (IAEA proficiency test).
authors: Department of Biology, Graduate School of Science, Kobe University, Rokkodai, Nada, Kobe, 657-8501, Japan, mimura@kobe-u.ac.jp.
authors: Tetsuro
authors: T
authors: Mimura
authors: Mari
authors: M
authors: Mimura
authors: Chiyo
authors: C
authors: Komiyama
authors: Masaaki
authors: M
authors: Miyamoto
authors: Akira
authors: A
authors: Kitamura
mesh_terms: D002138:Calibration; D004777:Environment; D062406:Fukushima Nuclear Accident; D005720:Gamma Rays; D005857:Germanium; D007564:Japan; D059021:Laboratory Proficiency Testing; D055848:Nuclear Power Plants; D010944:Plants / Q000737:chemistry / Q000378:metabolism*; D011834:Radiation Monitoring / Q000379:methods*; D011848:Radioactive Pollutants / Q000032:analysis / Q000378:metabolism*; D011868:Radioisotopes / Q000032:analysis / Q000378:metabolism; D015203:Reproducibility of Results; D012624:Seaweed / Q000737:chemistry / Q000378:metabolism*; D012987:Soil / Q000737:chemistry*
chemical_list: D011848:Radioactive Pollutants; D011868:Radioisotopes; D012987:Soil; D005857:Germanium