Zobrazeno 1 - 10
of 91
pro vyhledávání: '"Chushiro Yonezawa"'
Publikováno v:
BUNSEKI KAGAKU. 69:627-637
Publikováno v:
RADIOISOTOPES. 69:287-297
Autor:
Shoji Hirai, Akira Okada, Yukiko Okada, Kazutoshi Kakita, Yoshinobu Uematsu, Isao Kojima, Chushiro Yonezawa, Yoshitaka Minai, Tsutomu Miura
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 318:347-352
Certified reference materials (CRMs) of the fish meat powder and the fish bone ash for validation of measurement of anthropogenic nuclides (134Cs, 137Cs and 90Sr) related the Fukushima Daiichi nuclear power plant accident were developed using an inte
Autor:
Chushiro Yonezawa, Kazutoshi Kakita, Fumihiro Arakawa, Takanori Takahashi, Hidetake Ishizu, Yukiko Okada, Nobuharu Kihou, Masakazu Akiyama, Shoji Hirai, Shinya Namura, Satoshi Maeda, Takashi Yamada, Tatsuo Aono, Mitsuya Yoshida
Publikováno v:
BUNSEKI KAGAKU. 67:213-220
Publikováno v:
Applied Radiation and Isotopes. 121:131-141
An example of uncertainty evaluation of an efficiency curve is reported. In the applied method, the efficiency curve is determined through the weighted least square method based on measured efficiencies employing a mixed-radionuclide standard source.
Autor:
Yukiko Okada, Shoji Hirai, Chushiro Yonezawa, Tsutomu Miura, Isao Kojima, Masami Shibukawa, Makoto Furukawa, Kazutoshi Kakita, H. Iwamoto, Yoshitaka Minai, F. Arakawa, Yoshitaka Takagai
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 307:2421-2426
Certified reference materials (CRMs) for food analysis were developed in an inter-laboratory experiment for validation of measurement of radiocesium in foodstuffs. Since 2012, five series of CRMs were developed, including for brown rice grain, soybea
Publikováno v:
Tetsu-to-Hagane. 100:873-883
Autor:
Chushiro Yonezawa
Publikováno v:
Hyomen Kagaku. 33:264-271
Autor:
H. Matsue, Chushiro Yonezawa
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 271:425-429
Neutron spectra were measured by the time of flight method using a rotating disk chopper system in the JRR-3M prompt gamma ray analysis system. Effective g-factors for non-1/v elements such as Cd, Sm and Gd were calculated from the measured neutron s
Publikováno v:
BUNSEKI KAGAKU. 55:689-699
k0標準化法を用いた機器中性子放射化分析法(k0-INAA)は,比較標準を必要としないため,試料の調製から照射•測定までの操作が容易になり,更に定量限界以上であれば試料中に存在す