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Malins, A.; Machida, Masahiko; Vu, TheDang; Aizawa, Kazuya; Ishida, Takekazu*
Nuclear Instruments and Methods in Physics Research A, 953, p.163130_1 - 163130_7, 2020/02
Times Cited Count：2 Percentile：8.37(Instruments & Instrumentation)Ueno, Kazuki*; Suzuki, Hiroshi; Koyama, Taku*; Nishio, Yuhei*; Kanematsu, Manabu*
Konkurito Kozobutsu No Hoshu, Hokyo, Appuguredo Rombun Hokokushu (CD-ROM), 18, p.647 - 650, 2018/10
no abstracts in English
Sekine, Mariko*; Suzuki, Hiroshi; Kanematsu, Manabu*
Konkurito Kogaku Nenji Rombunshu (DVD-ROM), 40(1), p.1545 - 1550, 2018/07
no abstracts in English
Kai, Tetsuya; Shinohara, Takenao; Hiroi, Kosuke; Su, Y.; Oikawa, Kenichi
Hihakai Kensa, 67(5), p.209 - 216, 2018/05
no abstracts in English
Kureta, Masatoshi
Kagaku Kogaku, 80(8), p.464 - 467, 2016/08
A neutron radiography is technology which carries out visualization and measurement of the inside of a substance using neutrons. This technology has the complementary feature comparing with X-ray radiography (Roentgen technique). In this review paper, the measurement principle, some application examples such as visualization of oil in the working car engine, and about the leading-edge technology using high-intensity proton beam accelerator facility J-PARC (common neutron imaging facility), etc. It was introduced in the form where the whole neutron radiography technology for every dimension of measurement were covered.
Yasuda, Ryo; Matsubayashi, Masahito; Nakata, Masahito; Harada, Katsuya; Amano, Hidetoshi; Sasajima, Fumio; Nishi, Masahiro; Horiguchi, Yoji
IEEE Transactions on Nuclear Science, 52(1), p.313 - 316, 2005/02
Times Cited Count：9 Percentile：43.23(Engineering, Electrical & Electronic)Neutron radiography is useful to inspect macroscopic change in nuclear fuels before and after irradiation. We have been investigated the practicality of neutron imaging plate and neutron CT methods for the inspection of the spent fuels. A fresh UO2 fuel rod was examined by those methods. The test results of those samples are available to develop the system of those methods for the spent fuels and to determine the specifications of the system. Some good images of those samples are obtained by those examinations. The shape of the pellets in the fuel rod is clearly recognized in the image. Those images are analyzed to estimate the size of some parts in the fuel pellets.
:Ce
based materials as a neutron storage phosphorSakasai, Kaoru; Katagiri, Masaki; Matsubayashi, Masahito; Nakamura, Tatsuya; Kondo, Yasuhiro*
Nuclear Instruments and Methods in Physics Research A, 529(1-3), p.378 - 383, 2004/08
Times Cited Count：15 Percentile：28.31(Instruments & Instrumentation)no abstracts in English
Yasuda, Ryo; Nakata, Masahito; Matsubayashi, Masahito; Harada, Katsuya; Hatakeyama, Yuichi; Amano, Hidetoshi
Journal of Nuclear Materials, 320(3), p.223 - 230, 2003/08
Times Cited Count：13 Percentile：32.66(Materials Science, Multidisciplinary)Neutron radiography is one of effective tools to determine hydrided region in Zircaloy cladding tubes. In this work, the practicability of the neutron radiography for hydrogen analysis is further investigated by using standard samples with known hydrogen concentration. Local hydrogen concentration in hydrided Zircaloy tube is quantitatively estimated using the standard samples by neutron imaging plate (NIP) method. The local area is equivalent to a picture element in the image; e.g., 0.1mm
0.1mm. In addition, contribution of an oxide film in the tubes to the images is investigated using oxidized samples with hydrides or no hydride. In NIP images of oxidized tube no oxide film was recognized. Numerical image analysis also shows no effect of the oxide film on the image. These results show that the influence of oxygen on image contrast can be neglected when hydrogen analysis is performed on the Zircaloy tube with oxide film and hydrides by NIP method.
Haga, Yuko*; Neriishi, Keiko*; Takahashi, K.*; Niimura, Nobuo
Nuclear Instruments and Methods in Physics Research A, 487(3), p.504 - 510, 2002/07
Times Cited Count：9 Percentile：45.57(Instruments & Instrumentation)no abstracts in English
Yasuda, Ryo; Matsubayashi, Masahito; Nakata, Masahito; Harada, Katsuya; Amano, Hidetoshi; Ando, Hitoshi*; Sasajima, Fumio; Nishi, Masahiro; Horiguchi, Yoji
JAERI-Tech 2002-001, 23 Pages, 2002/02
JAERI-Tech-2002-001.pdf:3.79MB
Advanced neutron radiography techniques such as neutron imaging plate (NIP) and Computed Tomography (CT) methods have been investigated the practicality for Post Irradiation Examination (PIE). In this work, an unirradiated fuel rod was examined by NIP and CT methods in order to collect the fundamental data for applying these techniques to PIE.The fuel rod is composed of seven-enriched UO2 pellet and two-natural UO2 pellet that are loaded into a Zircaloy tube. There are somewhat difference in the size and shape among those UO2 pellets. A transmitted and cross-sectional images were obtained by NIP and CT methods, respectively.In the NIP image, the difference in the size, shape, and enrichment among the UO2 pellets is obviously recognized. In the case of CT method, the images clearly show the detailed shape of the cross section in the pellets, in addition, the difference in the enrichment between the natural and enriched pellets is recognized.
Tanaka, Ichiro; Kurihara, Kazuo; Chatake, Toshiyuki; Niimura, Nobuo
Journal of the Physical Society of Japan, Vol.70, Supplement A, p.459 - 461, 2001/05
no abstracts in English
Maeda, Mitsuru; Fujiwara, Satoru; Yonezawa, Yasushige*; Niimura, Nobuo
Journal of the Physical Society of Japan, Vol.70, Supplement A, p.403 - 405, 2001/05
no abstracts in English
Yamagishi, Hideshi; Soyama, Kazuhiko; Kaneko, Junichi; Ikeda, Yujiro
JAERI-Tech 2000-085, 21 Pages, 2001/02
JAERI-Tech-2000-085.pdf:1.73MB
no abstracts in English
Yamagishi, Hideshi; Kaneko, Junichi
JAERI-Tech 2000-079, 9 Pages, 2001/01
JAERI-Tech-2000-079.pdf:0.75MB
no abstracts in English
Sasaki, Toshihiko*; Minakawa, Nobuaki; Morii, Yukio; Niimura, Nobuo; Hirose, Yukio*
Nippon Zairyo Gakkai Dai-36-Kai X Sen Zairyo Kyodo Ni Kansuru Shimpojiumu Koen Rombunshu, p.259 - 262, 2000/09
no abstracts in English
Matsushima, Uzuki*; Oshita, Seiichi*; Nakanishi, Tomoko*; Matsubayashi, Masahito; Seo, Yasuhisa*; Kawagoe, Yoshinori*
Nogyo Kikai Gakkai-shi, 62(5), p.70 - 78, 2000/09
no abstracts in English
Ahmed, F. U.*; Tanaka, Ichiro; Niimura, Nobuo
Journal of Applied Crystallography, 33(Part.2), p.291 - 295, 2000/04
In order to improve significantly data collection efficiency, the advantages of using multi-wavelengths in single-crystal neutron diffraction as well as in powder neutron diffraction were established by experiments using a stacked monochromator assembly of two elastically bent perfect Si(111) and Si(220) crystals. The TAS-2 spectrometer on JRR-3M at JAERI was employed for these experiments. Each crystal was elastically bent in order to increase the flux density at the sample position. Two wavelengths, 
1=1.80
2=2.94
1 or by 2 in the case of powder and single-crystal diffraction on the NIP.
Niimura, Nobuo
Current Opinion in Structural Biology, 9(5), p.602 - 608, 1999/10
Times Cited Count：52 Percentile：49.55(Biochemistry & Molecular Biology)no abstracts in English
-ray sensitivity and shielding of a neutron imaging plateHaga, Yuko; Kumazawa, Shintaro*; Niimura, Nobuo
Journal of Applied Crystallography, 32(5), p.878 - 882, 1999/00
Times Cited Count：14 Percentile：27.98(Chemistry, Multidisciplinary)no abstracts in English
) for macromolecules with a neutron imaging plate*; *; *; Minezaki, Yoshiaki; Fujiwara, Satoru; Kumazawa, Shintaro*; Niimura, Nobuo
Journal of Physics and Chemistry of Solids, 60(8-9), p.1623 - 1626, 1999/00
Times Cited Count：9 Percentile：49.76(Chemistry, Multidisciplinary)no abstracts in English
