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Journal Articles

Magnetization process of cubic Fe$$_3$$O$$_4$$ submicron particles studied by polarized small-angle neutron scattering

Nomura, Eiji*; Chiba, Momoko*; Matsuo, Sakoto*; Noda, Chiaki*; Kobayashi, Satoru*; Manjanna, J.*; Kawamura, Yukihiko*; Oishi, Kazuki*; Hiroi, Kosuke; Suzuki, Junichi*

AIP Advances (Internet), 12(3), p.035034_1 - 035034_5, 2022/03

JAEA Reports

An Investigation for long-term storage of a spent zeolite adsorption vessel; Estimation of washing out salt component in a spent zeolite adsorption vessel, 1

Sato, Hiroyuki; Terada, Atsuhiko; Hayashida, Hitoshi; Kamiji, Yu; Kobayashi, Jun; Yamagishi, Isao; Morita, Keisuke; Kato, Chiaki

JAEA-Research 2013-042, 25 Pages, 2014/03

JAEA-Research-2013-042.pdf:5.13MB

Spent zeolite adsorption vessels in the Fukushima No.1 nuclear power plant are kept for long-term with washing out with fresh water for prevention of corrosion remaining salt component in vessel. However, corrosion result is concerned by residual concentration of salt component, washing out experiment is carried out using actual and unspent adsorption vessel (KURION). KURION adsorption vessel is filled with 1,650 ppm of sodium chloride (1,000 ppm of chloride ion) and washed out with pure water for estimating washing effect in this experiment. Pure water is streamed with volume flow rate 4.5 m$$^{3}$$/h, chloride concentration in vessel is measured with drainage sample water. 1,000 ppm of chloride concentration is decreased till 0.5 ppm and below by washing out with about double pure water volume of adsorbing material filling volume in vessel, washing out is more effective in KURION adsorption vessel.

Journal Articles

Evaluation of ductile damage progress of aluminum single crystal with prior activity of single slip system under tensile loading by using synchrotron white X-ray

Shibano, Junichi*; Kajiwara, Kentaro*; Tsukamoto, Takuya*; Kawai, Hirokazu*; Miura, Setsuo*; Zhang, S.*; Shobu, Takahisa; Kobayashi, Michiaki*

Materials Science Forum, 777, p.176 - 181, 2014/02

 Times Cited Count:1 Percentile:53.95

Journal Articles

Study on evaluation of ductile damage of aluminum single crystal using synchrotron white X-ray

Shibano, Junichi*; Kiso, Minoru*; Kajiwara, Kentaro*; Shobu, Takahisa; Miura, Setsuo*; Kobayashi, Michiaki*

Zairyo, 62(7), p.443 - 450, 2013/07

The ductile damage progress of the FCC single crystal was verified by the profile analysis using the white X-ray obtained in BL28B2 beam-line of SPring-8. In this study, an aluminum single crystal of the purity 6N was used as a specimen prepared in the I-type geometry for tensile test. The notch was introduced into one side of the center of a parallel part of the specimen by wire electric discharge machining. White X-ray, which has 200 microns in height and 100 microns in width, was incident into the specimen on the Bragg angle of 3$$^{circ}$$ in the horizontal plane using energy dispersive X-ray diffraction technique. As a result, in 1.1% of applied strain, increase of the lattice strain was observed in the direction of about 45$$^{circ}$$ of slant from the notch bottom. In 2.2% of applied strain, the lattice strain reduced in the direction of about 45$$^{circ}$$ of slant from the notch bottom. Non-uniform strain and dislocation density decreased similarly.

Journal Articles

Nuclear nonproliferation capacity building support by Integrated Support Center for Nuclear Nonproliferation and Nuclear Security; Modeling the support program for Vietnam and beyond

Hamada, Kazuko; Senzaki, Masao; Okubo, Michiaki; Naoi, Yosuke; Kobayashi, Naoki; Nguyen, N. H. V.*

Proceedings of INMM 53rd Annual Meeting (CD-ROM), 10 Pages, 2012/07

no abstracts in English

Journal Articles

Transmission imaging and strain mapping in the vicinity of internal crack tip using synchrotron white X-ray

Shibano, Junichi*; Kajiwara, Kentaro*; Kiriyama, Koji*; Shobu, Takahisa; Suzuki, Kenji*; Nishimura, Suguru*; Miura, Setsuo*; Kobayashi, Michiaki*

Materials Science Forum, 638-642, p.2476 - 2481, 2010/01

Journal Articles

Observation of internal crack of steel bar by computed tomography and strain mapping near its tip using synchrotron white X-ray

Shibano, Junichi*; Kiriyama, Koji; Kajiwara, Kentaro*; Shobu, Takahisa; Suzuki, Kenji*; Arai, Takayuki*; Miura, Setsuo*; Kobayashi, Michiaki*

Zairyo, 58(7), p.596 - 602, 2009/07

Journal Articles

Study on imaging and strain mapping in the vicinity of internal crack tip using synchrotron white X-ray

Shibano, Junichi*; Kajiwara, Kentaro*; Kiriyama, Koji; Shobu, Takahisa; Suzuki, Kenji*; Nishimura, Suguru*; Miura, Setsuo*; Kobayashi, Michiaki*

Zairyo, 57(7), p.667 - 673, 2008/07

Journal Articles

Measurement of internal strain in materials using high energy white X-ray at SPring-8

Shibano, Junichi*; Shobu, Takahisa; Suzuki, Kenji*; Kiriyama, Koji; Kajiwara, Kentaro*; Kaneko, Hiroshi; Kobayashi, Michiaki*

Materials Science Forum, 571-572, p.267 - 270, 2008/00

Journal Articles

Measurement of internal strain in materials using high energy synchrotron radiation white X-rays

Shibano, Junichi*; Shobu, Takahisa; Suzuki, Kenji*; Hirata, Tomoyuki*; Kaneko, Hiroshi; Kobayashi, Michiaki*

Zairyo, 56(10), p.985 - 992, 2007/10

This paper presents a basic research on a measurement of strain in the bulk of materials by using high energy white X-rays from a synchrotron radiation source of SPring-8. WEL-TEN780E (JIS G3128 SHY685) whose grain size was 0.013 mm was used as a specimen. The specimen was loaded with four point bending. The white X-ray beam, which has a height of 0.05 mm and width of 0.03 mm, was incident in it. Bending strain at the surface of specimen was measured by a strain gauge. The internal strain of SHY685 of 5 mm thickness could be evaluated using white X-rays which range of energy from 60 keV to 150 keV. Furthermore, the measurement error of strain could be decreased by using the diffracted X-rays with high energy, high peak count and the profile which is close to Gaussian curve. The results showed that the high energy white X-ray is effective for internal strain measurements.

Journal Articles

Application of an ECRIS for the JAERI tandem accelerator

Matsuda, Makoto; Takeuchi, Suehiro; Kobayashi, Chiaki*

KEK Proceedings 99-22, p.17 - 27, 2000/01

no abstracts in English

Journal Articles

Beam acceleration experiments from the in-terminal ECR ion source

Matsuda, Makoto; Takeuchi, Suehiro; Kobayashi, Chiaki*

Dai-12-Kai Tandemu Kasokuki Oyobi Sono Shuhen Gijutsu No Kenkyukai Hokokushu, p.113 - 116, 1999/00

no abstracts in English

Journal Articles

In-terminal ECR ion source of the tandem accelerator at JAERI

Matsuda, Makoto; Kobayashi, Chiaki*; Takeuchi, Suehiro

Proc. of 14th Int. Workshop on ECR Sources (ECRIS99), p.176 - 179, 1999/00

no abstracts in English

Journal Articles

ECR ion source for the JAERI tandem accelerator

Matsuda, Makoto; Takeuchi, Suehiro; Kobayashi, Chiaki*

F-113-'98/NIES, p.109 - 111, 1998/00

no abstracts in English

Journal Articles

Use of an ECR ion source in the high voltage terminal of the tandem accelerator at JAERI

Matsuda, Makoto; Kobayashi, Chiaki*; Takeuchi, Suehiro

Proc. of 8th Int. Conf. on Heavy Ion Accelerator Technology, p.65 - 73, 1998/00

no abstracts in English

Journal Articles

Application of an ECR ion source to the JAERI tandem accelerator

Matsuda, Makoto; Takeuchi, Suehiro; Kobayashi, Chiaki*

Proc. of 11th Symp. on Accelerator Sci. and Technol., p.165 - 167, 1997/00

no abstracts in English

Oral presentation

Measurement of stress and imaging in the vicinity of fatigue crack in steel material using synchrotron radiation white X-rays

Kiriyama, Koji; Shibano, Junichi*; Kajiwara, Kentaro*; Shobu, Takahisa; Suzuki, Kenji*; Kaneko, Hiroshi; Nishimura, Suguru*; Arai, Takayuki*; Miura, Setsuo*; Kobayashi, Michiaki*

no journal, , 

Residual stress measurement is important to understand Stress Corrosion Cracking process. In this study, measurements of imaging and inner stress mapping around a crack-tip in steel material (alpha-Fe) have performed at beam-line BL14B1 and BL28B2 at SPring-8. The results showed that artificial cracking in the sample was clearly measured by imaging and that stress maps quite correspond to the result of imaging. Therefore, these methods are very effective tool for measurement of inner state of steel material.

Oral presentation

Computerized tomography of fatigue cracks in steel material using synchrotron radiation white X-rays

Kiriyama, Koji; Shibano, Junichi*; Kajiwara, Kentaro*; Shobu, Takahisa; Suzuki, Kenji*; Arai, Takayuki*; Miura, Setsuo*; Kobayashi, Michiaki*

no journal, , 

Residual stress measurement and fractographycal study of cracks are important to understand SCC (Stress Corrosion Cracking) process. In this study, CT (Computerized Tomography) imaging of steel material (alpha-Fe) have performed at BL28B2 at SPring-8. The result showed that artificial crack in the sample was clearly measured by CT, and CT are very effective tool to measure an inner state of steel material.

Oral presentation

Study of computerized tomography and strain mapping in the vicinity of crack tip in steel material using synchrotron white X-ray

Shibano, Junichi*; Kajiwara, Kentaro*; Kiriyama, Koji; Shobu, Takahisa; Suzuki, Kenji*; Arai, Takayuki*; Miura, Setsuo*; Kobayashi, Michiaki*

no journal, , 

Oral presentation

The Measurement of strain distribution and CT observation of crack in 5 mm steel bar using synchrotron radiation white X-rays

Shibano, Junichi*; Kiriyama, Koji; Kajiwara, Kentaro*; Shobu, Takahisa; Suzuki, Kenji*; Arai, Takayuki*; Miura, Setsuo*; Kobayashi, Michiaki*

no journal, , 

no abstracts in English

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