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Journal Articles

Cryogenic impact fracture behavior of a high-Mn austenitic steel using electron backscatter diffraction and neutron Bragg-edge transmission imaging

Wang, Y. W.*; Wang, H. H.*; Su, Y. H.; Xu, P. G.; Shinohara, Takenao

Materials Science & Engineering A, 887, p.145768_1 - 145768_13, 2023/11

Journal Articles

Corrigendum to "Visualization of the working fluid in a flat-plate pulsating heat pipe by neutron radiography" [International Journal of Heat and Mass Transfer 185 (2022) 122336]

Yasuda, Yosuke*; Matsumoto, Yoshihiro*; Shinohara, Takenao; Nabeshima, Fumika*; Horiuchi, Keisuke*; Nagai, Hiroki*

International Journal of Heat and Mass Transfer, 213, p.124291_1 - 124291_2, 2023/10

Journal Articles

Update of Bragg edge analysis software "GUI-RITS"

Oikawa, Kenichi; Sato, Hirotaka*; Watanabe, Kenichi*; Su, Y. H.; Shinohara, Takenao; Kai, Tetsuya; Kiyanagi, Yoshiaki*; Hasemi, Hiroyuki

Journal of Physics; Conference Series, 2605, p.012013_1 - 012013_6, 2023/10

Journal Articles

Development of an areal density imaging for boron and other elements

Tsuchikawa, Yusuke; Kai, Tetsuya; Abe, Yuta; Oikawa, Kenichi; Parker, J. D.*; Shinohara, Takenao; Sato, Ikken

Journal of Physics; Conference Series, 2605, p.012022_1 - 012022_6, 2023/10

We developed a method to obtain the areal density distribution of boron, which has a large neutron cross section, by means of an energy resolved neutron imaging. Commonly in a measurement of elements with very high neutron sensitivity, the quantitative measurement becomes more difficult with the amount of element due to the neutron self-shielding effect. To avoid this effect, an energy-resolved method using known cross section data was attempted, and a quantitative imaging of such elements was demonstrated at the MLF of J-PARC. This presentation introduces a measurement of melted simulated-fuel assemblies obtained in the research of the Fukushima Daiichi Nuclear Power Plant after the severe accident. Energy-dependent neutron transmission rates of the samples were measured by a neutron imaging detector, and were analyzed to obtained the areal density of boron at each position.

Journal Articles

Introduction to Neutron Radiography Facilities at the Japan Research Reactor-3

Kurita, Keisuke; Iikura, Hiroshi; Tsuchikawa, Yusuke; Kai, Tetsuya; Shinohara, Takenao; Odaira, Naoya*; Ito, Daisuke*; Saito, Yasushi*; Matsubayashi, Masahito

Journal of Physics; Conference Series, 2605, p.012005_1 - 012005_6, 2023/10

The Japan Research Ractor-3 (JRR-3) is operation resumed on February 26, 2021, and the shared use was also restarted in July, 2021. With the resumption of JRR-3 operation, two imaging facilities called TNRF and CNRF have also resumed their utilization. In this presentation, we report the details of these two neutron facilities.

Journal Articles

Residual stress relaxation by bending fatigue in induction-hardened gear studied by neutron Bragg edge transmission imaging and X-ray diffraction

Su, Y. H.; Oikawa, Kenichi; Shinohara, Takenao; Kai, Tetsuya; Horino, Takashi*; Idohara, Osamu*; Misaka, Yoshitaka*; Tomota, Yo*

International Journal of Fatigue, 174, p.107729_1 - 107729_12, 2023/09

 Times Cited Count:1 Percentile:63.29(Engineering, Mechanical)

Journal Articles

3D water management in polymer electrolyte fuel cells toward fuel cell electric vehicles

Yoshimune, Wataru*; Higuchi, Yuki*; Kato, Akihiko*; Hibi, Shogo*; Yamaguchi, Satoshi*; Matsumoto, Yoshihiro*; Hayashida, Hirotoshi*; Nozaki, Hiroshi*; Shinohara, Takenao; Kato, Satoru*

ACS Energy Letters (Internet), 8(8), p.3485 - 3487, 2023/08

Journal Articles

Neutron resonance absorption imaging of simulated high-level radioactive waste in borosilicate glass

Oba, Yojiro; Motokawa, Ryuhei; Kaneko, Koji; Nagai, Takayuki; Tsuchikawa, Yusuke; Shinohara, Takenao; Parker, J. D.*; Okamoto, Yoshihiro

Scientific Reports (Internet), 13, p.10071_1 - 10071_8, 2023/06

 Times Cited Count:0 Percentile:0.01

Journal Articles

Mechanical surface treatment studies by Bragg edge neutron imaging

Ramadhan, R. S.*; Glaser, D.*; Soyama, Hitoshi*; Kockelmann, W.*; Shinohara, Takenao; Pirling, T.*; Fitzpatrick, M. E.*; Tremsin, A. S.*

Acta Materialia, 239, p.118259_1 - 118259_12, 2022/10

 Times Cited Count:2 Percentile:48.15(Materials Science, Multidisciplinary)

Journal Articles

Spatial distribution and preferred orientation of crystalline microstructure of lead-bismuth eutectic

Ito, Daisuke*; Sato, Hirotaka*; Odaira, Naoya*; Saito, Yasushi*; Parker, J. D.*; Shinohara, Takenao; Kai, Tetsuya; Oikawa, Kenichi

Journal of Nuclear Materials, 569, p.153921_1 - 153921_6, 2022/10

 Times Cited Count:1 Percentile:33.72(Materials Science, Multidisciplinary)

Journal Articles

Fast phase differentiation between liquid-water and ice by pulsed neutron imaging with gated image intensifier

Isegawa, Kazuhisa; Setoyama, Daigo*; Higuchi, Yuki*; Matsumoto, Yoshihiro*; Nagai, Yasutaka*; Shinohara, Takenao

Nuclear Instruments and Methods in Physics Research A, 1040, p.167260_1 - 167260_10, 2022/10

 Times Cited Count:1 Percentile:34.54(Instruments & Instrumentation)

Journal Articles

Neutron imaging of generated water inside polymer electrolyte fuel cell using newly-developed gas diffusion layer with gas flow channels during power generation

Nasu, Mitsunori*; Yanai, Hiroshi*; Hirayama, Naoki*; Adachi, Hironori*; Kakizawa, Yu*; Shirase, Yuto*; Nishiyama, Hiromichi*; Kawamoto, Teppei*; Inukai, Junji*; Shinohara, Takenao; et al.

Journal of Power Sources, 530, p.231251_1 - 231251_11, 2022/05

 Times Cited Count:9 Percentile:88.61(Chemistry, Physical)

Journal Articles

Bragg edge tomography characterization of additively manufactured 316L steel

Busi, M.*; Polatidis, E.*; Malamud, F.*; Kockelmann, W.*; Morgano, M.*; Kaestner, A.*; Tremsin, A.*; Kalentics, N.*; Log$'e$, R.*; Leinenbach, C.*; et al.

Physical Review Materials (Internet), 6(5), p.053602_1 - 053602_8, 2022/05

 Times Cited Count:3 Percentile:73.76(Materials Science, Multidisciplinary)

Journal Articles

Non-destructive characterization of the spatial variation of $$gamma$$/$$gamma$$$$^{'}$$ lattice misfit in a single-crystal Ni-based superalloy by energy-resolved neutron imaging

Malamud, F.*; Santisteban, J. R.*; Gao, Y.*; Shinohara, Takenao; Oikawa, Kenichi; Tremsin, A.*

Journal of Applied Crystallography, 55(2), p.228 - 239, 2022/04

 Times Cited Count:1 Percentile:31.49(Chemistry, Multidisciplinary)

Journal Articles

Tracer diffusion coefficients measurements on LaPO$$_{4}$$-dispersed LATP by means of neutron radiography

Song, F.*; Chen, H.*; Hayashida, Hirotoshi*; Kai, Tetsuya; Shinohara, Takenao; Yabutsuka, Takeshi*; Yao, Takeshi*; Takai, Shigeomi*

Solid State Ionics, 377, p.115873_1 - 115873_6, 2022/04

 Times Cited Count:0 Percentile:33.33(Chemistry, Physical)

Journal Articles

Strain distribution visualization of punched electrical steel sheets using neutron Bragg-edge transmission imaging

Sasada, Seiji*; Takahashi, Yoshihito*; Takeuchi, Keisuke*; Hiroi, Kosuke; Su, Y. H.; Shinohara, Takenao; Watanabe, Kenichi*; Uritani, Akira*

Japanese Journal of Applied Physics, 61(4), p.046004_1 - 046004_8, 2022/03

Journal Articles

High-spatial-resolution measurement of magnetization distribution using polarized neutron imaging

Sasada, Seiji*; Hiroi, Kosuke; Osanai, Kenta*; Shinohara, Takenao; Watanabe, K.*; Uritani, Akira*

Japanese Journal of Applied Physics, 60(12), p.126003_1 - 126003_6, 2021/12

 Times Cited Count:0 Percentile:8.23(Physics, Applied)

Journal Articles

The First application of a Gd$$_{3}$$Al$$_{2}$$Ga$$_{3}$$O$$_{12}$$:Ce single-crystal scintillator to neutron radiography

Isegawa, Kazuhisa; Setoyama, Daigo*; Kimura, Hidehiko*; Shinohara, Takenao

Journal of Imaging (Internet), 7(11), p.232_1 - 232_9, 2021/11

Neutron radiography is regarded as complementary to X-ray radiography in terms of transmittance through materials, but its spatial resolution is still insufficient. In order to achieve higher resolution in neutron imaging, several approaches have been adopted such as optical magnification and event centroiding, and the authors focused on modification of the scintillator in this paper. A Gd$$_{3}$$Al$$_{2}$$Ga$$_{3}$$O$$_{12}$$:Ce single-crystal scintillator was applied to neutron radiography for the first time and was achieved a spatial resolution of 10.5 micrometers. The results indicate that this material can be a powerful candidate for a new neutron scintillator providing a resolution in micrometer order by optimizing the optical system and increasing the scintillator luminosity.

Journal Articles

Monitoring residual strain relaxation and preferred grain orientation of additively manufactured Inconel 625 by in-situ neutron imaging

Tremsin, A. S.*; Gao, Y.*; Makinde, A.*; Bilheux, H. Z.*; Bilheux, J. C.*; An, K.*; Shinohara, Takenao; Oikawa, Kenichi

Additive Manufacturing, 46, p.102130_1 - 102130_20, 2021/10

 Times Cited Count:6 Percentile:45.37(Engineering, Manufacturing)

Journal Articles

Calibration and optimization of Bragg edge analysis in energy-resolved neutron imaging experiments

Tremsin, A. S.*; Bilheux, H. Z.*; Bilheux, J. C.*; Shinohara, Takenao; Oikawa, Kenichi; Gao, Y.*

Nuclear Instruments and Methods in Physics Research A, 1009, p.165493_1 - 165493_12, 2021/09

 Times Cited Count:4 Percentile:58.42(Instruments & Instrumentation)

358 (Records 1-20 displayed on this page)