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Journal Articles

In situ neutron reflectometry analysis of interfacial structure formation between phenolic resin and silica during curing

Izumi, Atsushi*; Shudo, Yasuyuki*; Shibayama, Mitsuhiro*; Miyata, Noboru*; Miyazaki, Tsukasa*; Aoki, Hiroyuki

Langmuir, 37(47), p.13867 - 13872, 2021/11

Journal Articles

Improved performance of wide bandwidth neutron-spin polarizer due to ferromagnetic interlayer exchange coupling

Maruyama, Ryuji; Yamazaki, Dai; Aoki, Hiroyuki; Akutsu, Kazuhiro*; Hanashima, Takayasu*; Miyata, Noboru*; Soyama, Kazuhiko; Bigault, T.*; Saerbeck, T.*; Courtois, P.*

Journal of Applied Physics, 130(8), p.083904_1 - 083904_10, 2021/08

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

Journal Articles

Layered structure in the crystalline adsorption layer and the leaching process of poly(vinyl alcohol) revealed by neutron reflectivity

Miyazaki, Tsukasa*; Miyata, Noboru*; Arima, Hiroshi*; Kira, Hiroshi*; Ouchi, Keiichi*; Kasai, Satoshi*; Tsumura, Yoshihiro*; Aoki, Hiroyuki

Langmuir, 37(32), p.9873 - 9882, 2021/08

 Times Cited Count:0 Percentile:0(Chemistry, Multidisciplinary)

Journal Articles

Improvement in sputtering rate uniformity over large deposition area of large-scale ion beam sputtering system

Maruyama, Ryuji; Yamazaki, Dai; Akutsu, Kazuhiro*; Hanashima, Takayasu*; Miyata, Noboru*; Aoki, Hiroyuki; Soyama, Kazuhiko

JPS Conference Proceedings (Internet), 33, p.011092_1 - 011092_6, 2021/03

no abstracts in English

Journal Articles

Fine-structure analysis of perhydropolysilazane-derived nano layers in deep-buried condition using polarized neutron reflectometry

Akutsu, Kazuhiro*; Kira, Hiroshi*; Miyata, Noboru*; Hanashima, Takayasu*; Miyazaki, Tsukasa*; Kasai, Satoshi*; Yamazaki, Dai; Soyama, Kazuhiko; Aoki, Hiroyuki

Polymers (Internet), 12(10), p.2180_1 - 2180_10, 2020/10

 Times Cited Count:0 Percentile:0(Polymer Science)

Journal Articles

Interfacial cross-link inhomogeneity of a phenolic resin on a silica surface as revealed by X-ray and neutron reflection measurements

Izumi, Atsushi*; Shudo, Yasuyuki*; Shibayama, Mitsuhiro*; Yoshida, Tessei*; Miyata, Noboru*; Miyazaki, Tsukasa*; Aoki, Hiroyuki

Macromolecules, 53(10), p.4082 - 4089, 2020/05

 Times Cited Count:4 Percentile:62.52(Polymer Science)

Journal Articles

Detailed structural study on the poly(vinyl alcohol) adsorption layers on a Si substrate with solvent vapor-induced swelling

Miyazaki, Tsukasa*; Miyata, Noboru*; Yoshida, Tessei*; Arima, Hiroshi*; Tsumura, Yoshihiro*; Torikai, Naoya*; Aoki, Hiroyuki; Yamamoto, Katsuhiro*; Kanaya, Toshiji*; Kawaguchi, Daisuke*; et al.

Langmuir, 36(13), p.3415 - 3424, 2020/04

 Times Cited Count:6 Percentile:75.63(Chemistry, Multidisciplinary)

Journal Articles

Elucidation of a heterogeneous layered structure in the thickness direction of poly(vinyl alcohol) films with solvent vapor-induced swelling

Miyazaki, Tsukasa*; Miyata, Noboru*; Asada, Mitsunori*; Tsumura, Yoshihiro*; Torikai, Naoya*; Aoki, Hiroyuki; Yamamoto, Katsuhiro*; Kanaya, Toshiji*; Kawaguchi, Daisuke*; Tanaka, Keiji*

Langmuir, 35(34), p.11099 - 11107, 2019/08

 Times Cited Count:10 Percentile:68.76(Chemistry, Multidisciplinary)

Journal Articles

Highlight of recent sample environment at J-PARC MLF

Kawamura, Seiko; Hattori, Takanori; Harjo, S.; Ikeda, Kazutaka*; Miyata, Noboru*; Miyazaki, Tsukasa*; Aoki, Hiroyuki; Watanabe, Masao; Sakaguchi, Yoshifumi*; Oku, Takayuki

Neutron News, 30(1), p.11 - 13, 2019/05

In Japanese neutron scattering facilities, some SE equipment that are frequently used at an instrument, such as the closed-cycle refrigerator (CCR), have been prepared for the instrument as standard SE. They are operated for user experiments by the instrument group. The advantage of this practice is that they can optimize the design of the SE for the instrument and can directly respond to users' requests. On the other hand, the SE team in the Materials and Life Science Experimental Facility (MLF) in J-PARC has managed commonly used SE to allow neutron experiments with more advanced SE. In this report, recent SE in the MLF is introduced. Highlighted are the SE in BL11, BL19, BL21 and BL17 and other SE recently progressed by the SE team.

Journal Articles

Development of high-polarization Fe/Ge neutron polarizing supermirror; Possibility of fine-tuning of scattering length density in ion beam sputtering

Maruyama, Ryuji; Yamazaki, Dai; Akutsu, Kazuhiro*; Hanashima, Takayasu*; Miyata, Noboru*; Aoki, Hiroyuki; Takeda, Masayasu; Soyama, Kazuhiko

Nuclear Instruments and Methods in Physics Research A, 888, p.70 - 78, 2018/04

 Times Cited Count:3 Percentile:45.99(Instruments & Instrumentation)

The multilayer structure of Fe/Si and Fe/Ge systems fabricated by ion beam sputtering (IBS) was investigated using X-ray and polarized neutron reflectivity measurements and scanning transmission electron microscopy with energy-dispersive X-ray analysis. The obtained result revealed that the incorporation of sputtering gas particles (Ar) in the Ge layer gives rise to a marked reduction in the neutron scattering length density (SLD) and contributes to the SLD contrast between the Fe and Ge layers almost vanishing for spin-down neutrons. This leads to a possibility of fine-tuning of the SLD for the IBS, which is required to realize a high polarization efficiency of a neutron polarizing supermirror. Fe/Ge polarizing supermirror with $$m=5$$ fabricated showed a spin-up reflectivity of 0.70 at the critical momentum transfer. The polarization was higher than 0.985 for the $$q_z$$ range where the correction for the polarization inefficiencies of the beamline works properly.

Journal Articles

Study of "buried" interfaces of Mo/Si multilayers using soft-X-ray emission spectroscopy

Miyata, Noboru; Ishikawa, Sadayuki*; Yanagihara, Mihiro*; Watanabe, Makoto*

Photon Factory News, 18(2), p.25 - 29, 2000/08

no abstracts in English

Journal Articles

Varied-line-spacing laminar-type holographic grating for the standard soft X-ray flat-field spectrograph

Koike, Masato; Namioka, Takeshi*; Gullikson, E. M.*; Harada, Yoshihisa*; Ishikawa, Sadayuki*; Imazono, Takashi*; Mrowka, S.*; Miyata, Noboru; Yanagihara, Mihiro*; Underwood, J. H.*; et al.

Soft X-Ray and EUV Imaging Systems (Proceedings of SPIE Vol.4146), p.163 - 170, 2000/00

no abstracts in English

Journal Articles

Comparison of mechanically ruled versus holographically varied line-spacing gratings for a soft-X-ray flat-field spectrograph

Yamazaki, Takashi; Gullikson, E. M.*; Miyata, Noboru*; Koike, Masato; Harada, Yoshihisa*; Mrowka, S.*; Kleineberg, U.*; Underwood, J. H.*; Yanagihara, Mihiro*; Sano, Kazuo*

Applied Optics, 38(19), p.4001 - 4003, 1999/07

 Times Cited Count:22 Percentile:70.65(Optics)

no abstracts in English

Oral presentation

A New polarized neutron reflectometer SHARAKU at Material Life Science Facility (MLF) at Japan Proton Accelerator Research Complex (J-PARC)

Takeda, Masayasu; Yamazaki, Dai; Soyama, Kazuhiko; Hayashida, Hirotoshi; To, Kentaro; Yamagishi, Hideshi*; Katagiri, Masaki*; Sakasai, Kaoru; Maruyama, Ryuji; Mizusawa, Tazuko*; et al.

no journal, , 

Oral presentation

A New polarized neutron reflectometer at the intense pulsed neutron source of the Materials and Life Science Experimental Facility (MLF) of J-PARC

Takeda, Masayasu; Yamazaki, Dai; Soyama, Kazuhiko; Hayashida, Hirotoshi; To, Kentaro; Yamagishi, Hideshi*; Katagiri, Masaki*; Sakasai, Kaoru; Maruyama, Ryuji; Mizusawa, Tazuko*; et al.

no journal, , 

Oral presentation

Current status of the new polarized neutron reflectometer SHARAKU at Material Life Science Facility (MLF)

Takeda, Masayasu; Yamazaki, Dai; Soyama, Kazuhiko; To, Kentaro; Yamagishi, Hideshi*; Katagiri, Masaki*; Sakasai, Kaoru; Mizusawa, Tazuko*; Miyata, Noboru*; Kasai, Satoshi*; et al.

no journal, , 

Oral presentation

Polarized neutron reflectometer SHARAKU with 2-D MWPC in J-PARC

Yamazaki, Dai; Soyama, Kazuhiko; Miyata, Noboru*; Kasai, Satoshi*; Akutsu, Kazuhiro*; Hanashima, Takayasu*; Kubota, Masato; Aoki, Hiroyuki; Suzuki, Junichi*; To, Kentaro; et al.

no journal, , 

Polarized neutron reflectometry is one of the powerful methods to investigate various phenomena on the surfaces and interfaces of a variety of films with layered structures such as magnetic materials. In this instrument, a two-dimensional position-sensitive neutron detection system consists of multi-wire proportional chamber (MWPC) with helium-3 gas and its data reduction software have been developed for the measurement of off-specular reflectivity and grazing incidence small-angle neutron scattering (GISANS). Each wire signal is read out by amplifier-shaper-discriminator (ASD) individually to meet with demands for a fast counting response and high spatial resolution for the measurement at intense pulsed neutron sources. The pitch between anode/cathode wires is 1.0 mm. The spatial resolution was 1.8 mm. We report characterization results of 2-D MWPC system at BL17 and its applications to neutron reflectivity measurements.

Oral presentation

Measurement of Li distribution in solid electrolyte using neutron reflectivity and nuclear reaction analysis

Sugiyama, Issei*; Saito, Masahiro*; Miyata, Noboru*; Hanashima, Takayasu*; Akutsu, Kazuhiro*; Aoki, Yasuhito*; Otsuka, Yuji*; Takeda, Masayasu; Shimizu, Ryota*; Hitosugi, Taro*

no journal, , 

no abstracts in English

Oral presentation

Current status of a polarized neutron reflectometer "SHARAKU" in J-PARC

Soyama, Kazuhiko; Aoki, Hiroyuki; Yamazaki, Dai; Miyata, Noboru*; Akutsu, Kazuhiro*; Hanashima, Takayasu*; Kasai, Satoshi*; Suzuki, Junichi*

no journal, , 

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