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Kumada, Takayuki; Miura, Daisuke*; Akutsu, Kazuhiro*; Oku, Takayuki; Torikai, Naoya*; Niizeki, Tomotake*
Hamon, 32(4), p.165 - 168, 2022/11
We demonstrated the advantage of spin-contrast-variation neutron reflectometry on the structure analysis of buried interface between resin and porous silica layers. The interface structure was not reproduced by the normal Gaussian model, but by the asymmetric interface model where crosslinked polymer chains neither permeate the pore nor follow the surface roughness of the silica layer.
Amemiya, Kenta*; Sakamaki, Masako*; Mizusawa, Mari*; Takeda, Masayasu
JPS Conference Proceedings (Internet), 8, p.034004_1 - 034004_6, 2015/09
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.
Takeda, Masayasu
no journal, ,
no abstracts in English
Onoda, Hiroshige*; Hanashima, Takayasu*; Takeda, Masayasu; Yanagihara, Hideto*
no journal, ,
no abstracts in English
