A horizontal two-axis diffractometer for high-energy X-ray diffraction using synchrotron radiation on bending magnet beamline BL04B2 at SPring-8

Kohara, Shinji; Suzuya, Kentaro; Kashihara, Yasuharu; Matsumoto, Namiko; Umesaki, Norimasa; Sakai, Ichiro

doi:10.1016/s0168-9002(01)00630-1

Cited by 151 publications

(111 citation statements)

References 7 publications

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“…The measurements were carried out using the horizontal two-axis diffractmeter building at the BL04B2 high energy monochromatic bending magnet beamline of SPring-8 [3,4]. The monochrome meter is a bent Si(220) crystal, which provides 61.7 keV (λ = 0.020 nm) incident photons.…”

Section: Methodsmentioning

confidence: 99%

Nano structure of low crystallinity carbon materials analyzed by using high energy X-ray diffraction

Oshida¹,

Nakazawa²,

Osawa³

et al. 2009

Open Physics

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Abstract:In this study, we tried to characterize a kind of low crystallinity carbon materials. The structure of polyparaphenylene(PPP)-based carbon was analyzed by means of high energy X-ray diffraction using the apparatus of SPring-8. The experimental results revealed the existence of basic structural units (BSU) in the highly disordered materials like PPP-based carbon. It is thought that the PPP-based carbons consist of small turbostratic particles, which have a few piled up poly-aromatic layers. The structure of the PPP-based carbon which seemed to be amorphous was estimated to have hexagonal carbon layers with the size of up to 1 nm. The pores in the PPP-based carbon seem to be clearances formed among the BSUs and amorphous carbon. The pore size of PPP-based carbon was estimated from the result of N 2 absorption measurement. The experimental results suggested that the lithium ion charge mechanism in the PPP-based carbon differs from that in graphite. PACS

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Section: Methodsmentioning

confidence: 99%

Nano structure of low crystallinity carbon materials analyzed by using high energy X-ray diffraction

Oshida¹,

Nakazawa²,

Osawa³

et al. 2009

Open Physics

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“…16,17 All of the measurements were performed at 298 K. Monochromatized X-rays of 61.6 keV were obtained using a Si (220) monochromator. The observed X-ray intensity was corrected for absorption, 18 polarization and incoherent scatterings 19,20 to obtain coherent scattering intensities, Icoh(Q).…”

Section: Hexrd Measurementsmentioning

confidence: 99%

Specific Solvation of Benzyl Methacrylate in 1-Ethyl-3-methylimidazolium Bis(trifluoromethanesulfonyl)amide Ionic Liquid

et al. 2013

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“…The HEXRD experiments were carried out using a twoaxis diffractometer dedicated for disordered materials 7) at the beam line BL04B2 of SPring-8, Japan. The incident X-ray energy was chosen as 113.6 keV (0.10965 ¡) and the scattered X-rays were collected using an intrinsic germanium detector.…”

Section: High-energy X-ray Diffractionmentioning

confidence: 99%

Structural Features of the Extraordinary Low Glass Transition Temperature for Au65Cu18Si17 Bulk Metallic Glass

et al. 2013

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Au 65 Cu 18 Si 17 bulk metallic glass (BMG) exhibits an extraordinary low glass transition temperature (<100°C) and a wide supercooled liquid region. In order to elucidate the structural features of the extraordinary low glass transition temperature and high glass forming ability of the Au 65 Cu 18 Si 17 BMG, high-energy X-ray diffraction (HEXRD) and Extended X-ray Absorption Fine Structure (EXAFS) measurements were carried out using synchrotron radiation. A sharp first peak and oscillation of the structure factor S(Q) up to the high wave number Q can be attributed to the dominant weighting factor of the AuAu correlation over others. A reverse Monte Carlo (RMC) simulation was applied simultaneously to the HEXRD and EXAFS data. The obtained RMC model shows a quite highly dense packed structure with large amount of icosahedral type clusters around Au atoms while small ones around Si atoms. The partial CuCu pair distribution function g Cu,Cu (r) shows a sharp peak at a short interatomic distance, i.e., 2.38 ¡. The CuCu pairs with short interatomic distances and the large thermal fluctuation around Cu atoms are considered to be one of the structural characteristics of the low glass transition temperature of the Au 65 Cu 18 Si 17 BMG.

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A horizontal two-axis diffractometer for high-energy X-ray diffraction using synchrotron radiation on bending magnet beamline BL04B2 at SPring-8

Cited by 151 publications

References 7 publications

Nano structure of low crystallinity carbon materials analyzed by using high energy X-ray diffraction

Nano structure of low crystallinity carbon materials analyzed by using high energy X-ray diffraction

Specific Solvation of Benzyl Methacrylate in 1-Ethyl-3-methylimidazolium Bis(trifluoromethanesulfonyl)amide Ionic Liquid

Structural Features of the Extraordinary Low Glass Transition Temperature for Au<sub>65</sub>Cu<sub>18</sub>Si<sub>17</sub> Bulk Metallic Glass

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