Search Results 1-20 of 28

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  • Impact of Local High Doses of Radiation by Neutron Activated Mn Dioxide Powder in Rat Lungs: Protracted Pathologic Damage Initiated by Internal Exposure

    Shichijo Kazuko , Takatsuji Toshihiro , Abishev Zhaslan , Uzbekov Darkhan , Chaizhunusova Nailya , Shabdarbaeva Dariya , Niino Daisuke , Kurisu Minako , Takahashi Yoshio , Stepanenko Valeriy , Azhimkhanov Almas , Hoshi Masaharu

    … Synchrotron radiation-X-ray fluorescence-X-ray absorption near-edge structure (SR-XRF-XANES) was utilized for the chemical analysis of the activated 56Mn embedded in lung tissues. …

    Biomedicines 8(6), 171, 2020-06-23

    IR 

  • X-ray Transmission Imaging of Painting by Synchrotron Absorption Edge Radiography  [in Japanese]

    中井 泉 , 平山 愛里 , 阿部 善也 , 小野 慎之介 , 星野 真人 , 上杉 健太朗 , 八木 直人

    X線分析の進歩 (50), 261-269, 2019-03

  • Force imaging of Ge surfaces by X-ray aided NC-AFM (XANAM)  [in Japanese]

    Suzuki Shushi , Mukai Shingo , Chun Wang-Jae , Nomura Masaharu , Fujimori Syuntarou , Ikeda Mitsuhisa , Makihara Katsunori , Miyazaki Seiichi , Asakura Kiyotaka

    … <p>我々は、試料表面の化学分析をナノスケールで行うため、NC-AFMと放射光X線を組み合わせたX線支援非接触原子間力顕微鏡（XANAM）を開発してきた。 … 前回では、X線照射下のGe試料表面でも、Ge-K X線吸収端の近傍で力の変化が誘起されうることを報告した。 …

    Abstract book of Annual Meeting of the Japan Society of Vacuum and Surface Science 2019(0), 3Gp05, 2019

    J-STAGE 

  • Microscopic spectroscopy on Ge surfaces by X-ray aided NC-AFM (XANAM)  [in Japanese]

    Suzuki Shushi , Mukai Shingo , Chun Wang-Jae , Nomura Masaharu , Asakura Kiyotaka

    … 我々はNC-AFMと放射光X線を組み合わせたX線支援非接触原子間力顕微鏡（XANAM）の開発を行ってきた。 … X線照射下のAu表面やNi表面において、それぞれのX線吸収端エネルギー付近で、探針-試料間の相互作用が変化する様子を分析し、この現象を利用した表面元素イメージング法を報告してきた。 …

    Abstract of annual meeting of the Surface Science of Japan 2018(0), 125, 2018

    J-STAGE 

  • Study on Chromium Accumulation Mechanism of Chinese Break Fern (<i>Pteris Vittata</i> L.) by Synchrotron Radiation X-ray Fluorescence Analysis  [in Japanese]

    HONDA Mao , KITAJIMA Nobuyuki , ABE Tomoko , UMEMURA Tomonari , HOKURA Akiko

    … ヒ素超集積植物として知られるモエジマシダにCr(VI)とCr(III)溶液を添加して栽培し，放射光蛍光X線分析を行った．添加には，K<sub>2</sub>Cr<sub>2</sub>O<sub>7</sub>とCrCl<sub>3</sub>・6H<sub>2</sub>Oを溶解して調製した50 ppmのCr(VI)とCr(III)溶液を用いた．放射光蛍光X線イメージングによって，シダの組織に蓄積されたクロムの分布を可視化した．葉，茎，根のすべての部位 …

    BUNSEKI KAGAKU 64(11), 801-810, 2015

    J-STAGE 

  • W-Concentration 3D Mapping in SKH51 Steel by Dual-Energy K-Absorption Edge Subtraction Imaging

    Kobayashi Masakazu , Toda Hiroyuki , Takijiri Akihide , Takeuchi Akihisa , Suzuki Yoshio , Uesugi Kentaro

    … Three-dimensional W-concentration mapping is attempted in a high speed tool steel, SKH51 by applying K-absorption edge subtraction imaging utilizing high energy X-ray in synchrotron radiation facility. … Effect of a sample-to-detector distance on spatial resolution had already been reported in high-energy X-ray microtomography. …

    ISIJ International 54(1), 141-147, 2014

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  • High-temperature X-ray Imaging Study of Simulated High-level Waste Glass Melt

    OKAMOTO Yoshihiro , NAKADA Masami , AKABORI Mitsuo , KOMAMINE Satoshi , FUKUI Toshiki , OCHI Eiji , NITANI Hiroaki , NOMURA Masaharu

    … The molten state of simulated high-level waste glass and the behavior of ruthenium element in the melt were investigated by using synchrotron radiation based X-ray imaging technique. … X-ray intensity was obtained easily by digitalizing gray-scale values in the image. …

    Electrochemistry 81(7), 543-546, 2013-07-05

    J-STAGE  References (5)

  • Development of analytical dual-energy micro-tomography and its application to particles collected from Itokawa surface.  [in Japanese]

    Tsuchiyama Akira , Nagano Takashi , Imai Yuta , Nakano Tsukasa , Uesugi Kentaro , Uesugi Masayuki , Takeuchi Akihisa , Suzuki Yoshio , Noguchi Ryo , Matsumoto Toru , Matsuno Junya

    FeのK吸収端（7.112 keV）を挟む２つのエネルギー（7 keVと8 keV）で同一のサンプルをCT撮影することにより、多くの鉱物の同定や固溶体組成を得ることを可能にし、鉱物の３次元空間分布を得る手法 （analytical deal-energy micro-tomography）の開発に成功した。この手法を、はやぶさ探査機により小惑星イトカワ表面から採取された粒子（30-180 μ …

    Abstracts for Annual Meeting of Japan Association of Mineralogical Sciences 2012(0), 193, 2012

    J-STAGE 

  • Micro-beam XRF and Fe-K Edge XAFS on the Cross Section of the Rust Layer Formed on a Weathering Steel

    NAGOSHI Masayasu , KAWANO Takashi , KAGE Isamu , HAYAKAWA Shinjiro

    … Micro-beam X-ray fluorescence (XRF) and X-ray absorption fine structure (XAFS) techniques have been applied, for the first time, to the cross sections of a rust layer on a weathering steel exposed for 38 years to the atmospheric environment. …

    ISIJ International 51(1), 93-98, 2011-01-15

    J-STAGE  References (15)

  • Analytical Aspects of Waterlogged Wood in Historical Shipwrecks

    FORS Yvonne , JALILEHVAND Farideh , SANDSTRÖM Magnus

    … Crystalline salts formed on waterlogged wood are identified by powder X-ray diffraction while X-ray fluorescence measurements along wood cores show penetration profiles of contaminating elements. …

    Analytical Sciences 27(8), 785, 2011

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  • Study on Accumulation Mechanism of Cadmium in Rice (Oriza sativa L.) by Micro-XRF Imaging and X-ray Absorption Fine Structure Analysis Utilizing Synchrotron Radiation  [in Japanese]

    YAMAOKA Wakiko , TAKADA Saori , TAKEHISA Hinako , HAYASHI Yoriko , HOKURA Akiko , TERADA Yasuko , ABE Tomoko , NAKAI Izumi

    … イネにおけるCdの蓄積機構に関する新しい知見を得ることを目的として，植物体組織を非破壊で2次元多元素同時分析が可能な放射光マイクロビーム蛍光X線（SR-μ-XRF）分析とX線吸収微細構造（XAFS）解析を応用した．その結果，Cdを添加して栽培した二品種のイネ（日本晴，密陽23号）について，茎におけるCd及び植物必須元素の蓄積部位と，各器官（根，茎，葉）に蓄積されたCd化学形態が明らかに …

    BUNSEKI KAGAKU 59(6), 463-475, 2010-06-05

    J-STAGE  References (36)

  • Cd Storage Mechanism of Cd-accumulating Plants by Micro-XRF Imaging and Micro-XANES Analyses using High-energy Synchrotron Radiation

    Hokura Akiko , Izumi Nakai

    … 我々は放射光X線マイクロビームをプローブとする蛍光X線分析とX線吸収微細構造（XAFS）解析をこれらの植物に適用し、重元素の蓄積部位と化学形態を明らかにすることで、その蓄積機構の解明を目指している[1-2]。 …

    Plant and Cell Physiology Supplement 2009(0), S0010-S0010, 2009

    J-STAGE 

  • Non-destructive search for micrometer-scale minerals from the inside of rock samples with synchrotron radiation X-ray: a case study for platinum-group minerals  [in Japanese]

    KOGISO Tetsu , SUZUKI Katsuhiko , SUZUKI Toshihiro , UESUGI Kentaro , TAKEUCHI Akihisa , SUZUKI Yoshio

    … Synchrotron radiation X-ray is characterized by its ultra-high brightness, which is suitable for non-destructive analysis of rock samples at micrometer scale. … We have developed new procedures for non-destructively detecting tiny secondary minerals from the inside of rock samples with subtraction imaging and microbeam X-ray fluorescence (μ-XRF) techniques. …

    Chikyukagaku 42(4), 217-228, 2008

    J-STAGE  References (23)

  • X-ray refraction contrast imaging with in-line configuration on human and rat osteoarthritis of knee joints

    Kimata Takahito , Oka Hiroshi , Mori Koichi , Sato Hitoshi , Shimao Daisuke , Nakamura Hiroshi , Nishioka Kusuki , Ozaki Shoichi

    …     Objective: The object of this study is to investigate the visualization capabilities of X-ray refraction contrast imaging with in-line configuration when assessing the early form of osteoarthritis (OA).<br>    Methods: We prepared resected human femoral bone with known OA as well as with OAmodel rat induced by anterior cruciate ligament transaction. …

    Clinical Rheumatology and Related Research 18(1), 72-80, 2006

    J-STAGE  Ichushi Web 

  • Three-Dimensional Atomic Image around Mn Atoms in Diluted Magnetic Semiconductor Zn0.4Mn0.6Te Obtained by X-Ray Fluorescence Holography

    Hosokawa Shinya , Happo Naohisa , Hayashi Koichi , Takahashi Yukio , Ozaki T\\={o}ru , Horii Kenju , Matsubara Eiichiro

    … X-ray fluorescence holography (XFH) was applied at the beamline BL37XU of SPring-8 to visualize the three-dimensional local structure around the Mn atoms in a diluted magnetic semiconductor Zn<SUB>0.4</SUB>Mn<SUB>0.6</SUB>Te. … The sample was irradiated by X-rays of certain energies beyond the Mn K absorption edge in order to obtain the Mn K<SUB>α</SUB> …

    Japanese Journal of Applied Physics 44(2), 1011-1012, 2005

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  • Development of Photoemission Electron Microscope by Imaging Inner Shell Photoelectrons Excited by High Energy Synchrotron Radiation X-rays  [in Japanese]

    YASUFUKU Hideyuki , YOSHIKAWA Hideki , KIMURA Masahiro , FUKUSHIMA Sei

    … We have been developing photoemission electron microscopy (PEEM) using both soft and hard X-rays at SPring-8 beamline BL 15 XU, in order to realize two-dimensional chemical analysis for commercial materials. … In this paper, we present the performance of our XPEEM and a finding of the micro-area X-ray absorption near-edge structure (μ-XANES) of DVD+RW for a practical material. …

    Hyomen Kagaku 26(9), 524-531, 2005

    J-STAGE 

  • Feasibility study for PTV measurement using X-ray holography  [in Japanese]

    Uemura Tomomasa , Yamamoto Yasufumi , Murata Shigeru , Nishio Shigeru , Iguchi Manabu , Uesugi Kentaro

    … Some X-ray imaging techniques are examined for a feasibility study for micro-PIV in this study. … There are three X-ray imaging method, the absorption contrast method, the refraction contrast method, and the phase contrast method. … The characteristics of the method, edge enhancement, can be effective in extracting tracer images. …

    Journal of the Visualization Society of Japan 25(Supplement1), 203-206, 2005

    J-STAGE 

  • Fundamental Technical Concept of Digital Phase Contrast Mammography  [in Japanese]

    HONDA Chika

    … Since 1895 when the x-ray was discovered, x-ray imaging has been performed with absorption contrast. … Somenkov and co-workers have reported that refraction of x-ray improves sharpness of x-ray images by edge effect due to phase contrast. …

    Medical Imaging and Information Sciences 21(3), 230-238, 2004-09-01

    J-STAGE  Ichushi Web  References (28) Cited by (8)

  • 10keV X-Ray Phase-Contrast Microscopy for Observing Transparent Specimens

    KAGOSHIMA Yasushi , IBUKI Takashi , YOKOYAMA Yoshiyuki , TSUSAKA Yoshiyuki , MATSUI Junji , TAKAI Kengo , AINO Masataka

    Japanese Journal of Applied Physics Pt. 2 Letters 40(11), L1190-L1192, 2001-11-01

    References (16) Cited by (1)

  • 10keV X-Ray Phase-Contrast Microscopy for Observing Transparent Specimens.

    Kagoshima Yasushi , Ibuki Takashi , Yokoyama Yoshiyuki , Tsusaka Yoshiyuki , Matsui Junji , Takai Kengo , Aino Masataka

    … Hard X-ray phase-contrast microscopy has been performed with phase plates of tantalum using an X-ray beam from an undulator in SPring-8. … absorption edge of tantalum (9.9 keV) in order to increase the phase contrast. …

    Japanese Journal of Applied Physics 40(11A), L1190-L1192, 2001

    J-STAGE 

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