Search Results 1-20 of 341

  • Structural Properties of (Ti, Zr)(Mn, Cr)<sub>2</sub><i>M</i><sub>0.1</sub> (<i>M</i> = None, Fe, Co, Ni, and Cu) Hydrogen Storage Alloys: Composition Distribution and Occupied Site of Doped Element

    Nakagawa Tessui , Ishida Masayoshi , Heshiki Daichi , Higa Hiroki , Kawakami Junko , Kobayashi Riki , Hanada Nobuko , Ikeda Kazutaka , Otomo Toshiya , Ofuchi Hironori

    … Since our goal is to clarify this mechanism, we determined the elemental analysis using X-ray absorption spectroscopy (XAS), scanning electron microscope (SEM) coupled with energy dispersive X-ray spectroscopy (EDX), powder X-ray diffraction (XRD), and neutron powder diffraction (NPD) with Rietveld refinement in this study. … SEM-EDX showed inhomogeneous composition with vacancy in B site and linear correlation of Ti/Zr and Mn/Cr ratio. …

    MATERIALS TRANSACTIONS, 2021

    J-STAGE 

  • Accuracy Improvement of the XRD-Rietveld Method for the Quantification of Crystalline Phases in Iron Sintered Ores Through the Correction of Micro-absorption Effects  [in Japanese]

    Harano Takayuki , Nemoto Yu , Murao Reiko , Kimura Masao

    … For quantitative analysis, differences in the values of the linear absorption coefficient, <i>μ</i>, among the crystalline phases must be considered when certain X-ray sources are used, because such differences often affect their mass fractions. … of each phase and the average particle diameter of each crystalline phase determined by scanning electron microscopy with energy dispersive spectroscopy. …

    Tetsu-to-Hagane 107(3), 210-218, 2021

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  • 6. Life Science and Medical Science

    … Matsushima et al.(31107) [217]CO6-18 Production of medical radioisotopes using electron linear accelerator /S. …

    KURNS Progress Report (2019), 201-221, 2020-08

    IR 

  • Neutron total cross section measurements of polyethylene using time-of-flight method at KURNS-LINAC

    Lee Jaehong , Nishiyama Jun , Hori Jun-Ichi , Kimura Rei , Sako Takayuki , Yamada Akira , Sano Tadafumi

    … The neutron total cross sections of polyethylene have been measured in the energy region from 0.001 eV to 40 keV by the time-of-flight (TOF) method using the Kyoto University Institute for Integrated Radiation and Nuclear Science – Linear Accelerator (KURNS-LINAC). … A 6Li detector and a gas electron multiplier (GEM) detector have been used as a neutron detector, and the polyethylene plates of 0.31 and 0.20 cm thickness were employed for the neutron transmission measurement. …

    Journal of Nuclear Science and Technology 57(1), 1-8, 2020-01-02

    IR 

  • Accuracy Improvement of the XRD-Rietveld Method for the Quantification of Crystalline Phases in Iron Sintered Ores through the Correction of Micro-absorption Effects

    Harano Takayuki , Nemoto Yu , Murao Reiko , Kimura Masao

    … For quantitative analysis, differences in the values of the linear absorption coefficient, <i>µ</i>, among the crystalline phases must be considered when certain X-ray sources are used, because such differences often affect their mass fractions. … of each crystalline phase determined by scanning electron microscopy with energy dispersive spectroscopy. …

    ISIJ International 60(12), 2851-2858, 2020

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  • 6. Life Science and Medical Science

    … (30041) [211]CO6-12 Production of Medical Radioisotopes Using Electron Linear Accelerator /S. … (30105) [216]CO6-17 Coherent Transition Radiation mm-Wave Light Source with an Electron Linac for Absorption Spectroscopy and Irradiation /S. …

    KURNS Progress Report (2018), 201-217, 2019-08

    IR 

  • Investigation of Estimation Accuracy of Phantom Scatter Factor by Clarkson Method Considering Depth in MLC Irregular Field  [in Japanese]

    Hayakawa Takahide , Yamada Takumi , Sakai Hironori , Sasamoto Ryuta

    … is data of in-air output, and measure with a mini-phantom at constant depth to remove electron contamination. … In addition, a linear accelerator equipped with the tertiary MLC has two field sizes, that are collimator field by upper and lower collimators and MLC field by tertiary MLC below them. …

    Japanese Journal of Radiological Technology 75(12), 1426-1436, 2019

    J-STAGE  Ichushi Web 

  • Features of low-energy positron diffraction (LEPD) and its instrumentation  [in Japanese]

    Wada Ken , Shirasawa Tetsuroh , Mochizuki Izumi , Fujinami Masanori , Maekawa Masaki , Kawasuso Atsuo , Takahashi Toshio , Hyodo Toshio

    <p>低速陽電子回折(LEPD)は低速電子回折(LEED)の陽電子版である。LEPDはLEEDより表面敏感で多重散乱が少ない。原子核から反発されX線のように単純な散乱因子となるのでLEEDでは困難な重元素を含む表面の構造解析も可能と考えられている。ただし,十分な強度と品質の陽電子ビームを得るためには工夫が必要である。加速器ベースの高強度低速陽電子ビームを用いたLEPD装置の開発状況につ …

    Abstract book of Annual Meeting of the Japan Society of Vacuum and Surface Science 2019(0), 2P30, 2019

    J-STAGE 

  • 8.2.1 Generation of Reactive Oxygen Species in Aqueous Phase by Carbon-Ion Beam  [in Japanese]

    Matsumoto Ken-ichiro , Nyui Minako , Ueno Megumi , Ogawa Yukihiro , Nakanishi Ikuo

    <p>炭素線によって水溶液中に生じるヒドロキシルラジカル(·OH),過酸化水素(H<sub>2</sub>O<sub>2</sub>),及び酸化反応の量を,電子常磁性共鳴をベースとする方法により測定し,X線のそれと比較した。·OHの生成は炭素線の軌跡上に局在しているものと思われ,ミリモラーあるいはモラーレベルの異なる生成密度があることが示 …

    RADIOISOTOPES 68(10), 681-691, 2019

    IR  J-STAGE  Ichushi Web 

  • 3.2.7 Spin Trapping of Radicals in Methanol Solution Irradiated by Heavy Ion Beams—Effect of Specific Energy and LET—  [in Japanese]

    Nakagawa Seiko

    <p>イオンビーム(He, C, Ne, Si, Ar, Fe)照射によりメタノール中に生成するラジカルを,PBN(フェニル-<i>t</i>-ブチルニトロン)によりスピントラップしてESR測定した。PBN-OCH<sub>3</sub>, PBN-CH<sub>2</sub>OH, PBN-Hの三種のラジカルが生 …

    RADIOISOTOPES 68(4), 285-291, 2019

    J-STAGE  Ichushi Web 

  • 3.2.2 Investigation of Sucrose and L-alanine Radicals Produced by Heavy-ion Irradiation Using EPR  [in Japanese]

    Nakagawa Kouichi

    <p>電子常磁性共鳴(EPR)法を用いてスクロースの重粒子イオンやX線照射で生成するラジカル収量のLET依存性,線量依存性等の測定から,その線量計としての潜在的な適用性をアラニンと比較し検討した。He, C, Si, Neなどの重粒子イオンをスクロースに照射した場合も,X線照射同様,微細構造を有しほぼ7 mTに広がる安定なフリーラジカルの生成が観測された。単位線量あたりラジカル収量は重 …

    RADIOISOTOPES 68(4), 239-245, 2019

    J-STAGE  Ichushi Web 

  • 6. Life Science and Medical Science

    … (29074) [172]CO6-14 Production of Medical Radioisotopes Using Electron Linear Accelerator /S. … (29125) [175]CO6-17 Preparation of F1Fo-ATP Synthase as a Whole Body Complex from Bovine Heart for Structural Analysis by Cryo-electron Microscopy and X-ray Crystallography /C. …

    KURRI Progress Report 2017(APRIL 2017 - MARCH 2018), 160-176, 2018-08

    IR 

  • General ion recombination effect in a liquid ionization chamber in high-dose-rate pulsed photon and electron beams

    Mori Yutaro , Takei Hideyuki , Kitamura Nozomi , Isobe Tomonori , Tomita Tetsuya , Kobayashi Daisuke , Kamizawa Satoshi , Sato Tomoharu , Sakurai Hideyuki , Sakae Takeji , 森 祐太郎 , 磯辺 智範 , 櫻井 英幸

    … A microLion (PTW, Freiburg, Germany) LIC was exposed to photon and electron beams from a TrueBeam (Varian Medical Systems, Palo Alto, USA) linear accelerator. … Linear correlations were observed between the frequency and the relative collection for all energies of the photon and electron beams. …

    Journal of radiation research 59(3), 282-285, 2018-05

    IR  Ichushi Web 

  • History of Accelerator Driven Neutron Sources  [in Japanese]

    Kiyanagi Yoshiaki

    … <p>The first neutron source for neutron scattering experiments based on an accelerator was built at Laboratory for Nuclear Science (Present name is Research Center for Electron Photon Science) in Tohoku University. … An electron linear accelerator was used for neutron generation. …

    hamon 28(1), 7-10, 2018

    J-STAGE 

  • Observation of Low-Energy Positron Diffraction Patterns with a Linac-Based Slow-Positron Beam

    Wada Ken , Shirasawa Tetsuroh , Mochizuki Izumi , Fujinami Masanori , Maekawa Masaki , Kawasuso Atsuo , Takahashi Toshio , Hyodo Toshio

    … <p>An experimental system has been developed for the study of low-energy positron diffraction (LEPD) with a slow-positron beam generated by a linear-electron-accelerator (linac). …

    e-Journal of Surface Science and Nanotechnology 16(0), 313-319, 2018

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  • On-Site Non-Destructive Inspection of Bridges Using the 950 keV X-Band Electron Linac X-ray Source (Special Issue on Infrastructure Maintenance, Renovation and Management)

    Uesaka Mitsuru , Mitsuya Yuki , Hashimoto Eiko , Dobashi Katsuhiro , Yano Ryota , Takeuchi Hiroaki , Bereder Jean-Michel , Kusano Joichi , Tanabe Eiji , Maruyama Natsuyo , Hattori Yukiya , Tatewaka Masahiro , Ono Hironobu , Murata Kentaro , Koishikawa Atsushi , Kaibuki Futoshi , Sakurai Hideo , Seki Yoshichika , Oshima Yoshinobu , Ishida Masahiro

    Journal of disaster research 12(3), 578-584, 2017-06

  • TA実験301:The measurement of the air fluorescence yield by 14 GeV electron beam at SLAC  [in Japanese]

    Shin B. K. , liu T. C. , Wang S. H. , Hwang J. J. , Field C. , Belov K. , Ogio S. , Tsunesada Y. , Nam J , Fukushima M. , Sokolsky P. , Thomson G. , Mathews J. , Thomas S. , Ivanov D. , Atwood S. , Pott M.

    Meeting Abstracts of the Physical Society of Japan 72.2(0), 330-330, 2017

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  • Coherent Transition Radiation Light Source Using High-Energy Electron Beams and the Evaluation of Its Characteristics  [in Japanese]

    奥田 修一 , 高橋 俊晴

    日本赤外線学会誌 = Journal of the Japan Society of Infrared Science and Technolog 25(2), 49-54, 2016-02

  • Structural Analysis and Evaluation of Bridge using Mobile X-band 950 keV Electron Linear Accelerator X-ray Source  [in Japanese]

    竹内 大智 , 上坂 充 , 田中 泰司 , 三津谷 有貴 , 土橋 克広 , 草野 譲一 , 大島 義信 , 石田 雅博

    In Japan, bridges constructed during the strong economic growth era are facing an aging problem and advanced maintenance methods have become strongly required recently. To meet this demand, we develop …

    Maintenology 16(4), 65-70, 2016

    J-STAGE 

  • The UHECR detectors calibration using Electron Light Source.  [in Japanese]

    Shin B. K. , Ogino S. , Shibata T. , Ikeda D. , Fukushima M. , Thomson Gordon , Ivanov Dmitri , Sagawa H. , Fujii T. , Belz John

    … The Electron Light Source (ELS) is an artificial shower generator using an electron linear accelerator to perform the calibration for energy of ultra high energy cosmic rays (UHECRs) by the fluorescence detector (FD) in Telescope Array(TA) experiment. …

    Meeting Abstracts of the Physical Society of Japan 71.2(0), 322-322, 2016

    J-STAGE 

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