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Time Resolved Electron Energy Loss Spectrometer

Research Project

Project/Area Number 07555009
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section試験
Research Field 表面界面物性
Research InstitutionKYOTO UNIVERSITY

Principal Investigator

NISHIJIMA Mitsuaki  Kyoto University, Dept.of Chemistry, Graduate School of Science, Prof., 大学院・理学研究科, 教授 (90108978)

Co-Investigator(Kenkyū-buntansha) TAKAGI Noriaki  Kyoto University, Dept.of Chemistry, Graduate School of Science, Research Associ, 大学院・理学研究科, 助手 (50252416)
Project Period (FY) 1995 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥8,700,000 (Direct Cost: ¥8,700,000)
Fiscal Year 1996: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1995: ¥7,200,000 (Direct Cost: ¥7,200,000)
KeywordsEELS / Surfece / time-resolved / electron spectroscopy / vacuum / 電子エネルギー損失分光 / 分散補償の原理
Research Abstract

An EELS spectrometer was designed by reffering to the dispersion compensation principle used by Siegbahn for X ray photoelectron spectroscopy. In this case, (1) in principle, all currents which enter the monochromater can be used for EELS measurements, and (2) pass energy is high, and thus, the sample current is high. Troubles are aberration and space charges. In the case of 180゚ semispherical spectrometer, the focus is at the egde of the 180゚ sphere and for the sample to be positioned, lenses which do not lose information on positions are needed between the output of the monochrometer and the sample and between the sample and the input of the analyzer. In this study, the 90゚ sector was used for the spectrometer. The optimization of the energy resolution and transmission was performed by the design of several electron guns. The obtained energy resolution was 20 meV,and the corresponding detector current was 200pA.These results are expected to give important informations on the future design of a time-resolved spectrometer by the use of 180゚ sphere.

Report

(3 results)
  • 1996 Annual Research Report   Final Research Report Summary
  • 1995 Annual Research Report
  • Research Products

    (18 results)

All Other

All Publications (18 results)

  • [Publications] N. Takagi: "Location of an O Atom in Pd (110) c (2X4)-O" Chem. Phys. Lett.232. 531-536 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] N. Minami: "Hydrogen Desorption from Si (100) (2X1)-H by K" Swf. Sci.325. 11-20 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] N. Minami: "Atomic-Hydrogen-Induced Restructuring of Si (100) (2X)-K" Swf. Sci.337. L783-L788 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] M. Date: "Interaction of NO with CO on Pd (100)" Swf. Sci.350. 75-90 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] N. Takagi: "Quantum Delocalization of H on Pd (110)" Phys. Reu. B. 53. 13767-13771 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Y. Yasui: "CO Adsorption on the Pd (110) c (2X4)-O Surface" Swf Sci.365. 422-428 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] N.Takagi: "Location of an O atom in Pd (110) c (2x4)-O" Chem.Phys.Lett.232. 531-536 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] N.Minami: "Hydrogen Desorption from Si (100) (2x1)-H by K" Surf.Sci.325. 11-20 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] N.Minami: "Atomic-Hydrogen-Induced Restructuring of Si (100) (2x1)-K" Surf.Sci.337. L783-L788 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] M.Date: "Interaction of NO with CO on Pd (100)" Surf.Sci.350. 75-90 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] N.Takagi: "Quantum Delocalization of H on Pd (110)" Phys.Rev.B53. 13767-13771 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Y.Yasui: "CO Adsorption on the Pd (110) c (2x4)-O Suriace" Surf.Sci.365. 422-428 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] M.Date: "Interaction of NO with CO on Pd (100)" Surf.Sci.350. 79-90 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] N.Takagi: "Quantum Delocalization of H on Pd (110)" Phys.Rev.B. 53. 13767-13771 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Y.Yasui: "CO Adsorption on the Pd (110) c (2×4) -O Surface" Surf.Sci.365. 422-428 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] M. Date: "Explosive production of CO_2 from (NO+CO)/Pd(100)" Surf. Sci.341. L1096-L1100 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] M. Date: "Interaction of NO with CO on Pd(100): Ordered coodforption, structuros and explosive reaction" Surf. Sci.(in press).

    • Related Report
      1995 Annual Research Report
  • [Publications] N. Takagi: "Quantum delocalization of H on Pd(100)-a vibrational study" Php. Rev. B. (in press).

    • Related Report
      1995 Annual Research Report

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Published: 1995-04-01   Modified: 2016-04-21  

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