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Improvements of multilayer neutron interferometer and it's applications to quantum mechanical measurement problems.

Research Project

Project/Area Number 03640349
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 物理学一般
Research InstitutionKYOTO UNIVERSITY

Principal Investigator

EBISAWA Toru  Kyoto Univ. KUR Researcher, 原子炉実験所, 助手 (30027453)

Co-Investigator(Kenkyū-buntansha) TAKAHARA Yosie  Ibaraki N.C.T. Assistant Prof., 講師 (50216777)
AKIYOSI Tunekazu  Kyoto Univ. KUR Assistant Prof., 原子炉実験所, 講師 (40027420)
TASAKI Seiji  Kyoto Univ. KUR Researcher, 原子炉実験所, 助手 (40197348)
KAWAI Takesi  Kyoto Univ. KUR Researcher, 原子炉実験所, 助手 (20027436)
Project Period (FY) 1991 – 1992
Project Status Completed (Fiscal Year 1992)
Budget Amount *help
¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 1992: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1991: ¥1,100,000 (Direct Cost: ¥1,100,000)
KeywordsInterferometer / Multilayer mirror / Neutron mirror / Cold neutron / Magnetic mirror / Quantum measurement problem / 中性子干渉計 / 多層膜中性子鏡 / 中性子磁気ミラー / 量子力学的観測問題 / 冷中性子 / 多層中性子ミラ- / 磁気多層中性子ミラ- / 偏柮中性子
Research Abstract

1. The goal of the research project has been the improvements of the multilayer neutron interferometer and it's applications to physics. Concludingly, the goal will be attained with about one year delay due to taking long time to improve the interferometer.
2. In order to improve the interferometer, it is considerably important to realize the position control of the interferometer mirrors with high precision and the high perfectness of multilayer mirror as one dimensional lattice crystal.
3. The position control of the former has been attained with a very high precision of about 10 A by combining piezo actuators with flat base plate, laser interferometer and high precision linear scale.
4. In the case of the latter the improvement of the flatness of the mirror substrate has been attained beyond the limit of the conventional polishing technique. The perfectness of the multilayer mirror as one dimensional lattice has been checked with a high angle precision by the double diffraction method using two silicon perfect crystals.
5. Performance tests of the improved interferometer will be made the beginning of the next year. Fabrication of magnetic mirror for the interferometer and it's application to quantum mechanical measurement theory will be made the end of the next year.

Report

(3 results)
  • 1992 Annual Research Report   Final Research Report Summary
  • 1991 Annual Research Report
  • Research Products

    (9 results)

All Other

All Publications (9 results)

  • [Publications] 海老澤 徹: "多層膜中性子干渉計の開発" 京都大学原子炉研究所第27回学術講演会報文集. 27. 101-120 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] T.EBISAWA: "Multilayer mirror Interferometer for Very Cold Neutrons" Proceesings of the 4th ISQM-SAT,Tokyo'92. (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] S.TASAKI: "Effect of interface roughness in a multilayer system on Neutron reflectivity" J.Appl.Phys.71. 2375-2379 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] T. Ebisawa: "Development of multilayer neutron interferometer. (in Japanese)." Proceedings of the annual meeting, KUR,. 27. 101-120 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] T. Ebisawa: "Multilayer mirror interferometer for very cold neutrons." Proceedings of the 4 th ISQM-SAT Tokyo 1992, 4. (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] S. Tasaki: "Effect of interface roughness in a multilayer system on neutron reflectivity." J. Appl. Phys.71. 2375-2379 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] 海老沢 徹: "多層膜中性子干渉計の開発" 京都大学原子炉実験所第27回学術講演会報文集. 27. 101-120 (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] T.Ebisawa: "Maltilayir mirror interferameter for very cold neutrons" Pro ceedings of the 4th IsQM-SAT.Tokyo´92. (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] S.Tasaki: "Effect of interface roughness in a multilayer system on new tron reflectivity" J.Appl.Pirys.71. 2375-2379 (1992)

    • Related Report
      1992 Annual Research Report

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Published: 1991-04-01   Modified: 2016-04-21  

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