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Experimental study of high-T_c bulk superconductor wigglers for free-electron lasers.

Research Project

Project/Area Number 03452282
Research Category

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

Allocation TypeSingle-year Grants
Research Field プラズマ理工学
Research InstitutionYamanashi University

Principal Investigator

MATSUZAWA Hidenori  Yamanashi University, Faculty of Engineering, Professor., 工学部, 教授 (40006234)

Co-Investigator(Kenkyū-buntansha) TOYODA Koichi  The Institute of Physical and Chemical Research, Chief Researcher., レーザー科学研究グループ, 主任研究員 (20087472)
AKITSU Tetsuya  Yamanashi University, Faculty of Engineering, Instructor., 工学部, 講師 (70159333)
Project Period (FY) 1991 – 1992
Project Status Completed (Fiscal Year 1992)
Budget Amount *help
¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 1992: ¥1,700,000 (Direct Cost: ¥1,700,000)
KeywordsHigh-T_c bulk superconductors / Wigglers / Free-electron lasers / Lenses for electron beams / Supertrons / Disktron. / 臨界温度 / 空間電荷 / 高温超伝導体ウィグラー / 自由電子レ-ザ用ウィグラ- / ス-パ-トロン / 相対論的電子ビ-ム
Research Abstract

High T_c bulk superconductors were applied to wigglers for free-electron lasers. When field-emitted electron beams (-340 keV, -10 ns, -1 kA) were injected into the wiggler (wavelenght 35 mm, amplitude 2 mm, total length 50 mm), the beams followed the sinusoidal surfaces of the wigglers successfully. Neon gases of 0.1-Torr order were introduced into the duct of the wiggler to neutralize space charges of the beams. When electron beams (Disktron, 700 keV, -1 A, -10 ns, 1 pps) were passed in front of the Bi-based powder-pressed and Y-based melt-processed bulk disks, no deflection was observed. When the beams were injected into Supertrons made from those bulks, the beams were a little reacted with the melt-processed lens when the lens was cooled while the beams were injected (Field cooling). In other cases no reaction was observed. To achieve focusing and deflection of the beams, introduction of gases of low pressure will be necessary. Reduction in diameter of the lenses will also be required.

Report

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

    (20 results)

All Other

All Publications (20 results)

  • [Publications] H.Matsuzawa et al.: "High T_C bulk superconductor lenses for electrom beams:Supertrons." Applied Physics Reviews in J.Appl.Phys.68. (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] H.Matsuzawa et al.: "Upper limits of electron beam currents focusable with high-T_C superconductor lenses (supertrons)." Japanese Journal of Applied Physics. 31. L550-L552 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] H.Matsuzawa et al.: "Induction linear accelerators with high-T_C bulk superconductor lenses." Japanese Journal of Applied Physics. 30. 2972-2973 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] H.Matsuzawa ed al.: "Comparison between powder-pressed and nelt-processed bulk superconductor lenses (Supertrons) for electron beams." Japanese Journal of Applied Physics. 30. L1390-L1392 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] H.Matsuzawa et al.: "High T_C bulk superconductor wigglers" Applied Physics Letters. 59. 141-142 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] H.Matsuzawa et al.: "Observation of focused electron beams inside a high-T_C bulk superconductor lens (Supertrons)." Japanese Journal of Applied Physics. 30. L841-L843 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] H.Matsuzawa: "High T_c bulk superconductor lenses for electron beams: Supertrons." Appl. Phys. Rev. in J. Appl. Phys.68.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] H.Matsuzawa, H.Kobayashi, et al.: "Upper limits of electron beam currents focusable with high T_c superconductor lenses (Supertrons)." Jpn. J. Appl. Phys.31. L550 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] H.Matsuzawa, H.Wada, et al.: "Induction linear accelerators with high-T_c bulk superconductor lenses." Jpn. J. Appl. Phys.30. 2972 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] H.Matsuzawa, T.Miyamoto, et al.: "Comparison between powder-pressed and melt-processed bulk superconductor lenses (Supertrons) for electron beams." Jpn. J. Appl. Phys.30. L1390 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] H.Matsuzawa, Y.Ishibashi, et al.: "High T_c bulk superconductor wigglers" Appl. Phys. Lett.59. 141 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Y.Ishibashi, M.Ariizumi, et al.: "Jig for high-T_c bulk superconductor wigglers." Rev. Sci. Instrum.62. 1374 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] H.Matsuzawa, T.Osada, et al.: "Observation of focused electron beams inside a high-T_c bulk superconductor lens (Supertrons)." Jpn. J. Appl. Phys.30. L841 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] H.Matsuzawa,H.Kobaysahi,K.Ohno,et al.: "“Upper limits of electron beam currents focusable with high-Tc bulk superconductor lenses(Supertrons)"" Jpn.J.Appl.Phys.31. L550-L552 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] H.Matsuzawa,et al.: "Upper Limits to Electron Beam Currents Focusable with HighーT_c Bulk Superconductor Lenses(Supertrons)." Jpn.J.Appl.Phys.31. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] H.Matsuzawa,et al.: "Induction Linear Accelerators with HighーT_c Bulk Superconductor Lenses." Jpn.J.Appl.Phys.30. 2972-2973 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] H.Matsuzawa,et al.: "Comparison between PowderーPressed and MeltーProcessed Bulk Superconductor Lenses(Supertrons)for Electron Beams." Jpn.J.Appl.Phys.30. L1390-L1391 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] H.Matsuzawa,et al.: "HighーT_c Bulk Superconductor Wigglers." Appl.Phys.Lett.59. 141-142 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] Y.Ishibashi,et al.: "Jig for HighーT_c Superconductor Bulk Wigglers." Rev.Sci.Instrum.62. 1374-1375 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] H.Matsuzawa,et al.: "Observation of Focused Electron Beams inside a HighーT_c Bulk Superconductor Lens(Supertrons)." Jpn.J.Appl.Phys.30. L841-L843 (1991)

    • Related Report
      1991 Annual Research Report

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Published: 1992-04-01   Modified: 2016-04-21  

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