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Non-destructive electron bunch length measurement via the surface plasmon resonance

Research Project

Project/Area Number 15K13415
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Quantum beam science
Research InstitutionJapan Synchrotron Radiation Research Institute

Principal Investigator

Okayasu Yuichi  公益財団法人高輝度光科学研究センター, 加速器部門, 研究員 (90509910)

Project Period (FY) 2015-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords量子ビーム測定手法 / EO サンプリング / 表面プラズモン励起 / SPR / フェムト秒 / 電子加速器 / 有機 EO 結晶 / 電子バンチ / 表面プラズモン / メタマテリアル / 線型加速器
Outline of Final Research Achievements

We developed a non-destructive and real time electron bunch charge distribution measurement system via an organic Pockels Electro-Optic (EO) sampling apart from accelerator vacuum systems. The targeted bunch length is a few tens of femto-seconds (FWHM). Coulomb fields associated with the electron bunch excite surface plasmonic resonance (SPR) through a meta-material deposited prism and the SPR is measured by the EO sampling. Structures of the meta-material layer on the SPR substrate was optimized by a numerical analysis. The substrates were assembled at Kyoto University on 2015 and 2016 and geometrical structures of meta-material layers were measured with a 3D laser microscope.
Feasibility test is demonstrated at an RF fotocathode electron gun test accelerator, however the accelerator and its control system upgrade constructions are still undergoing, thus the feasibility test is scheduled to start from December 2017.

Report

(3 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • Research Products

    (3 results)

All 2016 2015

All Presentation (3 results)

  • [Presentation] 表面プラズモン共鳴を介した電子バンチ長の非破壊計測の検討 (2)2016

    • Author(s)
      岡安雄一
    • Organizer
      第 13 回 日本加速器学会年会
    • Place of Presentation
      幕張メッセ 国際会議場 (千葉県千葉市)
    • Year and Date
      2016-08-08
    • Related Report
      2016 Annual Research Report
  • [Presentation] 表面プラズモン共鳴を介した電子バンチ長の非破壊計測の検討 (2)2016

    • Author(s)
      岡安雄一
    • Organizer
      日本加速器学会
    • Place of Presentation
      千葉県千葉市
    • Year and Date
      2016-08-08
    • Related Report
      2015 Research-status Report
  • [Presentation] 表面プラズモン共鳴を介した電子バンチ長の非破壊計測の検討 (1)2015

    • Author(s)
      岡安雄一
    • Organizer
      日本加速器学会
    • Place of Presentation
      福井県敦賀市
    • Year and Date
      2015-08-05
    • Related Report
      2015 Research-status Report

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Published: 2015-04-16   Modified: 2018-03-22  

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