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Research of High Quality Electron Beam and THz-FEL Based on Numerical Simulation for Electromagnetic Fields Employing a 3-D FDTD Method

Research Project

Project/Area Number 17360035
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Applied physics, general
Research InstitutionTohoku University

Principal Investigator

HAMA Hiroyuki  Tohoku University, Graduate School of Science, Professor (70198795)

Co-Investigator(Kenkyū-buntansha) KAWAI Masayuki  Tohoku University, Graduate School of Science, Associate Professor (60374899)
HINODE Fujio  Tohoku University, Graduate School of Science, Research Associate (60292207)
MUTO Toshiya  Tohoku University, Graduate School of Science, Researcher (10431496)
宮本 篤  広島大学, 放射光科学研究センター, 助手 (90403617)
Project Period (FY) 2005 – 2007
Project Status Completed (Fiscal Year 2007)
Budget Amount *help
¥15,030,000 (Direct Cost: ¥14,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2007: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2006: ¥6,200,000 (Direct Cost: ¥6,200,000)
Fiscal Year 2005: ¥4,800,000 (Direct Cost: ¥4,800,000)
KeywordsFDTD method / high-brilliant electron beam / free electron laser / numerical simulation / RF gun / Terahertz radiation / Smith-Purcell radiation / femto-second electron beam / 時間領域差分(FDTD)法 / コヒーレント放射 / 空間電荷効果 / バンチ圧縮 / 熱陰極 / 速度集群効果
Research Abstract

In this research work, we have investigated concerning high-brilliant electron beam and free electron laser (FEL) oscillation by means of numerical simulation employing Finite Difference Time Domain (FDTD) method as a Maxwell's equations solver. As a first step, beam characteristics produced by a thernionic RF gun was studied by the FDTD simulation. Results of the work have improved design work of the actual RF gun. In the 2nd year, the beam optics for the bunch compression has been optimized by using results of the FDTD simulation, then it was found that there would be a possibility of producing very short electron bunch length around 70 femto-second. In addition, properties of coherent synchrotron radiation in Terahertz region were studied theoretically and a basic layout of light source accelerator has been designed. As the simulation code has been progressed, the beam dynamics in a bunch compressor was precisely evaluated by taking the effect of space charge into account. As the result the possibility of producing 100 femto-second beam bunch and its application for a new accelerator based coherent light source were pointed out.
Meanwhile lasing of Smith-Purcell backward wave oscillator (BWO) FEL using a low energy DC beam was successfully simulated by using the FDTD code. It was found that the dc beam having the normalized emittance less than 1 mm mrad and the kinetic energy of less than 50 keV is required for Smith-Purcell BWO FEL. This source is concluded to be very promising and unique for future narrowband intense sub-Terahertz radiation.

Report

(4 results)
  • 2007 Annual Research Report   Final Research Report Summary
  • 2006 Annual Research Report
  • 2005 Annual Research Report
  • Research Products

    (37 results)

All 2007 2006 2005 Other

All Journal Article (26 results) (of which Peer Reviewed: 1 results) Presentation (10 results) Remarks (1 results)

  • [Journal Article] Development of an injector to generate a very short bunch for a super coherent terahertz light source project2007

    • Author(s)
      T. Tanaka, T. Muto, F. Hinode, M. Kawai . K. Nanbu, K. Kasamsook, K. Akiyama. M. Yasuda, H. Hama. H. Tanaka, N. Kumagai
    • Journal Title

      Proc. 4th Asian Particle Accelerator Conference 1

      Pages: 178-180

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Study on compact dc electron gun using single crystal cathode of LaB_62007

    • Author(s)
      K. Kasamsook. K. Nanbu, M. Kawai, K. Akiyama, F. Hinode, T. Muto, T. Tanaka, M. Yasuda, H. Hama
    • Journal Title

      Proc. 4th Asian Particle Accelerator Conference 1

      Pages: 181-183

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Development of a low emittance dc gun for Smith-Purcell BWO FEL2007

    • Author(s)
      K. Kasamsook, K. Akiyama, K. Nanbu, M. Kawai, F. Hinode, T. Muto, T. Tanaka, M. Yasuda, Y. Mori, H. Hama
    • Journal Title

      Proc. 29th International Free Electron Laser Conference 1

      Pages: 417-419

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Coherent THz light source using very short electron bunches from a thermionic rf gun2007

    • Author(s)
      T. Muto, T. Tanaka, F. Hinode, M. Kawai, K. Nanbu, K. Kasamsook, K. Akiyama, M. Yasuda, Y. Mori, H. Hama
    • Journal Title

      Proc. 29th International Free Electr on Laser Conference 1

      Pages: 476-478

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Development of an injector to generate a very short bunch for a super coherent terahertz light source project2007

    • Author(s)
      T. Tanaka, T. Muto, F. Hinode, M. Kawai, K. Nanbu, K. Kasamsook, K. Akiyama, M. Yasuda, H. Hama, H. Tanaka, N. Kumagai
    • Journal Title

      Proc. 4th Asian Particle Accelerator Conference, Indore

      Pages: 178-180

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Study on compact dc electron gun using single crystal cathode of LaB6_62007

    • Author(s)
      K. Kasamsook, K. Nanbu, M. Kawai, K. Akiyama, F. Hinode, T. Muto, T. Tanaka, M. Yasuda, H. Hama
    • Journal Title

      Proc. 4th Asian Particle Accelerator Conference, Indore

      Pages: 181-183

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Development of a low emittance dc gun for Smith-Purcell BWO FEL2007

    • Author(s)
      K. Kasamsook, K. Akiyama, K. Nanbu, M. Kawai, F. Hinode, T. Muto, T. Tanaka, M. Yasuda, Y. Mori, H. Hama
    • Journal Title

      Proc. 29th International Free Electron Laser Conference, Novosibirsk

      Pages: 417-419

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Coherent THz light source using very short electron bunches from a thermionic rf gun2007

    • Author(s)
      T. Muto, T. Tanaka, F. Hinode, M. Kawai, K. Nanbu, K. Kasamsook, K. Akiyama, M. Yasuda, Y. Mori, H. Hama
    • Journal Title

      Proc. 29th International Free Electron Laser Conference, Novosibirsk

      Pages: 476-478

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] COHERENT THZ LIGHT SOURCE USING VERY SHORT ELECTRON BUNCHES FROM A THERMIONIC RF GUN2007

    • Author(s)
      T. Muto, T. Tanaka, F. Hinode, M. Kawai, K. Nanbu, K. Kasamsook, K. Akiyama. M. Yasuda, Y. Mori, H. Hama
    • Journal Title

      Proc. 29th International Free Electron Laser Conference, Novosibirsk, Russia 1

      Pages: 476-479

    • Related Report
      2007 Annual Research Report
  • [Journal Article] DEVLOPMENT OF A LOW EMITTANCE DC GUN FOR SMITH-PURCELL BWO FEL2007

    • Author(s)
      K. Kasamsook, K. Akiyama, K. Nanbu, M. Kawai, F. Hinode, T. Muto, T. Tanaka, M. Yasuda. Y. Mori, H. Hama
    • Journal Title

      Proc. 29th International Free Electron Laser Conference, Novosibirsk, Russia 1

      Pages: 417-420

    • Related Report
      2007 Annual Research Report
  • [Journal Article] Super coherent THz light source based on an isochron ous ring with very short electron bunches2006

    • Author(s)
      T. Tanaka, T. Muto, F. Hinode, M. Kawai, K. Nanbu, K. Kasamsook, K. Akiyama, M. Yasuda, H. Hama, H. Tanaka
    • Journal Title

      Proc. 28th International Free Electron Laser Conference 1

      Pages: 371-373

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] A compact low emittance dc gun employing single crystal cathode of LaB_62006

    • Author(s)
      K. Kasamsook, K. Nanbu, M. Kawai, K. Akiyama, F. Hinode, T. Muto, T. Tanaka, M. Yasuda, H. Hama
    • Journal Title

      Proc. 28th International Free Electron Laser Conference 1

      Pages: 680-682

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Conceptual design of an isochronous ring to generate coherent terahertz synchrotron radiation2006

    • Author(s)
      H. Hama, H. Tanaka, N. Kumagai, M. Kawai, F. Hinode, T. Muto, K. Nanbu, T. Tanaka, K. Kasamsook, K. Akiyama, M. Yasuda
    • Journal Title

      New Journal of Physics 8

      Pages: 292-304

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Super coherent THz light source based on an isochronous ring with very short electron bunches2006

    • Author(s)
      T. Tanaka, T. Muto, F. Hinode, M. Kawai, K. Nanbu, K. Kasamsook, K. Akiyama, M. Yasuda, H. Hama, H. Tanaka
    • Journal Title

      Proc. 28th International Free Electron Laser Conference, Berlin

      Pages: 371-373

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] A compact low emittance dc gun employing single crystal cathode of LaB_62006

    • Author(s)
      K. Kasamsook, K. Nanbu, M. Kawai, K. Akiyama, F. Hinode, T. Muto, T. Tanaka, M. Yasuda, H. Hama
    • Journal Title

      Proc. 28th International Free Electron Laser Conference, Berlin

      Pages: 680-682

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Conceptual design of an isochronous ring to generate coherent teraherz synchrotron radiation2006

    • Author(s)
      H.Hama, H.Tanaka, N.Kumagai, M.Kawai, F.Hinode, T.Muto, K.Nanbu, T.Tanaka, K.Kasamsook, K.Akiyama, M.Yasuda
    • Journal Title

      New Journal of Physics 8

      Pages: 292-307

    • Related Report
      2006 Annual Research Report
  • [Journal Article] A compact low emittance DC gun employing single crystal of LaB62006

    • Author(s)
      K.Kasamsook, K.Nanbu, M.Kawai, K.Akiyama, F.Hinode, T.Tanaka, M.Yasuda, H.Hama
    • Journal Title

      Proc. 28^<th> International Free electron Laser Conference, Berlin, Germany 1

      Pages: 680-683

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Super Coherent THz Light Source Based on an Isochronous Ring with Very Short Electron Bunches2006

    • Author(s)
      H.Hama, K.Akiyama, F.Hinode, K.Kasamsook, M.Kawai, T.Muto, K.Nanbu, T.Tanaka, M.Yasuda, H.Tanaka
    • Journal Title

      Proc. 28^<th> International Free electron Laser Conference, Berlin, Germany 1

      Pages: 371-374

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Simulation study of a thermionic rf gun for high brightness and short pulse beam2005

    • Author(s)
      T. Tanaka, F. Hinode, M. Kawai, A. Miyamoto, K. Shinto, H. Hama
    • Journal Title

      Proc. 21st Particle Accelerator Conference 1

      Pages: 3499-3501

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Dream of isochronous ring, again2005

    • Author(s)
      H. Hama
    • Journal Title

      Proc. 27th International Free Electron Laser Conference 1

      Pages: 1-7

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] An independently tunable cells thermionic rf gun (ITC-RF Gun) for sub-picosecond short pulse2005

    • Author(s)
      T. Tanaka, F. Hinode, M. Kawai, H. Hama
    • Journal Title

      Proc. 27th International Free Electron Laser Conference 1

      Pages: 142-144

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Simulation study of a thermionic rf gun for high brightness and short pulse beam2005

    • Author(s)
      T. Tanaka, F. Hinode, M. Kawai, A. Miyamoto, K. Shinto, H. Hama
    • Journal Title

      Proc. 21st Particle Accelerator Conference, Knoxville

      Pages: 3499-3501

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Dream of isochronous ring, again2005

    • Author(s)
      H. Hama
    • Journal Title

      Proc. 27th International Free Electron Laser Conference, Stanford

      Pages: 1-7

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] An independently tunable cells thermionic rf gun (ITC-RF Gun) for sub-picosecond short pulse2005

    • Author(s)
      T. Tanaka, F. Hinode, M. Kawai, H. Hama
    • Journal Title

      Proc. 27th International Free Electron Laser Conference, Stanford

      Pages: 142-144

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] SIMULATION STUDY OF A THERMIONIC RF GUN FOR HIGH BRIGHTNESS AND SHORT PULSE BEAM2005

    • Author(s)
      T.Tanaka, F.Hinode, M.Kawai, A.Miyamoto, K.Shinto, H.Hama
    • Journal Title

      Proceedings of 2005 Particle Accelerator Conference, Knoxville, TN, USA

      Pages: 3499-3451

    • Related Report
      2005 Annual Research Report
  • [Journal Article] AN INDEPENDENTLY TUNABLE CELLS THERMIONIC RF GUN (ITC-RF GUN) FOR SUB-PICOSECOND SHORT PULSE2005

    • Author(s)
      T.Tanaka, F.Hinode, M.Kawai, H.Hama
    • Journal Title

      Proceedings of the 27th International Free Electron Laser Conference, Stanford, CA, USA

      Pages: 142-145

    • Related Report
      2005 Annual Research Report
  • [Presentation] コヒーレントテラヘルツ光源のための超短パンチ生成用入射器の開発研究2007

    • Author(s)
      田中拓海, 武藤俊哉, 日出富士雄, 河合正之, 南部健一, Kittipong Kasamsook, 秋山和士, 安田真冬, 森吉之介, 濱広幸
    • Organizer
      第4回加速器学会年会
    • Place of Presentation
      埼玉県和光市
    • Year and Date
      2007-08-03
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Beam quality measurements of a low emittance dc gun employing single crystal of LaB_<66> cathode2007

    • Author(s)
      K. Kasamsook, K. Akiyama, K. Nanbu, M. Kawai, F. Hinode, T. Muto, T. Tanaka, M. Yasuda, Y. Mori, H. Hama
    • Organizer
      第4回加速器学会年会
    • Place of Presentation
      埼玉県和光市
    • Year and Date
      2007-08-03
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Development of an injector to generate ultra-short bunches fro coherent terahertz light source2007

    • Author(s)
      T. Tanaka, T. Muto, F. Hinode, M. Kawai, K. Nanbu, K. Kasamsook, K. Akiyama, M. Yasuda, Y. Mori, H. Hama
    • Organizer
      4th Annual Meeting of Particle Accelerator Society of Japan
    • Place of Presentation
      Wako
    • Year and Date
      2007-08-03
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Beam quality measurements of a low emittance dc gun employing single crystal of LaB6 cathode2007

    • Author(s)
      K. Kasamsook, K. Akiyama, K. Nanbu, M. Kawai, F. Hinode, T. Muto, T. Tanaka, M. Yasuda, Y. Mori, H. Hama
    • Organizer
      4th Annual Meeting of Particle Accelerator Society of Japan
    • Place of Presentation
      Wako
    • Year and Date
      2007-08-03
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] 超短パンチ生成用独立2セル構造の熱陰極RF電子銃の開発研究2006

    • Author(s)
      田中拓海, 河合正之, 日出富士雄, 武藤俊哉, 南部健一, K. Kasamsook, 秋山和士, 安田真冬, 濱広幸
    • Organizer
      第3回加速器学会年会
    • Place of Presentation
      宮城県仙台市
    • Year and Date
      2006-08-03
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Study and development of a thermionic ITCRF gun for production of ultra-short electron bunches2006

    • Author(s)
      T. Tanaka, M. Kawai, F. Hinode, T. Muto, K. Nanbu, K. Kasamsook, K. Akiyama, M. Yasuda, H. Hama
    • Organizer
      3rd Annual Meeting of Particle Accelerator Society of Japan
    • Place of Presentation
      Sendai
    • Year and Date
      2006-08-03
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] A low emittance dc electron gun using single crystal cathode LaB_62006

    • Author(s)
      K. Kasamsook, M. Kawai, K. Akiyama, F. Hinode, T. Muto, K. Nanbu, T. Tanaka, M. Yasuda, H. Hama
    • Organizer
      第3回加速器学会年会
    • Place of Presentation
      宮城県仙台市
    • Year and Date
      2006-08-02
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] A low emittance dc electron gun using single crystal cathode LaB62006

    • Author(s)
      K. Kasamsook, M. Kawai, K. Akiyama, F. Hinode, T. Muto, K. Nanbu, T. Tanaka, M. Yasuda, H. Hama
    • Organizer
      3rd Annual Meeting of Particle Accelerator Society of Japan
    • Place of Presentation
      Sendai
    • Year and Date
      2006-08-02
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] 独立したセルからなる熱陰極RF電子銃のFDTDシミュレーションによる最適化設計2005

    • Author(s)
      濱広幸, 河合正之, 日出富士雄, 田中拓海, 栗原亮, 高橋重伸, 柴崎義信
    • Organizer
      第2回加速器学会年会
    • Place of Presentation
      佐賀県鳥栖市
    • Year and Date
      2005-07-22
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Design study of an independently-tunable-cells thermionic rf gun by means of an FDTD simulation2005

    • Author(s)
      T. Tanaka, M. Kawai, F. Hinode, A. Kurihara, S. Takahashi, Y. Shibasaki, H. Hama
    • Organizer
      2nd Annual Meeting of Particle Accelerator Society of Japan
    • Place of Presentation
      Tosu
    • Year and Date
      2005-07-22
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Remarks] 「研究成果報告書概要(和文)」より

    • URL

      http://www.lns.tohoku.ac.jp/~acc/SCTRproj.pdf

    • Related Report
      2007 Final Research Report Summary

URL: 

Published: 2005-04-01   Modified: 2016-04-21  

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