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Experimental Study on the Fast Ion-Beam Instabilities in a Linear Collider

Research Project

Project/Area Number 11695034
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 素粒子・核・宇宙線
Research InstitutionHigh Energy Accelerator Research Organization

Principal Investigator

TAKATA Koji  KEK, High-Energy Accelerator Research Organization, Professor, 加速器研究施設, 教授 (10044760)

Co-Investigator(Kenkyū-buntansha) TOGE Nobukazu  KEK, High-Energy Accelerator Research Organization, Associate Professor, 加速器研究施設, 助教授 (90249897)
CHIN yong ho  KEK, High-Energy Accelerator Research Organization, Associate Professor, 加速器研究施設, 助教授 (60270394)
YAMASAKI Yoshishige  JAERI, (Takai), Senior Researcher, 東海研究所, 主任研究員 (90011759)
HAYANO Hitoshi  KEK, High-Energy Accelerator Research Organization, Associate Professor, 加速器研究施設, 助教授 (00173055)
URAKAWA Junji  KEK, High-Energy Accelerator Research Organization, Associate Professor, 加速器研究施設, 助教授 (00160333)
松本 浩  高エネルギー加速器研究機構, 加速器研究施設, 助教授 (90132688)
伴 秀一  高エネルギー加速器研究機構, 放射科学センター, 助教授 (70141976)
Project Period (FY) 1999 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥4,900,000 (Direct Cost: ¥4,900,000)
Fiscal Year 2001: ¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 2000: ¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 1999: ¥1,700,000 (Direct Cost: ¥1,700,000)
Keywordslinear collider / Ion / Beam Instability / X-Band / Klystron / Modulator / BPM / Feedback / 実験的研究 / ビームフィードバック / 加速管 / パルストランスフォーマー / 光中性子 / 大電流
Research Abstract

There are mainly four topics in the joint research with the Pohang Accelerator Laboratory. The first topic is the experimental investigation of the so-called fast ion-beam instability using the linac of the PLS synchrotron radiation facility. The second topic is the joint development of the X-band high-power klystrons for linear collider projects and their high power testing at KEK. The third topic is the study of the high-frequency breakdown of the RF accelerating structures for linear colliders. The new simulation code was developed and the analysis shows that it is possible to make a model, which can explain the experimental observations. From these results, we can now foresee what kinds of RF structures are more robust to the high-frequency breakdown. The last topic is the joint study of linac as the pre-accelerator of the linear colliders using ATF facility of KEK. For the first topic, we have developed and fabricated a fast multi-bunch beam position monitor (BPM) jointly with Pohang Accelerator Laboratory and also developed a beam feed-back system to stabilize the beam motion based on the results of BPM study. These devices were installed at the KEK ATF facility and the testing of their performance showed good results. These results were summarized as a Ph. D. thesis of Vladimir Foguel and he recieved a Ph.D. from this study. Good results have been obtained form the high power testing of the X-band Klystrons for linear colliders and we have succeeded in development of the klsytrons using permanent magnets for the beam-focusing system, first in the world. These good results have been reported as invited talks in several international conferences.

Report

(4 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • Research Products

    (18 results)

All Other

All Publications (18 results)

  • [Publications] Yong Ho Chin: "Development of the X-Band RF Power Source for JLC"Proceedings of PAC1999. 3414-3416 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yong Ho Chin: "Status of the X-Band RF Power Source Development for JLC"Proceedings of EPAC 2000. 456-458 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] J.S.Oh: "Development of a Smart Modulator and Efficiency Evaluation of 500 Gev e^+e^-c-Band Linear Collider"Proceedings of LINAC 2001. (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yong Ho Chin: "JLC Status"Proceedings of PAC 2001. 415-417 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yong Ho Chin: "Status of the JLC X-Band Main Linac R&D"Proceedings of APAC 2001. 198-200 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] M.Akemoto: "High-Power Klystron Modulator Using Solid-State IGRT Modules"Proceedings of APAC 2001. 618-620 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Y.H. Chin, et al.: "Development of the X-Band RF Power Source for JLC"Proceedings in Particle Accelerator Conference. PAC1999. 3414

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Young Ho Chin, et al.: "Status of the X-Band RF Power Source Development for JLC"Proceedings of the 2000 European Particle Accelerator Conference (EPAC2000). 456

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] J.S. Oh, J.S. Bak, M.H. Cho, W. Namkung, K.H. Chung, T. Shintake, H. Matsumoto: "Development of A Smart Modulator and Efficiency Evaluation of 500 GeV e+e-C-band Linear Collider"Proceedings in XX International Linac Conference. LINAC2001.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yong Ho Chin: "JLC Status"Proceedings in Particle Accelerator Conference. PAC2001. 415

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] M. Akemoto: "Solid-State Klystron Modulator for JLC"Proceedings in Particle Accelerator Conference. PAC2001. 3732

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Y.H. Chin, et al.: "X-Band PPM Klystron Development for JLC"Proceedings in Particle Accelerator Conference. PAC2001. 3792

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Y.H. Chin, et al.: "Status of the JLC X-Band Mai Linac R&D"Proceedings in Asian Particle Accelerator Conference. APAC2001. 198

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] M. Akemoto, et al.: "High-Power klystron Modulator Using Solid-State IGBT Modules"Proceedings of Asian Particle Accelerator Conference. APAC2001. 618

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] V. Foguel: "Beam Instrumentation in a Linear Collider"Ph.D. Thesis.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] "Executive Summary"JLC Project, Roadmap Report. KEK,2003.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 陳栄浩: "JLC R&D Status"Proceedings of the 2001 Particle Accelerator Conference (PAC2001). 415-417 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 陳栄浩: "Status of the X-Band RF Power Source Development for JLC"Proceedings of the 2000 European Particle Accelerator Conference (EPAC2000). 456-458 (2001)

    • Related Report
      2001 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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