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Development of a detector for a two-dimensional type beam profile monitor with the use of high intensity beams

Research Project

Project/Area Number 18340078
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionHigh Energy Accelerator Research Organization

Principal Investigator

HASHIMOTO Yoshinori  High Energy Accelerator Research Organization, Accelerator Laboratory, Engineer (10391749)

Co-Investigator(Kenkyū-buntansha) MUTO Suguru  High Energy Accelerator Research Organization, Assistant Professor (90249904)
TOYAMA Takeshi  High Energy Accelerator Research Organization, Accelerator Laboratory, Associate Professor (30207641)
Project Period (FY) 2006 – 2007
Project Status Completed (Fiscal Year 2007)
Budget Amount *help
¥12,080,000 (Direct Cost: ¥11,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2007: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2006: ¥10,000,000 (Direct Cost: ¥10,000,000)
Keywordsbeam monitor / beam prifile / high intensity beam / gas jet / nitrogen / high sensitivity camera / 加速器
Research Abstract

A tow-dimensional type beam profile monitor was developed, and beam profiles were successfully measured without destruction to beams. The beam for these tests were used with injection beams for NIRS HIMAC, of which energy of 6MeV/u, pulse duration of five to eight hundreds micro second, and ion species of carbon, oxygen, and neon with fully stripped. The beam intensity was an order of 10 to the eleventh par pulse. The target was a nitrogen gas jet sheet, of which thickness of 2 or 5mm, width of 60mm (flattened), and density of le-3 Pa. The action of collision between beam and nitrogen sheet, visible light emission of which wave length of almost 400nm is occurred, and which is detected by below detector. Above beam conditions was corresponding to one-tenth in the case of the beam action with any high intensity accelerator of GeV class. The detector was employed an image intensifier (II) and high gain video camera consists of pickup tube (HARP). Beam profiles were confirmed measuring with several ten pulses averaging. This results shows that with high intensity beams (design intensity: 4e13 proton par bunch) such as J-PARC MR, within a time of several bunch, beam profile will be able to detect.
In equipment developments, with gamma ray exposure as total dose was 1 to 5MGy, II' s radiation weal points were examined, and the these materials were changed to radiation hardness materials. Avoiding to an emission of light by nitrogen in atmosphere, detection optics with low loss was set in a vacuum chamber. Light transportation from II to HARP camera was done using a radiation hardness type bundled image fibers. And II was operated by remote high voltage transfer.

Report

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

    (3 results)

All 2009

All Presentation (3 results)

  • [Presentation] 大強度陽子ビームのためのビームプロファイルモニターの開発2009

    • Author(s)
      橋本義徳
    • Organizer
      平成20年度 HIMAC共同利用報告会
    • Place of Presentation
      千葉市みなとホテル
    • Year and Date
      2009-04-13
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] A development of beam profile monitor for high intensity beams2009

    • Author(s)
      Yoshinori Hashimoto
    • Organizer
      Fiscal year 20's HIMAC research debrief
    • Place of Presentation
      Minato-Hotel in Chiba
    • Year and Date
      2009-04-13
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] 大強度陽子ビームのためのビームプロファイルモニターの開発2009

    • Author(s)
      橋本義徳
    • Organizer
      放射医学総合研究所H2O年度共同利用研究報告会
    • Place of Presentation
      千葉みなとホテル
    • Year and Date
      2009-04-13
    • Related Report
      2007 Annual Research Report

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Published: 2006-04-01   Modified: 2016-04-21  

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