Research on Coded Aperture-based high-speed x-ray beam profile monitors.

2012 Fiscal Year Final Research Report

• Project/Area Number: 22604012
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Quantum beam science
• Research Institution: High Energy Accelerator Research Organization
• Principal Investigator: FLANAGAN John 大学共同利用機関法人高エネルギー加速器研究機構, 加速器研究施設, 准教授 (00321539)
• Co-Investigator(Kenkyū-buntansha): MITSUHASHI Toshiyuki 大学共同利用機関法人高エネルギー加速器研究機構, 加速器研究施設, 教授 (00321539) ; FUKUMA Hitoshi 大学共同利用機関法人高エネルギー加速器研究機構, 加速器研究施設, 教授 (40150007) ; IKEDA Hitomi 大学共同利用機関法人高エネルギー加速器研究機構, 加速器研究施設, 助教 (80370071) ; VARNER Gary ハワイ大学, 物理・天文学科, 准教授
• Project Period (FY): 2010 – 2012
• Keywords: 加速器 / x線 / モニター / ビームプロファイル / ビーム診断 / Coded Aperture / 高速 / 高分解能

Research Abstract

We proposed to investigate the use of coded-aperture imaging techniques for x-raybeam profile monitoring of beams with transverse beam sized below 10 μm. At the ATF2 extraction line, we built an x-ray beam line using the final upstream bending magnet as an x-ray source, and successfully measured beam sizes down to ~7.5 μm, the smallest beam size achievable through tuning of the extraction line optics. This beam size represents a new world record for the smallest beam size measured using x-ray coded aperture optics.We also developed parallel-processed code for analysis of beam profiles from coded aperture images, including non-Gaussian components.

Research Products

• [Presentation] FIRST MEASUREMENTS WITH CODED APERTURE X-RAY MONITOR AT THE ATF2 EXTRACTION LINE (2012)
  • Author(s): J.W. Flanagan, M. Arinaga, H. Fukuma, H. Ikeda, T. Mitsuhashi, G.S. Varner
  • Organizer: 1^<st>International Beam Instrumentation Conference (IBIC2012)
  • Place of Presentation: つくば市
  • Year and Date: 2012-10-01
• [Presentation] Refined analysis of electron-cloud blow-up data at CesrTA using Coded Aperture and Pinhole X-ray Beam Size Monitor data (2012)
  • Author(s): J.W. Flanagan
  • Organizer: The 5^<th>Electron Cloud Workshop (ECLOUD12)
  • Place of Presentation: イタリア・エルバ島
  • Year and Date: 2012-06-08
• [Presentation] DIAGNOSTICS FOR ULTRA-LOW EMITTANCE BEAMS (2011)
  • Author(s): J.W. Flanagan
  • Organizer: 2^<nd>International Particle Accelerator Conference,(IPAC2011)
  • Place of Presentation: スペイン・サンセバスチャン
  • Year and Date: 2011-09-07
• [Presentation] OBSERVATION OF ELECTRON CLOUDINSTABILITY EFFECTS AT CESRTA USING CODED APERTURE X-RAY MONITOR (2011)
  • Author(s): J.W. Flanagan#, M. Arinaga, H. Ikeda, K. Ohmi, M. Billing, G. Dugan, M.A. Palmer, D.P. Peterson, N. Rider, K. Sonnad
  • Organizer: 第8回日本加速器学会年会
  • Place of Presentation: つくば市
  • Year and Date: 2011-08-03
• [Presentation] SINGLE-SHOT RESOLUTION OF X-RAY MONITOR USING CODED APERTURE IMAGING (2011)
  • Author(s): J.W. Flanagan, M. Arinaga, H. Fukuma, H. Ikeda, T. Mitsuhashi, J.S. Alexander, M.A. Palmer, D.P. Peterson, N. Rider, G. Varner
  • Organizer: 10^<th>European Workshop on Beam Diagnostics and Instrumentation for Particle Accelerators (DIPAC2011)
  • Place of Presentation: ドイツ・ハンブルグ
  • Year and Date: 2011-05-18
• [Presentation] SuperKEKB 用 X 線ビームプロファイルモニタの検討 (2010)
  • Author(s): John W. Flanagan, Mitsuhiro Arinaga, Hitomi Ikeda, Hitoshi Fukuma, Ken-ichi Kanazawa, Toshiyuki Mitsuhashi, Gary S. Varner
  • Organizer: 第7回日本物理学会年会
  • Place of Presentation: 姫路市
  • Year and Date: 2010-08-04