A study of 8 GeV mono-energetic photon beam production

2013 Fiscal Year Final Research Report

• Project/Area Number: 24654056
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Single-year Grants
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Tohoku University
• Principal Investigator: SHIMIZU Hajime 東北大学, 電子光理学研究センター, 教授 (20178982)
• Co-Investigator(Kenkyū-buntansha): MURAMATSU Norihito 東北大学, 電子光理学研究センター, 准教授 (40397766) ; MIYABE Manabu 東北大学, 電子光理学研究センター, 助教 (10613672)
• Project Period (FY): 2012-04-01 – 2014-03-31
• Keywords: 逆コンプトン散乱 / レーザー電子光 / X-FELO / アンジュレータ

Research Abstract

This project aims at making a high energy mono-energetic photon beam possible by reflecting synchrotron radiation X-ray to have Compton backward scattering from circulating 8 GeV electrons in the SPring-8 storage ring. The first thing to do is to reflect synchrotron radiation X-ray by 180 degrees. Second, the reflected X-ray has to be controlled to give a head-on collision with 8 GeV electrons circulating in the ring. Then finally, we will be able to observe high energy mono-energetic photons produced by means of Compton backward scattering of the reflected X-ray from the 8 GeV electrons.
It takes more time to attain the final goal. And we are still at the first stage. In the present project we succeeded in measuring 180-degree reflected 9.1 keV X-ray of synchrotron radiation, employing a Si(008) Bragg reflector.

Research Products

• [Journal Article] Development of High Intensity Laser-Electron Photon Beams up to 2.9 GeV at the SPring-8 LEPS Beamline (2014)
  • Author(s): N. Muramatsu, Y. Kon, S. Daté, Y. Ohashi, H. Akimune, J.Y. Chen, M. Fujiwara, S. Hasegawa, T. Hotta, T. Ishikawa, T. Iwata, Y. Kato, H. Kohri, T. Matsumura, T. Mibe, Y. Miyachi, Y. Morino, T. Nakano, Y. Nakatsugawa, H. Ohkuma, T. Ohta, M. Oka, T. Sawada, A. Wakai, K. Yonehara, C.J. Yoon, T. Yorita, M. Yosoi
  • Journal Title: Nucl. Instr. Meth Volume: A737 Pages: 184-194
  • Peer Reviewed
• [Journal Article] SPring-8新レーザー電子光ビームラインLEPS2 : 建設とコミッショニング (2013)
  • Author(s): 村松憲仁, 與曽井優, 依田哲彦, 鈴木伸介
  • Journal Title: 学会誌「加速器」 Volume: vol.10 No.3 Pages: 171-180
• [Journal Article] レーザー電子光ビームライン(BL31LEP)稼働 (2013)
  • Author(s): 村松憲仁, 中野貴志, 與曽井優, 依田哲彦, 清水肇, 石川貴嗣, 宮部学
  • Journal Title: SPring-8利用者情報 Volume: vol.18 No.2 Pages: 75-79
• [Journal Article] A detailed test of a BSO calorimeter with 100-800 MeV positrons (2012)
  • Author(s): T. Ishikawa, H. Fujimura, R. Hashimoto, J. Kasagi, R. Kitazawa, S. Kuwasaki, A. Nakamura, K. Nawa, Y. Okada, M. Sato, H. Shimizu, K. Suzuki, Y. Tajima, S. Takahashi, Y. Tsuchikawa, H. Yamazaki, H.Y. Yoshida
  • Journal Title: Nucl. Instr. Meth Volume: A694 Pages: 348-360
  • Peer Reviewed
• [Presentation] Recent result of LEPS and prospects of LEPS2 (2014)
  • Author(s): M. Miyabe
  • Organizer: Hadrons from Quarks and Gluons
  • Place of Presentation: Hirschegg, Austria
  • Year and Date: 2014-01-13
• [Presentation] Recent status and plans at SPring-8 LEPS2 facility (2013)
  • Author(s): M. Miyabe
  • Organizer: TITP Workshop on Hadron in Nucleus
  • Place of Presentation: Kyoto University
  • Year and Date: 2013-11-01
• [Presentation] First Beam Observation and Near Future Plans at SPring-8 LEPS2 Experiment (2013)
  • Author(s): N. Muramatsu
  • Organizer: International Conference on the Structure of Baryons
  • Place of Presentation: Glasgow, Scotland
  • Year and Date: 2013-06-27
• [Presentation] Production of Intense High Energy Gamma Beam for LEPS2 Project at SPring-8 (2013)
  • Author(s): T. Yorita, N. Muramatsu, T. Hotta, T. Nakano, M. Oka, M. Yosoi, S. Date, Y. Ohashi, H. Ohkuma, M. Oishi, Y. Okayasu, M. Shoji, S. Suzuki, Y. Taniuchi
  • Organizer: 4^<th> International Particle Accelerator Conference
  • Place of Presentation: China
  • Year and Date: 2013-05-15
• [Presentation] Physics Programs at ELPH Tohoku (2013)
  • Author(s): H. Shimizu
  • Organizer: 2^<nd> International School for Strangeness Nuclear Physics
  • Place of Presentation: Sendai
  • Year and Date: 2013-02-20
• [Presentation] Recent Progress and Results of LEPS, LEPS2, and ELPH (2012)
  • Author(s): N. Muramatsu
  • Organizer: 20^<th> International IUPAP Conference on Few Body Problems
  • Place of Presentation: Fukuoka
  • Year and Date: 2012-08-21
• [Remarks]
  • URL: http://www.lns.tohoku.ac.jp/~hadron/