研究概要

主要論文

• 1. Iwai E., Inoue I, Maesaka H., Inagaki T., Yabashi M., Hara T. and Tanaka H.:
  "Spectral-brightness optimization of an X-ray free-electron laser by machine-learning-based tuning"
  J. Synchrotron Rad. 30, 1048 (2023).
• 2. Hiraiwa T., Soutome K., and Tanaka H.:
  "Suppression of Emittance Variation in Extremely Low Emittance Light Source Storage Rings"
  Phys. Rev. Accel. Beams 25, 040703 (2022).
• 3. Hara T. et al.:
  "Low-emittance beam injection for a synchrotron radiation source using an X-ray free-electron laser linear accelerator"
  Phys. Rev. Accel. Beams, vol. 24, 110702 (2021).
• 4. Tono K., Hara T., Yabashi M. and Tanaka H.:
  "Multiple-beamline operation of SACLA"
  J. Synchrotron Rad. 26, 595 (2019).
• 5. Inoue I. et al.:
  "Generation of narrow-band X-ray free-electron laser via reflection self-seeding"
  Nature Photon. 13, 319 (2019).
• 6. Maesaka H., Hara T., Togawa K., Inagaki T. and Tanaka H.:
  "Brightness analysis of an electron beam with a complex profile"
  Phys. Rev. Accel. Beams 21, 050703 (2018).
• 7. Bizen T. et al.:
  "Radiation-induced magnetization reversal causing a large flux loss in undulator permanent magnets"
  Sci. Rep. 6, 37937 (2016).
• 8. Tanaka T.:
  "Proposal to generate an isolated monocycle X-ray pulse by counteracting the slippage effect in free-electron lasers"
  Phys. Rev. Lett. 114, 044801 (2015).
• 9. Hara T. et al.:
  "Two-colour hard X-ray free-electron laser with wide tunability"
  Nature Commun. 4, 2919 (2013).
• 10. Ishikawa T. et al.:
  "A compact X-ray free-electron laser emitting in the sub-angstrom region"
  Nature Photon. 6, 540 (2012).

研究成果（プレスリリース）

• 

  2022年7月1日
  市販のLED照明をX線放射線環境下で使用可能に

• 

  2022年4月25日
  次世代放射光実験中に生じるX線の輝度変動を大幅に低減

• 

  2020年9月11日
  強制力の働く調和振動子が奏でる光の回折的振る舞い

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