研究概要

主要論文

「*」は、理研外のみでの成果です。

• 1. Togawa K.:
  "Slice emittance measurements using a slit-grid system and a fast wall-current monitor"
  Review of Scientific Instruments 95, 043304 (2024)
• 2. Magome T. et al.:
  "Precise measurement of the work function of a hot CeB6 thermionic cathode through photoelectron yield spectroscopy using a tunable pulsed laser"
  Journal of Applied Physics 133, 165107 (2023)
• 3. Togawa K. et al.:
  "Frequency-segmented power amplification using multi-band radio frequency amplifiers to produce a high-voltage pulse"
  Review of Scientific Instruments 93, 073304 (2022)
• 4. Ohkochi T. et al.:
  "Multilateral surface analysis of the CeB6 electron-gun cathode used at SACLA XFEL",
  Journal of Synchrotron Radiation 28, pp.1729 (2021)
• 5. Owada S. et al.:
  "A soft X-ray free-electron laser beamline at SACLA: the light source, photon beamline and experimental station"
  Journal of Synchrotron Radiation 25, pp.282 (2018)
• 6. Asaka T. et al.:
  "Low-emittance thermionic-gun-based injector for a compact free-electron laser"
  Physical Review Accelerators and Beams 20, 080702 (2017)
• 7. Ishikawa T. et al.:
  "A compact X-ray free-electron laser emitting in the sub-angstrom region"
  Nature Photonics 6, pp.540 (2012)
• 8. Shintake T. et al.:
  "A compact free-electron laser for generating coherent radiation in the extreme ultraviolet region"
  Nature Photonics 2, pp.555 (2008)
• 9. Togawa K. et al.:
  "CeB6 electron gun for low-emittance injector"
  Physical Review Special Topics Accelerators and Beams 10, 020703 (2007)
• 10. *Togawa K. et al.:
  "Surface charge limit in NEA superlattice photocathodes of polarized electron source"
  Nuclear Instruments and Methods in Physics Research A 414, pp.431 (1998)

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