Research Summary

Selected Publications

• 1. H. Maesaka, H. Ego, S. Inoue, S. Matsubara, T. Ohshima, T. Shintake and Y. Otake.:
  "Sub-micron resolution rf cavity beam position monitor system at the SACLA facility"
  Nuclear Instruments and Methods., A 696, 66-74 (2012).
• 2. Y. Otake, T. Ohshima, N.Hosoda, H. Maesaka, T. Fukui, M. Kitamura and T. Shintake.:
  "LLRF and timing system for the SCSS test accelerator at SPring-8"
  Nuclear Instruments and Methods A 696, 151-163 (2012).
• 3. Y. Otake, H. Maesaka, S. Matsubara, S. Inoue, K. Yanagida, H. Ego, C. Kondo, T. Sakurai, T. Matsumoto and H. Tomizawa.:
  "Beam monitor system for an x-ray free electron laser and compact laser"
  Phys. Rev. ST Accel. Beams 16, 042802 (2013).
• 4. T. Inagaki, C. Kondo, H. Maesaka, T. Ohshima, Y. Otake, T. Sakurai, K. Shirasawa and T. Shintake.:
  "High-gradient C-band Linac for a Compact x-ray free-electron laser facility"
  Phys. Rev. ST Accel. Beams 17, 080702 (2014).
• 5. H. Ego, H. Maesaka, T. Sakurai, Y Otake, T. Hashirano and S. Miura.:
  "Tanasvers C-band deflecting structure for longitudinal electro-bunch-diagnosis in XFEL "SACLA""
  Nuclear Instruments and Methods A 795, 381-388 (2015).
• 6. Y. Otake, H. Maesaka, S. Matsubara and N.Hosoda and T. Ohshima.:
  "Timing and low-level rf system for an x-ray laser"
  Phys. Rev. Accel. Beams 19, 02001-1 -20 (2016).
• 7. T. Ohshima, H. Maesaka, S. Matsubara and Y. Otake.:
  "Error compensation of IQ modulator using two-dimensional DFT"
  Nuclear Instruments and Method., A 820 (2016) 65-74.
• 8. T. Sakurai, H. Ego, T. Inagaki, T. Asaka, D. Suzuki, S. Miura and Y. Otake.:
  "C-band disk-loaded-type accelerating structure for a high acceleration gradient and high-repetition-rate operation",
  Phys. Rev. Accel. Beams 20, 042003 (2017).
• 9. T. Asaka, H. Ego, H. Hanaki, T. Hara, T. Hasegawa, T. Hasegawa, T. Inagaki, T. Kobyashi, C. Kondo, H. Maesaka, S. Matsubara, S. Matsui, T. Ohshima, Y. Otake, T. Sakurai, S. Suzuki, Y. Tajiri, S. Tanaka, K. Togawa and H. Taknaka.:
  "Low-emittance thermionic-gun based injector for a compact free-electron laser"
  Phys. Rev. Accel. Beams 20, 080702 (2017)
• 10. T. Asaka, T. Inagaki, T. Magome, N. Nishimori, Y. Otake, T. Taniuchi, K, Yanagida, and H. Tanaka.:
  "Low-emittance radio-frequency electron gun using a gridded thermionic cathode"
  Phys. Rev. Accel. Beams 23, 063401 (2020)

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