RIKEN SPring-8 Center Advanced X-Ray Laser Group
Group Director: Takashi Tanaka (D.Eng.)
The mission of Advanced X-ray Laser Group is to upgrade the light source performance of SACLA (XFEL: X-ray free electron laser facility) and SPring-8 (large-scale SR: synchrotron radiation facility), which are in operation in RIKEN SPring-8 Center (RSC). We are developing magnetic devices called undulators, which produce intense X-ray laser and highly brilliant SR by deflecting the high energy electron beam. We also explore more advanced XFEL and SR concepts that will open up a new possibility of X-ray science. By promoting these R&Ds, we pursue the goal of enhancing the light source performances of SACLA and SPring-8, and establish an “ultimate X-ray laser facility” in RSC, which eventually leads to creation of a new field of photon science exploiting X-ray lasers.
Main Research Fields
- Interdisciplinary Science & Engineering
Related Research Fields
- Mathematical & Physical Sciences
- Quantum Beam Science
- Applied Physics
- Integrated Engineering
- free electron laser
- synchrotron radiation
- permanent magnet
- 1.R. Kinjo and T. Tanaka.:
"Undulator configuration for helicity switching in in-vacuum undulators"
Phys. Rev. Accel. Beams 23, 020705 (2020)
- 2.T. Tanaka.:
"Electron bunch compression with an optical laser"
Phys. Rev. Accel. Beams 22, 110704 (2019)
- 3.T. Tanaka and P. R. Ribic.:
"Shortening the pulse duration in seeded free-electron lasers by chirped microbunching"
Opt. Express 27, 30875-30892 (2019)
- 4.T. Tanaka and A. Kagamihata.:
"Demonstration of high-performance pole pieces made of monocrys- talline dysprosium for short-period undulators"
Journal of Synchrotron Radiation 26, 1220-1225 (2019)
- 5.T. Tanaka.:
"Universal representation of undulator phase errors"
Phys. Rev. Accel. Beams 21, 110704 (2018)
- 6.T. Bizen, R. Kinjo and T. Tanaka.:
"Enhancing the radiation resistance of undulator permanent magnets by tilting the easy axis of magnetization"
Phys. Rev. Lett. 121, 124801 (2018) 4
- 7.T. Tanaka.:
"Difference frequency generation in free electron lasers"
Opt. Lett. 43, 4485 (2018)
- 8.T. Tanaka.:
"Numerical methods for free electron laser simulations"
Journal of Electromagnetic Waves and Applications 32, 371 (2018)
- 9.T. Tanaka and R. Kinjo.:
"High gain harmonic generation free electron lasers enhanced by pseudoenergy bands"
Phys. Rev. Accel. Beams 20, 080706 (2017)
- 10.T. Tanaka.:
"Coherent mode decomposition using mixed Wigner functions of Hermite--Gaussian beams"
Optics Letters 42, 1576 (2017)
Recent Research Results
- Takashi Tanaka
- Group Director
- Ryota Kinjo
- Research Scientist
Structural Biology Facility 311,
1-1-1 Kouto, Sayo-cho, Sayo-gun
Hyogo 679-5148, Japan
Email: ztanaka [at] spring8.or.jp