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.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
- 2.T. Tanaka.
"Difference frequency generation in free electron lasers"
Opt. Lett. 43, 4485 (2018)
- 3.T. Tanaka.
"Numerical methods for free electron laser simulations"
Journal of Electromagnetic Waves and Applications 32, 371 (2018)
- 4.R. Kinjo, A. Kagamihata, T. Seike et al.:
"Lightweight-compact variable-gap undulator with force cancellation system based on multipole monolithic magnets"
Review of Scientific Instruments 88, 073302 (2017)
- 5.T. Tanaka and R. Kinjo:
"High gain harmonic generation free electron lasers enhanced by pseudoenergy bands"
Phys. Rev. Accel. Beams 20, 080706 (2017)
- 6.T. Tanaka.
"Current status and future perspectives of accelerator-based x-ray light sources"
Journal of Optics 19, 093001 (2017)
- 7.T. Tanaka:
"Coherent mode decomposition using mixed Wigner functions of Hermite--Gaussian beams"
Optics Letters 42, 1576 (2017)
- 8.Y. Kida, R. Kinjo and T. Tanaka:
"Synthesizing high-order harmonics to generate a sub-cycle pulse in free-electron lasers"
Applied Physics Letters 109, 151107 (2016)
- 9.T. Bizen et al.:
"Radiation-induced magnetization reversal causing a large flux loss in undulator permanent magnets"
Scientific Reports 6, 37937 (2016)
- 10.T. Tanaka:
"Reducing the group velocity of coherent radiation for upconverting the single-cycle electron density modulation"
Applied Physics Letters 108, 061106 (2016)
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