2月14日、15日に韓国のPOSTECHで「Workshop on Science Outlook and R&D Issues for an X-Ray Free Electron Laser Oscillator (XFELO)」が開かれた。

プログラムは以下の通り。
Feb. 14
8:40-9:00 Greetings and Workshop goals
9:00-9:30 Introduction to XFELO (Kwang-Je Kim, ANL)
9:30-10:00 KEK/JAERI ERL project and XFELO (Hiroshi Kawata, KEK)
10:00-10:30 Photo-taking and Coffee Break
10:30-11:00 Hrad X-ray Photoemission with XFELO (Charles Fadley, UC Davis)
11:00-11:30 XFELO for Photon correlation spectroscopy (Hyun Jung Kim, Sogang U)
11:30-12:00 IXS (Inelastic X-ray Scattering) and atto-second imaging (Yu Gan, UIUC)
12:00-13:30 Lunch
13:30-14:00 IXS with sub-meV resolution: opening new frontiers in the study of the dynamics in disordered systems (Giulio Monaco, ESRF)
14:00-14:30 Coherent X-ray imaging (Do Young Noh, GIST)
14:30-15:00 Pump-probe experiment (Hyo-Chul Lee, KAIST)
15:00-15:30 Coffee Break
15:30-16:00 X-ray microscopy (Jung Ho Jae,..)
16:00-16:30 Biological application (Yun Je Cho, POSTECH or KAIST)
16:30-17:00 Mössbauer spectroscopy (Jörg Evers, MPI Heidelberg)
17:00-17:30 Sub-Angstrom stabilized XFELO for nuclear resonance metrology and fundamental physics (Bernhard Adams, ANL)
18:00-20:00 Banquet
Feb 15
8:30-9:00 Current status and future expectations of the performance and cost of CW superconducting linacs (George Neil, Jlab)
9:00-9:30 Advances on X-ray optics and stabilization for XFELO (Yuri Shvyd’ko, ANL)
9:30-10:00 Nano-radian stages and low-vibrational cooling of optical elements (Deming Shu, ANL)
10:00-10:30 Stabilization techniques at LIGO (Koji Arai, Cal Tech)
10:30-11:00 Coffee Break
11:00-12:00 Discussion on XFELO R&D issues (Nikolay Vinokurov, Chair)
12:00-13:30 Lunch
13:30-14:10 Discussion on XFELO R&D Issues (continued)
14:10-14:30 Summary on XFELO R&D Issuse (Nikolay Vinokurov)

加速器のR&Dはもちろんの事、XFELOでどのようなサイエンスが開けるか、アイデアを含めて議論する場となっていた。また、PALではXFELのプロジェクトも予算化されて建設が行われており、SASE-XFEL, SEEDED-XFEL, そして XFELOとそれぞれに分類してサイエンスの議論が行われた。