The 6th PAL-XFEL Users' Meeting

Jul 2, 2026, 9:00 AM → Jul 3, 2026, 5:00 PM Asia/Seoul

POSCO International Center, POSTECH

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Thu, July 2

12:00 PM → 1:00 PM Registration

1:00 PM → 1:10 PM Welcome Remarks

1:10 PM → 1:30 PM PALXFEL Facility Reports

1:30 PM → 1:40 PM Group Photo

1:40 PM → 2:40 PM Invited Talks

1:40 PM Surface Disordering and Shock Wave Generation using Time-resolved Dark Field X-ray Microscopy

Speaker: Prof. Hyunjung Kim (Sogang University)

2:10 PM Time-resolved X-ray scattering study of charge order in TiSe 2 and cuprates

Speaker: Prof. Yingying Peng (Peking University)

2:40 PM → 3:00 PM Coffee Break

3:00 PM → 4:00 PM User Program Presentations

3:00 PM Sample Delivery Methods for SFX at PAL-XFEL: Current Status and Future Directions

Speaker: Prof. Ki Hyun Nam (Kookmin University)

3:20 PM Development of a Polycapillary Hard X-ray Spectrometer for Dilute Time-Resolved XAS: First Commissioning Results

Speaker: Prof. Jinkyu Lim (Hanbat National University)

3:40 PM How Material Behaves Inside Planets Revealed by XFEL Experiments under Extreme Conditions

Speaker: Prof. Huijeong Hwang (GIST)

4:00 PM → 4:20 PM Coffee Break

4:20 PM → 5:00 PM Student Talks

4:20 PM Structural insights into the ADP-bound p97/VCP revealed by room-temperature XFEL crystallography N-D1 hexamer

Speaker: Seri Koh (Soongsil University)

4:40 PM Resolving Electronic Final-State Channels Evolution with Resonant X-ray Emission and Tracking Temporal

Speaker: Haneol Oh (KAIST)

5:00 PM → 5:20 PM One-minute Pitch for poster presentations

5:20 PM → 8:00 PM Banquet

Fri, July 3

9:00 AM → 10:00 AM Invited Talks

9:00 AM Unveiling the Origin of Water's Anomalous Properties using PAL-XFEL

Speaker: Prof. Kyung Hwan Kim (POSTECH)

9:30 AM Investigation of Extreme Properties of Warm Dense Matter with X-ray Free Electron Lasers

Speaker: Prof. Byoung-ick Cho (GIST)

10:00 AM → 11:30 AM Poster Presentation

11:30 AM → 12:00 PM Poster Awards

12:00 PM → 1:00 PM Lunch

1:00 PM → 3:00 PM Exploring Chemical Reaction Dynamics with PAL-XFEL : A Symposium for Young Scientists

Conveners: Jae Hyuk Lee, Rory Ma (PAL XFEL)

1:00 PM Spectroscopy “Tracking Electron Localization in Oxygen Vacancy-rich Blue TiO₂ Using XFEL-based Ti K-edge X-ray Absorption Spectroscopy”

Speaker: Tae Gyun Woo (KAIST)

1:25 PM Liquidography “Unveiling Hidden Wavepacket Dynamics in Time-Resolved X-ray Scattering Data via Singular Spectrum Analysis”

Speaker: Jaeseok Kim (DGIST)

1:50 PM Break

2:00 PM Liquidography “Metal–metal bond formation and subsequent solvent recruitment in a photoexcited gold(I) phosphine dimer visualized with femtosecond X-ray liquidography”

Speaker: Kyung Won Lee (KAIST)

2:25 PM Beamline update and discussion

1:00 PM → 3:00 PM Sample Preparation Strategies for Serial Femtosecond Crystallography Beamtime

Convener: Jaehyun Park (PAL-XFEL)

1:00 PM A practical guide to serial femtosecond crystallography

Speaker: Jaehyun Park (Pohang Accelerator Laboratory)

1:30 PM Mini lecture on basic design and operation scheme of crystal delivery instruments: fixed target & injector systems

Speaker: Jaehyun Park (Pohang Accelerator Laboratory)

1:50 PM Break

2:00 PM Open discussion and Q&A

2:20 PM Hands-on practice with crystal delivery instruments

1:00 PM → 3:00 PM Ultrafast Lattice Dynamics Probed by Dark-field X-ray Microscopy

Convener: Sangsoo Kim (PAL-XFEL)

1:00 PM Current Status of DFXM at NCI End-station

Speaker: Sangsoo Kim (Pohang Accelerator Laboratory)

1:15 PM Nanolayer-confined strain waves in femtosecond-optical-vortex-excited multiferroic BiFeO3

Speaker: Sung Yun Lee (POSTECH)

1:35 PM Tr-DFXM at PAL-XFEL: Observing Ultrafast Melting and Supersonic Shock Waves Across Multiple Material Systems

Speaker: Sung Soo Ha (KBSI)

1:55 PM Break

2:10 PM Open discussion and feedback

1:00 PM → 3:00 PM Ultrafast Photo-induced Dynamics in Condensed Matter at PAL-XFEL

Conveners: Hoyoung Jang (Pohang Accelerator Laboratory), SaeHwan Chun (PAL-XFEL)

1:00 PM Dynamical Relationship Between Charge and Spin Density Wave Orders in Mn3Sn

Speaker: Byoungkyu Kim (DGIST)

1:20 PM Ultrafast Resonant X-ray Scattering of Cooperative Jahn-Teller Order in LaMnO3

Speaker: Minho Kang (KAIST)

1:40 PM Non-equilibrium Order Parameter Dynamics in Kagome Metal Systems

Speaker: Seongyong Lee

2:00 PM Introduction to the FXS Endstation and Scientific Opportunities

Speaker: Kooktae Kim

2:15 PM Introduction to the RSXS Endstation and Scientific Opportunities

Speaker: Gyeongbo Kang

2:30 PM Open Discussion, User Feedback, and Group Photo

3:00 PM → 4:00 PM PAL-XFEL Facility Tour