The 5th PAL-XFEL Users' Meeting

Jul 2, 2025, 12:00 PM → Jul 3, 2025, 6:30 PM Asia/Seoul

POSCO International Center, POSTECH

2025palxfelum_abstract_template.hwp

2025_PAL-XFEL_UM_Booklet.pdf

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Wednesday, July 2

Registration

Welcome Remarks

Status Reports

Convener: Dr Intae Eom (PAL)

Invited Talk I

1 Liquid-like spin dynamics in square-lattice iridates

Speaker: Prof. Bumjoon Kim (POSTECH)

Coffee break

Invited Talk II

2 In situ study of photocatalytic strain evolution and charge transfer in a single metal nanoparticle

Speaker: Prof. Joonseok Lee (Hanyang University)

Invited Talk III

3 Capturing the Catalytic Cycle of Cysteine Desulfurase: Structural Snapshots of Active and Inhibited States

Speaker: Prof. Wonchull Kang (Soongsil University)

One-minute Pitch for poster presentations

Group photo & Coffee break

Advancing Toward a Successful SFX Experiment and Data Processing

Convener: Sang Jae Lee (PALXFEL)

4 Sample preparation to acquire microcrystals using batch mode (inc. alternative way)

5 SFX Experiment

6 Data Preprocessing

7 Data Calculation, checking statistics

8 From obtaining a structure factor file to solve a protein structure

9 Case study

10 Open discussion and feedback

Discussion on Imaging Science in PAL-XFEL

Conveners: Sang Han Park (XFEL), Sunam Kim (POSTECH)

11 Light‐Induced Ultrafast X-Ray Imaging via Fourier Transform Holography (FTH)

Speaker: Dr Sang Han Park (PAL)

12 Femtosecond Time Resolved Bragg Coherent Diffraction Imaging (tr-BCDI)

Speaker: Dr Sunam Kim (PAL)

5:00 PM Break

13 Time-resolved single-particle imaging at XFEL facility

Speaker: Dr Chan Kim (European-XFEL)

14 Open Discussion

Exploring Chemical Reaction Dynamics with PAL-XFEL : A Symposium for Young Scientists

Conveners: Jae Hyuk Lee, Sang Han Park (XFEL)

15 Polaron study via Density Functional Theory calculation.

Speaker: Dr Kwangsik Jeong (Yonsei Univ.)

16 Wavelength-Dependent Structural Dynamics of [Au(CN)2−]3 Studied by Time-Resolved X-ray Liquidography

Speaker: Dr Hosung Ki (IBS)

5:00 PM Break

17 Dynamics of Photo-excited Charge Carriers in Liquid phase α-TiO2 measured using ultrafast tr-XAS

Speaker: Abhishek Katoch (Yonsei Univ.)

18 Solvent-dependent isomer formation dynamics of iodoform investigated via X-ray liquidography at PAL-XFEL

Speaker: Yongjun Cha (KAIST)

19 Elucidating Photoinduced Dynamics of Thioketone Molecules

Speaker: Haneol Oh (KAIST)

Ultrafast Photo-induced Dynamics in Condensed Matter at PAL-XFEL

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

20 Frustrated phonon with charge density wave (CDW) in vanadium Kagome metal

Speaker: Seung-Phil Heo (POSTECH)

21 Nematic response of FeTe in the ultrafast dynamics

Speaker: Jihyeon Hwang (Chungbuk National Univ.)

4:50 PM Break

22 fs-THz beamline at PLS-II

Speaker: Dr Hee Jun Shin (PAL)

23 Femtosecond X-ray Scattering (FXS) at PAL-XFEL

Speaker: Dr Sae Hwan Chun (PAL)

24 Resonant soft X-ray Scattering (RSXS) at PAL-XFEL

Speaker: Dr Hoyoung Jang (PAL)

25 Open discussion and feedback

Banquet

Thursday, July 3

Invited Talk IV

26 Photochemistry of the Biologically Relevant Disulfide Molecules by Femtosecond X-ray Spectroscopy

Speaker: Prof. Tae Kyu Kim (KAIST)

Invited Talk V

27 Light-induced ultrafast dynamics in 2D layered system

Speaker: Prof. Dongbin Shin (GIST)

Coffee break

Student Talk I

28 Deep learning for coherent diffraction imaging using XFEL

Speaker: Sung Yun Lee (POSTECH)

Student Talk II

29 Tracking the Melting Dynamics of Crystalline Ice using Time-resolved X-ray Scattering at PAL-XFEL

Speaker: Kichan Park (POSTECH)

Coffee break

Poster Presentation

Poster Awards & Closing