Second Korea/Sweden Advanced X-ray Science Symposium

28 Sept 2025, 18:00 → 30 Sept 2025, 18:00 Europe/Berlin

MAX III Meeting Room - Floor 4 (MAX IV Laboratory)

Aymeric Robert (MAX IV Laboratory), Hyunjung Kim (Sogang University)

Following the success of the first Korea/Sweden Advanced X-ray Science Symposium, organized in Lund and funded by KNTEC on September 22-24, 2024, the second edition will take place in Lund on September 28-30, 2025.

 

                    

 

Pictures from the first Korea/Sweden Symposium in 2024

We want to thank KNTEC for their financial support.

24th LINC WS Program Sheet v4+QR code.pdf

Sunday 28 September

18:30 → 20:30 Welcome Reception: Korean Delegates and invited guests only

Korean Delegates and invited guests

Monday 29 September

09:00 → 10:45 Tour of MAX IV

09:00 Welcome to MAX IV

Speaker: Olof Karis (MAX IV)

09:10 Tour

10:45 → 11:15 Fika

11:15 → 12:20 Session 1: Weclome and Introductions: Welcome and Introductions

Chair : O. Karis

Convener: Olof Karis (MAX IV)

11:15 Workshop Introduction

Speaker: Hyunjung Kim (Sogang University)

11:25 Welcome from KNTEC

Speaker: Heewoong Park (KNTEC)

11:30 MAX 4U – Our vision for MAX IV

In 2016, MAX IV inaugurated the first fourth-generation storage ring in the world. With unprecedented performance, this new accelerator paved the way for a new era of X-ray science. Currently, four more fourth-generation light sources are in operation, with many more to come online by 2040. Overall, the accelerator community is making considerable advancements in Multi-Bend Achromat (MBA)-type lattices. This is to such an extent that, whereas MAX IV paved the way for fourth-generation light sources, we will have difficulties competing with other synchrotrons in the future.
With this in mind, we developed our vision for the laboratory to ensure the excellence, relevance, and leadership of Swedish academic and industrial research with X-rays for the next decades.
This is called MAX 4U, and is our proposal to upgrade our 3GeV storage ring [1]. MAX 4U will reduce the 3GeV ring horizontal emittance further from the current of 328pm×rad to better than 100pm×rad on the horizon of the early 2030s. Beyond an accelerator upgrade, MAX 4U provides opportunities for beamline performance improvements that will keep MAX IV a leading platform for accelerating science, discovery, and innovation.
[1] https://maxiv.lu.se/max4u

Speaker: Dr Aymeric Robert (MAX IV Laboratory)

12:20 → 13:40 Group Photo & Lunch

13:40 → 15:40 Session 2 : Coherent X-ray Imaging I: Session 2 : X-ray Coherent Imaging I

Convener: Aymeric Robert

13:40 Coherent X-ray Diffraction Imaging: A Pathway for Sustainable Energy and Environment Research

Speaker: Hyunjung Kim (Sogang University)

14:10 Imaging of smallest signals - hard x-ray dichroic ptychography at the iron K edge

When X-ray microscopy results are reported a high amount of consideration is given the metric of resolution. Not a single result can be published without indicating the smallest feature size that can be resolved. With a pursuit for resolving ever smaller, and thus thinner, features another metric becomes more and more important, but is so far rarely reported [1,2] : sensitivity, the capability to distinguish between tiny differences in the signal strength.
In the presented work we explore the limits of how little signal can be detected with current setups and approaches. As the demonstration example we chose the hard X-ray ptychographic dichroic signal from 1μm thick Fe/Gd films [3,4] recorded at the NanoMAX beamline [5,6] at MAX IV. The very specific sample was chosen, because the electronic contribution of the homogeneous sample thickness cancels out and the magnetic signal can be arbitrarily small when tuning the probing beams photon energy.
We reliably recovered signals below 1 mrad in relative phase shift, the smallest signals recovered via ptychography reported to date.

Acknowledgments
We acknowledge the MAX IV Laboratory for beamtime on the NanoMAX beamline under proposal 20240988. Research conducted at MAX IV, a Swedish national user facility, is supported by Vetenskapsrådet (Swedish Research Council, VR) under contract 2018-07152, Vinnova (Swedish Governmental Agency for Innovation Systems) under contract 2018-04969 and Formas under contract 2019-02496.

References
[1] Y. Takahashi et al. J. Synchrotron Rad. 30, 989–994 (2023)
[2] N. Okawa et al. Microscopy and Microanalysis 30.5 836-843 (2024)
[3] C. Donnelly et al. Phys. Rev. B 94, 06442 (2016)
[4] J. Neethirajan et al. Phys. Rev. X 14, 031028 (2024)
[5] D. Carbone et al. J. Synchrotron Rad. 29, 876-887 (2022)
[6] U. Johansson et al. J. Synchrotron Rad. 28, 1935-1947 (2021)

Speaker: Maik Kahnt (MAX IV)

14:40 Designing Next-Generation Coherent Scattering Beamlines at Korea-4GSR

Speaker: Sungsoo Ha

15:00 Pushing time-resolved 3D X-ray imaging at high-brilliant sources

Speaker: Pablo Villanueva Perez

15:40 → 16:10 Fika

16:10 → 17:40 Session 3 : Full field & dark field imaging: Session 3 : Full field & dark field Imaging

16:10 Tomography at DanMAX, the material science beamline

Speaker: Dr Innokenty Kantor (MAX IV laboratory)

16:40 Improving the coherence of X-ray sources

Speaker: Seong Hee Park

17:10 Dark field imaging

Speaker: Sangsoo Kim

18:30 → 20:30 Workshop Dinner: Korean Delegates, workshop speakers and invited guests

Korean Delegates, Speakers, and Guests

Tuesday 30 September

08:30 → 10:30 Session 4 : Advanced Spectroscopy

Convener: Joachim Schnadt (MAX IV Laboratory & Lund University)

08:30 Tracking Phase and Spin-State Evolution in Electrocatalysts via Operando X-ray Spectroscopy

Speaker: Heejong Shin

09:00 Korea-4GSR as a Platform for Advanced In-situ and Operando X-ray Spectroscopy

Speaker: Ki-jeong Kim (Pohang Accelerator Laboratory, Korea)

09:30 The status of APXPS instrumentation at 4th generation synchrotrons

MAX IV operates a suite of instruments dedicated to X-ray spectroscopy, several of which offer advanced operando and in-situ methods to study materials under operational conditions. Specifically, on the 3 GeV ring, the worlds first operational 4th generation synchrotron light source, the HIPPIE beamline provides extensive state-of-the-art ambient pressure photoelectron spectroscopy instrumentation.

This talk will overview our latest developments, focussing on time resolved methods to probe reaction kinetics and new sample environments that unlock new possibilities. Highlights will include a new reaction cell allowing measurements at high temperatures with inbuilt valves for controlling gas flow, our first studies in plasma environments, a demonstration of APXPS combined with IR spectroscopy, and our first steps in the direction of time-resolved electrochemical APXPS.

Speaker: Robert Temperton

10:00 Origin of topotactic phase transition of LaCoO3 thin films with in situ XRD and ambient pressure hard X-ray photoelectron spectroscopy

Speaker: Simon Mun

10:30 → 11:00 Fika

11:00 → 13:00 Session 5: Multimodal & Novel Microscopy

Convener: Simon Mun

11:00 Multimodal and in situ Imaging at the Nano-Diffraction Endstation of NanoMAX

Speaker: Sebastian Kalbfleisch

11:30 SAXS imaging: present and future

Speaker: Kim Nygård

12:00 SoftiMAX- STXM

Speaker: Karina Thånell (MAX IV Laboratory)

12:30 Design progress and key science of Nanoprobe beamline at Korea-4GSR

Speaker: Jaeyong Shin (Pohang Accelerator Laboratory, POSTECH)

13:00 → 13:45 Lunch

13:45 → 16:15 Session 6: Coherent Imaging II

Convener: hyunjung Kim

13:45 TBD

14:15 Enhancing resolution with the extended image restoration method: strain field energy and correlation length analysis in Bragg Coherent X-ray diffraction imaging

Speaker: Kyuseok Yun

14:45 Imaging ferroic domain dynamics with nanoscale X-ray diffraction

Speaker: Jesper Wallentin (Div. Synchrotron Radiation Research, Lund University)

15:15 Increasing flexibility of strain imaging via Bragg Coherent Diffraction Imaging

Speaker: Megan Hill (Postdoc, NanoMAX)

15:45 Bragg Ptychography: next frontiers of crystal microscopy at 4th generation X-ray sources

Speaker: Gerardina Carbone

16:15 → 16:45 Conclusion & Goodbye Fika: Conclusion & GoodBye Fika