Sebastian Richter is a physicist who joined the Photon Science Division at the Paul Scherrer Institute (PSI) in 2023. He studied physics at the Karlsruhe Institute of Technology (KIT) and the University of Tübingen, focusing on accelerator and medical physics. After more than three years at the European Organization for Nuclear Research (CERN) working on high-temperature superconductors (HTS) and HTS undulator magnets, he received his Ph.D. at KIT where he continued research on superconducting magnets at the Institute for Beam Physics and Technology collaborating with CERN as well as with KIT’s Institute of Technical Physics. Sebastian Richter started his work at PSI as a scientist in the summer of 2023 before the launch of the SLS2.0 upgrade, for which he is working on the realization of the undulator upgrade.

Design and Manufacturing of an HTS Helical Undulator Demonstrator for Compact FELs, S. C. Richter, A. Ballarino, A. Bernhard and A.-S. Müller (2024). IEEE Transactions on Applied Superconductivity, vol. 34, no. 3, pp. 1-7, May 2024, Art no. 4101507, doi: 10.1109/TASC.2024.3356449 .

High-Temperature Superconducting Undulator Prototype Coils for Compact Free-Electron Lasers, S. C. Richter, A. Ballarino, A. Bernhard, A. W. Grau, D. S. de Jauregui and A.-S. Müller (2023). IEEE Transactions on Applied Superconductivity, vol. 33, no. 5, pp. 1-7, Aug. 2023, Art no. 4100207, doi: 10.1109/TASC.2023.3242625 .

Status and Powering Test Results of HTS Undulator Coils at 77 K for Compact FEL Designs, S. C. Richter, A. Ballarino, T. H. Nes, D. Schoerling, A. Bernhard, and A.-S. Müller (2023). Journal of Physics: Conference Series, vol. 2420 Art. No. 012019, 2023, doi: 10.1088/1742-6596/2420/1/012019.

Effective Time Constants at 4.2 to 70 K in ReBCO Pancake Coils with Different Inter-Turn Resistances, T. H. Nes, G. de Rijk, G. Kirby, F. O. Pincot, J. Liberadzka-Porret, C. Petrone, S. C. Richter, J. van Nugteren, A. Kario, H. H. J. Ten Kate (2022). IEEE Transactions on Applied Superconductivity, vol. 32, no. 4, pp. 1-6, June 2022, Art no. 4600806, doi: 10.1109/TASC.2022.3148968.

Bending Radius Limits of Different Coated REBCO Conductor Tapes - An Experimental Investigation with Regard to HTS Undulators, S. C. Richter, D. Schoerling, S. I. Schlachter, B. Ringsdorf, A. Drechsler, A. Bernhard, and A.-S. Müller (2021). Proc. IPAC'21, Campinas, SP, Brazil, May 2021, pp. 3837-3840. doi: 10.18429/JACoW-IPAC2021-THPAB042.

Magnetic Characterization of a Superconducting Transverse Gradient Undulator for Compact Laser Wakefield Accelerator-Driven FELs,  K. Damminsek, A. Bernhard, A. W. Grau, H. J. Cha, M. Ning, S. C. Richter, R. Rossmanith, and A.-S. Müller (2021). Proc. IPAC'21, Campinas, SP, Brazil, May 2021, pp. 1772-1775. doi: 10.18429/JACoW-IPAC2022-WEPOST034.

XLS – D2.3: Conceptual Design Report, The CompactLight (XLS) Partnership (2021). Zenodo. doi: 10.5281/zenodo.6375645.

XLS – D5.1: XLS - D5.1: Technologies for the CompactLight Undulator, The CompactLight (XLS) Partnership (2019). Zenodo. doi: 10.5281/zenodo.5024409.