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@unpublished{min:ipac2021-wexc01, author = {C.-K. Min}, title = {{Generation of High-Brightness Self-Seeded X-Ray Free Electron Laser}}, booktitle = {Proc. IPAC'21}, language = {english}, intype = {presented at the}, series = {International Particle Accelerator Conference}, number = {12}, venue = {Campinas, SP, Brazil}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {08}, year = {2021}, note = {presented at IPAC'21 in Campinas, SP, Brazil, unpublished}, abstract = {{At the PAL-XFEL, we demonstrate substantially improved self-seeded XFEL performance, which promises to add another popular XFEL operation mode with up to ~mJ pulse energy at 9.7 keV (peak spectral brightness, 3.2×10³⁵ photons s⁻¹ mm⁻² mrad⁻² (0.1%BW)⁻¹) and wide tunability (3.5-14.6 keV). The machine is tuned to get stable seeding and its monochromatic amplification process and provide a stable amplitude (better than filtered SASE using DCM) and the time-bandwidth product is close to transform-limited. The suppression ofμbunching instability using a laser heater is much more effective in this narrow spectral bandwidth compared to SASE mode with a broad spectrum. The benefit of this seeded XFEL is demonstrated in serial femtosecond crystallography experiments.}}, }