forthcoming articles

This paper presents a machine-learning-based approach for early fault detection in vacuum ion pumps at European XFEL by analyzing pressure data to detect fault precursors. The developed method enables predictive maintenance, reducing unplanned downtime and improving operational reliability.

A high-resolution monochromator for the 8.41 keV ¹⁶⁹Tm nuclear resonance is presented enabling nuclear resonant scattering on Tm compounds at PETRA III beamline P01. Hyperfine parameters and phonon densities of states of metallic Tm and Tm₂O₃ are studied.

A particle swarm optimization–based automated two-mirror alignment method was developed to restore high-flux beams in approximately 5 min, and its 15-month deployment demonstrated its robustness and reliability.

This study presents systematic measurements and rigorous coupled-wave analysis of relative and absolute diffraction efficiencies for sub-15 nm soft X-ray Fresnel zone plates. By decoupling intrinsic optical performance from practical beamline transmission losses, this work establishes a highly reliable metrology framework to support the development of next-generation high-resolution synchrotron optics.

We present the results of testing 92 prototypes of a capacitor-based burn-through monitor at the LCLS XCS and XPP endstations. We quantify the beam energy density thresholds required to induce a detectable high-voltage electrical short prior to complete burn-through and demonstrate the reliability of this scalable, low-cost solution for machine and personnel protection at high-power light sources.

A shaped electrode design for lithium niobate adaptive X-ray mirrors connects actuator degrees of freedom to specific polynomial orders, enabling general shape control and the correction of defocus, coma and fourth-order aberrations with a limited number of inputs.

The XSS beamline at PAL-XFEL provides a femtosecond time-resolved Bragg coherent X-ray diffraction imaging setup, optimized for tracking transient lattice dynamics and nanoscale strain fields within single crystals during dynamic processes.