High-resolution X-ray emission study for Xe54+ collisions on Xe

We report on an experiment conducted at the ESR storage ring aiming at the study of the X-ray emission of Xe54+ ions colliding with Xe atoms at a beam energy of 50 MeV/u. The radiation resulting from the ion-atom interaction was observed using a high-resolution spectrometer based on metallic-magnetic calorimeter technology. In order to benchmark the capabilities of these detectors for high-precision atomic physics experiments, we identified several transitions from H-like and He-like xenon and determined their energies. Furthermore, the 1s-Lamb shift in Xe53+ was estimated using the measured line energies. The results are compared with previous experimental studies and theoretical predictions.

Automated summary

We present the results of an experiment conducted at the ESR storage ring to investigate the X-ray emission of Xe54+ ions colliding with Xe atoms at a beam energy of 50 MeV/u. A high-resolution spectrometer based on metallic-magnetic calorimeter technology was used to observe the radiation resulting from the ion-atom interaction. Multiple transitions from H-like and He-like xenon were identified and their energies were determined to benchmark the capabilities of the detectors for high-precision atomic physics experiments. The measured line energies were also used to estimate the 1s-Lamb shift in Xe53+, and the results were compared with previous studies and theoretical predictions.