The CRYRING@ESR electron cooler as internal target for atomic physics experiments
Abstract
Abstract We present developments at the electron cooler of the CRYRING@ESR storage ring aimed at improving its performance as internal target in low-energy electron–ion collision experiments. We describe recent modifications of the high-voltage and vacuum systems which lead to improved electron energy control and lower background count rates during such measurements. In a benchmark experiment on dielectronic recombination of F $$^\text {6+}$$ 6+ , we demonstrate that a spectroscopic resolution equivalent to transverse and longitudinal thermal electron energy spreads of $$\approx$$ ≈ 1 meV and $$\approx$$ ≈ 45 µeV, respectively, can be achieved under optimum conditions. This surpasses system performance observed previously in similar experiments.
Fields of Study & Subjects
Atomic and Molecular Physics
Particle Accelerators and Free-Electron Lasers
Particle accelerators and beam dynamics
Publication details
- Journal / source
- The European Physical Journal Special Topics
- Publisher
- Springer Science and Business Media LLC
- Volume
- 235
- Issue
- 15
- Pages
- 3577–3591
- Publication date
- 13 May 2026
- Language
- EN