37 citations · 183 across the 14 of their papers we have counts for
11 papers · 1 filter
Quantum Electrodynamics in Strong Electromagnetic Fields: Substate Resolved K Transition Energies in Helium-like Uranium
Philip Pfäfflein, Günter Weber, Steffen Allgeier +34
Using novel metallic magnetic calorimeter detectors at the CRYRING@ESR, we recorded X-ray spectra of stored and electron cooled helium-like uranium (U) with an unmatched sp…
A high-resolution asymmetric von Hamos spectrometer for low-energy X-ray spectroscopy at the CRYRING@ESR electron cooler
P. Jagodziński, D. Banaś, M. Pajek +12
We present research program and project for high-resolution wavelength-dispersive spectrometer dedicated to low-energy X-ray spectroscopy at the electron cooler of the CRYRING@ESR…
X-ray emission associated with radiative recombination for Pb ions at threshold energies
B. Zhu, A. Gumberidze, T. Over +28
For bare lead ions, decelerated to the low beam energy of 10 MeV/u, the x-ray emission associated with radiative recombination (RR) at "cold collision" conditions has been studied…
Electron-loss-to-continuum cusp in collisions of U with N and Xe
P. -M. Hillenbrand, K. N. Lyashchenko, S. Hagmann +24
We study the electron-loss-to-continuum (ELC) cusp experimentally and theoretically by comparing the ionization of U projectiles in collisions with N and Xe targets, at…
Electron capture of Xe in collisions with H molecules in the energy range between 5.5 MeV/u and 30.9 MeV/u
F. M. Kröger, G. Weber, M. O. Herdrich +63
The electron capture process was studied for Xe colliding with H molecules at the internal gas target of the ESR storage ring at GSI, Darmstadt. Cross section values fo…
Radiative electron capture as a tunable source of highly linearly polarized x-rays
M. Vockert, G. Weber, H. Bräuning +27
The radiative electron capture (REC) into the K shell of bare Xe ions colliding with a hydrogen gas target has been investigated. In this study, the degree of linear polarization o…
Wavelength-dispersive spectroscopy in the hard x-ray regime of a heavy highly-charged ion: The 1s Lamb shift in hydrogen-like gold
T. Gassner, M. Trassinelli, R. Heß +40
Accurate spectroscopy of highly charged high-Z ions in a storage ring is demonstrated to be feasible by the use of specially adapted crystal optics. The method has been applied for…
Comparative study of the electron- and positron-atom bremsstrahlung
V. A. Yerokhin, A. Surzhykov, R. Märtin +2
Fully relativistic treatment of the electron-atom and positron-atom bremsstrahlung is reported. The calculation is based on the partial-wave expansion of the Dirac scattering state…
PEBSI - A Monte Carlo simulator for bremsstrahlung arising from electrons colliding with thin solid-state targets
G. Weber, R. Märtin, A. Surzhykov +3
We present a Monte Carlo code dedicated to the simulation of bremsstrahlung arising in collisions of polarized electrons with thin target foils. The program consists of an electron…
Differential energy measurement between He- and Li-like uranium intra-shell transitions
Martino Trassinelli, A. Kumar, Heinrich Beyer +17
We present the first clear identification and highly accurate measurement of the intra-shell transition of He-like uranium performed via X-ray spect…
Observation of the 2p3/2 -> 2s1/2 intra-shell transition in He-like uranium
Martino Trassinelli, Ajay Kumar, Heinrich Beyer +17
We present the first observation of the 1s2p 3P2 ? 1s2s 3S1 transition in He-like uranium. The experiment was performed at the internal gas-jet target of the ESR storage ring at GS…