Radiative electron capture as a tunable source of highly linearly polarized x-rays
Abstract
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 of the K-REC radiation was measured and compared with rigorous relativistic calculations as well as with the previous results recorded for U. Owing to the improved detector technology a significant gain in precision of the present polarization measurement is achieved compared to the previously published results. The obtained data confirms that for medium-Z ions such as Xe the REC process is a source of highly polarized x-rays which can easily be tuned with respect to the degree of linear polarization and the photon energy. We argue, in particular, that for relatively low energies the photons emitted under large angles are almost fully linear polarized.
Keywords
Cite
@article{arxiv.1902.08415,
title = {Radiative electron capture as a tunable source of highly linearly polarized x-rays},
author = {M. Vockert and G. Weber and H. Bräuning and A. Surzhykov and C. Brandau and S. Fritzsche and S. Geyer and S. Hagmann and S. Hess and C. Kozhuharov and R. Märtin and N. Petridis and R. Hess and S. Trotsenko and Yu. A. Litvinov and J. Glorius and A. Gumberidze and M. Steck and S. Litvinov and T. Gaßner and P. -M. Hillenbrand and M. Lestinsky and F. Nolden and M. S. Sanjari and U. Popp and C. Trageser and D. F. A. Winters and U. Spillmann and T. Krings and Th. Stöhlker},
journal= {arXiv preprint arXiv:1902.08415},
year = {2019}
}