TY - JOUR A1 - Vockert, Marco A1 - Weber, Günter A1 - Bräuning, Harald A1 - Surzhykov, Andrey A1 - Brandau, Carsten A1 - Fritzsche, Stephan A1 - Geyer, Simon A1 - Hagmann, Siegbert A1 - Heß, Sebastian A1 - Kozhuharov, Christophor A1 - Märtin, Renate A1 - Petridis, Nikolaos A1 - Heß, Regina A1 - Trotsenko, Sergiy A1 - Litvinov, Yuri A. A1 - Glorius, Jan A1 - Gumberidze, Alexandre A1 - Steck, Markus A1 - Litvinov, Sergey A. A1 - Gaßner, Tobias A1 - Hillenbrand, Pierre-Michel A1 - Lestinsky, Michael A1 - Nolden, Fritz A1 - Sanjari, Mohammad Shahab A1 - Popp, Ulrich A1 - Trageser, Christian A1 - Winters, Danyal Ferdinant Alexander A1 - Spillmann, Uwe A1 - Krings, Thomas A1 - Stöhlker, Thomas T1 - Radiative electron capture as a tunable source of highly linearly polarized x rays T2 - Physical review. A N2 - 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 U92+. 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. KW - Polarization KW - Radiation detectors KW - Accelerators & Beams KW - Atomic, Molecular & Optical Y1 - 2019 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/62877 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-628774 SN - 1094-1622 N1 - We acknowledge financial support by the German Federal Ministry of Education and Research (BMBF) under Grants No. 05P15SJFAA and No. 05P15RGFAA, as well as from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (Grant Agreement No. 682841 "ASTRUm"). VL - 99 IS - 5, art. 052702 SP - 1 EP - 6 PB - NY : Inst. CY - Woodbury ER -