Polarization Measurements of Radiative Electron Capture Transitions in Highly Charged Ions

Harald Bräuning (1) , S. Hess (1) , Sabrina Geyer (1) , Uwe Spillmann (1) , Christophor Kozhuharov (1) , T. Krings , A. Kumar (1) , Roland Martin (1) , D. Protic , Regina Reuschl (1) , Martino Trassinelli (1, 2) , Sergiy Trotsenko (1) , G. Weber (1) , Danyal Winters (1) , Thomas Stöhlker (1)

1 GSI - Helmholtz zentrum für Schwerionenforschung GmbH
2 INSP - Institut des Nanosciences de Paris

A dedicated Si(Li) Compton polarimeter combining energy and time resolution with a large detection area of 64x64 mm(2) and a two dimensional position resolution of 2 mm has been used for the first time to study the polarization of x-rays emitted via radiative electron capture (REC) into the K and L-shell of heavy highly charged ions. First data for the collision system 96.6 MeV/u U92+ -> H-2 are presented. The angular distribution of the Compton scattered photons inside the detector indicates that both K- and L-REC processes lead to the emission of strongly linearly polarized light.

Domaines: Physique Atomique [physics.atom-ph]

Harald Bräuning, S. Hess, Sabrina Geyer, Uwe Spillmann, Christophor Kozhuharov, et al.. Polarization Measurements of Radiative Electron Capture Transitions in Highly Charged Ions. 20th International Conference on Application of Accelerators in Research and Industry, Aug 2008, United States. ⟨hal-00437906⟩