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Linear polarization of photon emissions from reflected neutrals of atomic hydrogen at high-Z first wall surfaces

Authors
Journal
Journal of Nuclear Materials
0022-3115
Publisher
Elsevier
Publication Date
Volume
415
Issue
1
Identifiers
DOI: 10.1016/j.jnucmat.2010.12.239
Disciplines
  • Physics

Abstract

Abstract This paper presents theoretical results for linear polarization of 2p–1s and 3d–2p line emission following single electron capture by a proton to excited levels above a W surface. The polarization degrees are evaluated for photons from H outgoing along surface normal with translation velocities of 0.44–2.2×106m/s (corresponding to 1–25keV kinetic energy of H). Negative polarization degrees are obtained for electric-dipole photons emitted at 90° to the surface normal due to preferential population in large m levels of each sub-shell.

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