Measurement of the polarization of the K-shell resonance line emission of S13+ and S14+ at relativistic electron beam energies.

Journal Article · Tue Apr 06 04:00:00 EDT 2004 · Physical Review A - Atomic, Molecular, and Optical Physics

OSTI ID:15014064

Robbins, D; Faenov, A Y; Pikuz, T; Chen, H; Beiersdorfer, P; May, M; Dunn, J; Reed, K; Smith, A

We have measured the polarization of the heliumlike sulfur resonance line 1s2p {sup 1}P{sub 1} {yields} 1s{sup 2} {sup 1}S{sub 0}, and of the blend of the lithiumlike sulfur resonance lines 1s2s2p {sup 2}P{sub 3/2} {yields} 1s{sup 2}2s {sup 2}S{sub 1/2} and 1s2s2p {sup 2}P{sub 1/2} {yields} 1s{sup 2}2s {sup 2}S{sub 1/2} as a function of electron beam energy from near threshold to 144 keV. These lines were excited with the LLNL high-energy electron beam ion trap and measured using a newly modified two-crystal technique. Our results test polarization predictions in an energy regime where few empirical results have been reported. We also present calculations of the polarization using two different methods, and good agreement is obtained.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 15014064
• Report Number(s): UCRL-JRNL-203478
• Journal Information: Physical Review A - Atomic, Molecular, and Optical Physics, Journal Name: Physical Review A - Atomic, Molecular, and Optical Physics Vol. 70; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
74 ATOMIC AND MOLECULAR PHYSICS
ELECTRON BEAMS
K SHELL
LAWRENCE LIVERMORE NATIONAL LABORATORY
POLARIZATION
RESONANCE
SULFUR