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The Wynnewood Gazette (Wynnewood, Okla.), Vol. 102, No. 32, Ed. 1 Thursday, November 4, 2004
Weekly newspaper from Wynnewood, Oklahoma that includes local, state, and national news along with advertising.
Date:
November 4, 2004
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
X-Ray Line Polarization of the K-shell Resonance Line Emission of Heliumlike and Lithiumlike Sulfur at Relativistic Electron Impact Energies
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 lithium-like 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.
Date:
March 4, 2004
Creator:
May, M; Smith, A; Faenov, A Y; Chen, H; Robbins, D; Dunn, J et al.
Object Type:
Article
System:
The UNT Digital Library