Bibliographic Citation | |
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Title | Electron Impact Excitation Cross Section Measurement for n=3 to n=2 Line Emission in Fe17+ to Fe23+ |
Creator/Author | Chen, H ; Beiersdorfer, P ; Brown, G V ; Scofield, J ; Gu, M F ; Kahn, S M ; Boyce, K ; Kelley, R ; Kilbourne, C ; Porter, F S |
Publication Date | 2006 Apr 20 |
OSTI Identifier | OSTI ID: 895717 |
Report Number(s) | UCRL-PROC-220791 |
DOE Contract Number | W-7405-ENG-48 |
Other Number(s) | TRN: US200711%%283 |
Resource Type | Conference |
Resource Relation | Conference: Presented at: NASA 2006 Laboratory Astrophysics Workshop, Las Vegas, NV, United States, Feb 14 - Feb 16, 2006 |
Research Org | Lawrence Livermore National Laboratory (LLNL), Livermore, CA |
Sponsoring Org | USDOE |
Subject | 74 ATOMIC AND MOLECULAR PHYSICS; ASTROPHYSICS; CROSS SECTIONS; ELECTRON BEAMS; ELECTRON CAPTURE; ELECTRONS; EXCITATION; IRON; L SHELL; NASA; SPACE FLIGHT; SPECTROMETERS |
Description/Abstract | We have measured the electron impact excitation cross sections for the strong iron L-shell 3 {yields} 2 lines of Fe XVIII to Fe XXIV at the EBIT-I electron beam ion trap using a crystal spectrometer and NASA-Goddard Space Flight Centers 6 x 6 pixel array microcalorimeter. The cross sections were determined by direct normalization to the well established cross section of radiative electron capture through a sophisticated model analysis which results in the excitation cross section for the strong Fe L-shell lines at multiple electron energies. This measurement is part of a laboratory X-ray astrophysics program utilizing the Livermore electron beam ion traps EBIT-I and EBIT-II. |
Country of Publication | United States |
Language | English |
Format | Medium: ED; Size: PDF-file: 6 pages; size: 0 Kbytes |
System Entry Date | 2008 Feb 14 |
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