Laboratory x-ray spectroscopy experiments in support of NASA`s x-ray satellite missions

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With support from NASA, we are performing a series of laboratory astrophysics investigations designed to address fundamental uncertainties in basic atomic physics processes relevant to the interpretation of discrete X-ray spectra of cosmic plasmas. Moderate resolution spectra acquired by the ASCA Observatory already demonstrate the inadequacy of currently available spectral modelling codes for this wavelength band. With the upcoming launches of AXAF, XMM, ASTRO E, and Spektrum Roentgen-Gamma, the demand for significant advances in this field will increase dramatically. Our program is based on the exploitation of the Electron Beam Ion Trap facility at the Lawrence Livermore National Laboratory, and ... continued below

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7 p.

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Kahn, S. M., Columbia University May 22, 1998.

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With support from NASA, we are performing a series of laboratory astrophysics investigations designed to address fundamental uncertainties in basic atomic physics processes relevant to the interpretation of discrete X-ray spectra of cosmic plasmas. Moderate resolution spectra acquired by the ASCA Observatory already demonstrate the inadequacy of currently available spectral modelling codes for this wavelength band. With the upcoming launches of AXAF, XMM, ASTRO E, and Spektrum Roentgen-Gamma, the demand for significant advances in this field will increase dramatically. Our program is based on the exploitation of the Electron Beam Ion Trap facility at the Lawrence Livermore National Laboratory, and a unique set of spectrometers and experimental techiques specifically developed for this purpose. Recent experiments have been devoted to definitive measurements of line emissivities for iron L-shell ions in optically thin, collisional plasmas.

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7 p.

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OSTI as DE98057863

Other: FDE: PDF; PL:

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  • NASA laboratory space science workshop, Cambridge, MA (United States), 1-3 Apr 1998

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  • Other: DE98057863
  • Report No.: UCRL-JC--130129
  • Report No.: CONF-980439--
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 301211
  • Archival Resource Key: ark:/67531/metadc689069

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  • May 22, 1998

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  • July 25, 2015, 2:20 a.m.

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  • April 6, 2017, 6:05 p.m.

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Kahn, S. M., Columbia University. Laboratory x-ray spectroscopy experiments in support of NASA`s x-ray satellite missions, article, May 22, 1998; California. (digital.library.unt.edu/ark:/67531/metadc689069/: accessed September 26, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.