Near-LTE linear response calculations with a collisional-radiative model for He-like Al ions. Revision 1

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We investigate non-equilibrium atomic kinetics using a collisional- radiative model modified to include line absorption. Steady-state emission is calculated for He-like aluminum immersed in a specified radiation field having fixed deviations from a Planck spectrum. The calculated net emission is presented as a NLTE response matrix. In agreement with a rigorous general rule of non-equilibrium thermodynamics, the linear response is symmetric. We compute the response matrix for 1% and {+-} 50% changes in the photon temperature and find linear response over a surprisingly large range.

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18 p.

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More, R. & Kato, T. April 6, 1998.

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Description

We investigate non-equilibrium atomic kinetics using a collisional- radiative model modified to include line absorption. Steady-state emission is calculated for He-like aluminum immersed in a specified radiation field having fixed deviations from a Planck spectrum. The calculated net emission is presented as a NLTE response matrix. In agreement with a rigorous general rule of non-equilibrium thermodynamics, the linear response is symmetric. We compute the response matrix for 1% and {+-} 50% changes in the photon temperature and find linear response over a surprisingly large range.

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18 p.

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OSTI as DE98057444

Other: FDE: PDF; PL:

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  • Kyoto University workshop on spectroscopy of nonequilibrium plasmas, Kyoto (Japan), 15-16 Dec 1997

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  • Other: DE98057444
  • Report No.: UCRL-JC--129333-Rev.1
  • Report No.: CONF-971228--
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 300436
  • Archival Resource Key: ark:/67531/metadc686417

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  • April 6, 1998

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  • July 25, 2015, 2:20 a.m.

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  • April 10, 2017, 2:23 p.m.

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More, R. & Kato, T. Near-LTE linear response calculations with a collisional-radiative model for He-like Al ions. Revision 1, article, April 6, 1998; California. (digital.library.unt.edu/ark:/67531/metadc686417/: accessed September 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.