On Spectroscopic Diagnostics of Hot Optically Thin Plasmas

  • A. M. Urnov
  • F. Goryaev
  • S. Oparin
Part of the Springer Series on Atomic, Optical, and Plasma Physics book series (SSAOPP, volume 68)


X-ray and extreme ultraviolet (XUV) emission spectra of highly charged ions in hot plasmas contain diverse information on both elementary processes and the ambient medium. The theoretical analysis of spectra and spectral images of laboratory and astrophysical sources of short-wave radiation, based on the modern methods of atomic data calculations of spectral and collisional ion characteristics, allows one to determine various physical parameters of the emitting plasma. Here, we consider and discuss some basic principles on which the spectroscopic diagnostics of hot optically thin plasmas emitting XUV spectra is based. In order to obtain information about the internal structure of a physical system under study, one generally needs to solve inverse problems for determining the physical conditions in the plasma. Using concepts from the probability theory, we formulate the spectral inverse problem in the framework of the probabilistic approach to be used for the temperature diagnostics of hot plasma structures. We then demonstrate applications of our diagnostics methods to hot plasmas in laboratory (tokamak plasma) and astrophysical (solar corona) conditions.


Atomic Data Emission Flux Spectral Inverse Problem Tokamak Plasma Differential Emission Measure 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



We would like to thank our colleague Vladimir Slemzin for fruitfully collaborating on the subject of the present review. We also gratefully acknowledge the financial support from the European Commission Programme under the grant agreement 218816 (FP-7 SOTERIA project) and the Russian Foundation for Basic Research (project 11-02-01079-a)—Programme of the Presidium of the Russian Academy of Sciences “Plasma Processes in the Solar System.”


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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • A. M. Urnov
  • F. Goryaev
    • 1
  • S. Oparin
    • 2
  1. 1.P.N. Lebedev Physical InstituteMoscowRussia
  2. 2.P.N. Lebedev Physical InstituteMoscowRussia

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