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Article Dans Une Revue Physical Review E Année : 1994

PLASMA DIAGNOSTICS WITH SPECTRAL PROFILE CALCULATIONS

Résumé

A method is presented to interpret spectroscopic measurements to obtain a diagnostic of conditions in hot, dense plasmas using a fast computer code to calculate the theoretical profiles of the ionic spectra emitted. The method employed involves the computation of the spectral shape of the ionic transitions with the plasma electron temperature and density as parameters, a convolution of this theoretical profile with the instrument function, and a comparison of the resulting profile with the experimental spectrum. The computation is performed using an atomic physics data set coupled to a fast version of a line shape code that is capable of considering an extremely large number of sublevels for each transition. The plasma electron density and temperature are the only free parameters and the complex shape of the calculated line profile serves as a signature of the plasma conditions. Published spectral measurements of several ionic transitions of Li-like C and N in a hydrogen plasma are considered as an example. For certain of these transitions, the possibility of the observation of an ion dynamics effect on the ionic emitters is discussed.
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hal-01796357 , version 1 (19-05-2018)

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L Godbert, Annette Calisti, R Stamm, B Talin, R Lee, et al.. PLASMA DIAGNOSTICS WITH SPECTRAL PROFILE CALCULATIONS. Physical Review E , 1994, 49 (6, B), pp.5644-5651. ⟨10.1103/PhysRevE.49.5644⟩. ⟨hal-01796357⟩

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