Radiation field effects on the spectroscopic properties of seeded plasmas.

Details Radiation field effects on the spectroscopic properties of seeded plasmas. Radiation field effects on the spectroscopic properties of seeded plasmas.

Jul 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993jqsrt..50...91a&link_type=abstract

Journal of Quantitative Spectroscopy and Radiative Transfer, vol. 50, issue 1, pp. 91-101

Physics

13

Scientific paper

The presence of an external radiation field can affect the level populations that occur in a high-temperature plasma. The level populations determine, in part, the emissivity of the medium. Hence, processes induced by the radiation field must be included in spectral simulations. In the present paper, the effect of black body radiation with temperatures of several hundred eV on mid-Z seeded plasmas, with electron temperature between 100 and 4000 eV, and electron densities between 1019 and 1022cm-3 is studied. Particular attention is focused on line ratios which are commonly used for diagnostics. It is shown that the radiation field can have significant impact on the spectroscopic properties of plasmas under these conditions. A possible electron temperature diagnostic using iron is suggested for moderate radiation temperatures.

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