Oxygen impurity radiation from Tokamak-like plasmas

Details Oxygen impurity radiation from Tokamak-like plasmas Oxygen impurity radiation from Tokamak-like plasmas

Mar 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977jqsrt..17..343r&link_type=abstract

Journal of Quantitative Spectroscopy and Radiative Transfer, vol. 17, Mar. 1977, p. 343-349. NASA-ERDA-supported research.

Physics

Impurities, Oxygen Atoms, Plasma Radiation, Tokamak Devices, Deuterium Plasma, Emission Spectra, Energy Dissipation, Plasma Jets, Time Response

Scientific paper

We have constructed a nonhydrodynamic coronal model for calculating radiation from impurity atoms in a heated plasma. Some recent developments in the calculation of dielectronic recombination rate coefficients and collisional excitation rate coefficients are included. The model is applied to oxygen impurity radiation during the first few milliseconds of a TFR Tokamak plasma discharge, and good agreement with experimental results is obtained. Estimates of total line and continuum radiation from the oxygen impurity are given. It is shown that impurity radiation represents a considerable energy loss.

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