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Start Over Author "Rosato, J." Journal contributions to plasma physics
17 results on '"Rosato, J."'

4. Stark broadening of Balmer lines with low and moderate quantum number in dense divertor plasmas.

Author

Rosato, J., Kieu, N., Meireni, M., Sheeba, R., Koubiti, M., Marandet, Y., Stamm, R., Verhaegh, K., Duval, B., The TCV team, and The MST1 team

Subjects
*SPECTRAL line broadening, *QUANTUM numbers, *PLASMA astrophysics, *FUSION reactor divertors, *COMPUTER simulation
Abstract

A computer simulation technique is applied to the modelling of Balmer line shapes in dense divertor conditions. The spectral profile of lines with a high principal quantum number n is sensitive to Stark broadening and can be used as a density diagnostic. In contrast, an analysis of the shape of low or moderate n lines such as Dα (n = 3), Dβ (n = 4), and Dγ (n = 5) is more intricate because the Stark effect is weaker and can compete with thermal Doppler broadening. We examine this issue and address the relative contribution of the Stark and Doppler effects on the first Balmer lines. Analyses of experimental spectra are performed. [ABSTRACT FROM AUTHOR]

Published
2018
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