Impact of Stark Shifts on the Radiation Cooling of Cu-Dominated Plasmas

Authors

  • P. Corfdir ABB Switzerland Ltd
  • G. Lantz ABB Switzerland Ltd
  • M. Abplanalp ABB Switzerland Ltd
  • T. Delachaux ABB Switzerland Ltd
  • F. Kassubek ABB Switzerland Ltd
  • P. Sütterlin ABB Switzerland Ltd
  • M. Bator ABB Switzerland Ltd

DOI:

https://doi.org/10.14311/ppt.2019.1.31

Keywords:

Cu plasmas, Stark effect, radiation cooling, radiative transfer equation, spectroscopy

Abstract

We study the impact of Stark line shifts reported recently for Cu I transitions on the radiative cooling of Cu-dominated plasmas. The observed detuning in absorption between the hot core and cold shell of the arc leads to a reduction in radiation reabsorption compared to the case where Stark line shifts are neglected. Using a modeling based on a phenomenological treatment of the Stark line shift, we show that this reduction is below 2%.

References

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S. Franke, R. Methling, D. Uhrlandt, R. Bianchetti, R. Gati, and M. Schwinne. Temperature determination in copper-dominated free-burning arcs. Journal of Physics D: Applied Physics, 47(1):015202, 2013. doi:10.1088/0022-3727/47/1/015202.

P. Corfdir, G. Lantz, M. Abplanalp, T. Delachaux, F. Kassubek, P. Sütterlin, and M. Bator. Stark shift measurement as a temperature diagnostic of Cu-dominated thermal plasmas. Journal of Physics D: Applied Physics, in press, 2019. doi:10.1088/1361-6463/ab188e.

M. Abplanalp, K. Menzel, T. Delachaux, R.-P. Sütterlin, and F. Kassubek. Optical investigation of constricted vacuum arcs. In 27th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV), volume 1, pages 1–4, 2016. doi:10.1109/DEIV.2016.7748731.

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Published

2019-07-31

Issue

Vol. 6 No. 1 (2019)

Section

Articles

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