Abstract
High n-shell emission from hydrogen-like carbon (C VI, n=8-7) has been routinely observed from the plasma edge of JET. By comparing the measured spectral line intensities with the signals predicted by advanced atomic physics modelling of carbon and hydrogen radiation, integrated with modelling of the divertor and edge plasma, it is concluded that charge transfer from excited state hydrogen donors into fully stripped carbon ions can account for the observed spectral emission, but that the hydrogen distribution and to a lesser extent the carbon distribution away from the strike zone predicted by the transport model are too low. Data presented are those of three upper X-point discharges, where the target material was carbon. 5 refs., 1 fig., 3 tabs.
Maggi, C F;
Horton, L D;
Koenig, R;
Stamp, M;
[1]
Summers, H P
[2]
- Commission of the European Communities, Abingdon (United Kingdom). JET Joint Undertaking
- Strathclyde Univ., Glasgow (United Kingdom)
Citation Formats
Maggi, C F, Horton, L D, Koenig, R, Stamp, M, and Summers, H P.
Impurity line emission due to thermal charge exchange in JET edge plasmas.
France: N. p.,
1994.
Web.
Maggi, C F, Horton, L D, Koenig, R, Stamp, M, & Summers, H P.
Impurity line emission due to thermal charge exchange in JET edge plasmas.
France.
Maggi, C F, Horton, L D, Koenig, R, Stamp, M, and Summers, H P.
1994.
"Impurity line emission due to thermal charge exchange in JET edge plasmas."
France.
@misc{etde_456185,
title = {Impurity line emission due to thermal charge exchange in JET edge plasmas}
author = {Maggi, C F, Horton, L D, Koenig, R, Stamp, M, and Summers, H P}
abstractNote = {High n-shell emission from hydrogen-like carbon (C VI, n=8-7) has been routinely observed from the plasma edge of JET. By comparing the measured spectral line intensities with the signals predicted by advanced atomic physics modelling of carbon and hydrogen radiation, integrated with modelling of the divertor and edge plasma, it is concluded that charge transfer from excited state hydrogen donors into fully stripped carbon ions can account for the observed spectral emission, but that the hydrogen distribution and to a lesser extent the carbon distribution away from the strike zone predicted by the transport model are too low. Data presented are those of three upper X-point discharges, where the target material was carbon. 5 refs., 1 fig., 3 tabs.}
place = {France}
year = {1994}
month = {Jul}
}
title = {Impurity line emission due to thermal charge exchange in JET edge plasmas}
author = {Maggi, C F, Horton, L D, Koenig, R, Stamp, M, and Summers, H P}
abstractNote = {High n-shell emission from hydrogen-like carbon (C VI, n=8-7) has been routinely observed from the plasma edge of JET. By comparing the measured spectral line intensities with the signals predicted by advanced atomic physics modelling of carbon and hydrogen radiation, integrated with modelling of the divertor and edge plasma, it is concluded that charge transfer from excited state hydrogen donors into fully stripped carbon ions can account for the observed spectral emission, but that the hydrogen distribution and to a lesser extent the carbon distribution away from the strike zone predicted by the transport model are too low. Data presented are those of three upper X-point discharges, where the target material was carbon. 5 refs., 1 fig., 3 tabs.}
place = {France}
year = {1994}
month = {Jul}
}