Abstract
Charge-exchange recombination spectroscopy, which is generally used to measure low-Z impurities in fusion devices, has been used for measuring Al+11 and Al+13 impurities in the Madison Symmetric Torus reversed field pinch. To obtain the impurity ion temperature, the experimental emission spectrum is fitted with a model which includes fine structure in the atomic transition. Densities of these two ionization states, calculated from charge-exchange emission brightness, are used in combination with a collisional radiative model to estimate the abundance of all other charge states of aluminum in the plasma and the contribution of aluminum to the effective ionic charge of the plasma.
| Original language | English |
|---|---|
| Pages (from-to) | 1-4 |
| Number of pages | 4 |
| Journal | Plasma Physics and Controlled Fusion |
| Volume | 54 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jan 2012 |
| Event | Symposium on Celebrating Professor Robert Dewars Accomplishments in Plasma Physics - Atlanta, United States Duration: 31 Oct 2009 → … |
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Keywords
- torus
- transport
- recombination spectroscopy
- ionization
- tokamak
- electrons
- reversed-field pinch
- high resolution
- charge-exchange
- spectroscopic measurements
- aluminium impurity
- ions
- high temperature
- plasma
Cite this
Kumar, S. T. A., Den Hartog, D. J., Chapman, B. E., O'Mullane, M., Nornberg, M., Craig, D., ... Reusch, J. (2012). High resolution charge-exchange spectroscopic measurements of aluminum impurity ions in a high temperature plasma. Plasma Physics and Controlled Fusion, 54(1), 1-4. https://doi.org/10.1088/0741-3335/54/1/012002