Abstract
Instabilities in the SOL plasma can strongly influence the SOL plasma behaviour and in particular the SOL width. The SOL stability analysis shows that there exists a critical ratio of the thermal energy and the magnetic energy. If the SOL beta is greater than this critical value, the magnetic field cannot prevent the plasma displacement and a strong MHD instability in the SOL occurs. In the opposite case only slower resistive instabilities can develop. A theoretical investigation of the SOL plasma stability is presented for JET single-null and double-null divertor configurations. The dependence of the stability threshold on the SOL beta and on the sheath resistance is established. Applying a simple mixing length argument gives the scaling of the SOL width. 5 refs., 2 figs.
Kerner, W;
[1]
Pogutse, O
[2]
- Commission of the European Communities, Abingdon (United Kingdom). JET Joint Undertaking
- Kurchatov institute, Moscow (Russian Federation)
Citation Formats
Kerner, W, and Pogutse, O.
The SOL width and the MHD interchange instability in tokamaks.
France: N. p.,
1994.
Web.
Kerner, W, & Pogutse, O.
The SOL width and the MHD interchange instability in tokamaks.
France.
Kerner, W, and Pogutse, O.
1994.
"The SOL width and the MHD interchange instability in tokamaks."
France.
@misc{etde_456180,
title = {The SOL width and the MHD interchange instability in tokamaks}
author = {Kerner, W, and Pogutse, O}
abstractNote = {Instabilities in the SOL plasma can strongly influence the SOL plasma behaviour and in particular the SOL width. The SOL stability analysis shows that there exists a critical ratio of the thermal energy and the magnetic energy. If the SOL beta is greater than this critical value, the magnetic field cannot prevent the plasma displacement and a strong MHD instability in the SOL occurs. In the opposite case only slower resistive instabilities can develop. A theoretical investigation of the SOL plasma stability is presented for JET single-null and double-null divertor configurations. The dependence of the stability threshold on the SOL beta and on the sheath resistance is established. Applying a simple mixing length argument gives the scaling of the SOL width. 5 refs., 2 figs.}
place = {France}
year = {1994}
month = {Jul}
}
title = {The SOL width and the MHD interchange instability in tokamaks}
author = {Kerner, W, and Pogutse, O}
abstractNote = {Instabilities in the SOL plasma can strongly influence the SOL plasma behaviour and in particular the SOL width. The SOL stability analysis shows that there exists a critical ratio of the thermal energy and the magnetic energy. If the SOL beta is greater than this critical value, the magnetic field cannot prevent the plasma displacement and a strong MHD instability in the SOL occurs. In the opposite case only slower resistive instabilities can develop. A theoretical investigation of the SOL plasma stability is presented for JET single-null and double-null divertor configurations. The dependence of the stability threshold on the SOL beta and on the sheath resistance is established. Applying a simple mixing length argument gives the scaling of the SOL width. 5 refs., 2 figs.}
place = {France}
year = {1994}
month = {Jul}
}