Title of article
Measurements of scrape-off layer ion-to-electron temperature ratio in Tore Supra ohmic plasmas
Author/Authors
Ko?an، نويسنده , , M. and Gunn، نويسنده , , J.P. and Pascal، نويسنده , , J.-Y. and Bonhomme، نويسنده , , G. and Devynck، نويسنده , , P. Cerda-Duran، نويسنده , , I. and Gauthier، نويسنده , , E. and Ghendrih، نويسنده , , P. and Marandet، نويسنده , , Y. and Pegourie، نويسنده , , B. and Vallet، نويسنده , , J.-C.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2009
Pages
4
From page
1074
To page
1077
Abstract
The scrape-off layer (SOL) ion (Ti) and electron (Te) temperatures were measured in ohmic plasmas of the Tore Supra tokamak for a wide range of main plasma parameters. Ti increases strongly with the intensity of the toroidal magnetic field Bt, whereas Te is nearly unaffected. The ion-to-electron temperature ratio τ = T i / T e ∝ B t 2.5 and is a weak function of plasma density and plasma current. Close to the last closed flux surface τ = 2 → 6 so that equipartition is never reached. The SOL ion temperature e-folding length is about 30% greater than the electron temperature e-folding length meaning that τ increases with radius in the SOL.
Journal title
Journal of Nuclear Materials
Serial Year
2009
Journal title
Journal of Nuclear Materials
Record number
1365507
Link To Document