Spectroscopic measurements of impurity temperatures and parallel ion flowsin the DIII-D divertor

dImpurity ion temperatures and parallel flow velocities in the DIII-D diver tor have been measured from the shapes and shifts of visible spectral lines of C II, C III, and B II. Spectral multiplet patterns are analyzed by fitt ing them to theoretical profiles that incorporate exact calculations for th e Zeeman/Paschen-Back effect.. Both normal flows toward the target plate an d reversed hows away from the target plate are observed in the outer divert or leg; only flows toward the plate are detected in the inner leg. (C) 1999 Elsevier science B.V. All rights reserved.