Tokamak: D3D Contact person: M. Murakami / C.M. Greenfield Institution: ORNL/GA, GA Date of shot: March 25, 1999 Analysis code(s): TRANSP, EFIT, GAPROFILES Run number: 98775A06, EFIT04 Date of analysis: December 1, 2007 Assumption made for analysis: Zeff(r) based on Neon-10 and Carbon-6 CER measurements; Analysis carried out with multiple impurity transp model Kinetic efit based on transp; RC smoothing applied to profiles with 0.25 stime constant; Convection coefficients of 3/2 used ** Unless otherwise noted, quoted rotation is for carbon impurity ** Shot description, purpose of the experiment: Confinement improvement mechanism with impurity injection in particular, correlation with reductionof fluctuations and transport; Neon injection (2 tl/s) at 0.8s into L-mode edge; Confinement improved continuously to H_89P = 2 at 1.6 s confinement; To be compared with 98777 (no-neon reference shot) At t=1.200s, Zeff=2.64 and the average Z of impurities is Zimp=9.01 (may include impurities other than the principle impurity). Publication: M. Murakami et al., Nucl. Fusion 41, 317 (2001) G.R. Mckee et al., Phys. Plasmas 7, 1870 (2000)