JET_60933_com.dat = comments file for ITPA WDB Profile Database submission Tokamak: JET Pulse number: 60933 Shot description, purpose of the shot: Hybrid with low triangularity at 2.4T, Argon & Neon Contact persons: Robert Budny, Xavier Litaudon, Xavier Garbet Institution: EFDA-JET Date of shot: 20040210 Time of interest = 12.3s (52.3s in JET PPF time) for steady state Analysis codes: TRANSP, EFIT for plasma boundary TRANSP RunID 60933C11 done at PPPL, stored at JET and on mdsplus server Date of analysis: 20051118 by Robert Budny(budny@princeton.edu) Assumptions for analysis: Up/down asymmetric boundary given by EFIT. Ti, toroidal rotation, Z_eff profiles from CX measurements Te and ne profiles from LIDAR measurements. TRANSP computes the central q to droop below unity, but no sawtooth are evident so the q_profile estimated by EFIT was used as input Additional information: Pulse 60933 was conducted under the S2 Task Force to investigate the hybrid scenario The plasma current was 2.0 MA and the toroidal field was 2.4 T. The auxilliary heating consisted of D-NBI with power ramped up to 15.4MW from 6 to 15s and 2.0 MW H-minority ICRH from 6.0 to 17.0s There was approx 1.2MW of LHCD from 1.8 to 6.0s The antenna phasing was -90,+90,-90,+90 degrees The ICRH was modeled using New SPRUCE The LHCD was modeled using LSC The direction of the toroidal field and plasma current were in the normal JET direction - clockwise viewed from above. The NBI voltages were 105 keV for 8 beams, and 78keV for 5 Argon and neon was injected into the plasma for diagnostic purposes. The measured densities were inputed into TRANSP All calculations have been done on a 50 zone radial grid. Most quantities have been smoothed to suppress statistical noise. In the jet_60933_2d.dat file thermal D is stored in NM1, trace T is stored in NM2 and the lumped impurity density in NM3. In the file jet_60933_0d.dat data is given at 12.0 secs. XPLIM is from XLOC ; SEPLIM is given by EFIT. DELTA is the average of the upper and lower triangularities. and not as defined in the standard list of variables. The simulated neutron rate is low by 30% Publications: 1) For a description of this and similar plasmas see A.C.C.Sips, E.Joffrin, et al, "Improved H-mode Identity Experiments in JET and ASDEX Upgrade", 30th EPS, St. Petersburg (2003) ECA Vol. 27A, O-1.3A 2) For a description of TRANSP analysis of JET plasmas see R.V. Budny, et al, "Local transport in Joint European Tokamak edge-localized, high confinement mode plasmas with H, D, DT, and T isotopes", Physics of Plasmas <7> (2000) 5038-5050.