JET_57987_com.dat = comments file for ITPA WDB Profile Database submission Tokamak: JET Pulse number: 57987 Shot description, purpose of the shot: ELMy H-mode plasmas at high triangularity and plasma current Contact persons: Robert Budny (budny@princeton.edu), Jef Ongena, Xavier Garbet Institution: EFDA-JET Date of shot: 20030129 Time of interest = 22.0s (62.0s in JET PPF time) for steady state Analysis codes: TRANSP, EFIT for plasma boundary TRANSP RunID 57987C06 done at PPPL, stored at JET and on mdsplus serve Date of analysis: 20080317 by Robert Budny TRANSP with new NCLAS 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. Radiation profile from inversion of bolometry measurements. Additional information: Pulse 57987 was conducted under the ELMy H-mode Physics Task Force (S1) to investigate ELMy H-mode plasmas at high triangularity and plasma current. The Greenwald fraction reached 1.05 at 22.0s The plasma current was 2.5 MA and the toroidal field was 2.75 T. The maximum values for the elongation was 1.75, and of the upper and lower triangularities were 0.48 and 0.36. The auxilliary heating consisted of 2.0 MW H-minority ICRH from 17.0 to 26.0s The spacial grid used for modeling the ICRH with the SPRUCE package was doubled from the default to 256 radial nodes and 128 poloidal nodes to improve the resolution of the off-axis resonance. The antenna phasing was -90,+90,-90,+90 degrees The TRANSP run gives a simulated W_dia about 15% lower than the measured value. The simulated neutron rate is 20% high. The direction of the toroidal field and plasma current were in the normal JET direction - clockwise viewed from above. The NBI voltages were 108 keV for 6 beams, and 80keV for 6 All calculations have been done on a 50 zone radial grid rather than the normal 20 grid. Most quantities have been smoothed to suppress statistical noise. In the jet_57987_2d.dat file D is stored in NM1 and trace T in NM3. In the file jet_57987_0d.dat data is given at 22.0 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. Publications: 1) For a description of TRANSP analysis of JET ELMy H-mode 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.