####################### # PUBLIC RELEASE 1998 # ####################### JET_38287_com.dat ITER Profile Database: datasets prepared by Pam Stubberfield, April 1997 JET shot 38287 (2.5T, 2.5MA) is an ELMy H-mode shot with low gas fuelling obtained in the new JET pump divertor configuration. Plasma is deuterium. The plasma is in a single-null X-point configuration with the ion gradB drift pointing towards the X-point. About 6.0MW of 80KV/D and 6.0MW of 140KV/D neutral beam heating is turned on at 54 secs. Between 57 and 58 secs the 140KV/D power goes up to 8MW and the 80KV/D decreases to 4 MW. Then from 58 secs the heating is steadily decreased until it finally ceases at 59 secs. The dataset files in this subdirectory were prepared from TRANSP run O806 taking into account the up-down asymmetry of the plasma, run by Bernard Balet on 23 January 1997 on the IBM JAC-2 RS6000 workstation based on JET shot 38287 taken on 30 August 1996. All these files have been prepared according to the Standard list of Variables and File Format manual by D.Boucher (7 December 1995). Tools to produce these files from a TRANSP run were provided by Stan Kaye of PPPL. These have only been modified slightly to run on the RS6000 UNIX workstation and to add 40 secs to all time axes. There are 23 1-D Ufiles and 34 2-D Ufiles. All beam related quantities (energy, particle sources, currents etc) have been smoothed to suppress Monte-Carlo noise. In the file JET_38287_0d.dat data is given at 56.61 secs. At that time, there is 11.3MW of beam heating and the plasma is in a steady ELMy H-mode phase. Values for kappa and delta in the 0d, 1d and 2d files are from the TRANSP output derived from the boundary input definition provided by EFIT. kappa = (Zmax-Zmin)/(Rmax-Rmin): delta = (RGEO - R(Zmax))/a XPLIM is from XLOC ; SEPLIM is given by EFIT. PLTH is defined by WTH/TAUTH coming directly from TRANSP output and not as defined in the standard list of variables. The 1d files for IP,VSURF and IBOOT have negative values as normal for JET. Some comments on this particular TRANSP run O806: 25ms analysis time resolution: VMEC equilibrium LEVGEO = 6 Up-down asymmetric boundary definition obtained from the EFIT program No sawteeth events are taken into account in the simulation Ti profile from CX measurements is provided. Te profile vs. radius is from LIDAR measurements. Ne profile from LIDAR measurements 1D bulk radiation is used in the analysis. Rotation velocity profile from CX measurements is provided. Zeff profile and Zimp vs time are provided from CX measurements Edge ptcl confinement time is set to 1s. Bootstrap current on NLBOOT = T ; impose q(0) = 1.1 to start Neoclassical beam driven current The TRANSP run O806 gives a simulated W_dia 6.0% higher than the measured value and a simulated neutron yield 33% higher than the measured one at 56.61 secs. Publication: Matthews G,. et al EPS Berchtesgarten 1997