JET_19691_com.dat  ITER Profile Database;  datasets originally prepared 
   by Pam Stubberfield, Bernard Balet and Knud Thomsen JET, March 1995
   and re-issued July 1995. The 0d and com files were re-issued July 1996.

   JET shot 19691 is a standard L-mode shot obtained after the installation
   of the beryllium limiter. The plasma is deuterium with a 2% hydrogen minority. 
   The dataset files in this subdirectory were prepared from TRANSP run 4258, 
   assuming up-down symmetry, run by P.M.Stubberfield on 18 July 1995 on the 
   IBM JAC-2 RS6000 workstation based on JET shot 19691 taken on 6 June 1989. 

   All these files have been prepared according to the Standard list of
   Variables and File Format manual by D.Boucher (24 October 1994). Tools
   to produce these files from a TRANSP run were provided by Glen Bateman 
   Stan Kaye and Ben LeBlanc of PPPL. These have only been modified slightly
   to run on the RS6000 UNIX workstation, to add 40 secs to all time axes 
   and to include elongation and triangularity.
   There are 23 1-D Ufiles and 25 2-D Ufiles.  The raw data files for TEXP,
   TIXP etc and the error bar files TEEB, TEIB etc are missing but
   a q profile present. 

   15.7MW of 80KV/D neutral beam heating is turned on at 52 secs together 
   with 2.1MW of 140KV/D heating. 

   In the file JET_19691_0d.dat data is given at two times.
   At 51.50 secs there is no additional heating and the plasma is 
   in a steady ohmic mode . Shortly after this time full heating is 
   switched on and the plasma goes into L-Mode.
   At the second time of 54.50 secs the plasma is in a steady state 
   and at the top of a sawtooth. The 140KV/D beams have been switched
   off and the 80KV/D beam power down to 15.39MW.

   The plasma is in belt limiter configuration.
   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 FAST.
        kappa = (Zmax-Zmin)/(Rmax-Rmin);   delta = (RGEO - R(Zmax))/a

   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 4258;
   50ms analysis time resolution; VMEC equilibrium LEVGEO = 5  
   Boundary definition obtained from the FAST program
   Sawteeth events are not taken into account in the simulation.
   Ti  profile from CX ; Ptcl confinement time provided  
   Te profile from ECE vs. radius smoothed in time ; Ne from interferometer
   Background species mix 98%D,2%H; Constant fraction model used for particle diffusion
   2d radiation profile; Central rotation velocity vs time provided
   Zeff from CX;  impurity species assumed to be carbon
   Bootstrap current on NLBOOT = T ; impose q(0) = 1.1 to start
   Neoclassical beam driven current
 
   Publications:
   Balet B., Cordey,J.G.,Stubberfield,P.M.,Plasma Phys.Control.Fusion 34(1992)3