JET_33131_com.dat = comments file for ITPA WDB Profile Database submission

  Tokamak: JET

  Pulse number: 33131

  Shot description,purpose of the shot: 
     ELMy H-mode with high gas fueling

  Contact persons: Robert Budny, Jef Ongena, Xavier Garbet

  Institution:  EFDA-JET

  Date of shot: 19941218

  Time of interest = 15.69s (55.69s in JET PPF time) for steady state

  Analysis codes: TRANSP and EFIT (for plasma boundary)

  Run number: 33131C28 at PPPL

  Date of analysis: 20080319 TRANSP run by Robert Budny (budny@princeton.edu)
  This is a resubmission correcting QICRHE and QICRHI

 Additional information:

  JET shot 33131 is an ELMy H-mode shot obtained in the new JET pump divertor
  configuration. This pulse ( 3.1T, 2.8MA ) is part of a series of rho* scaling
  experiments relevant for ITER. Plasma is deuterium.
  The plasma is in a single-null X-point configuration with the ion gradB
  drift pointing towards the X-point.
  Some 10.7MW of 80KV/D and 7.4MW of 140kV/D neutral beam heating is turned on 
  at 54.5 secs. 18.1MW of total NBI power is maintained up to 56 secs, then 
  7.4MW of 140kV/D is maintained for a further second.
  RF heating is turned on at 52 secs to reach some 5-6MW between 53 secs and
  the onset of NBI; during NBI, RF power is down to ~2MW.

  In the file JET_33131_0d.dat data is given at 15.69 secs.
  At that time, there is 18.1MW of beam heating and 2.3MW of RF. The plasma is 
  in a steady ELMy H-mode phase; however, the power level is only just above
  the threshold power for H-modes. 

  The direction of the toroidal field and plasma current were in the
  normal JET direction - clockwise viewed from above.

  In jet_33131_2d.dat the deuterium density is stored in NM1, trace H in NM2,
  and trace T in NM3. NM4 contains the carbon density being the majority 
  impurity species. 

  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 and SEPLIM from XLOC
  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 33131
  25ms analysis time resolution - VMEC equilibrium LEVGEO = 6  
  No sawteeth events are taken into account in the simulation 
  Up-down asymmetric boundary definition obtained from the EFIT program
  
  Ti, v_phi, and Z_eff profiles from CX measurements.
  Te and Ne profiles vs. radius is from LIDAR measurements.

  Edge recycling and gas puffing used for particle balance to compute
  particle fluxes.
 
  The TRANSP run 33131C21 gives a simulated W_dia 15% lower than
  the measured and a simulated neutron yield is 10% below the
  measured rate.

 Publications:
    1) For details of this plasma see
       B.Balet, D.Campbell, J.P.Christiansen, et al. 22nd EPS Bournemouth UK 1995
    2) For description of TRANSP analysis of JET ELMy H-mode plasmas see
       R.V.Budny, et al., "Local transport in Joint European edge-localized
       high-confinement mode plasmas with H, D, DT, and T isotopes",
       Phys. of Plasmas <7> (2000) 5038