MAST_08570_com.dat = comments file for ITER Profile Database submission

  Tokamak: MAST

  Pulse number: 08570

  Shot description:  ITB shot with co-NBI heating (D + H)
  
  Purpose of the shot; Study ITB formation and evolution with co-NBI heating

  Contact persons: Carol Brickley, Anthony Field

  Institution: UKAEA Fusion, CULHAM

  Date of shot: 08-Apr-2003

  Time of interest = 0.245s  (~ 5ms before H beam is cut-off at 0.25s, 
  Ruby TS at 0.25s).

  Analysis codes: TRANSP, EFIT for plasma boundary

  Run number: 08570C07

  Date of analysis: 09-Oct-2003 by Carol Brickley(carol.brickley@ukaea.org.uk)

  Assumptions:

  Ion temperature and toroidal rotation from single-time point CXRS 
  measurements at time of H-NBI cut-off

  Te and ne profiles from 200 Hz TS normalised to single-time 
  300-point Ruby TS profile

  Time resolved Ti generated by assuming fixed Ti/Te profile (taken at the 
  time of valid CXRS measurement) normalised at each time point 
  to the core Ti from NPA

  Time resolved rotation from in/out density profile assymmetry scaled 
  to match CXRS measurement at time of valid CXRS measurement.

  q-profile evolution from poloidal field diffusion with initial q-profile 
  from EFIT prior to 0.135s

  Additional:

  Pulse 08570 was conducted under the MAST M3b programme.

  Co-NBI ITB scenario with co-NBI heating from onset of 4MA/s current 
  ramp to 800kA flat top at 0.2s.

  Outboard gas puffing was used.

  The TRANSP run gives stored energy 4.5% lower than that of EFIT at 0.245s.
  The simulated neutron rate is in good agreement with anu-neutrons.

  The direction of the toroidal field and plasma current were in the
  normal MAST direction; clockwise and anticlockwise respectively as 
  viewed from above.

  There are 40 1-D Ufiles with 20 radial points taken at 0.245s just
  before the TS time at 0.25s; these are in mast_8570_2d.dat. There 
  are 28 0d ufiles with one data point taken at 0.245s; these are in 
  mast_8570_1d.dat. mast_8570_0d.dat contains the list of values at 0.245s, 
  as usual. 1d and 0d data has been smoothed over +/-0.005s.

  Most quantities have been smoothed to suppress statistical noise. A 
  pre-processor has been run on all raw data to make it TRANSP worthy.

  In all the files, TRANSP output is used unless unavailable. XPLIM, 
  SEPLIM, ZMAG, DELTA, DELTAU, DELTAL, DELTA95, DELTAU95, DELTAL95 and H89P
  are all derived from EFIT traces. Note, however, in mast_8570_0d.dat, 
  TRANSP BEPMHD and BEPDIA are quite different from EFIT BEPMHD and BEPDIA.

  In the file mast_08570_0d.dat data is given at 0.245s.
  XPLIM = -1.48 - EFIT's efm_xpoint1_z(c); 
  SEPLIM = 1.43 - maximum value of TRANSP's RMJMP for each time point.
  DELTA is the flux surface triangularity.
  PLTH is defined by WTH/TAUTH coming directly from TRANSP output
  and not as defined in the standard list of variables.
  In mast_8570_2d.dat, DELTARU and DELTARL are taken from EFIT traces,
  efm_triang_u(psi)_(c) and efm_triang_l(psi)_(c) which have been forced 
  to 0.0 at the axis and heavily smoothed over +/-0.05s. DELTAR is the 
  average value of these two. Similarly, in  mast_08570_0d.dat, DELTAU95 and
  DELTAL95 are derived from these traces. DELTA95 is the average value.

  Publication:

  "From the core to the Edge - Transport and confinement in the Mega Ampere 
   Spherical Tokomak Plasma", R.J.Akers et al, Proceedings of 
   EPS-03 and PPCF, 45(2003) A175-A204