From: VAXK::LAO
Date: 14-JUN-1993  09:59:11
Description: More on MSE                                             

More on fitting using MSE data.  The present MSE system contains
little information on the edge current density and quite often it
tends to give a negative current density near the edge for many
of the H and VH mode shots (shown as J1N on the plot on first page,
edge current normalized to I/area).
 
This sometimes can lead to discrepancy between the MHD separatrix
and that as expected from the Thomson measurements.
One remedy is to impose a constraint of J1N around 0.1-0.2
at PSIWANT=0.99.  There is a sample SNAP file
 
        EFIT_SNAP.DAT_MSE2_J1
 
in the EFIT: area on the Vaxs and /link/efit/ area on HPs.
Please use it with care.
 
Again, if accurate results are desired, full kinetic fits are strongly
recommended.
 
A number of rs_*.* files are also stored in the EFIT: area
on the Vaxs and /link/efit/ area on the HPs.  To use them, copy
the appropriate version of the files into your local area to reduce
the execution time when MSE data are used in the fits.  See the previous
BULL EFIT directory message for details.