Alcator C-MOD Weekly Highlights
				August 11, 1994

The maintenance/repair period is continuing. Fabrication drawings for a
full-scale prototype of the new design for the inner coax conductor have been
approved and released to the vendors.  Rough cut parts for the prototype coax
have already been produced. 

Cleanup and resurfacing of the terminal plate for the OH2L coil has been
completed. All three coils in the OH stack have been electrically tested
(rung) at 600 volts.

All 400 vessel heaters have been checked out and are working correctly. 

TRANSP is now being run in "production" mode. Analyses of about a dozen shots
from the 1993 and 1994 operating campaigns have been produced, with ten more
in progress.  So far the analysis is being carried out for ohmic discharges.
Analysis of ICRF heating shots, using the TRANSP ICRF package, will begin
shortly.

In the course of attempting to resolve a small discrepancy (at the level of a
few percent) in our magnetic analysis, we have determined that the vacuum
vessel exhibits a small magnetic permeability. Our control system and 
equilibrium analysis appear to be robust against this effect, as expected since 
these depend principally on measurements of the fields and fluxes in vacuum 
inside the vessel. The discrepancy shows up primarily when the vessel currents
inferred from the analysis are compared to those expected, or equivalently
when magnetics signals are compared with expected values based on integrating
the circuit equations using measured coil currents. 

Dr. Roger Richards from ORNL is back at MIT this week, continuing
installation work for his laser scattering experiment.