Alcator C-MOD Weekly Highlights Report
				January 6, 1994

Alcator C-MOD is now in the ninth week of our scheduled shutdown/maintenance
period between the Phase I and Phase IIA operating campaigns. Significant
progress has been made in several areas.

The alternator/flywheel was spun up to full speed. No balancing trim was
required. The alternator and flywheel are now fully operational; this
completes Milestone #38 (Installation of Flywheel).

Work on the west side of the bus tunnel is nearing completion with the
addition of some new bracing to the EF bus.  The west side of the tunnel
should be sealed early next week.  The OH coaxes have been reassembled and
inspected.  Work on the aluminum bus work also continues.  The OH1 shunt has
been removed and the gap between the lower shunt plate and the bus increased.
This change will eliminate a low voltage, low current arc that sometimes
affected the shunt signal during the last run period. The EF3 bus has been
raised several inches to provide more clearance from the platform floor. 
Changes to the TF bus coaxial transition have been made to guarantee that the
torque specification is maintained over the 6 to 8 months between inspections.

The new  LN2 feedline fit-up is now complete, and welding of the flanges	
is underway.

Leak checks of the secondary seals have continued and indicated that removal
of C-port extension was required.  In addition, helium leak checks of the
primary seals have begun.  The insulating blankets for the inner seals are now
in house, and a test fit-up on H-port has been completed successfully.  New
boots for sealing the ports as they exit the cryostat have also been tested at
H-port.

Some modifications to the vessel heater system have begun.  The reference
junction for the thermocouples, which during the last run period simply ran at
ambient temperature, will now be temperature controlled.

The new tiles for EF1 modules arrived, were cleaned, and were immediately
sent out for vacuum baking. Re-assembly of the lower modules with the new
anti-torque pins and screw hold-down stakes has begun.  Machining of the new
current shunts for the outer divertor is underway.  A decision has been made
to remove the EF1-upper modules from the vessel so that new pins and stakes can
also be added to these tiles.  Though the damage to these tiles was minimal
during the last run, applying the hold-down redesign to these tiles 
allows for maximum flexibility in divertor operation during the next run period.