Alcator C-Mod Weekly Highlights
		          June 8, 1998


Engineering:

	Work continues on the TF magnet repair.  All arm and core fingers
have been sealed and clean up of the finger surfaces has begun.
The new inductive heating unit is in house and being installed.
Fixturing for the inductive heating process has been designed and fabrication
has begun.  Procedures are being developed to insure an efficient
production cycle of fixture installation, inductive heating soldering
of feltmetal, cleanup, and inspection.  Tests of silver plating and
electroforming procedures will continue over the next few days.
	The bus work for the full scale TF finger joint test is in house, and
design of the fixtures to hold the joint and connect it to the bus is
underway.  The CAMAC and PLC hardware and software for this test is now
being debugged.  The small area feltmetal test has run its first sample for
approximately 20 thousand cycles.  Analysis of the sample has begun.
A complete testing program for the feltmetal has been outlined including
tests of feltmetal lifetime vs temperature, pressure, silver plating
thickness, and current density.
	Development of the DNB for C-Mod continues.  The crowbar control
electronics circuit board is fully designed.  The coax connections inside
the Mod/Reg cabinet have been made up and installed for the tube
current monitor, the crowbar current monitor, and the crowbar trigger.
The mechanical design for the crowbar enclosure is complete, and the front
panel and enclosure is being fabricated.  Continued progress was made on
wiring the arc/filament/snubber, MCL, and PLC interfaces.  A board was laid
out for the fast fiber links.  The CXRS in-vessel lenses were procured, and
the lens system was successfully bench tested.
	Work on FMIT#4 last week primarily involved the procurement of
the materials needed to repair the arc damage in the input cavity as discussed
last week.

Visits and Travel:

        Nobuaki Asakura visited from JAERI/JT-60U last week.  He spent
the time primarily discussing the similarities and differences between
C-Mod and JT-60U probe results.  His main contact person was Brian LaBombard,
but he spent time discussing other aspects of C-Mod and JT-60U operation with
Jim Terry, John Goetz, Bruce Lipschultz, Spencer Pitcher and Ian Hutchinson.
Dr. Asakura also gave a seminar covering results with the new JT-60U divertor.
        We had 2 short visits from Alberto Loarte (currently at NET) and
Raymond Monk (from JET) last week.  The 2-D B2-EIRENE modelling of C-Mod
by Loarte was discussed.  He is finding results that
seem to support a recent paper by Umansky regarding transport in the SOL.
The future direction of this modelling was also discussed.  Ray Monk
also participated in these discussions.