Alcator C-Mod Weekly Highlights
			November 23, 1998



Engineering:


The re-assembly of Alcator C-Mod continued last week with the installation
of the dome, assembly of the curved bus outside the cylinder, installation
of coax feed assemblies for the PF and OH magnets, and installations of
horizontal port extensions.  Successful hi-pot and ringing tests of the
TF magnet were completed after installation of the dome and tensioning of the
drawbars.  Assembly of the machine superstructure is now complete.  We
continue to make good progress on installation of the new heater system
and re-assembly of the cryo system.  We have also begun reassembly of the
TF coax.  This process requires a careful fitup followed by several days of
torque checks.

Now that many of the horizontal port extensions are installed, we can begin
installation of D, E, and J antennas, and diagnostic systems associated
directly with the ports.  We expect to complete installation of D and E
antennas, the outboard limiters, and divertor bypass flaps over the next
few days.  Two current straps for the new J port antenna are undergoing a
copper plating process to replate some locations that showed areas of
delamination after the first 400C bake.  Other antenna components
are currently being baked and will become available for installation soon.

We continued to bring the TF supply back online last week.  We are currently
working on the last of the convertor sections.  All convertor gates,
bypass cabinet gates, overvoltage protection circuits, and all front end
feedback circuits (IOC boards) have been checked and recalibrated.
We are also in the process of reworking the shunt wiring and IOC
board input connections to improve the reliability of these circuits.

Development of the DNB and its diagnostics for C-Mod continued.  The CXRS
optics were fully characterized and assembled.  Baking of the fiber optic
cable started.  Conditioning of the oil in the accelerator supply continued
with mods to improve the circulation.  The fast fault logic board, part of
the local control for the accelerator supply, was built and tested:  All
the control electronics for the Mod/Reg are now in progress.  The crowbar
control board is ready for construction, detailed design of the monitor
board logic board is complete, and work started on the controls for the
grid bias and the screen supplies.


Travel and Visits:

Les Gereg, Joe Frangipani, and Dave Cylinder have arrived from PPPL to
help with the  J-port antenna and MSE diagnostic installation.

Most Alcator C-Mod scientists and graduate students attended the APS meeting
in New Orleans last week.  Three invited talks, ten contributed talks, and 34
posters were given on Alcator C-Mod results by Alcator personnel and our
collaborators.  The abstracts for these presentations will be posted soon
on the WEB at

	http://www.psfc.mit.edu/aps98/abstracts/abstracts.html