Alcator C-MOD Weekly Highlights
				Oct 16, 1995


Alcator C-MOD has completed a scheduled maintenance interval and is preparing
for the fall operating campaign. Checkout of auxiliary systems continues.

After pumpdown last week, several leak checks of the vessel were made.  Two
leaks were found and corrected.  Over the weekend, the LN2 sump was filled,
and the machine cooldown was begun.  A low temperature bake was also started
and is now being slowly raised in temperature as the proper operation of
control and monitoring systems is verified.

The new EF4 supply has been successfully tested into resistive and inductive
loads with both forward and reverse quadrants operating in normal run mode.
Low power tests into the machine of both new supplies (EF2 and EF4)
will begin this week.  The PARAGON interface programming to the PLC
control hardware for both supplies has been completed.

The core Thomson scattering system has been re-installed, aligned
and calibrated using Raman scattering in hydrogen. There are now
six spatial points available, and the initial spectrometer complement
is complete.

Absolute calibration of the Michelson interferometer was carried out.  New
tests of the frequency resolution of both ECE instruments and of the GPC input
filter response have also given useful information on diagnostic
performance.  The ECE temperature diagnostics are again ready for operation.

The data system has been exercised and checked out during engineering
and plasma shape control tests. Modifications to the plasma shape control
system have been made to permit adaptive control scenarios such as abort
rampdown sequences.

Bruce Lipschultz is at the ITER Divertor Experts Meeting in Garching and
will present several papers there.  Toyoaki Kimura and Kengo Miyachi visited
here from JAERI last week, and had discussions with C-MOD scientists
and engineers about power supply, alternator, and Hybrid control systems.