Alcator C-Mod Weekly Highlights
            February 6, 2006
                   

FY2006 weeks of research operations:

  Planned: 14 weeks
  Completed: 4 weeks


Operations
----------

Leak-checks on Monday and Tuesday of last week indicated that Alcator
C-Mod is leak-tight with very good vacuum conditions.  On Thursday
morning full data system cycle tests were run to test both the data
system and engineering instrumentation.  We also used this time to
puff helium gas from the diborane system into the vessel using the
Digital Plasma Control System.  This test indicated we will be able to
do intra-shot fueling with diborane at levels approaching our normal
deuterium fueling rates.

Torque checks of the magnet bus system have been made, and pre-ops
tests of the magnet power supplies have been completed.  C-Mod magnets
have been cooled down to operational temperatures.

The alternator was brought back into operation last week and is now
ready for plasma operations.


Lower Hybrid System
-------------------

Final checks on calibrations, water loads, 3rd harmonic detectors,
microwave switches, and the lower hybrid data system are being made in
preparation for low power operation into plasma.


Long Pulse DNB
--------------

The new load resistor fuse assembly for the high voltage power supply
has been designed, fabricated, and installed in the DNB electronics
rack. New cabling has been run to the fuse assembly, and the system is
ready for testing.


Travel and Visits
-----------------

Amanda Hubbard, Jim Terry, and Ron Parker attended the DIII-D PAC
meeting last week.  Ron Parker is the DIII-D PAC chairman.  Jim Terry
remained at GA after the PAC meeting for discussions on ELM stability
calculations with GA personnel.

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