Alcator C-Mod Weekly Highlights
               December 29, 2008

FY2009 weeks of research operations:
  Target: TBD
  Completed:  0 weeks


Operations
----------

Installation of the OH2U coax was completed last week, and it has
successfully passed both the contact pressure and resistance tests.
Installation of the OH2L and OH1 coaxes is proceeding this week.

Work also continued on the alternator inspection.  Ultrasonic, eddy
current, and visual inspections have been completed on the collector end
of the rotor, and processing of the data by our vendor has begun.  We
expect the inspection of the turbine end of the rotor to be completed
early in January.  A contract has been issued for obtaining a ring
sample of the rotor core.  A meeting with the vendor will take place
this week.


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

Work continued on the Transmitter Protection System (TPS)
upgrade. Calibration data is being taken on the TPS interface boards,
and this information will be provided to our vendor to be used in their
Phase II SBIR work.  We also continued testing new data
acquisition/protection boards for the Coupler Protection System (CPS)
upgrade.


ICRF Systems
------------

The FMIT#4 FPA bias supply regulator was removed from the transmitter to
investigate an instability in the bias current observed during the last
run campaign.  Several MOSFETs were replaced and changes to the resistor
values made.  The transmitter will be tested with these changes over the
next few days.


Diagnostics
-----------

We continued to develop upgraded electronics for divertor heat flux and
Langmuir probes, divertor thermocouples, and Compact Neutral Particle
Analyzers.  Prototyping of an FIR Polarimeter optical chord continued.
Layout drawings of the Polarimeter optics at K-Port are being developed
for review.

_______________________________________________
Cmod_weekly mailing list
Cmod_weekly@lists.psfc.mit.edu
http://lists.psfc.mit.edu/mailman/listinfo/cmod_weekly