Alcator C-Mod Weekly Highlights
			  November 15, 2004


FY 2005 weeks of research operation planned: 14 weeks, completed: 0 weeks.

We are currently up-to-air with the primary goal of installing the
lower hybrid launcher.  In addition, a large number of in-vessel
activities are ongoing in support of ICRF and diagnostic systems.
Maintenance and upgrades to diagnostic and power systems are also in
progress.


Physics
-------

A C-Mod quarterly review video conference was held last Wednesday,
11/10.  Earl Marmar discussed FY04 Program Execution Agreement (PEA)
tasks and the FY05 operations schedule.  Jim Irby discussed
engineering systems status and plans, and Ron Parker discussed the
status of the lower hybrid launcher and installation plans.  The
presentations can be found at

http://www.psfc.mit.edu/cmod/sciprogram/Q_rev11_04/01_doe_quarterly.pdf

Attending from MIT were Bob Granetz, Jim Irby, Earl Marmar, Ron
Parker, and Miklos Porkolab.  From OFES were Rostom Dagazian,
T.V. George, and Ken Hill.  From PPPL was Gerd Schilling, and from
UT-FRC were Ron Bravenec, Perry Phillips, and Bill Rowan.


Operations
----------

Preventative maintenance continued on the MIT alternator.  Wiring
continued in preparation for installation of the new AC unit in the
YAG Thomson scattering lab.


ICRF System
-----------

The fast-ferrite-tuner power supply was powered up for the first time
last week.  A control problem with the soft start circuit was
discovered and is being investigated.

All work has been completed on the the FMIT crowbar circuits, and they
have been reinstalled in the transmitters.


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

The PPPL #4 coupler was successfully copper plated and baked to 500 C
last week.  Windows were fit-up in the coupler on Friday and the
brazing operation was completed over the weekend.  Small leaks have
been found and a procedure for fixing them is being evaluated.  A
re-braze of the PPPL #3 coupler was completed on Saturday.  Voids have
been successfully filled and one of several leaks sealed.

A test fit-up of the lower hybrid limiter in-vessel has been completed,
and the template needed to install the mounting studs has been
modified and is ready to be used.  We have requested quotes from two
vendors on fabrication of the Langmuir probes for the launcher.

We continue to test and calibrate the vector modulators for the
klystron amplitude and control system.  Construction of the klystron
test stand also continued last week.  The filament transformer and power
supply box have been mounted.  Work on the CPS and Interlock board
CLPDs and PICs also proceeded.


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

Our vendor has finished the 5 kV cable installation.  Cables to the
LimitAmp have been connected and hi-potted to 10 kV for 30 seconds for
each conductor.  The breaker wiring has been installed to the cubicle
and will be connected after controls have been completed and tested.
The IOC breaker for over current protection has been
ordered. Installation of control wiring for the breaker and LimitAmp
continues.


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

Last Monday Gianpaolo Turri, Imperial College, U.K., visited C-Mod and
had discussions with C-Mod scientists. He presented a seminar on
"Magnetic Reconnections in MAST".

On Friday Naohiro Kasuya, National Institute of Fusion Science, Japan,
visited and had discussions with C-Mod scientists.

Amanda Hubbard attended the Pedestal ITPA group meeting in Lisbon,
Portugal where she gave three presentations on C-Mod results and
modeling.  Bruce Lipschultz and John Rice attended the Divertor and
Transport ITPA meetings.
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