Alcator C-MOD Weekly HIghlights
				May 26, 1994

Plasma operation is continuing. Significant progress on the Phase II physics
program is being made. 

Considerable progress has been made on tuning and conditioning of the D-port
ICRF dipole antenna. Tuning with plasma has been completed, and up to 600 kW
has been coupled to the plasma, after less than one full day of conditioning.
Modest electron heating has been observed at this power level. 

The visible bremmstrahlung array is now operational and taking data. This
diagnostic provides spatial profiles of Zeff, supplementing the single channel
Z-meter used last year.

Locked modes have been observed as a precursor to some disruptions. The new
B-poloidal loops located on the RF protection limiters identified a mode which
slowed and locked about 30 msec before the disruption. 

Instrumentation has been improved on the divertor shunts and halo current
rogowskis to provide better signal to noise on these important disruption
diagnostics. 

The reflectometer is being brought into operation. This diagnostic now
comprises four frequency channels, and is used for analyzing fluctuations, as
well as for measurements of edge density profiles. 

We continue to experience some failures on magnetics signals, due to the
connector unreliability described earlier, but so far have been able to use
redundant signals for all critical functions.

Miklos Porkolab is attending the TPX Council Meeting at PPPL this week.