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J. Cook, D. Helms, W. Skinner

Division (M7), FEL Coordination Group

F. Dylla

IR Demo Project Weekly Report, June 21-26, 1998

June 26, 1998

Management:

After last week's first light demonstration, we used this week for installation activities that allowed us to prepare for pushing to kilowatt power levels. We also made detailed plans for the kilowatt testing.

On Monday, June 22, the Jefferson Lab Industrial Advisory Board met to discuss the initial operation and use of the FEL. IAB members from Armco, Aerospace Corp., IBM, Lucent, NNS, CLI and Siemens attended the meeting.

Installation Activities

The highlights for this week for Installation activities are:

Eight beam line valves were replaced this week because of concerns about reliability. The 0G dump beam line was modified to eliminate scraping. The entire machine was placed under vacuum for the first time.

The DLPC was upgraded for operation at 37.4 MHz in beam mode 2 and 3. The DY magnets were opened to install a synchrotron radiation monitor and limit switches on the mechanism.

The gun cathode was heat cleaned, HV processed, recesiated, and HV tested this week.

Four additional DF magnets were installed and their cables connected. Two DGs and 4 DCs were placed, but not connected.

The viewer flag for ITV2F03A was changed from graphite to beryllium.

Additional grating was installed this week over the helium transfer lines. Approximately 75% of the helium transfer lines behind the machine are now covered with gratings.