GTS meeting 11 10 15

• The configuration to be tested: Pure alumina (white) R30 insulator + Shed with full electrode assembly and GaAs wafer on puck # 4.
• Phil and Yan completed the vacuum bake to 250C for ~ 40 hour over the weekend. Gun chamber ion pump controller reads ~0.5 nA.
• John installed the R350kV(HVPS side)-R30(Gun side) cable. Procedure is being written by Carlos.
• The anode is connected to a pico-ammeter through an over-current protective circuit installed by John. The pico-ammeter is in the GTS control room.
• Rad monitors are connected, but some do not work.
• TV signal for monitoring turbo pump pressure is operational in GTS control room.
• Carlos, Bubba and Yan will start HV conditioning Wednesday Nov 11th after establishing maximum values for HVPS current trip limits based on experience with previous test of white R30 insulator + Shed with dummy ball that reached 375kV w/o breakdown, albeit with significant field emission.
• A pre-HV checklist is being developed now that the chamber is flanked by two gate valves, one with a 4-1/2" viewport, and the other one connecting the cathode preparation chamber. That is the way to say: " This is not a vacuum viewport breaking facility" .
• Presently, FGTSLOG is in the "retired" category, but we can still make entries, just a matter to find it in DTLite. T. Larrieu proposes to move it to the LERFLOGS under LGTSLOG.