Re-labeled P2 panel breakers in the North Linac with the exception of 1L07 (being made with new breaker designations). No HV ready found on 1L13,14, and 15. AC cycled on 14 and 15 but found no 480VAC on 1L13 and had to reset main breaker ?!!
Upgraded computers to new NX Connect version but have problems with screens and resolutions. Also have problems with remote access the last week.
RF zone NL07 Oct 17 STATUS:
a. All 13 IOCs are running, and the screens look good.
b. There were a few minor problems, but it all turned out
well. Swapped cables, wrong mac address, and various epics
ioc setup small (typos, etc) mistakes.
c. 11 IOCs have the myRestore sets installed. 2 more to go
d. The 8 FCC iocs need the I-CAL files installed.
e. We should be ready to do initial tests on RF zone NL07
In preparation for an activation tomorrow, I heated puck#9 SLSP-5756-4 and soaked at 500-515 C for ~30 min to anneal ion damage, then let cool on stalk heater. Prep UHV rolled over ~300 nA while ramping upwards past ~400 C and soaked at <200 nA. Prep was <10 nA w/ puck at 125 C ~few hours later.
Tomorrow morning will heat photocathode to 350 C, degas cesiator, cool and activate once <40 C, put into gun HV chamber. Lasers and HVPS are ready. On Monday AM I plan to do a QE scan, pick a spot for injector group beam restoration + tests.
The 200 Mega-Ohm high voltage conditioning in Gun2 HVPS SF6 tank was replaced this morning with the aluminum short for nominal high voltage operations (see Figure 1).
While the HVPS SF6 tank was open to change the resistor, we replaced the 150 lbs flange rubber gasket as preventive maintenance (see Figure 2).
The tank was closed back up and pumped down to about 26 inHg, then backfilled to 0 psig with dry nitrogen before the final pump down to 30 inHg prior to filling to 60 psig of SF6.
Cycled power on DRAD "C" PC/104 chassis to get EDM
screen to resolve properly. Turned on HV and verified all 10 G-
M tubes are good (plot attched).
Turned off HV to conserve life of tubes.
Turn HV back on and check for proper response before
starting this task.