Aggregator
Survey and Alignment work summary
ATLis Comments Daily Digest
COMMENT ON Improve signal integrity of TMG photodiode scope
COMMENT ON Install 8 kW circulators in 2L05 and test into shorts
Placed jumpers back on for Klystrons 1 through 4 and attempted to turn high voltage. CPS breaker tripped before reaching full voltage. Removed jumper on Klystron #4 and turned HV on. This time succeeded with no trips. Still, no RF on Klystron #3. FCC drive OK. Will look at pre-amp and continue troubleshooting next opportunity.
Vacuum Group Summary 2025-11-05
AE Line
- Had a leak, reinstalled beam pipes
- Pumping overnight, turbo at full speed
- Assess in morning for leak check
2L02 and 2L04 prepped for warmup next week
1L21
- Waveguides reassembled, leak check successful
- Ins. vacuum re-established for 4K cool down
Cryo Daily Work Summary
COMPLETED Take OPSMDAQ0 offline and relocate OPSMDAQ1
COMMENT ON Vacuum Activities CEBAF 2/18/2025 through 2/18/26
2L02 & 2L04. Installed beamline pumps at VIP1L03A & VIP1L04B in preparation for 300k warmups next week.
1L21. Reestablished and leak checked VIP1L2120 waveguide assembly which kicked off during warm up. leak checked good. MDL 1e-10. Pressure currently @5e-8. Also reestablished insulating vacuum in preparation for 4k cool down & leak check.










