Aggregator
ATLis Comments Daily Digest
COMPLETED Core drlling for CEBAF Laser Room Cable Passthrough
MOLLER install 10/27/2026
ACG Report
Hall D Gateway Trouble-shooting Progress
RTEMS 6.2 Development for PC-104's
Cryogenics Update
Completed CHL2 LHe dewar burst disk/relief valve replacement.
Completed commissioning ESR1 warm compressors as backup's for ESR2 via new cross connect headers.
Continued finishing SL Zone 16 Labeling
Completed wiring SCN CC4 power, magnetic coils, and instrumentation connections.
Completed pumping SCN CC4 process lines in preparation for spin testing.
Started removal of unused equipment racks from CHL control room.
COMMENT ON BE-Dehumidifier 3 Repair BE-ACC-3
COMMENT ON Gun prep chamber rebuild
Preparation continues: Gathering equipment, plan to vent tomorrow morning after detailed pre-job brief.
Please minimize injector traffic through injector stairs (laser room and downstream: please use North access building) - we'll have signs up when the vacuum chamber is open.
Plan Details for tomorrow:
Ion pumps off, track adjacent pumps
Vent through pump cart with N2
break at long manipulator, remove end piece from old, install on new, check out, reinstall, verify sufficient retraction
Break at NF3 valve flange, replace, reinstall.
COMMENT ON 1I beamline leak test and NEG activation
Gathered NEG activation supplies and cords, arranged, check out and ready for NEG activation at next opportunity. Prep chamber vacuum work starts tomorrow, NEG activation will follow that. https://logbooks.jlab.org/entry/4551177
COMMENT ON Shunt System PM for SAM 2026
APPROVED MO Outage in Preparation for Bldg 85 Panel PMs
COMMENT ON Extending Laser beam Passthrough of CEBAF Laser Room
APPROVED Add new outlet
Hall C daily summary
COMMENT ON Install 8 kW circulators in 1L09
COMMENT ON Upgrade 1L08 to a C75 zone.
RF group CPS wiring complete pending final system expert checks and approval. 480 V cabling and VVU installation still remain for the AES electricians. All 8 cavities have new circulators installed and klystrons reconnected, but still need LCW head modifications and leak checks by the RF engineer once they're done with 1L09. All 8 KRRP power meters are now hooked up to the KRRP chassis.
Hall B update for Tuesday 27 OCT
COMMENT ON NL23 thru NL26 HV Vacuum Cable Jumper Install
Routed spare HV cables and cleaned up the new HV jumpers at NL25.
Installed black HV adapter boxes to the cable tray at NL26 and finished the HV cable re-terminations.
(VIP1L261 thru VIP1L268 and VCG1L26)
All readbacks look good and stable. Tested VCG1L26 HV cable with HV load box.
Routed HV cables and cleaned up the new HV jumpers at NL26.
Will close ATLis/epas at the end of the week to allow time to monitor readbacks and ensure no further issues arise.










