Aggregator
Cryo Daily Update
Follow-up Re: CEBAF Laser work
ATLis Comments Daily Digest
APPROVED Building 67 Pm Bridge Crane Disconnect
APPROVED Accelerator service building's HVAC mechanical PM's
Once the PTW is on-issue this task is approved.
Please work with other groups/workers in the affected areas, giving them right of way.
The NLSB (B01) is particularly busy these days.
You will also want to consult the SAM Calendar (https://ace.jlab.org/calendar/view-outlook) regarding where power outages will be on a given day. Tomorrow, SAB (B38). Next week, however, NLSB (B01) Tues, Wed, Thurs.
APPROVED B36 HVAC Bollard Installation
ACG Report
New version of command line cedtools (diff, elemcopy, and apply-relative-s) intalled in DEV and OPS
CHL Control Room Network Upgrade:
Installed multi mode fiber trunk from CHL control room down to data closet. Tested all fibers.(Cumbia, Latosky, Werlau)
Injector ServBldg Crane Guard Rails Must Remain in Place
This morning, CIS and ES&H reviewed fall protection for the ISB (B53) crane hatch. ES&H recommends improved harness and guard rail fall protection. Until this is implemented, only crane work with guard rails in place should be performed.
The crane pit guard rails in InjSB have been posted with the attached sign as a reminder.
COMMENT ON 20 Amp Trim System Preventative Maintenance 2026
COMMENT ON Trim Rack Blower Replacements in E1, E5, and W1 (SAM 2026)
COMMENT ON Disconnect Magnets on Girders 1L26, 1L27
COMMENT ON Electrical Outage - Installation of Switchgear Breaker
COMMENT ON PSS General maintenance tasks for SAM 2026
COMMENT ON CHL Control Room Network Infrastructure Relocation
COMMENT ON Replace gun HV electrode
mini bake of Tee prior to photocathode movement for storage ongoing, will complete overnight
Bake setup in progress. Bake anticipated to start ramping up tomorrow. https://logbooks.jlab.org/entry/4548610
Gun bake setup
Bake of small Tee at temperature, will ramp down overnight. Following this, we'll move the good photocathodes to the suitcase for storage during the bakeout.
Main gun bake setup well underway. We have upstream and downstream valves and NEG tube wrapped with heat tapes and insulation. We have thermocouples set up for recording, and internal NEG pump wiring in progress.
Plan for tomorrow: Unwrap mini-bake of tee, energize ion pump on tee and isolate from pump cart. Move pucks
Set heater bars in bake oven, organize thermocouple and power cables, start bake.










