Aggregator
COMMENT ON Hall A Moeller Beamline Upgrade - Eng Responsibility
All girders have been taken down and about 50% of the stands removed. Girders are awaiting transport to the ESB for storage, stands still waiting on a location to be moved to. Bases will be broken out once Radcon performs initial smears to dictate any special restriction/controls while removing.
CREW CHIEF SIGN IN
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM
Date : 11-19-25
Time : 08:51:50
Day : Wednesday
Shift : Day
Crew Chief : Mock
Program Deputy: Wood
Team : E
Arm : N/A
Designated SSO: N/A
LERF Operator:
Operators :
This stamp certifies that the above Crew Chief has read/reviewed/received the following:
Program Deputy Summary, presented 2025-11-19
APPROVED UnitSub T3 Meter Installation
Survey and Alignment work summary
APPROVED Periodic Stand Checks - West Arc Dipole Stack 09-16
CANCELLED Hall C Meter Installation
COMMENT ON UnitSub T3 Meter Installation
COMPLETED Periodic Stand Checks - West Arc Dipole Stack 08
COMMENT ON Examine IBCAD00C cavity (SAM 2025-2026)
C75-05 Acceptance Testing
Spent 1st part of shift updating Labview for changes in data collection for Qo measurements.
Completed Qo vs. E for cavities 5 and 7
Cav 5: Low Field (7 MV/m) Qo = 8.4E9, Qo at 21 MV/m = 6.7E9
Cav 7: Low field Qo = 6.9E9, Qo at 19 MV/m =6.6E9
Decarad does not appear to be resolving
COMMENT ON Startup of Two Additional Central Chilled Water System Chillers and Associated Primary and Secondary Pumps and Final Commissioning
Isolation valves between the existing and new chillers were opened today. Evacuation of new chillers will be completed and charging with refrigerant will begin Wednesday morning. Control point to point checkout continues. Actual factory chiller startup should occur Friday,










