Aggregator

Log Number: 4461911Logbook(s): 

• ELOG

Body: 

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.

Log Number: 4461903Logbook(s): 

• ELOG
• LERFLOG

Body: 
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:

Log Number: 4461901Logbook(s): 

• ELOG

Tags: 

• MCC8am

Body:  PD SUMMARY Summary  

INJ: Completed rise-time measurement (5 us) of laser Intensity Attenuator (IA)

Log Number: 4461899Logbook(s): 

• ELOG

Body: 

Linked related HCList under related tasks. xC WC's approval captured there. Scheduled to occur Mo 11/24. PTW on-issue.

Log Number: 4461895Logbook(s): 

• ELOG

Body: 

18th November work:
- Hall A MOLLER SAM pipe inspection.
- West Arc stack 8 torque and magnets 2B alignment;

19th November work map:
- continue West Arc stack 9 torque and magnets 2B alignment;

Log Number: 4461894Logbook(s): 

• ELOG

Body: 

Once the PTW is on-issue this task is approved.

Log Number: 4461893Logbook(s): 

• ELOG

Body: 

Atlis is a duplicate - Removing.

See ATlis 118643

Log Number: 4461892Logbook(s): 

• ELOG

Body: 

Outage scheduled for 11/24. Actual shutdown time TBD with AccOps ~8AM

Log Number: 4461891Logbook(s): 

• ELOG

Body: 

Stands torqued and dipoles set to 2B tolerance

Log Number: 4461890Logbook(s): 

• ELOG
• HDTARGET
• HDLOG

Body: 

Tagger Dump is available & accessible to perform work.

Log Number: 4461889Logbook(s): 

• ELOG
• SRFLOG

Body: 

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

Log Number: 4461888Logbook(s): 

• ELOG

Body: 

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,

Log Number: 4461887Logbook(s): 

• POLOG
• ELOG

Body: 

Completed rise-time measurement (5 us) of laser Intensity Attenuator (IA)

Log Number: 4461886Logbook(s): 

• POLOG
• ELOG

Body: 

Task completed. Results are summarized in the attached presentation.

Log Number: 4461884Logbook(s): 

• ELOG

Tags: 

• Autolog
• MCC8am

Body:  */ ATLis Comments Posted 18:00 Monday November 17 through 18:00 Tuesday November 18 AES DC power Systems Upgrade Magnet Interlock Chassis in W2

2025-11-18 11:11 - Jason Delk

Ta

Log Number: 4461883Logbook(s): 

• ELOG

Body: 

Discussed with task owner and engineering. Not pursuing this task this SAM.

Log Number: 4461882Logbook(s): 

• ELOG

Body: 

Is the Hall D Tagger dump accessible at this time?

Presuming it is, and that you are not bringing your lunch with you, once the PTW is on-issue this task is approved.

(looping in Hall D WC and RadCon in case they see a conflict with this work)

Log Number: 4461881Logbook(s): 

• ELOG

Body: 

Maintenance:
- Bldg. 67 Instrument Air Eval and Repair
Projects:
- CUP Upgrade: Continuing construction. Factory startup is ongoing.

Log Number: 4461880Logbook(s): 

• ELOG

Body: 

Once the PTW is on-issue this task is approved. Added to SAM Cal for We 11/19. If aiming for a different time, please let me know via ATLis comment.

Log Number: 4461879Logbook(s): 

• ELOG

Body: 

Repairs to pressure regulator continues. Installed new input regulator and pressure relief valve to to more leak isolation upstairs. The parts I used where incorrect ones and Sam Holben is ordering correct valves and parts that we need for future repairs. We are still getting and very large leak in cavity 8 waveguide after doing leak checks upstairs and downstairs for two days. Yesterday L Farrish and I installed a blanker plate at the first elbow out of the penetration after not finding the leak with Snoop leak detector.