Aggregator

Log Number: 4550564Logbook(s): 

• ELOG

Body: 

Started updating the labels for BLMs' HV and signal cables in the tunnel along the BSY segment.

Log Number: 4550558Logbook(s): 

• ELOG
• ACELOG
• CLOG
• SLOG
• SADLOG

Body: 

Updated Assessment and Planned System Shutdown:

During an investigation of a UPS issue in the MCC server room, the ACE team determined that all UPS units supporting the accelerator computing environment are connected to generator-backed house power.

This finding changes the original assessment that accelerator computing systems could remain operational while the emergency power and house power loops were serviced independently. Although systems can remain operational during emergency power servicing, they cannot be sustained through the planned house power outage on October 29.

Log Number: 4550554Logbook(s): 

• HALOG
• ELOG

Entry Makers: jonesBody: 

• Preparation for power test of Moller spectrometer TM0 magnet.
• Upstream beamline girder. Welded DS plate.
• Shoreline made progress with drip pan in the truck ramp. Need to install drain pipes.
• Mounted angle plates to beam right shielding.
• Target brought down the cryo transfer line. Install on Wed.
• Completed the assembly of vacuum valves and instrumentation.
• Prepared anchor for Pivot Platform shielding blocks. Drilled into blocks and prepped weld area.

Log Number: 4550548Logbook(s): 

• CLOG
• ELOG

Entry Makers: creelBody: 

1L06 and 1L07 primary cooldown utubes installed
CHL1 C4 compressor mechanical maintenance complete.
CHL2 secondary cooling water relief valve removed and sent for testing.
SL CAMAC to PLC conversion continues.
CHL Control room work continues.
ESR1 warm compressors prepared for restart as part of commissioning the new warm gas lines between ESR1 and ESR2.

Log Number: 4550535Logbook(s): 

• ELOG

Body: 

connectors have arrived and we are ready to install the TC wire. Contacted marcy and co and got a green light to do the job tomorrow.

Log Number: 4550534Logbook(s): 

• ELOG
• LERFLOG

Body: 
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM

Date : 10-20-26
Time : 15:27:56
Day : Tuesday
Shift : Swing

Crew Chief : Merz
Program Deputy: Mock
Team : X
LERF Operator:
Operators :

This stamp certifies that the above Crew Chief has read/reviewed/received the following:

Log Number: 4550522Logbook(s): 

• ELOG

Body: 

Today Hall C TEC staff worked on.
I.C.P. and appraisals.
Transferring holes and drilling holes in P.C.S transportation skids.
Assisting in HKS.Gas\system leak test
Modeling and printing MOLLER H.V . separation plates.
Printing,and assembling Filament extrusion project.
Quotes and purchase reqs.
No cross divisional work planned for 10/21/26.

Log Number: 4550514Logbook(s): 

• ELOG

Body: 

Need to remove this imager and relocate it to LERF Lab 2 (after RADCON release) to replace the motor and make some improvements. Like to target 10/22/26 for this work.

Log Number: 4550513Logbook(s): 

• ELOG

Body: 

Excellent progress made today. Both obsolete 70 MHz MO mod chassis are out.

Due to time/schedule constraints, I had to put things at parade rest. I plan to come back tomorrow and finish up the minor remaining work.

Log Number: 4550510Logbook(s): 

• ELOG

Body: 

Om232 enabled in LERF GTS. Returned to service.

Log Number: 4550509Logbook(s): 

• ELOG

Tags: 

• CED

Body: The following control system variables were updated because they were detected to differ from their CED property counter-parts.

Log Number: 4550508Logbook(s): 

• ELOG

Body: 

VIP1L10B neg pump activated.
1L26 - VBV1L26B vat valve replaced leak check = good.

Log Number: 4550507Logbook(s): 

• ELOG

Body: 

MSSG:

Completed all admin responsibilities, work docs/package and PJB for ZA strongback work.

Working on staging tools and working with RAD on Hepa vac staging at first area of work, 1st ZA in Transport/BSY region. The hands-on work will begin tomorrow.

Log Number: 4550504Logbook(s): 

• ELOG

Body: 

Jumpers have been installed for PSS signals: RF Permit, RF Off/Safe and RF Waveguide pressure for Sys A and B in 1L09.

Log Number: 4550503Logbook(s): 

• ELOG

Body: 

20th Oct. work:
- completed C75_06 cryomodule fiducialization

21st Oct work map:
- (test lab) Hall A MOLLER Upstream Girder Support inspection and fiducialization

Log Number: 4550502Logbook(s): 

• ELOG

Body: 

The following entry was placed in the Accelerator Bypassed-Interlocks Log (ABIL)

Log Number: 4550500Logbook(s): 

• HBLOG
• ELOG

Entry Makers: mcookivBody: 

vacuum PMs and rebuild ongoing
HYCAL chiller repair ongoing
PRAD II equipment de-installation
PRADII equipment move WCD
DC gas mods ongoing

Log Number: 4550487Logbook(s): 

• ELOG

Body: 

The RF group needs to reconnect the waveguides on 1L07.
For 1L09, SRF will disconnect the waveguide sections and tophats. Then, the RF group will need to reconnect the waveguides and check the probe cable connections.

Log Number: 4550478Logbook(s): 

• ELOG

Body: 

1L09 – The valves on ion pumps VIP1L09B and VIP1L10A were closed, and both ion pumps were turned on. Vacuum was recovered.
Disconnected the gas cart from the gas manifold. The pump cart remains connected to the valve at VIP1L09B; the SRF vacuum group will disconnect it.
Moved all equipment and staged at the NL stub.

Log Number: 4550477Logbook(s): 

• ELOG

Body: 

Installed PSS interface cable on the BSY1C power supply and removed PSS interface cable from the DOG9 power supply.