Aggregator

Log Number: 4550007Logbook(s): 

• POLOG
• ELOG

Entry Makers: mamunBody: 

Today we did following activities:
- HV vacuum conditioning confirmation
- Removed the HV conditioning resistor tank and connected R30-6 gun sdirectly to the HVPS
- After conditioning resistor tank removal, demonostrated field emission free HV soaking at 210 kV
- Repeated ramp up-soak-ramp down cycle by taking gun to 200 kV with different ramp rates of 10, 20, 30, 40, and 50 kV/min and demonstrated field emission free operation.

Plan for tomorrow:
- Remove the conditioning puck from the gun and insert a GaAs puck in the Gun
- Soak the gun at 200 kV for ~ a shift.

Log Number: 4550006Logbook(s): 

• POLOG
• ELOG

Entry Makers: bschaumlBody: 

We ramped the voltage from 0 to 200 kV and back several times at increasing ramp rates to ensure the system can handle the nominal settings. There are occasional vacuum blips when the supply hits zero, but everything is otherwise behaving well. That's all for tonight.

Log Number: 4550005Logbook(s): 

• ELOG
• POLOG

Tags: 

• Autolog

Body: 

Log Number: 4550004Logbook(s): 

• ELOG
• SLOG

Tags: 

• MCC8am
• Software and Controls

Body: 

Single mode fibers run and patched in for the South Linac segment (iocch2 and iocch2a). Moved the last segment (SL, iocch2 and iocch2a) from old router to new router. We are completely migrated to the new chl router. Going to start removing the old router from the control room rack. Latosky Cumbia
Assisted TroubleShooting Chopping Aperture Controls and Insertable Controls in the Injector

Log Number: 4550003Logbook(s): 

• POLOG
• ELOG

Entry Makers: mamunBody: 

Gun soaked for 2 hrs at 200 and 210 kV. Ramping down for different ramp up rate excercise.
Throughout the soak all the DecRAD counts were in background noise level. No vacuum activity observed. HVPS current was stable and in background level. We will excercise different ramp up rate up to 50 kV/min next. Tomorrow, we would like to swap the conditioning puck with a GaAs puck and soak the gun at 200 kV for ~ a shift.

Log Number: 4550002Logbook(s): 

• ELOG

Tags: 

• Autolog
• MCC8am

Body:  */ ATLis Comments Posted 18:00 Monday October 12 through 18:00 Tuesday October 13 AES DC Power Systems SAM 2026 Box Supply Work Preventative Maintenance/interlock checks

2026-10-13 16:10 - Kevin O'Bri

Log Number: 4550001Logbook(s): 

• POLOG
• ELOG

Entry Makers: brukerBody: 

Figure 1: cable connector removed from resistor tank (gun side) after cleaning
Figure 2: receptacle of resistor tank (gun side) after cleaning
Figure 3: gun insulator before cleaning
Figure 4: gun insulator after cleaning
Figure 5: finished cable connection from gun to HVPS

Found no evidence of any bad cable connections or contamination. The leakage current observed before remains unexplained (so far).

Log Number: 4550000Logbook(s): 

• POLOG
• ELOG

Entry Makers: shukuikachwalaBody: 

We were able to finish the remaining A Laser HCO items (beam DOCP measurement and attenuator calibration) before tunnel sweep. I will complete and post the report in the morning.

Log Number: 4549999Logbook(s): 

• ELOG

Body: 

1L09- Completed RF calibrations.
The 70 L/s turbo pump on the plasma pump cart stopped working properly, so it was turned off. It will be replaced tomorrow.
The valve on VIP1L10A ion pump is closed. The valve on VIP1L09B ion pump is open and cryomodule is being pumped by a 300 L/s turbo pump and two scroll pumps on the plasma pump cart. The vacuum manifold pressure was 5.5e(-6) Torr and going down.

Log Number: 4549998Logbook(s): 

• POLOG
• ELOG

Entry Makers: mamunBody: 

HV conditioning resistor tank is removed and R30-6 gun connected directly to the HVPS. Inspected all the cables and receptacles, everything looks good.

Log Number: 4549997Logbook(s): 

• ELOG
• POLOG

Body: 

HV conditioning resistor tank is removed and R30-4 gun connected directly to the HVPS. Inspected all teh cables and receptacles, everything looks good.

Log Number: 4549996Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Schaumloffel
DATE:             10/13/2026
SHIFT:               Swing

The operator has read the following:

Log Number: 4549995Logbook(s): 

• ELOG
• SLOG

Entry Makers: mmerzBody: 

The Power Calculator is used to determine the Power, Current, or Energy given the other two (and the Duty Factor). When using it for the Injector, one works in W & keV. I've found that when inputting a leading decimal point, it is ignored, which leads to an erroneous answer. (If one enters a leading 0 first, or adds a leading decimal point after entering a number, it works.)

Log Number: 4549994Logbook(s): 

• ELOG
• DCLOG

Body: 

Working under PTW-11618. Preventive maintenance for BSY2C. LAM1C, and LAM3C has been completed. PM's on BSY3C has started and will be finished tomorrow.

-Banks, O'Brien, Crespo

Log Number: 4549991Logbook(s): 

• CLOG
• ELOG

Body: 

Continued South LINAC CAMAC to PLC conversion

Log Number: 4549990Logbook(s): 

• CLOG
• ELOG

Entry Makers: creelBody: 

Cryo and SRF attempted to install CMTF C100 Utubes but ran into a small interference issue which SRF corrected and utubes moved to tomorrow morning.
Removed transferline LTubes at 1L06 and 1L07.
Performed CHL1 C5 annual maintenance.
Restored CHL2 main compressors C1-C6 cooling water flow to oil and gas coolers.

Log Number: 4549988Logbook(s): 

• HCLOG
• ELOG

Body: 

Tuesday Hall C TEC staff is working on "NUCAT" lead shielding support structure, 3D printing" MINI CAT " Quarts fixture, Manufacturing concrete anchor pieces for Hyper nuclear, also, modeling and printing filament extruder.
We do not expect any cross division support for Wednesday.

Log Number: 4549986Logbook(s): 

• HALOG
• ELOG

Entry Makers: jonesBody: 

• Completed LCW assembly for MOLLER PS and magnets
• Disassembled one Main Detector cable tray. Remove all Main Detector cable trays out of hall for welding work.
• Prepped for Upstream Girder Welding.
• Pulled 10 more Main Detector 100m cable bundles.
• Cleaned up hall for DOE tour

Log Number: 4549985Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 3.0.1 Target restore date was 2026-10-13 15:31:47 The output from the myRestore execution was as follows: iocsoftw3spce systemEnum@2026-10-13 15:31 2(2) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -i iocsoftw3spce (success) PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 PVs modified: 0 Procedure return status: Success

Log Number: 4549970Logbook(s): 

• ELOG

Body: 

1L07. Closed up & reestablished insulating vacuum in preparation for leak check tomorrow morning.