Aggregator

Log Number: 4470393Logbook(s): 

• ELOG

Entry Makers: samariBody: 

We can reliably get 50 uA CW to the ILD with the low energy set up (V=0, no flip, H=10.5 degrees) after some optics tweaking in 0L. Once the ced workspace is back up we'll be able to do an 0R match.
I was able to calibrate orbit locks and get them going as well as the energy lock with some investigation. Transmission is >.95 for all lasers, and B (fig 2) and D's (fig 3) relative orbit looks good. The current pain point is BLM trips. ILM0L02 cannot be lowered from what I've tried, and I had to result to a very low orbit vertically in 0R to lower BLMs.

Log Number: 4470392Logbook(s): 

• ELOG

Entry Makers: anthonyBody: 

Cavities came up without much incident. Cavities 5 and 6 not so smooth as the others. I was able to achieve the ODVH for cavity 5, but long term stability at that gradient remains dubious. Cavity 6 I left at 11.0. It was quenching at 11.5. I kept lowering by 0.1 and was still quenching at 11.2 The cavity had been quiet at 11.0 so I just set it back to 11.0.
Spreadsheet has been updated.

Log Number: 4470383Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl632

Saved: samari 02-12-26 18:57:49 {A:5 B:3 C:1 E:345 A=CW B=BS C=BS D=BS 0R08=0.00 0R08 dump in.

Log Number: 4470382Logbook(s): 

• ELOG

Entry Makers: samariBody: 

I couldn't turn on the 0R energy lock without it railing energy upwards even after setting BNOMs. Went to the BEM screen and saw that it believed the momentum to be -2577 MeV. Reconfiguring BEM worked to correct the energy, but the lock would still rail. I dialled in a 3e-4 dp/p offset based on average value and the lock now works.

Log Number: 4470372Logbook(s): 

• ELOG

Body: 

Problem not yet resolved. Honeywell tech is consulting his technical support. The control program may need to be reloaded or the controller power cycled. Either action will require all critical equipment controlled to be switched to manual operation during the process. This includes the North LINAC and West ARC LCW Systems in addition to the North Access Cooling Tower pumps and fans. Technician should return either next Tuesday (2-17-26) or Wednesday (2-18-26).

Log Number: 4470366Logbook(s): 

• ELOG

Entry Makers: kazimiSamariBody: 

For low energy injector setup, the beam at viewers after full cryomodule (0L08 and 0L10 and chicane) did not look correct. Harp scan were also not normal (see pervious logs). We have asked D. Turner to repair the setup_345 CED workspace. Meanwhile, by imperically changing the quads at 0L04 and 0L05, we can get a beam that can transfer to the end of the chicane with acceptable beam spots. CW beam up to 45uA was sent to ILD. We suspect the problem is the very low energy beam and the lack of Rf focusing in the second full module.

Log Number: 4470363Logbook(s): 

• ELOG

Entry Makers: samariBody: 

The first viewer walk is as found on design with the 0L match previously applied. I first changed the MQJ0L04 matching quad from 51.2 to 0 Gauss to minimize the spot at 0L08 (second viewer walk), Then adjusted the MQJ0L05 LEMi quad from -27 to -127 to round the spot at 0R05 (third viewer walk). This was completely empirical based on viewers with the input of Injector and CASA SMEs.

Log Number: 4470362Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 3.0.1 Target restore date was 2026-02-12 18:02:09 The output from the myRestore execution was as follows: iocsoftrffeonset systemEnum@2026-02-12 18:02 2(2) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -i iocsoftrffeonset (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: 4470360Logbook(s): 

• ELOG

Tags: 

• Autolog
• MCC8am

Body:  */ ATLis Comments Posted 18:00 Wednesday February 11 through 18:00 Thursday February 12 AES I&C Systems Legacy SRF Vacuum Control Crate General Maintenance (2026-2027)

2026-02-12 11:02 - Mathew Almodov

Log Number: 4470359Logbook(s): 

• MOLLER
• ELOG

Tags: 

• Moller
• PD

Entry Makers: jonesgaskelldwinesdougberdnikciprianBody: 

Continued with removal, of signal cables along blue utility platform. Hall A techs prepared documentation, for up coming tasks. Techs also removed items from hall to physics storage to gain floor space for upcoming work..

Log Number: 4470357Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System UN-Masking for: BeamLossMonitor
User: samari
Areas: Injector

BeamLossMonitor Devices:
ILM0I07
ILM0L01A
ILM0L01B
ILM0L02
ILM2D00A
ILM2D00B
ILM0L04A
ILM0L04B
ILM0L05
ILM0L06A
ILM0L08
ILM0R01
ILM4D00
ILM0R03
ILM0R04
ILM0R06
ILM0R08
ILM0R09

Log Number: 4470356Logbook(s): 

• ELOG
• RFLOG

Body: 

2L03-3 Klystron: Replaced Klystron with L3 Klystron serial # 100177 due to high KMAI. Techs: G. Kepler, E. Valentine and S. Holben

Log Number: 4470353Logbook(s): 

• ELOG
• RADLOG

Entry Makers: anthonyBody: 

Log Number: 4470345Logbook(s): 

• ELOG

Body: 

Found the 24vdc supplies that provide Door Interlocks on both NL24 and NL25 bad and need replaced tomorrow when I get a PTW. Will coordinate with PSS to temporarily remove their PSS lock so I can test before zone cert.

Log Number: 4470343Logbook(s): 

• ELOG

Entry Makers: radovicBody: 

Preparations for tomorrow's swapping of L-tube with PR u-tube on 2L24/26 and installation of purge rig on 2L25.

Log Number: 4470342Logbook(s): 

• ELOG
• RFLOG

Body: 

Filament power supply arrived and was setup and installed. The Spare FDU is now working on the bench.

Log Number: 4470340Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Anthony
DATE:             02/12/2026
SHIFT:               Swing

The operator has read the following:

• ELOG
• PD Shift Plan
• Radiation Surveys for PSS Segments in Controlled Access
• PSS Log

Log Number: 4470336Logbook(s): 

• ELOG
• SRFLOG

Body: 

2L03
- 2L04 girder NEG activated, gate valve opened
- Clean rooms removed

2L25
- 2nd C100 girder for 2L26 baked out
- C100 girders ready for setting in resting locations tomorrow

BSY
- 2C Line final leak check passed
- Ion pumps on, pumping down
- Turbo pump cart valved out, will be removed tomorrow

Log Number: 4470335Logbook(s): 

• ELOG

Body: 

Replaced ODH sensors in Hall B (OM02 and OM06) and Hall C (OM01). The sensors remain bypassed and will be monitored for 48 hrs prior to being returned to service

Log Number: 4470333Logbook(s): 

• ELOG
• LERFLOG

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

Date : 02-12-26
Time : 15:22:40
Day : Thursday
Shift : Swing

Crew Chief : Richardson
Program Deputy: Buttles
Team : X
Arm : RADCON
Designated SSO: Anthony
LERF Operator:
Operators : Anthony

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