Aggregator

Log Number: 4471189Logbook(s): 

• ELOG
• RFLOG

Entry Makers: bschaumlBody: 

The cryomodule itself was downgraded by RF in SRM on the 15th, but the cavities have the green thumb. Turning off until SRM is updated for the zone.

Log Number: 4471187Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: RF was turned on in:
R02
R03
R04

Log Number: 4471184Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 3.0.1 Target restore date was 2026-02-16 16:58:26 The output from the myRestore execution was as follows: iocse15 systemEnum@2026-02-16 16:58 2(2) restored seebpm@2026-02-16 16:58 323(323) restored Pause: 30 second(s) SEE_BURT 8(8) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -i iocse15 (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: 4471183Logbook(s): 

• POLOG
• ELOG

Body: 

After some diagnostic work, it was found the seed laser was indeed dead (something rarely happened), it's not a simple system trip off. There was no power coming out at all from the seed laser board. With the help from Steve, I replaced the seed laser board with a spare. Tuned up the seed and pre-amp to bring up the input power to the power-amp to about 2mW. Also adjusted the photodiode level for both seed and pre-amp to be consistent with other lasers. There was no issue turning on the A pow-amplifier afterwards. The system works fine now.

Log Number: 4471182Logbook(s): 

• ELOG
• SLOG

Tags: 

• MCC8am
• Software and Controls

Body: 

CED Updates for new Optics setup
Pockel and RTP Cell Driver Alarm updates
UITF Harp Chassis Troubleshooting

Log Number: 4471181Logbook(s): 

• ELOG

Body: 

LLRF Pre-Commissioning for Cavities:

We verified all interlock checks (ARC, window, vac, HE interlock faults) and all passed without issue.
We also put a small amount of forward power into each cavity in SEL mode. We found each cavity to be off machine reference. These are the results for each cavity:

cavity 1, 150k
cavity 2, 126k
cavity 3, 83k
cavity 4, 117k
cavity 5, 90k
cavity 6, 90k
cavity 7 ,120k
cavity 8, 98k

We did not attempt to tune the cavities. We will do this after coordinating with SRF (likely 2/17/26 afternoon).

Log Number: 4471180Logbook(s): 

• UITFLOG
• ELOG

Entry Makers: poelkerBody: 

The IOC for UITF harps is unresolved. Software suggests power cycling the chassis where this IOC lives. Or worst case, replacing it. THanks for your help

Log Number: 4471179Logbook(s): 

• ELOG

Body: 

20 Amp Trim System power supply address checks have been completed for all buildings except for the North and South Linacs. No issues have been found.

Banks, Delk

Log Number: 4471177Logbook(s): 

• ELOG

Body: 

TAG5C has been locked out, and work is being done to jumper out the polarity switch functionality. Testing of this will be done tomorrow.

-O'Brien, Banks

Log Number: 4471174Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Schaumloffel
DATE:             02/16/2026
SHIFT:               Swing

The operator has read the following:

Log Number: 4471162Logbook(s): 

• ELOG

Body: 

Late Entry: Pre-job brief completed and submitted.

Log Number: 4471160Logbook(s): 

• ELOG

Body: 

Made final repairs to 2L03, 2L12, 2L14, 2L17, 2L18, 2L22 and 2L26 to get PSS Cert. attempted. All but 2L12 (KMAI cav 8 dropping HV when bypassed, and 2L18 which didn't have any ready light but no interlocks faulted. 2L02, 2L04 and 2L25 are still locked by PSS group also, Completed PSS on 1L24 and 1L25 in the North Linac.

Log Number: 4471158Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: RF was turned on in:
R14
R18
R1E
R1F
R1G
R1H
R1I
R1J
R1K
R1L
R27
R29
R2F
R2G
R2J
R2L

Log Number: 4471157Logbook(s): 

• CLOG
• ELOG
• SRFLOG

Body: 

Cooldown for 2L25 is near completion. Shield Outlet Temp at 63K, setpoint for 45K. LL holding at 20%.

Log Number: 4471156Logbook(s): 

• ELOG

Body: 

Jumper requests JR#25-006 and JR#25-007, for zones 2L03 and 2L05, are closed.

Log Number: 4471155Logbook(s): 

• ELOG

Body: The following entry was removed from the Accelerator Bypassed-Interlocks Log (ABIL) Tag # 9210 Device: 2L03 CPS Function: RF PERMIT, OFF/SAFE, WAVE GUIDE PRESS. Location: 2L03 Purpose: Breaker changeout (MDP), Upgrade testing Removed By: <a href='mailto:kr

Log Number: 4471154Logbook(s): 

• ELOG

Body: The following entry was removed from the Accelerator Bypassed-Interlocks Log (ABIL) Tag # 9129 Device: 2L05 CPS for circulator Function: Bypass Permit, OFF/SAFE, Wave guide pressure Location: 2L05 Purpose: Functional test for 2L05 zone Removed By: <a href=

Log Number: 4471153Logbook(s): 

• ELOG
• SRFLOG

Body: 

BSY
- Pump cart removed from 2C Line
- BSY vacuum work is complete

2L03 - VIP2L03A debugging continues

Log Number: 4471152Logbook(s): 

• ELOG

Body: 

On Monday, 02/16/2026, SSG performed the following PSS Certification tests:
Functional - NL RF 1L24, 1L25
Functional - SL RF 2L03, 2L05, 2L08, 2L10, 2L14, 2L17, 2L22, 2L26

Log Number: 4471151Logbook(s): 

• ELOG

Body: 

16th February work:
- CA2L03 and warm regions 2B alignment

17th February work map:
- YBBS06 2A alignment