Aggregator

Log Number: 4490289Logbook(s): 

• ELOG

Entry Makers: bschaumlBody: 

Log Number: 4490288Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl01
Data from: /usr/opdata/burt/allsnap/04-19-26_23:30:22
Restored file: /tmp/04-21-26_16:37:20.snap


Restoring Nominal Machine Setup for Degrader Studies

Log Number: 4490287Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl01

Saved: bschauml 04-21-26 16:37:06 {A:i B:3 C:2 E:345 A=BS B=BS C=BS D=BS 0R08=0.00 0R08 dump in. Autosave prior to restore.

Log Number: 4490286Logbook(s): 

• ELOG

Body: 

Maintenance was performed on the Video Camera Computer, including the removal of old files from the C drive to re-direct store files to D drive.

Log Number: 4490285Logbook(s): 

• ELOG

Body: 

Scheduled to occur next two Owl shifts.

Log Number: 4490284Logbook(s): 

• ELOG

Body: 

Added to Wed 4/22 SAM Cal and Work Map. Thank you for the update.

Log Number: 4490283Logbook(s): 

• ELOG

Entry Makers: kernsBody: 

Cavity GASK was set above 2 V since I recovered this cavity the last time on 03/30/26. Taking RATN will drive more stable from the power out of the RFCM and went from 11.1db with GASK at 2.27v at a GMES of ~4.6Mv/m. If you look at when RATN was at 11.1db verses 5db, GASK went from 2.27v to 1.47v and GMES was more stable and GLDER went from 197 ppm to a low of 10 ppm meaning gradient is very steady.

Log Number: 4490281Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
2L20-5
Username: kerns
Date/Time: 04-21-26_16:25:21
RF Status: Good
Tuner Status: Good
Comment: Recovered RF and optimized with RATN lowered to 5db and GASK at 1.5.
Special Instructions:

Maintenance Tag: Component: Other

Log Number: 4490280Logbook(s): 

• ELOG

Body: 

Predicted PMT current study update. Two BLMs: ILM0R01 and ILM1L02 were replaced as a part of ongoing study. The first BLM is showing results within the expected range. Second one is showing improved performance, but further optimization is still needed. Monitoring and analysis are ongoing.

Log Number: 4490275Logbook(s): 

• ELOG

Body: 

DC Power Group needed assistance with MYBBS06 Wiring that was bound around upstream end of Magnet, required a Bleed-up and Disconnect of Beamline 2 3/4 CF @ IPM9SXX to un-bind Wiring, Work Completed and Re-Leak Check = Good; DC Power can connect their Wire Leads anytime now.

Log Number: 4490273Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Anthony
DATE:             04/21/2026
SHIFT:               Swing

The operator has read the following:

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

Log Number: 4490272Logbook(s): 

• ELOG

Body: 

Following the AESRF CPS SOP for safe out of 480 Vac a fault was detected. During lock out at the MDP of the 480 Vac to the CPS the Panduit AVT and the VVU detected a fault that indicated an unsafe condition. At the start of the safe out, all indications are normal on the AVT and VVU. After the breaker is opened at the MDP there is a fault indicated on the AVT, which is two flashes of the indicator. The VVU indicates a fault on the B and C phases. This issue needs to be addressed before Hi-pot testing of the Macro Magnetics transformer can be done. Techs: G. Kepler, A.

Log Number: 4490271Logbook(s): 

• ELOG

Entry Makers: kernsBody: 

Gradient/CRFP dropped to nothing as I OLT the cavity. Needs a driveline check to include power from the RFCM, cable checks and 2.5w amp to see what going on !

Log Number: 4490268Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
2L13-8
Username: kerns
Date/Time: 04-21-26_15:40:51
RF Status: Bad
Tuner Status: Good
Comment: CRFP dropped to nothing during OLT. Needs driveline checks/2.5w amp and RF out of RFCM.
Special Instructions:

Maintenance Tag: Component: Other

Log Number: 4490267Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
2L13-5
Username: kerns
Date/Time: 04-21-26_15:40:51
RF Status: Bad
Tuner Status: Good
Comment: CRFP dropped to nothing during OLT. Needs driveline checks/2.5w amp and RF out of RFCM.
Special Instructions:

Maintenance Tag: Component: Other

Log Number: 4490266Logbook(s): 

• SRFLOG
• ELOG
• RFLOG

Entry Makers: michaelmBody: 

See attached. Could potentially connect network analyzer upstairs and verify one gets no frequency response from tuner motion

Log Number: 4490265Logbook(s): 

• ELOG

Entry Makers: kernsBody: 

Tried to OLT when we got to Power Permit and found tuners not tuning with gradient at ~.72 Mv/m with CRFP at 590w . Stepping it 50k in either direction and don't see the tuners moving. This could be a tuner motor stepper camac card or bad/broken tuner motor or torque adapter on tuner on the cryo-module cavity downstairs. Requires further troubleshooting with access for troubleshooting downstairs while tuning from screens or SRF motor stepper test box.

Log Number: 4490264Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
2L13-8
Username: kerns
Date/Time: 04-21-26_15:33:12
RF Status: Good
Tuner Status: Bad
Comment: Tuner motor not stepping. Needs to be checked by SRF next access.
Special Instructions:

Maintenance Tag: Component: Operator Entry - See SME

Log Number: 4490263Logbook(s): 

• ELOG

Body: 

Reconnected waveguide at 2L02. PSS locks moved from waveguide plates downstairs to CPS breaker in the service building.

Log Number: 4490262Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 3.0.1 Target restore date was 2026-04-21 15:22:55 The output from the myRestore execution was as follows: iocsoftw4spce systemEnum@2026-04-21 15:22 2(2) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -i iocsoftw4spce (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