Aggregator

Log Number: 4478751Logbook(s): 

• ELOG

Entry Makers: yoonBody: 

Log Number: 4478750Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Fopt 7.9 completed successfully. The runtime settings include a sample count of 15, a minimum current of 4, and an operating regime of Standard with Excitation in 1S Region. The corrector and RF kicks applied were 0.488208 and 0.488208 volts respectively. The max. amplitude setting was 1 millimeters. The files for this run were saved in the directory /cs/opshome/hlapps/optics/diforb/26mar202214. The X and Y stability of the machine during the run was 0.0381137 and 0.0434906 (mm) respectively.

Log Number: 4478749Logbook(s): 

• ELOG

Entry Makers: yoonBody: 

clears without issue but this has happened a few times on our shift

Log Number: 4478748Logbook(s): 

• BTLOG
• ELOG

Entry Makers: alexsBody: 

-Initial attempt to only adjust 8R10 quad found excessive breathing in Arc 9 30 Hz orbit.

-Adjusted 8R10V corrector to minimize IIX9S00, then rebalanced 9S01V and 9S04V to clear up breathing in absolute orbit. No improvement.

-Reverted steering and instead adjusted launch to 0 relative orbits in 9L and Arc 9 from zero pos taken at start of shift. Beam was still breathing on the 30 Hz BPMs.

-Adjusting MQA8R10 wasn't showing much change on the BPMs, so gave 8R08 a try.

Log Number: 4478747Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Fopt 7.9 completed successfully. The runtime settings include a sample count of 15, a minimum current of 4, and an operating regime of Standard with Excitation in 1S Region. The corrector and RF kicks applied were 0.488208 and 0.488208 volts respectively. The max. amplitude setting was 1 millimeters. The files for this run were saved in the directory /cs/opshome/hlapps/optics/diforb/26mar202200. The X and Y stability of the machine during the run was 0.135609 and 0.0723845 (mm) respectively.

Log Number: 4478744Logbook(s): 

• BTLOG
• ELOG

Entry Makers: alexsBody: 

Log Number: 4478743Logbook(s): 

• ELOG

Entry Makers: yoonBody: 

Log Number: 4478742Logbook(s): 

• ELOG
• BTLOG

Body: Fopt results from /usr/ntfs/public/optics/diforb/26mar202110
Comment: after recombiner match
HOSTNAME: opsl04
CED WORKSPACE: OPS CED LOGIN KEY: pro
MYA DEPLOYMENT: ops
CONFIG PATH: /cs/prohome/apps/q/QTSnyder_QT5/1-2/fileio/config/cs.conf
DIFORB PATH: /usr/ntfs/public/optics/diforb

Log Number: 4478741Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Fopt 7.9 completed successfully. The runtime settings include a sample count of 15, a minimum current of 4, and an operating regime of Standard with Excitation in 1S Region. The corrector and RF kicks applied were 0.488208 and 0.488208 volts respectively. The max. amplitude setting was 1 millimeters. The files for this run were saved in the directory /cs/opshome/hlapps/optics/diforb/26mar202110. The X and Y stability of the machine during the run was 0.0584814 and 0.0633968 (mm) respectively.

Log Number: 4478740Logbook(s): 

• ELOG

Entry Makers: yoonBody: 

Adjusted correctors at the betatron quads used

Log Number: 4478739Logbook(s): 

• ELOG

Body: 

Following a hard reboot, the harp scan remains noisy. Physical inspection of the hardware is required but will require making an access. Per the Crew Chief, the PD has deferred this task until Monday. Preliminary assessment suggests a hardware fault, potentially a blown wire or connection between the harp and the preamp.

Log Number: 4478738Logbook(s): 

• BTLOG
• ELOG

Entry Makers: alexsBody: 

Spoke with optics, and since the 9E01 harp would require an access to troubleshoot, we were advised to instead do a ballpark 8R match using the recombiner match procedure, then move on with ORFP to AR. We agreed that would be a better use of time, and will proceed as such.

Log Number: 4478736Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 3.0.1 Target restore date was 2026-03-20 20:12:57 The output from the myRestore execution was as follows: iocea2hrp pcharp@2026-03-20 20:12 24(24) restored systemEnum@2026-03-20 20:12 2(2) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -i iocea2hrp (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: 4478735Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 16538Title:
9E01 Harp returning noise

Summary:
unable to continue with ORFP Betatron Match due to noise on this harp noiseDuration:
29 minutes

Time Down:
20-Mar-2026 19:35

Log Number: 4478734Logbook(s): 

• DCLOG
• ELOG

Entry Makers: yoonBody: 

took setpoint and cycled

Log Number: 4478733Logbook(s): 

• DCLOG
• ELOG

Entry Makers: yoonBody: 

alarming in handler, showing off loop, resistance alrm. Alex is going out to check on that, power cycling now

Log Number: 4478732Logbook(s): 

• ELOG

Entry Makers: alexsBody: 

Took setpoint, no hysteresis

Log Number: 4478731Logbook(s): 

• ELOG

Entry Makers: eformanBody: 

9E01 Harp is returning noise. Tried adjusting gain several times, no joy.
Rebooting the IOC did not change anything.
Call placed to I&C on-call

Log Number: 4478730Logbook(s): 

• BTLOG
• ELOG

Entry Makers: alexsBody: 

Log Number: 4478729Logbook(s): 

• ELOG

Entry Makers: yoonBody: 

Alot of noise on this harp, really the only difference between these harp swipes is that the signal level increases or decreases as gain setting is adjusted