Aggregator

Log Number: 4475494Logbook(s): 

• ELOG

Entry Makers: shrinerBody: 

At ~1740 ODH head OM06 in Hall B went into alarm and SSG on-call was contacted. After investigation SSG tuned the sensitivity of the head and readings returned to normal.

Log Number: 4475493Logbook(s): 

• ELOG

Body: ACC=>BOXES=>ARC7A has been enabled in alarm handler

Powered back on by DC Power and handed over to Ops

Log Number: 4475492Logbook(s): 

• ELOG

Tags: 

• Readme

Entry Makers: chumphryBody: 

Log Number: 4475491Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The OPS DRVHs for the following cavities have been updated:
2L13-5
Username: alexs
Date/Time: 03-10-26_18:38:18
RF Status: Good
Tuner Status: Good
Comment: DRVH=4.500 Cannot regulate above 4.5 MV/m, suspicious CRFP readback. log 4475490
Previous OPS DRVH: 7.2
Special Instructions:

Log Number: 4475490Logbook(s): 

• ELOG
• RFLOG

Entry Makers: alexsBody: 

Cavity came back SOS'ing after returning SL to Power Permit. Initially suspected it might need tuning, but the detune angle looked fine, and soon after realized GASK was jumping back and forth between .5 and 10 V, while CRFP wasn't getting above 600 W and dropping to zero even with GASK railed. By walking down the gradient, it looks like the cavity can stay regulated at 4.5 MV/m, so leaving the drive high there for now. KCCU is stable at 1.24 A, so potentially a dying 2.5 W amp or RFCM going south.

Log Number: 4475482Logbook(s): 

• ELOG

Tags: 

• Autolog
• MCC8am

Body:  */ ATLis Comments Posted 18:00 Monday March 09 through 18:00 Tuesday March 10 AES DC power Systems Investigate and Troubleshoot YBBS06 ARC7 Shunt failure

2026-03-10 13:03 - Kevin O'Brien

Log Number: 4475476Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: RF was turned on in:
R27
R28
R29
R2A
R2B
R2C
R2E
R2G
R2H
R2I
R2J
R2K
R2L

Log Number: 4475475Logbook(s): 

• ELOG

Entry Makers: kernsBody: 

Replaced and checked 2.5W amp and recovered cavity RF after Beam Permit restored. Zone ready !!

Log Number: 4475472Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: 

The following box supplies were TURNED ON AND CYCLED ONCE by version 2-16 of the Box Supply Cycling Script:
ARC1A Ramp Rate = 7.400 A/s
ARC2A Ramp Rate = 7.131 A/s
ARC3A Ramp Rate = 4.842 A/s
ARC4A Ramp Rate = 10.144 A/s
ARC5A Ramp Rate = 9.307 A/s
ARC6A Ramp Rate = 9.326 A/s
ARC7A Ramp Rate = 9.296 A/s
ARC8A Ramp Rate = 11.455 A/s
ARC9A Ramp Rate = 9.322 A/s
ARCAA Ramp Rate = 11.756 A/s
RSEP8A Ramp Rate = 10.544 A/s
RSEP9A Ramp Rate = 4.865 A/s
XSEP2T Ramp Rate = 5.386 A/s
XSEP4T Ramp Rate = 5.186 A/s
XSEP6T Ramp Rate = 9.209 A/s
XSEP8T Ramp Rate = 16.057 A/s
XSEPAT Ramp Rate

Log Number: 4475469Logbook(s): 

• ELOG
• MOLLER

Body: 

IPM0R05 is disconnected from test setup (Labjack) in rack IN03B23 and connected to Moller ADC. The phase monitor in rack IN02B24 was disconnected from QWeak crate previous week, so it is taken to rack IN03B25 and connected to Moller ADC.

We still need BCM signal to rack IN03B25 to connect to Moller ADC. Additionally, we will swap the Moller ADC LV power supply with a new one, which is under test right now.

Log Number: 4475466Logbook(s): 

• ELOG
• SLOG

Tags: 

• MCC8am
• Software and Controls

Body: 

LCW signals that were not updating in EPICS for B92 fixed and updating. New LCW signals for B67 added
CED support for Hall B BPM IPM2H00
ACC Alarm Handler Updates

Log Number: 4475463Logbook(s): 

• ELOG

Body: 

Replaced and tested 2.5w amp in 2L15-3 (TWICE) and 2L19-6. Recovered and optimized RF in 2L19-6 and could only get 4Mv/m due to CWVF . Was in process of recovering RF on 2L15-3 after finding a low drive amp that I replaced last Friday. We checked all 2.5w amps and drive lines today to verify the whole drive before multiple lock -ups. 2L15-3 has good drive now but will need my RF checkout and optimizing before completing EPASS again. Good 2.5w amp checkout training to Xavier and Trey and they are Experts now. Bench checkout needs some work though.

Log Number: 4475450Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Destination Masking to: Injector
User: anthony

Log Number: 4475448Logbook(s): 

• ELOG

Entry Makers: kernsBody: 

Forgot to mention cavity 6 dropping with CWVF with cavity 5 still off. See that it is getting worse than last years run where it was tripping at 6 Mv/m. Don't see anything with cavity 5 history about CWVF or being limited. Running at 6.5Mv/m.

Log Number: 4475444Logbook(s): 

• ELOG

Entry Makers: kernsBody: 

Recovered RF in the cavity but had CWVF's above 4Mv/m. Set ODVH to 4.0Mv/m until vacuum looked at by SRF.

Log Number: 4475442Logbook(s): 

• HCLOG
• ELOG
• SRFLOG

Body: 

Hall C
- VIP3C22 and VIP3H02 restarted
- Pumping on line from VBV3H04 to VBV3H07

Log Number: 4475441Logbook(s): 

• ELOG

Tags: 

• Readme

Body: [figure:1] Always check the Authorization web application for the latest status: JLab Authorization Manager

Log Number: 4475440Logbook(s): 

• ELOG
• RADLOG

Entry Makers: shrinerBody: 

Log Number: 4475436Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Shenenberger
DATE:             03/10/2026
SHIFT:               Swing

The operator has read the following:

Log Number: 4475435Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Shriner
DATE:             03/10/2026
SHIFT:               Swing

The operator has read the following:

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