Aggregator

Log Number: 4504956Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavities have been UnGSET 0:
1L14-1
Username: kprice
Date/Time: 05-27-26_04:52:02
RF Status: Good
Tuner Status: Good
Comment: UnGSET 0 - stepped on -100k - Covering for loss of 1L10
Special Instructions:

Maintenance Tag: Component: Operator Entry - See SME

Log Number: 4504955Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavities have been UnGSET 0:
1L12-8
Username: jhoward
Date/Time: 05-27-26_04:49:45
RF Status: Good
Tuner Status: Good
Comment: UnGSET 0 - stepped on -100k - Trying to compensate for 1L10
Special Instructions: , HPA breaker tripped

Maintenance Tag: Component: Operator Entry - See SME

Log Number: 4504954Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavities have been UnGSET 0:
1L12-7
Username: jhoward
Date/Time: 05-27-26_04:49:45
RF Status: Good
Tuner Status: Good
Comment: UnGSET 0 - stepped on -100k - Trying to compensate for 1L10
Special Instructions: , HPA breaker tripped

Maintenance Tag: Component: Operator Entry - See SME

Log Number: 4504947Logbook(s): 

• ELOG
• RFLOG

Entry Makers: victorcBody: Calling RF on-call.

Log Number: 4504940Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17032Title:
VIP1L06B tripped valves closed again

Summary:
Gave the vacuum about 7 minutes to recover enough to send beam again without tripping the pump off again.Duration:
7 minutes

Time

Log Number: 4504939Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17032Title:
VIP1L06B tripped valves closed again

Summary:
Gave the vacuum about 7 minutes to recover enough to send beam again without tripping the pump off again.Duration:
7 minutes

Time

Log Number: 4504938Logbook(s): 

• ELOG
• SRFLOG

Entry Makers: victorcBody: 

Third night in a row. Gave the vacuum a few minutes to recover. So far so good.

Log Number: 4504929Logbook(s): 

• HDLOG
• ELOG

Entry Makers: victorc

Log Number: 4504928Logbook(s): 

• ELOG

Body: Calibration ParametersHall:DTarget: JD70-107 55um 45/135 degPass: 5.5Note: Calibrated On:2026-May-03 18:47Calibrated By: alexsFile:D-2026-05-03_1847_JD70-107_55um_45_135_deg_Pass-5.5.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)

Log Number: 4504927Logbook(s): 

• BTLOG
• ELOG

Entry Makers: kpriceBody: 

A period of relative stability started when Hall C dropped current from 50 -> 28 uA at 15:45. The A1 interception locks were turned on at 17:08, which seems to be driving loss up at 2C00, and slightly increasing interception on A1. The discharge at 01:30 reduced both briefly.

Log Number: 4504924Logbook(s): 

• ELOG

Entry Makers: kpriceBody: 

Log Number: 4504923Logbook(s): 

• BTLOG
• ELOG

Entry Makers: kpriceBody: 

Yes, I'm still on about this. Reminder that there's a gain switch on IPM0I01 around 25 uA from the gun, which will throw positions if the lock is engaged in two different current regimes, i.e., if Hall C wants to run below 25 uA the A1 interception lock will try to restore the rels from the low-gain/high-current regime. The difference is about 0.2 mm in x and y, a shift that in the past was large enough to be noticeable throughout the machine. My slides about this from 2024 are attached to elog 4248169 (linked).

Log Number: 4504918Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 3.0.1 Target restore date was 2026-05-27 02:32:09 The output from the myRestore execution was as follows: iocsoftw3spce systemEnum@2026-05-27 02:32 2(2) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -i iocsoftw3spce (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: 4504913Logbook(s): 

• ELOG

Entry Makers: kpriceBody: 

Log Number: 4504912Logbook(s): 

• BTLOG
• ELOG
• RFLOG

Entry Makers: kpriceBody: 

The injector energy lock did That Thing again, where it suddenly drops 0.1 MV/m for no presently obvious reason. It coincided with the 1A SLM spot stretching way out, which we would normally correct with gangphase. This time I tried pushing the gradient back up in 0L04 without making any changes to gangphase, and the spot rounded right back up and loss dropped to prior levels.

Log Number: 4504910Logbook(s): 

• HDLOG
• ELOG

Entry Makers: victorc

Log Number: 4504907Logbook(s): 

• ELOG

Body: Calibration ParametersHall:DTarget: 1.1x10-3 Al 100umPass: 5.5Note: Calibrated On:2026-May-02 07:48Calibrated By: msmithFile:D-2026-05-02_0748_1.1x10-3_Al_100um_Pass-5.5.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)East Wa

Log Number: 4504908Logbook(s): 

• HDLOG
• ELOG

Entry Makers: victorcBody: 

Log Number: 4504882Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Price
DATE:             05/27/2026
SHIFT:               Owl

The operator has read the following:

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

Log Number: 4504881Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Chaudhary
DATE:             05/26/2026
SHIFT:               Owl

The operator has read the following:

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