Aggregator

Log Number: 4503914Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17004Title:
Harp swipes + FOPT

Summary:
Routine optics scans.Duration:
2 minutes

Time Down:
25-May-2026 03:17

Time Up:

Log Number: 4503913Logbook(s): 

• ELOG

Entry Makers: dchriBody: 

3rd pass Separation w/ xB & xD was mainly fixed by reducing vernier by ~11.0
xB & xD are now 'more' on top of one another than before

In between steering adjustments done by a fellow operator (they have a separate ELog detailing those changes)

Fig. 13
Lots of adjustments to get rates down, overall better than it was before we started

Fig. 1,2
Using xB beam TUNE
Before corrections

Fig. 3,4
Using xD beam TUNE
Before corrections

Fig. 5
corrections w/ xB beam TUNE

Fig. 6
Using xB beam TUNE
After DogLeg corrections

Fig. 7
Using xD beam TUNE
After DogLeg corrections

Fig.

Log Number: 4503912Logbook(s): 

• ELOG

Entry Makers: jhowardBody: 

Log Number: 4503911Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17003Title:
Correcting orbits to hall dumps

Summary:
Quick orbit touch up along with some adjustments to bring down IDX rates throughout.

Log Number: 4503909Logbook(s): 

• ELOG
• BTLOG

Tags: 

• Autolog

Body: dogCalc V0-14 download

hostname: opsl02
CED workspace: OPS
CED login_key: pro

Log Number: 4503908Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17003Title:
Correcting orbits to hall dumps

Summary:
Quick orbit touch up along with some adjustments to bring down IDX rates throughout.Duration:
2 minutes

Time Down:
25-May-2026

Log Number: 4503907Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17001Title:
VBV1L06A and VBV1L06B keep tripping off

Summary:
Both valves for this bypassed zone have tripped off and will not open back up even though vacuum levels look to be okay. VIP1L06B did spike but has recovered. Troubleshooting now.

Log Number: 4503905Logbook(s): 

• SRFLOG
• ELOG

Entry Makers: kpriceBody: 

D beam is really hard to see on 8E viewer; putting a box around it makes it impossible to distinguish from the background (fig 6). If the box is centered on D beam, it's easy to see how far away B is (figs 7 and 8). BPMs make it pretty clear.

Log Number: 4503904Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17002Title:
Pass 5H sep tripped off

Summary:
seems like it was flow related.

Log Number: 4503903Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17002Title:
Pass 5H sep tripped off

Summary:
seems like it was flow related.

Log Number: 4503902Logbook(s): 

• SRFLOG
• ELOG

Entry Makers: kpriceBody: 

Log Number: 4503901Logbook(s): 

• SRFLOG
• ELOG
• RFLOG

Entry Makers: dchriBody: 

seems to be flow related. Will try to reset and get cav 1 and 2 back on....

Log Number: 4503900Logbook(s): 

• SRFLOG
• ELOG

Entry Makers: kpriceBody: 

Some (but not all) ion pumps in adjacent modules also fault when attempting to reset VIP1L06B. Possibly related: yesterday when we attempted to turn on HV to 1L06, several cavities in nearby zones tripped off or into SEL.

Log Number: 4503899Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17001Title:
VBV1L06A and VBV1L06B tripped off and are staying shut

Summary:
Both valves for this bypassed zone have tripped off and will not open back up even though vacuum levels look to be okay. VIP1L06B did spike but has recovered.

Log Number: 4503898Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System Masking for: BeamLossMonitor
User: jhoward
Areas: All

BeamLossMonitor Devices:
ILM0I07
ILM0L01A
ILM0L01B
ILM0L02
ILM2D00A
ILM2D00B
ILM0L04A
ILM0L04B
ILM0L05
ILM0L06A
ILM0L08
ILM0R01
ILM4D00
ILM0R03
ILM0R04
ILM0R06
ILM0R08
ILM0R09
ILM1L01
ILM1L02
ILM6R08
ILM3S00
ILM7S00
ILM9S00
ILM5S10
ILM5E03
ILM7S01
ILM9A01
ILM3E02
ILM5A01
ILM1A04
ILM1A06
ILM1A09
ILM5A10
ILM1A16
ILM1A19
ILM3R10
ILM9R07
ILM1R09
ILM2L03
ILM5R10
ILM5R05
ILM2L01
ILM2T09
ILM8T0

Log Number: 4503897Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17000Title:
VBV1L06A and VBV1L06B tripped off and are staying shut

Summary:
Both valves for this bypassed zone have tripped off and will not open back up even though vacuum levels look to be okay. VIP1L06B did spike but has recovered.

Log Number: 4503896Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 17000Title:
VBV1L06A and VBV1L06B tripped off and are staying shut

Summary:
Both valves for this bypassed zone have tripped off and will not open back up even though vacuum levels look to be okay. Troubleshooting now.

Log Number: 4503895Logbook(s): 

• ELOG
• RFLOG
• SRFLOG

Entry Makers: dchriBody: 

VIP1L06B (also A) having trouble coming back. If we struggle too long with it then we will likely have to call in the experts

Just yesterday we had to bypass this zone due to HV faults...

Before then, shortly after the zone first tripped, several surrounding zones also tripped off (see linked ELog)

I wonder if there is a connection here...

Log Number: 4503888Logbook(s): 

• HCLOG
• ELOG

Entry Makers: dchriBody: 

Log Number: 4503884Logbook(s): 

• ELOG

Entry Makers: kpriceBody: 

Significant improvement at 2C00, small improvement to upstream rates.