Aggregator

Log Number: 4471939Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl03

Saved: bschauml 02-18-26 23:12:41 {A:5 B:3 C:1 E:345 A=BS B=BS C=BS D=BS 0R08=0.00 0R08 dump in. Autosave prior to restore.

Log Number: 4471938Logbook(s): 

• ELOG

Entry Makers: bschaumlBody: 

Beam blown past 0L01

Log Number: 4471937Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl03
Data from: /usr/opdata/burt/allsnap/02-17-26_00:18:44
Restored file: /tmp/02-18-26_22:23:38.snap


Loading ZPOS to ILD

Log Number: 4471936Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl03

Saved: bschauml 02-18-26 22:23:24 {A:5 B:3 C:1 E:345 A=BS B=BS C=BS D=BS 0R08=0.00 0R08 dump in. Autosave prior to restore.

Log Number: 4471935Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl03
Data from: /usr/opdata/burt/allsnap/02-17-26_00:18:44
Restored file: /tmp/02-18-26_22:22:33.snap


Loading ZPOS to ILD

Log Number: 4471934Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl03

Saved: bschauml 02-18-26 22:22:19 {A:5 B:3 C:1 E:345 A=BS B=BS C=BS D=BS 0R08=0.00 0R08 dump in. Autosave prior to restore.

Log Number: 4471933Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System Masking for: BeamLossMonitor
User: bschauml
Areas: Injector

BeamLossMonitor Devices:
ILM0I07
ILM0L01A
ILM0L01B
ILM0L02
ILM2D00A
ILM2D00B
ILM0L04A
ILM0L04B
ILM0L05
ILM0L06A
ILM0L08
ILM0R01
ILM4D00
ILM0R03
ILM0R04
ILM0R06
ILM0R08
ILM0R09

Log Number: 4471932Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Destination Masking to: Injector
User: bschauml

Log Number: 4471931Logbook(s): 

• SRFPLASMA
• SRFLOG
• ELOG

Entry Makers: bschaumlBody: 

Cav 1: Onset @ 9.5 MV/m, 10 Rem/Hr @ 13.5 MV/m

Cav 2: Onset @ 8.5 MV/m, 10 Rem/Hr @ 12.5 MV/m

Cav 3: Onset @ 9.5 MV/m, 10 Rem/Hr @ 15 MV/m

Cav 4: Onset @ 12.0 MV/m, 10 Rem/Hr @ 17.5 MV/m

Cav 5: Onset @ 7.7 MV/m, 10 Rem/Hr @ 11 MV/m

Cav 6: Onset @ 9.2 MV/m, Quench @ 13.7 MV/m

Cav 7: Onset @ 12.0 MV/m, 10 Rem/Hr @ 18.5 MV/m

Cav 8: Onset @ 10.7 MV/m, 10 Rem/Hr @ 17 MV/m

Log Number: 4471929Logbook(s): 

• ELOG
• SRFLOG

Body: 

1st shift testing this cryomodule.
Brought all cavities up to ~ 4 MV/m without problems
Tested interlocks - Arc, Cold Window, BLVac and WGVac- all good
Checked tuners on Cavities 3 and 4
Cavity 3 tunes down to 1497.013 MHz but no further.
Cavity 4 tunes down to 1497.001 MHz but no further
Both cavities tuned freely after reversing direction
No faults or limit switch activation noted

Log Number: 4471928Logbook(s): 

• SRFPLASMA
• SRFLOG
• ELOG

Entry Makers: bschaumlBody: 

Cav 1: Onset @ 13 MV/m, quenching above 13.5 w/ steadily increasing WG vacuum

Cav 2: Onset @ 9.7 MV/m, quenching above 14.7

Cav 3: Bypassed

Cav 4: Onset @ 14.5 MV/m, admin/quench limited at 21. The upstream beamline decarad jumped up partway through the ramp (at about 19.5) so I may revisit this one later.

Cav 5: Onset @ 11 MV/m, quenching at 13.2

Cav 6: FE free up to 15.4 MV/m, where cavity quenches in SEL. Was initially quenching at 12.1 w/ no field emission so I pulse processed up to 15.6 where (fig. 5) we were getting frontend saturation.

Cav 7: Bypassed

Cav 8: Bypassed

Log Number: 4471926Logbook(s): 

• ELOG

Tags: 

• Autolog
• MCC8am

Body:  */ ATLis Comments Posted 18:00 Tuesday February 17 through 18:00 Wednesday February 18 AES DC power Systems Replace MQPAA25 20A SCE

2026-02-18 09:02 - James Coleman

Task approv

Log Number: 4471923Logbook(s): 

• POLOG
• ELOG

Body: 

1- The first difference is not a problem. Ultimately, MOLLER compares the definition of helicity to the polarimeters in the Hall (Moller and Compton) to find the real helicity of the electron beam.

2- The second difference is a result of mis-labeling and this was fixed. Actually, there is no difference here.

Log Number: 4471921Logbook(s): 

• ELOG

Body: 

If Vee block installation requires magnet disassemble please contact Mag group so they can take care of this.

Log Number: 4471920Logbook(s): 

• ELOG

Body: 

Completed.

Log Number: 4471919Logbook(s): 

• ELOG
• SLOG

Tags: 

• MCC8am
• Software and Controls

Body: 

ReCap Documentation and Training Presentation
1L06 EPICS Helium Flow Meter Controls
PT0L02 Degrader Comm Alarm Active
CED updates for 2L03/2L25

Log Number: 4471918Logbook(s): 

• ELOG

Body: 

As sugested by Daniel , to ensure the anode bias isn't inadvertently left on after a LV QE scan, an Ops Alarm Handler alarm will be implemeneted.

Log Number: 4471917Logbook(s): 

• ELOG

Body: 

An ePAS is issued with JLab-PTW-9928_PTW (see attachment) to cover the HV connection portion of this ATLis.

Log Number: 4471916Logbook(s): 

• POLOG
• ELOG

Body: 

Checked the labeling of RTP 2 crystal HV cables. It turned out that we mislabeled cable 3 and cable 4 during our work in November 2024 - see Figures 1 and 2. The original and correct label is on the black plastic cap. The white label was put in when we cut the cables to add the WAGO connectors.

The labeling was corrected. This explains why when we installed the new Driver we had to swap cables - see linked entry. So at the end, there is no difference in the cabling of the two drivers, just we mislabeled the cables on the old driver.

Log Number: 4471915Logbook(s): 

• ELOG

Body: 

PSS Cert completed for 2L04, 2L12, 2L18 and 2L25 after repairs completed this week to get them into HV. 2L25-7 developed a ModAnode Volt High Fault after HV dropped out and back on several times for cert and won't go back into HV until new ModAnode board installed most likely. 2L04-2 RFCM locked up and had to have a RD1 installed to get into HV for cert (been up all week until minutes before cert. !!!) 2L08-8 had the RFCM replaced for a HV enable fault and it was checked out in HV also today.