Aggregator

Log Number: 4479160Logbook(s): 

• ELOG

Body: Currently Disabled Alarms - ACC

The Following Alarms Have Been Disabled Within the Last Week
===============================================================
03/18/2026 00:43:51
ACC=>IOCS=>NORTH_LINAC=>iocnl2=>camac=>iocnl2:noXrate (NO XRATE)
jhoward
see elog #4477821
---------------------------
03/16/2026 12:33:45
ACC=>RF=>NORTH_LINAC=>1L26=>1L26-1=>R1Q1ALM07 (BYPASS CONNECTIVITY ERROR)
bjacob
Not in use. Nuisance
---------------------------
03/16/2026 12:33:20
ACC=>RF=>NORTH_LINAC=>1L26=>1L26-1=>R1Q1ALM06 (ITOT CONNECTIVITY ERROR)
bjacob

Log Number: 4479159Logbook(s): 

• ELOG

Body: 

Klystron arced 3/21/26 @ 02:25 was captured on MyaPlot. Recent change after recovery, KMAV appears to be lower on MyaPlot than HPA Controller reading. No explanation at this time for the cause.

Log Number: 4479158Logbook(s): 

• ELOG
• LERFLOG

Body: 
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM

Date : 03-22-26
Time : 23:28:20
Day : Sunday
Shift : Owl

Crew Chief : Deir
Program Deputy: Roblin
Team : A
Arm : Samari
Designated SSO: Smith
LERF Operator:
Operators : Samari, Smith

This stamp certifies that the above Crew Chief has read/reviewed/received the following:

Log Number: 4479156Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: AE match finishing.

Log Number: 4479155Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

Body:  Accelerator PHYSICS STUDIES RESTORE ACC DOWN OFF (SAM) Planned 0 0 8

Log Number: 4479154Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System Masking for: BeamLossMonitor
User: alexs
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
ILM8T09<

Log Number: 4479153Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System UN-Masking for: BeamLossMonitor
User: alexs
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
ILM8T

Log Number: 4479152Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System Masking for: BeamLossMonitor
User: alexs
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
ILM8T09<

Log Number: 4479151Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System UN-Masking for: BeamLossMonitor
User: alexs
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
ILM8T

Log Number: 4479150Logbook(s): 

• ELOG

Entry Makers: lrichardBody: 

Other than ILM0R03 (Fig. 6), no other BLMs tripped us (Figs. 1-3). IDX activity pretty low (Figs. 4, 5).

Log Number: 4479149Logbook(s): 

• ELOG

Entry Makers: alexsBody: 

Restoring beam after Arc 1 spreader test plan backout (and cycling east arc box supplies and trims), found 6S01 IDX rates elevated back around 200 after orbit locks finished steering. Checking beam to 4R to rule out 4S01 contributions confirmed that it was indeed all coming from 6S, but the rels in 6L from the start of shift "good rates" all-save were already very close. The 3R10V corrector had been a good knob before, and still is. A change of less than 100 G*cm brought rates back down to ~10.

Figures 3 and 4 are orbits after correction.

Log Number: 4479148Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System Masking for: BeamLossMonitor
User: lrichard
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
ILM8T

Log Number: 4479147Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System UN-Masking for: BeamLossMonitor
User: lrichard
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
IL

Log Number: 4479146Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl632

Saved: shriner 03-22-26 22:26:24 {A:i B:5 C:2 E:345 A=Tune B=BS C=BS D=BS 0R08=6.39 dump(s) in. beam to AR. reduced IDX rates.

Log Number: 4479145Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl05
Data from: /usr/opdata/burt/allsnap/03-22-26_16:53:35
Restored file: /tmp/03-22-26_22:18:04.snap

Log Number: 4479144Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl05

Saved: lrichard 03-22-26 22:17:51 {A:i B:5 C:2 E:345 A=Tune B=BS C=BS D=BS 0R08=0.00 6R dump in. A B C dump(s) in. Autosave prior to restore.

Log Number: 4479143Logbook(s): 

• ELOG

Body: 

HYST AREA Version 7-0 has successfully cycled the following:

Area.Arcs.Arc1.Spreader
Area.Arcs.Arc1.Arc
Area.Arcs.Arc1.Recombiner
Area.Arcs.Arc1.Extraction
Area.Arcs.Arc3.Spreader
Area.Arcs.Arc3.Arc
Area.Arcs.Arc3.Recombiner
Area.Arcs.Arc3.Extraction
Area.Arcs.Arc5.Spreader
Area.Arcs.Arc5.Arc
Area.Arcs.Arc5.Recombiner
Area.Arcs.Arc5.Extraction
Area.Arcs.Arc7.Spreader
Area.Arcs.Arc7.Arc
Area.Arcs.Arc7.Recombiner
Area.Arcs.Arc7.Extraction
Area.Arcs.Arc9.Spreader
Area.Arcs.Arc9.Arc

Log Number: 4479142Logbook(s): 

• MOLLER
• ELOG

Tags: 

• Moller
• PD

Entry Makers: jonesgaskelldwineskashydougberdnikciprianBody: 

Hall A techs continued with drill and layout work of cable tray supports for MOLLER power supplies. Hall techs started process of removing fiber optic cables along truck ramp.

Log Number: 4479140Logbook(s): 

• ELOG

Entry Makers: anthonyBody: 

Figure 1. Orbits after attempts to flatten BPMs 1L27 and 1L 28 x and y. Y successful, x was not, so just flattened 1L28. 1S01 YPOS=9.29 1S02 YPOS=1.76 1S03 YPOS=1.65.
Figure 2 after zeroing correctors MBT1S01 and 1S02 and steering 1S02 YPOS to zero with shunt MXJ1S03.
Delta=0.00579 DELTABDL1=2411.55 DELTABDL2=-2408.39
Figure 3 after adjusting shunts with delta value. 1S01YPOS=0.24 1S02YPOS=-1.18 1S03 YPOS=0.80 1S05YPOS=0.0 1S06YPOS=N/A (no 1S06 BPM) 1S07YPOS-6.41
Flattened remainder of spreader with correctors.

Log Number: 4479139Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: 

The following box supplies were CYCLED by version 2-16 of the Box Supply Cycling Script:
ARC1A Ramp Rate = 7.400 A/s
ARC3A Ramp Rate = 9.272 A/s
ARC5A Ramp Rate = 9.280 A/s
ARC7A Ramp Rate = 9.277 A/s
ARC9A Ramp Rate = 9.300 A/s
RSEP9A Ramp Rate = 4.865 A/s