Aggregator

Log Number: 4528559Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The OPS DRVHs for the following cavities have been updated:
1L17-4
Username: alexs
Date/Time: 07-21-26_15:22:36
RF Status: Good
Tuner Status: Good
Comment: DRVH=9.100 Arc rate at 9.3
Previous OPS DRVH: 9.3
Special Instructions:

Log Number: 4528555Logbook(s): 

• ELOG

Body: 

Checked terminals on the DC output cable for tightness for MQK5R09. Each terminal was able to be tightened by about a quarter turn. The supply was turned over to ops following the inspection.

DC Power will continue to monitor to see if the noise returns.

Log Number: 4528554Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: Beam off.

Log Number: 4528553Logbook(s): 

• ELOG

Body: 
HYST AREA Version 7-0 has FAILED to cycle:

MQA5A06 -- E301B11 -- ea3mag -- Failed to set after 2 cycle attempts


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

Area.Linacs.North
Area.Linacs.South
Area.Arcs.Arc1.Spreader
Area.Arcs.Arc1.Arc
Area.Arcs.Arc1.Recombiner
Area.Arcs.Arc1.Extraction
Area.Arcs.Arc2.Spreader
Area.Arcs.Arc2.Arc
Area.Arcs.Arc2.Recombiner
Area.Arcs.Arc2.Extraction
Area.Arcs.Arc3.Spreader
Area.Arcs.Arc3.Arc
Area.Arcs.Arc3.Recombiner

Log Number: 4528552Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

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

Log Number: 4528550Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
2L16-2
Username: jkt
Date/Time: 07-21-26_15:14:18
RF Status: Good
Tuner Status: Good
Comment: recovered lowering the attenuation. Monitor the GASK with the beam loading
Special Instructions:

Maintenance Tag: Component: Other

Log Number: 4528540Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: RF was turned on in:
R02

Log Number: 4528539Logbook(s): 

• ELOG

Body: 
HYST AREA Version 7-0 has FAILED to cycle:

MBC1C01H -- BS04B09 -- sb4mag -- Failed to set after 2 cycle attempts
MBC1C02V -- BS04B09 -- sb4mag -- Failed to set after 2 cycle attempts
MBC1C03H -- BS04B09 -- sb4mag -- Failed to set after 2 cycle attempts
MBC1C04H -- BS04B09 -- sb4mag -- Failed to set after 2 cycle attempts
MBC1C05V -- BS04B09 -- sb4mag -- Failed to set after 2 cycle attempts
MBC1C06H -- BS04B09 -- sb4mag -- Failed to set after 2 cycle attempts
MBC1C07H -- BS04B09 -- sb4mag -- Failed to set after 2 cycle attempts

Log Number: 4528534Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: RF was turned on in:
R12
R13
R14
R15
R17
R18
R19
R1G
R1O
R1N
R1F
R1M
R1L
R1D
R1K
R1J
R1B
R1A
R1I
R1Q
R22
R24
R25
R26
R27
R29
R2H
R2F
R2C
R2B
R2A
R2Q
R2J
R2K
R2M
R2O
R2N
R2P

Log Number: 4528533Logbook(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 = 8.127 A/s
ARC2A Ramp Rate = 6.939 A/s
ARC3A Ramp Rate = 9.725 A/s
ARC4A Ramp Rate = 10.989 A/s
ARC5A Ramp Rate = 9.961 A/s
ARC6A Ramp Rate = 9.222 A/s
ARC7A Ramp Rate = 9.973 A/s
ARC8A Ramp Rate = 11.962 A/s
ARC9A Ramp Rate = 9.370 A/s
ARCAA Ramp Rate = 12.584 A/s
LAM1C Ramp Rate = 8.295 A/s
LAM3C Ramp Rate = 11.408 A/s
RSEP8A Ramp Rate = 10.612 A/s
RSEP9A Ramp Rate = 5.058 A/s
XSEP2T Ramp Rate = 5.803 A/s
XSEP4T Ramp Rate = 5.311 A/s
XSEP6T Ramp Rate =

Log Number: 4528532Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
1L17-4
Username: alexs
Date/Time: 07-21-26_14:40:41
RF Status: Good
Tuner Status: Good
Comment: Confirmed 2.5 W amp is good and refitted RFCM cables. Now reading CRFP again
Special Instructions:

Maintenance Tag: Component: Other

Log Number: 4528531Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl03
Data from: /usr/opdata/burt/allsnap/07-21-26_06:23:34
Restored file: /tmp/07-21-26_14:40:14.snap


Restore after mauntenance day

Log Number: 4528530Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl03

Saved: chumphry 07-21-26 14:39:56 {A:i B:1 C:4 E:1060 A=BS B=BS C=BS D=BS 0R08=0.00 A B C dump(s) in. Autosave prior to restore.

Log Number: 4528529Logbook(s): 

• ELOG

Entry Makers: chumphryBody: 

Log Number: 4528525Logbook(s): 

• ELOG

Entry Makers: chumphryBody: 

Magnet Flushing completed for today
Accelerator in Controlled Access

Log Number: 4528513Logbook(s): 

• ELOG

Body: 

New NDX I400 unit at 1L07-1L08 behaves well, also improving the spread of the measured currents. The unit still needs to be Autobiased using the downtime today to make fine adjustments for the currents' biases. Other NDX units in NL show corrected biases close to zero (with the 1S01 unit with a small shift that may be corrected). In the SL, there's a similar case of 2L16, that has the largest current measurement spread, and may benefit from I400 replacement. Not a critical issue (don't have to "fix a working thing"). 2L06 would benefit from the autobiasing.

Log Number: 4528509Logbook(s): 

• ELOG

Entry Makers: diggsdelkBody: 

Removed locks from Arc 5 and turn on Box Power Supply, ready for operation.

Log Number: 4528501Logbook(s): 

• ELOG

Entry Makers: kazimiBody: 

Figures attached show the magnet cycle has changed from 20 days ago (2026-07-01 compared to now 2026-07-21). The magnet was correctly cycling between 60A and 2A then and now it is cycling between 60A and -60A.
Figures 1 and 4 are now and Figures 2 and 3 show correct cycling sequence from 20 days ago

We changed the magnet limits from (-60A and +60A) to (2A and +60A).
Figure 5 shows that after changing the max and min limits the magnet cycle is working properly.

Log Number: 4528499Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
1L25-4
Username: holben
Date/Time: 07-21-26_13:57:00
RF Status: Good
Tuner Status: Good
Comment: C100 Unbypassed - Cavities 2 & 4
Special Instructions:

Maintenance Tag: Component: Other

Log Number: 4528498Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
1L25-2
Username: holben
Date/Time: 07-21-26_13:57:00
RF Status: Good
Tuner Status: Good
Comment: C100 Unbypassed - Cavities 2 & 4
Special Instructions:

Maintenance Tag: Component: Other