Aggregator
FSD Masking Tool: Successful 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
FSD Masking Tool: Partial Success Destination masking to: Injector
CREW CHIEF SIGN IN
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM
Date : 07-21-26
Time : 15:43:26
Day : Tuesday
Shift : Swing
Crew Chief : Richardson
Program Deputy: KLarrieu
Team : X
Arm : Thomas
Designated SSO: Schaumloffel
LERF Operator:
Operators : Schaumloffel, Thomas
This stamp certifies that the above Crew Chief has read/reviewed/received the following:
Machine Update
The OPS DRVHs for the following cavities have been updated: 2L16-2
The OPS DRVHs for the following cavities have been updated:
2L16-2
Username: jkt
Date/Time: 07-21-26_15:35:07
RF Status: Good
Tuner Status: Good
Comment: DRVH=6.000 stable here at 6MV/m. monitor the GASK with beam loading.
Previous OPS DRVH: 7
Special Instructions:
NLinac TL pumping done
COMMENT ON RF Maintenance for the week of July 20th through July 26th, 2026
-Replaced aging cables in 0L04 from patch panel to FCCs in all 8 cavities and secured internal connections in the 0L04-2 FCC to hopefully stabilize GASK.
-Verified output of 2.5 W amp and refitted cables on 1L17-4 RFCM. Cavity recovered and optimized RFCM.
-Confirmed 2L13-2 needs an RFCM replacement, but wasn't able to get to it today.
The OPS DRVHs for the following cavities have been updated: 1L17-4
COMMENT ON Investigate Noisy 20A Trims (2026)
Crew Chief Shift Log, 2026-07-21 DAY
Start of shift: Beam off.
HYST AREA 7-0 Cycles Magnets
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
Crew Chief Timesheet Summary: 21 Jul 2026 DAY
The following cavity histories have been updated: 2L16-2
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
RF On/Off turned RF On
HYST AREA 7-0 Cycles Magnets
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
RF On/Off turned RF On
Box Supplies Turned on and Cycled Once
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 =
The following cavity histories have been updated: 1L17-4
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










