Aggregator
iochc10 restored
Arc9 JA Dipoles, NL-side, Thermal Images
iochc10 restored
QuickPic - NL partial survey
The following cavity histories have been updated: 2L14-6
The following cavity histories have been updated:
2L14-6
Username: jkt
Date/Time: 07-24-26_09:02:38
RF Status: Good
Tuner Status: Good
Comment: reduced attenuation and recovered to 4MV/m. will monitor the CRFP
Special Instructions:
Maintenance Tag: Component: Other
FSD Masking Tool: Successful Destination masking to: Inj500KeV
IHWP and Hall D IA Settings
From the Hall D test done on 07/22/2026, the IA DAC settings are 40200 to zero the charge asymmetry with IHWP=IN - see linked entry.
The IHWP was taken out of the laser path (IHWP=OUT) yesterday around noon (see Figure 1 and second linked entry) but the IA settings were not updated for the values to zero the charge asymmetry. These values are 15260 and were found in the MOLLER beam study done back in June.
I changed the Hall D IA to 15260 - see Figure 2. When Hall D asks for change in IHWP, they should ask MCC to update the IA settings to the corresponding IA state.
RF On/Off turned HV Off
ARC9A Overtemp trip
Program Deputy Summary, presented 2026-07-24
Box Supplies Were Turned Off
The following box supplies were TURNED OFF by version 2-16 of the Box Supply Cycling Script:
ARC1A Ramp Rate = 8.127 A/s
ARC2A Ramp Rate = 7.217 A/s
ARC3A Ramp Rate = 10.297 A/s
ARC4A Ramp Rate = 11.344 A/s
ARC5A Ramp Rate = 10.435 A/s
ARC6A Ramp Rate = 9.735 A/s
ARC7A Ramp Rate = 10.484 A/s
ARC8A Ramp Rate = 12.277 A/s
ARCAA Ramp Rate = 12.584 A/s
DOG1E Ramp Rate = 3.802 A/s
DOG2E Ramp Rate N/A
DOG3E Ramp Rate N/A
DOG4E Ramp Rate N/A
DOG5E Ramp Rate N/A
DOG6E Ramp Rate N/A
DOG7E Ramp Rate N/A
DOG8E Ramp Rate N/A
DOG9E Ramp Rate N/A
RSEP8A Ramp Rate = 11.081 A/s
RSEP
Operator SIGN IN
Operator SIGN IN
HYST AREA 7-0 Cycles Magnets
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
Downtime Incident CLOSED: ARC9 trip on overtemp
Box Supplies Were Cycled
The following box supplies were CYCLED by version 2-16 of the Box Supply Cycling Script:
ARC1A Ramp Rate = 8.127 A/s
ARC3A Ramp Rate = 9.725 A/s
ARC5A Ramp Rate = 9.961 A/s
ARC7A Ramp Rate = 10.222 A/s
ARC9A Ramp Rate = 9.370 A/s
RSEP9A Ramp Rate = 5.026 A/s
Health check reported no power on C, but seems intermittent
C laser made (almost?) no power during the TMG test this morning. But there's no indication of it showing a problem afterwards; Ops kept using the laser successfully.
Causes to rule out:
1. No FSD trip
2. Amplifier output power fine
3. PSS shutters and fast MPS shutter read back as open
Not sure about the cause yet, will keep looking.
Arc 9 brought back up
Box Supplies Were Cycled
The following box supplies were CYCLED by version 2-16 of the Box Supply Cycling Script:
ARC1A Ramp Rate = 8.127 A/s
ARC3A Ramp Rate = 9.725 A/s
ARC5A Ramp Rate = 10.192 A/s
ARC7A Ramp Rate = 9.973 A/s
ARC9A Ramp Rate = 9.370 A/s
RSEP9A Ramp Rate = 9.373 A/s










