Aggregator
NL Full Survey
HYST AREA 7-0 Cycles Magnets
HYST AREA Version 7-0 has FAILED to cycle:
MBC3S02V -- NL27B20 -- nl3mag -- Failed to set after 2 cycle attempts
MBC7S00H -- NL27B20 -- nl3mag -- Failed to set after 2 cycle attempts
HYST AREA Version 7-0 has successfully cycled the following:
MQA3S03
MBC3S03H
MBC5S03H
MBC7S02H
MBC7S02V
MBT1S02H
MBT1S02V
MQA3S02
MBC3S02H
MBC3S02V
MBC5S02H
MQA5S01
MBC5S01H
MBC5S01V
MQA7S01
MBC7S00H
MBC7S01V
Total Time: 1.983 mins
COMPLETED CHL Control Room Fiber
Follow-up Re: Follow-up Re: ACC Alarm Handler - ACS HCO complete
Plan for the day...
Yesterday Swing we had a third trip of the gun HVPS within a week, so we asked the crew to keep the gun HV off and close the gun valve, thanks. After today's 8am meeting Carlos, Marcy, Mamun, Jay, Mike, Riad and I met around the table, agreed on a plan today to understand the root cause and if the HV chamber is still vacuum tight to bring it back on later today for more diagnosing.
In broad strokes, we'll do these things in order, stopping or rescoping as we move forward. We'll use ePAS and work documents where needed.
1.
HYST AREA 7-0 Cycles Magnets
HYST AREA Version 7-0 has FAILED to cycle:
MQB2L20 -- SL19B09 -- sl6mag -- Failed to set after 2 cycle attempts
HYST AREA Version 7-0 has successfully cycled the following:
MQB2L20
MQB2L21
MQB2L17
MQB2L18
MQB2L19
MQB2L14
MQB2L15
MQB2L16
Total Time: 1.217 mins
Pucks in CEBAF HV and Prep Chambers
Puck #3 (SLSP-5247-4) is inside the gun.
Storage Manipulator #1 (close to HV Chamber): empty.
Storage Manipulator #2 (farther from HV Chamber):
1. (farther out) Puck #10 (SLSP-5247-4).
2. Puck #31 (SLSP-75104-1).
3. ME Puck (farther in, closer to center of chamber).
iocsoftmdaq1 restored
RF On/Off turned HV Off
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 = 7.400 A/s
ARC2A Ramp Rate = 6.339 A/s
ARC3A Ramp Rate = 9.294 A/s
ARC4A Ramp Rate = 10.144 A/s
ARC5A Ramp Rate = 9.307 A/s
ARC6A Ramp Rate = 8.835 A/s
ARC8A Ramp Rate = 10.637 A/s
ARC9A Ramp Rate = 8.864 A/s
ARCAA Ramp Rate = 10.852 A/s
DOG1E Ramp Rate = 2.750 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 = 10.544 A/s
RSEP9A
iocctarg restored
iocsl25rffcc7 restored
iocsl25rffcc6 restored
iocsl25rffcc2 restored
The following cavities have been GSET 0: 1L15-2
Program Deputy Summary, presented 2026-03-06
Operator SIGN IN
Operator SIGN IN
Follow-up Re: FE Onset Measurements for 1L26
We will have to look at the detailed plots with appropriate calibration compensation, but these data are consistent with the data taken last summer (see the attached .pdf). I agree that it would not be unreasonable to do 5 ms pulse processing on the cavities with FE onsets less than 13 MV/m that also did not make it out to 19 MV/m quench fields.










