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COMMENT ON MST magnet installation and related magnet work at 1L09,2L03, 2L25, 1L26
QuickPic - V. Vien set to -90 to soak
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0L06 energy measurement
Centered beam through the x-position as required. Tried sending to 4D, but couldn't find beam on the viewer. Did some vertical steering too. Turns out I just didn't lower the weaken the magnet enough to see it on the viewer.
Like swing had found, we are about 10 MeV short of MMS energy. I did phase on the spectrometer and found a bit of energy, but I was at a ever so slightly lower energy than what swing found. Probably user error.
Restoring to the previous all save, then we will let the Vertical Wien soak for the rest of the shift.
CIS Work Summary 02/03/2026
Laser Hut Temperature alarm
We have started to get constant alarms regarding the laser hut temperature. Every so ofter, the temp will read a spike that pushes it just over the alarm limit. The average temp is showing as slightly elevated, just in minor alarm at 29 degrees. The ~1 degree spikes don't seem real.
This was found last year too, and the discussion points to the same we found here.
For now we will bump up the alarm limit so the spikes don't trip over it as often, but can be reset to 30 if needed.
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Beam to ILD
Picked up from swing shifts hard work. Beam was stuck at the start of the chicane, with too low energy to make it through. I spent some time trying to find some more energy, but RF had been phased and there wasn't more to be gained that way. I then tried steering the 0L region some more, but that did not get me any further into the 0R region either.
since I could not find anymore energy, I started to adjust the 0R01 dipole to make it through at the lower energy, weakening all of the chicane dipoles while trying to keep things balanced as best as I could.
1L19 All cavities tripping on arc test faults
0L03-8 Quenching at 7.7
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Injector Set Up: FC2 - 0Rish
Piggybacking off of Jerone's setup from 1/31, we started working on getting A beam from FC2 to the ILD. Collinearity did not restore well, partly because phases downloaded from the allsave for the warm RF didn't take until one wiggled the slider, but even afterwards we struggled to get all four beams on top of one another. We decided to punt on optimizing collinearity and forge on with beam only from the reference laser.
Unfortunately, with a couple cavities missing in the pre-accelerator cryomodules, LEMi would only manage about 116 MeV.
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THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM
Date : 02-03-26
Time : 23:07:57
Day : Tuesday
Shift : Owl
Crew Chief : Deir
Program Deputy: Mock
Team : A
Arm : RADCON
Designated SSO: Howard
LERF Operator:
Operators : Howard
This stamp certifies that the above Crew Chief has read/reviewed/received the following:










