Aggregator
FudgeIt
FudgeIt
ITV2L10 viewer not that viewable
Beam into 2L
Got through 1R with a combination of shunt and corrector steering. We didn't want to park beam in the linac, so we found a good-enough solution just until we get to to the viewer at the end and can phase up the cavities that are on. The procedure called for using only MXJ1R04 and two vertical correctors but we found we weren't getting a flat enough launch to get us out of the first step of 1R (between MXI1R01 and MXJ1R04) that way, so we also used the 1R01 and 1R02 shunts.
We will *certainly* want to come back and revisit this once we're all the way down the linac.
Irregular 1L02 MO temp
Operator SIGN IN
Operator SIGN IN
Autolog save
"2 hr escalations made for VFV1L27 fault"
CREW CHIEF SIGN IN
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM
Date : 03-13-26
Time : 23:29:14
Day : Friday
Shift : Owl
Crew Chief : Howard
Program Deputy: Roblin
Team : D
Arm : Chaudhary
Designated SSO: Price
LERF Operator:
Operators : Price, Chaudhary
This stamp certifies that the above Crew Chief has read/reviewed/received the following:
Crew Chief Shift Log, 2026-03-13 SWING
Start of shift: Preparing to phase NL C100's
Follow-up Re: VFV1L27 fault (again)
Replaced fast valve control card with non-interlocked card and removed Fast Charge Module to prevent the fast valve from closing on phantom trips. (Approved by M. Drury) ABIL#9490
"Valve Open" and "Ready" status permits satisfied for FSD.
Hopefully this will prevent beam interruptions over the weekend.
Will perform more in-depth troubleshooting next week.










