Aggregator
Contacted SRF on-call
RM05 nuetron probe dropped INJ+NL to Power
Downtime Incident CREATED: VIP1L06B tripping valves closed again
2 INJ+NL LIU A chain drops
QuickPic - xD radiator change from [JD70-107 55 um 45/135 deg] to [1.1x10e-3 Al 100 um] at 25 nA
iCalibrate: Hall D
"xD BNR for radiator change"
Operator SIGN IN
Operator SIGN IN
smartRAT Cavity Instability Detection Daily Report
To view waveforms from a timestamp:
ssh opsrfdaqnl1 "smartRAT -m DAQ -d /data/fast_daq/<timestamp>"
To view waveforms of the top 25 from this report:
ssh opsrfdaqnl1 "smartRAT_view_daily_top25 2026-05-18-2026-05-25"
Data directory: /cs/prohome/apps/s/smartRAT2/3-4/fileio/pca_data/output_cavityOutDet/calibrated_cavitylevel_centralize_tsfresh_minimal_gmespmes/whole/rcntnp/2026-05-18-2026-05-25/PCA/
Autolog save
CREW CHIEF SIGN IN
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM
Date : 05-25-26
Time : 23:41:05
Day : Monday
Shift : Owl
Crew Chief : Howard
Program Deputy: Saitiniyazi
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, 2026-05-25 SWING
Start of shift: Machine tuning/steering in progress.
Crew Chief Timesheet Summary: 25 May 2026 SWING
NL ODH Head (OMNL09) in Minor Alarm
BLM's in the early NL (mostly 1L08) & 1L08 NDX rates
Things are getting very tangled.
Between the high interception (suspect to be charging/discharging around/within the chopper)
And rise in BLM's in the early NL (1L08,9,10) around ~19:45 today
The North Linac service building RAD#5 alarm
all these things happening around/at the same time...
Also NL GP seems to be getting more and more slippy. But if I can simply adjust GP and bring down Upstream Halo's (and probably IDX 3S00 as well) then I'll take it as a god thing
Overall, something sad is happening in the north.
ILM1L08 (BLM constant Instent Latch Fault) + surrounding BLM's high
North Linac BLM activity is very jumpy compared to what we usually see. 1L08 seems to be in continuous fault with surrounding zones also riding high...
and we still have interception issues in the injector which are shaking everything every time we get a 'suspect' discharge
MQA9A19 mismatch
MBC4R06H TC swapped second time
I noticed while swapping this that the red light at CR32 was blinking on both the second card that had been placed into ch 17, and the third which I put in. I didnt swap out the first one so I'm not positive if it was blinking on that card also. None of the other cards in that bay (third bay down on rack NL01B02) had CR32 lit up.










