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eDT V2-41 Design Setpoints Download - Bringing triplet back on design
Scan of harp_tagger
2019 Run Conditions to the Rescue!
I found a period of time in 2019 where we had the same run configuration With D alone in the hall A slit. Their normal running condition was to close the hall A slit to 15.8. One can see a period where they accidentally sent beam to C without necking down the A slit and they got a very similar amount of beam into hall B (.2nA to B when sending at 5 uA to C), see fig 1 and figure 2 for their standard operating. Current stability to D at the time didn't seem too bad. So I put the slit to 15.7, which is much more closed than I tried yesterday, and success!
Scan of harp_2c21
Scan of harp_tagger
Scan of harp_2c21
QuickPic - MBC9A23H mismatch. Took setpoint and cycled
TAGGERB has been enabled in alarm handler
Hall B still unhappy with the amount of beam making it into the hall
With the upstream rates at near zero and the hall B slit closed, we still see very high amounts of CW beam into the hall (.2 nA). Hall B needs to protect their equipment, and beam cannot be on all of the time hall C is running. By design in our current pass configuration, beam is expected to go into hall B slit from the A' 250 MHz bucket. We do not have a solution to this without 5th pass vertical separation into the hall A dumplette available.
QuickPic - Hall B Tagger Degaussed
TAGGERB has been disabled in alarm handler
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Operator SIGN IN
"Degaussing xB Tagger"
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 2026-04-29-2026-05-06"
Data directory: /cs/prohome/apps/s/smartRAT2/3-4/fileio/pca_data/output_cavityOutDet/calibrated_cavitylevel_centralize_tsfresh_minimal_gmespmes/whole/rcntnp/2026-04-29-2026-05-06/PCA/
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CREW CHIEF SIGN IN
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM
Date : 05-06-26
Time : 23:44:43
Day : Wednesday
Shift : Owl
Crew Chief : Deir
Program Deputy: Sereno
Team : A
Arm : Samari
Designated SSO: Smith
LERF Operator:
Operators : Samari, Smith
This stamp certifies that the above Crew Chief has read/reviewed/received the following:
Crew Chief Shift Log, 2026-05-06 SWING
Start of shift: Inj/NL match in progress.










