Aggregator

2019 Run Conditions to the Rescue!

2 days ago
Log Number: 4495872Logbook(s): Entry Makers: samariBody: 

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!

samari

Hall B still unhappy with the amount of beam making it into the hall

2 days 2 hours ago
Log Number: 4495844Logbook(s): Entry Makers: samariBody: 

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.

samari

Operator SIGN IN

2 days 3 hours ago
Log Number: 4495830Logbook(s): Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Samari
DATE:             05/07/2026
SHIFT:               Owl

The operator has read the following:
  • ELOG
  • PD Shift Plan
  • Radiation Surveys for PSS Segments in Controlled Access
  • PSS Log
samari

Operator SIGN IN

2 days 3 hours ago
Log Number: 4495829Logbook(s): Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Smith
DATE:             05/06/2026
SHIFT:               Owl

The operator has read the following:
  • ELOG
  • PD Shift Plan
  • Radiation Surveys for PSS Segments in Controlled Access
  • PSS Log
msmith

smartRAT Cavity Instability Detection Daily Report

2 days 3 hours ago
Log Number: 4495823Logbook(s): Entry Makers: dturnerBody: smartRAT V3-4 on opsrfdaqnl1

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/
dturner

CREW CHIEF SIGN IN

2 days 3 hours ago
Log Number: 4495817Logbook(s): Body: 
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:
deir

Shift Information

Shift Owl
CEBAF Program
MCC Crew Chief Howard
MCC Operators Price, Chaudhary, Christian
Program Deputy Drury
Announcements

Access Status

Recent PSS History

recent pss history graph