Aggregator

Log Number: 4486281Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 16699Title:
Hall C configuration change

Summary:
Reconfiguring HMS and SHMS angle and quad setpoints.Duration:
36 minutes

Time Down:
11-Apr-2026 02:04

Time Up:

Log Number: 4486280Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 16699Title:
Hall C configuration change

Summary:
Reconfiguring HMS and SHMS angle and quad setpoints.Duration:
36 minutes

Time Down:
11-Apr-2026 02:04

Time Up:

Log Number: 4486278Logbook(s): 

• ELOG
• RFLOG

Entry Makers: kpriceBody: 

I don't think this is a new phenomenon, but perhaps worth noting. We're trying to understand why the discriminator value in this cavity (maybe other cavities in this zone?) seems to take so long to float back to zero when it trips into SEL, then again in the other direction when it switches into SELA. Plot shows the sinusoid we saw when we dropped the cavity for a POFF sweep and gave it time to walk itself back in.

Log Number: 4486277Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 16699Title:
Hall C configuration change

Summary:
Reconfiguring HMS and SHMS angle and quad setpoints.Duration:
10 minutes

Time Down:
11-Apr-2026 02:04

Time Up:

Log Number: 4486276Logbook(s): 

• ELOG

Body: Calibration ParametersHall:CTarget: Loop 3 4cmPass: 2Note: SHMS angle -10.67,current -396.1Calibrated On:2026-Mar-31 17:58Calibrated By: yoonFile:C-2026-03-31_1758_Loop_3_4cm_Pass-2.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)

Log Number: 4486275Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Masked Hall C Normal Target FSD

Log Number: 4486271Logbook(s): 

• DCLOG
• ELOG

Entry Makers: victorcBody: 

5 mismatches the past week. Could use a trim card swap at next opportunity.

NA01B07, channel 19, 10 Amp

Log Number: 4486265Logbook(s): 

• LERFLOG
• ELOG

Entry Makers: dchriBody: 

* Manual Entry due to not existing.

Log Number: 4486264Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Price
DATE:             04/11/2026
SHIFT:               Owl

The operator has read the following:

• ELOG
• PD Shift Plan
• Radiation Surveys for PSS Segments in Controlled Access
• PSS Log

Log Number: 4486262Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 16697Title:
B Beam Optics Unacceptable

Summary:
Transitioned from tuning downtime into program degraded since tuning efforts were halted at end of day shift.Duration:
33 hours 59 minutes

Log Number: 4486261Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Chaudhary
DATE:             04/11/2026
SHIFT:               Owl

The operator has read the following:

• ELOG
• PD Shift Plan
• Radiation Surveys for PSS Segments in Controlled Access
• PSS Log

Log Number: 4486254Logbook(s): 

• ELOG
• RFLOG

Entry Makers: dturnerBody: smartRAT V3-3 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 2026-04-03-2026-04-10"


Data directory: /cs/prohome/apps/s/smartRAT2/3-3/fileio/pca_data/output_cavityOutDet/calibrated_cavitylevel_centralize_tsfresh_minimal_gmespmes/whole/rcntnp/2026-04-03-2026-04-10/PCA/

Log Number: 4486255Logbook(s): 

• HCLOG
• ELOG

Entry Makers: alexsBody: 

Log Number: 4486253Logbook(s): 

• HCLOG
• ELOG

Entry Makers: alexsBody: 

Log Number: 4486252Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: UNMasked Hall C Normal Target FSD

Log Number: 4486251Logbook(s): 

• ELOG

Body: Calibration ParametersHall:CTarget: 4cm DummyPass: 2Note: SHMS angle -17.34,current -422.3Calibrated On:2026-Mar-30 23:40Calibrated By: yoonFile:C-2026-03-30_2340_4cm_Dummy_Pass-2.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)

Log Number: 4486250Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Masked Hall C Normal Target FSD

Log Number: 4486249Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Masked Hall C Normal Target FSD

Log Number: 4486238Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl632

Saved: jhoward 04-10-26 23:15:42 {A:i B:5 C:2 E:345 A=BS B=BS C=CW D=BS 0R08=4.05 No dumps in.

Log Number: 4486237Logbook(s): 

• ELOG
• LERFLOG

Body: 
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM

Date : 04-10-26
Time : 23:11:14
Day : Friday
Shift : Owl

Crew Chief : Howard
Program Deputy: Ogur
Team : D
Arm : Chaudhary
Designated SSO: Christian
LERF Operator:
Operators : Price, Chaudhary, Christian

This stamp certifies that the above Crew Chief has read/reviewed/received the following: