Aggregator

Log Number: 4494197Logbook(s): 

• ELOG
• LERFLOG

Body: The following entry was placed in the Accelerator Bypassed-Interlocks Log (ABIL) Device: OM216 Function: Oxygen Monitor Location: LERF User Lab #4 Purpose: Bypassed for alarms until replaced/recalibrated. Adjacent head OM215 still functional Exp.

Log Number: 4494193Logbook(s): 

• HDLOG
• ELOG

Entry Makers: alexsBody: 

Hall D's positions have been very swingy since bringing them up, and it appears the PID orbit locks are partially to blame. When the PID locks are engaged, almost every change to the associated magnet has been the maximum allowed value, 150 BdL, suggesting the PID parameters are not set to helpful values. I am also no expert on these loops, but for the time being, changing the max change from 150 to 30 has reduced the amplitude of the X position oscillations.

Log Number: 4494190Logbook(s): 

• ELOG

Entry Makers: alexsBody: 

Received an ODH alarm that appeared to be coming from the LERF, but could not tell remotely due to no local readbacks. Contacted Software and SSG, and both are aware of the issue and confirmed that even though we don't have readbacks on EPICS, an alarm will propagate to the PSS panel if one of the heads goes into alarm (as it just did). Locally inspected the ODH racks in the LERF and determined the culprit to be OM216 reading high. The adjacent OM215 head is still functioning (figure 2, old picture), so bypassed OM216.

Log Number: 4494180Logbook(s): 

• HDLOG
• ELOG

Entry Makers: alexsBody: 

Log Number: 4494179Logbook(s): 

• ELOG

Body: Calibration ParametersHall:DTarget: JD70-107 55um 45/135 degPass: 5.5Note: Calibrated On:2026-May-03 18:47Calibrated By: alexsFile:D-2026-05-03_1847_JD70-107_55um_45_135_deg_Pass-5.5.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)

Log Number: 4494178Logbook(s): 

• HDLOG
• ELOG

Entry Makers: alexsBody: 

Log Number: 4494175Logbook(s): 

• ELOG

Body: Calibration ParametersHall:DTarget:JD70-107 55um 45/135 degPass:5.5Note:Calibrated On:2026-May-03 18:47Calibrated By:alexsFile:D-2026-05-03_1847_JD70-107_55um_45_135_deg_Pass-5.5.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)

Log Number: 4494174Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 16848Title:
MQA8R06A mismatch; not taking setpoint

Summary:
After several mismatches in the past week, the trim decided not to take setpoint. Trim was swapped, tooks setpoint, and cycled.

Log Number: 4494173Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 16848Title:
MQA8R06A mismatch; not taking setpoint

Summary:
After several mismatches in the past week, the trim decided not to take setpoint. Trim was swapped, tooks setpoint, and cycled.

Log Number: 4494169Logbook(s): 

• ELOG

Entry Makers: lrichardBody: 

Done

Log Number: 4494166Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl02

Saved: alexs 05-03-26 18:18:17 {A:i B:5 C:2 E:345 A=BS B=CW C=CW D=CW 0R08=7.11 No dumps in.

Log Number: 4494161Logbook(s): 

• ELOG

Entry Makers: lrichardBody: 

Requested IC calibration on JD70-107 55um 45/135 deg. Runners responding to ODH at LERF. Letting the hall remove the collimator for now until runners return.

Log Number: 4494158Logbook(s): 

• ELOG

Tags: 

• Autolog
• MCC8am

Body:  */ ATLis Comments Posted 18:00 Saturday May 02 through 18:00 Sunday May 03 AES DC power Systems Troubleshoot BE3H05 Box Power Supply

2026-05-02 22:05 - Michael Peirce

Disconnec

Log Number: 4494153Logbook(s): 

• ELOG

Entry Makers: alexsBody: 

Contacting software on-call

Log Number: 4494145Logbook(s): 

• DCLOG
• ELOG

Entry Makers: alexsBody: 

Card swapped to took setpoint after frequent mismatches. Since last month, this magnet has had three trim swaps and one reseat. Leaving this PR open for SMEs to take a look at the rack itself when time permits.

Log Number: 4494141Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl05

Saved: lrichard 05-03-26 16:32:54 {A:i B:5 C:2 E:345 A=BS B=CW C=CW D=CW 0R08=6.90 No dumps in.

Log Number: 4494135Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Shenenberger
DATE:             05/03/2026
SHIFT:               Swing

The operator has read the following:

Log Number: 4494131Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Anthony
DATE:             05/03/2026
SHIFT:               Swing

The operator has read the following:

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

Log Number: 4494121Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl05

Saved: lrichard 05-03-26 15:43:49 {A:i B:5 C:2 E:345 A=BS B=BS C=CW D=CW 0R08=7.05 No dumps in.

Log Number: 4494119Logbook(s): 

• ELOG
• LERFLOG

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

Date : 05-03-26
Time : 15:38:11
Day : Sunday
Shift : Swing

Crew Chief : Richardson
Program Deputy: Sereno
Team : X
Arm : Shenenberger
Designated SSO: Anthony
LERF Operator:
Operators : Anthony, Shenenberger

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