Aggregator

Log Number: 4499868Logbook(s): 

• ELOG

Entry Makers: deirBody: 

Log Number: 4499867Logbook(s): 

• HDLOG
• ELOG

Entry Makers: msmithBody: 

Moving targets while they are down. Leaving Ion chambers as is until SSG comes in.

Log Number: 4499866Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 16924Title:
Hall D ion chamber counts suddenly jumped

Summary:
IICAD00 + IICAD00A (Left and Right Goni) readbacks jumped up 10k-60k very suddenly and tripped the beam.

Log Number: 4499864Logbook(s): 

• ELOG

Entry Makers: deirBody: 

Tripped on Hall D ion chambers. Could not clear FSD. Looking the myaplot, the readback for LGoni spiked up to 62k, and RGoni up to 12k. LGoni lowered to after about a minute.

Called the Hall. They were not doing anything, just taking data. Getting in touch with SSG On-call.

Log Number: 4499863Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Destination Masking to: HallB,HallC
User: samari

Log Number: 4499861Logbook(s): 

• HBLOG
• ELOG

Body: 

Comments

Log Number: 4499855Logbook(s): 

• ELOG

Entry Makers: deirBody: 

Log Number: 4499854Logbook(s): 

• HBLOG
• ELOG

Body: 

Comments

Log Number: 4499852Logbook(s): 

• ELOG

Entry Makers: deirBody: 

Beam was lost in the Hall B line after we had to cycle some correctors on the E101B12 rack. This was super puzzling as they were all pass 3 and higher correctors with the exception of 1S09V, an Arc1Orb lock corrector.

We found the 2C21H and 2C20H correctors railed. They started walking off with no beam in the machine. The only lock that was engaged at the time that would do this was OpsMatrix01, our go-to tagger lock.

Fig 1: No beam in the machine at all. IPM2C21A and 2C24A wiresums were reading 0, Hall B Beam Mode was 0. Bottom chart has the expression for the lock's "Enabled When" logic.

Log Number: 4499849Logbook(s): 

• HBLOG
• ELOG

Body: 

Comments

Log Number: 4499847Logbook(s): 

• HBLOG
• ELOG

Body: 

Comments

Log Number: 4499843Logbook(s): 

• HBLOG
• ELOG

Body: 

Comments

Log Number: 4499842Logbook(s): 

• HBLOG
• ELOG

Body: 

Comments

Log Number: 4499840Logbook(s): 

• HBLOG
• ELOG

Body: 

Comments

Log Number: 4499839Logbook(s): 

• HDLOG
• ELOG

Entry Makers: msmithBody: 

Log Number: 4499838Logbook(s): 

• ELOG

Body: Calibration ParametersHall:DTarget: 1.1x10-3 Al 100umPass: 5.5Note: Calibrated On:2026-May-02 07:48Calibrated By: msmithFile:D-2026-05-02_0748_1.1x10-3_Al_100um_Pass-5.5.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)East Wa

Log Number: 4499830Logbook(s): 

• ELOG

Entry Makers: samariBody: 

After cycling correctors and quads that mismatched in E101B12 when swapping the card for MQA7S07 (all > than pass 1 except for a lock corrector 1S09V), we are now losing beam somewhere upstream of the nA BPMs and viewers. very puzzling but we'll send tune to the tagger dump to find where the culprit is.

Log Number: 4499827Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 16923Title:
MQA7S07 Mismatch

Summary:
Not taking setpoint, attempting re-seat.Duration:
23 minutes

Time Down:
16-May-2026 00:37

Time Up:
16-May-2026 01:00

Log Number: 4499821Logbook(s): 

• ELOG

Entry Makers: samariBody: 

Not taking setpoint. Reseat didn't take, so card swapped. Took setpoint and cycled

Log Number: 4499817Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Smith
DATE:             05/16/2026
SHIFT:               Owl

The operator has read the following:

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