Aggregator

Log Number: 4500078Logbook(s): 

• HCLOG
• ELOG

Entry Makers: bbarkerBody: 

Log Number: 4500076Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Anthony
DATE:             05/16/2026
SHIFT:               Swing

The operator has read the following:

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

Log Number: 4500070Logbook(s): 

• ELOG
• LERFLOG

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

Date : 05-16-26
Time : 15:36:28
Day : Saturday
Shift : Swing

Crew Chief : Richardson
Program Deputy: Drury
Team : C
Arm : Anthony
Designated SSO: Shriner
LERF Operator:
Operators : Anthony, Shenenberger, Shriner

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

Log Number: 4500067Logbook(s): 

• ELOG

Body: Calibration ParametersHall:CTarget: 10cm_DummyPass: 2Note: File generated from archiverCalibrated On:2026-May-03 00:00Calibrated By: deirFile:C-2026-05-03_0000_10cm_Dummy_Pass-2_archiver_generated.hcdIon ChamberExisting Setpoing (rads/hr)New Setpoint (rads/hr)

Log Number: 4500066Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Masked Hall C Normal Target FSD

Log Number: 4500065Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Masked Hall C Normal Target FSD

Log Number: 4500064Logbook(s): 

• ELOG

Entry Makers: dthomas

Log Number: 4500062Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: CW to C and D.

Log Number: 4500061Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

Body:  Accelerator PHYSICS STUDIES RESTORE ACC DOWN OFF (SAM) Planned 8 0 0

Log Number: 4500060Logbook(s): 

• ELOG

Entry Makers: dthomasBody: 

Log Number: 4500052Logbook(s): 

• HBLOG
• ELOG

Entry Makers: dthomasBody: 

Log Number: 4500051Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 16926Title:
Awaiting Target Expert

Summary:
Hall B wants to test beam on one of their targets to monitor halo rates and are awaiting target expert's opinion on previous harp scans.Duration:
24 mi

Log Number: 4500047Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 16926Title:
Awaiting Target Expert

Summary:
Hall B wants to test beam on one of their targets to monitor halo rates and are awaiting target expert's opinion on previous harp scans.Duration:
10 mi

Log Number: 4500045Logbook(s): 

• ELOG

Entry Makers: bjacobBody: 

I walked over to the counting house to talk to the folks over there. They are cautiously optimistic about the most recent harp scans. Currently they are waiting for the target expert to arrive before they move to testing beam on the actual target. Right now, we in the control room are waiting with bated breath.

Log Number: 4500044Logbook(s): 

• ELOG

Entry Makers: dthomasBody: 

Log Number: 4500043Logbook(s): 

• HBLOG
• ELOG

Body: 

After some check we conclude that the tails at the 2H00 positions sre real and not artefacts coming from downstream.
The sigma of the X an Y areless tha 0.1 mm which is very nice.
The X profile on the bottom including tail is about 1.5 mm. Outside of this window we see single counts. Pick maximum is 200 kHz.
This will go throuhg the 2 mm hole of the target.
Y profile has a longer tail. Looking on the bottom (single counts) the beam spot spans 3 mm. The tail will not pass 2 mm hole.
The rate in the tail outside of the 1.5 mm is under 100 counts. Compare with 24 kHz in peak.

Log Number: 4500037Logbook(s): 

• HBLOG
• ELOG

Body: 

scan at 5 nA

Log Number: 4500036Logbook(s): 

• HBLOG
• ELOG

Body: 

previous entry was the same scan butfitting with midstream counter

Log Number: 4500035Logbook(s): 

• HBLOG
• ELOG

Body: 

Comments

Log Number: 4500027Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 16925Title:
2H00A Harp Motion Issues

Summary:
Hall Called to report the 2H00A harp was continuing to insert when it should've retracted.Duration:
9 hours 16 minutes

Time Down: