Aggregator

Log Number: 4499415Logbook(s): 

• ELOG

Entry Makers: bjacobBody: 

Log Number: 4499407Logbook(s): 

• HBLOG
• ELOG

Entry Makers: beneschBody: 

In Figure 1, brown, RATE03, is the upstream sum from the lower left box on figure 2. It is elevated by a factor of 200 when beam is in the tagger.
Green, RATE02, is downstream sum.
Red, RATE01, is midstream sum.

Note vertical axis is log in figures 1 and 3.

In figure 3 I annotated a few points on the midstream curve.

Log Number: 4499406Logbook(s): 

• ELOG

Tags: 

• MCC8am

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: CW beam to B/D.

Log Number: 4499401Logbook(s): 

• ELOG

Body: 

PTW-10739 at Planning Complete stage. Needs to be on-issue before beginning. PTW-2060 On-issue.

Once PTW-10739 is on-issue this task is approved to occur today.

Log Number: 4499400Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Janak
DATE:             05/15/2026
SHIFT:               Day

The operator has read the following:

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

Log Number: 4499397Logbook(s): 

• ELOG

Entry Makers: victorcBody: 

Log Number: 4499395Logbook(s): 

• ELOG
• HBLOG

Entry Makers: pasyukBody: 

current 5 nA
2C21A.X -1.0
2C21A.Y 0.3
upstream halo rate 3 on everage

Log Number: 4499386Logbook(s): 

• HCLOG
• ELOG

Entry Makers: dchriBody: 

Log Number: 4499384Logbook(s): 

• HCLOG
• ELOG

Entry Makers: dchriBody: 

Log Number: 4499377Logbook(s): 

• ELOG
• LERFLOG

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

Date : 05-15-26
Time : 07:37:32
Day : Friday
Shift : Day

Crew Chief : Blackshaw
Program Deputy: Drury
Team : E
Arm : Janak
Designated SSO: Schoene
LERF Operator:
Operators : Schoene, Janak

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

Log Number: 4499376Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Masked Hall C Normal Target FSD

Log Number: 4499375Logbook(s): 

• HCLOG
• ELOG

Entry Makers: dchriBody: 

After changing:
Target (Loop2 10cm) 7uA --> (Carbon Hole) 2uA
Raster size: width = 2.0 --> 4.0 by height = 2.0 --> 4.0

FIG.1,2,3
Hall C Orbit Lock TARGET position changed from 0.0 to 1.0

FIG.4,5
Hall C Orbit Lock TARGET position changed from 1.0 to 2.0

FIG.6,7
Hall C Orbit Lock TARGET position changed from 2.0 to 2.5

FIG.8,9
Hall C Orbit Lock TARGET position changed from 3.0 to 3.5

FIG.10,11
Raster Size Change 4x4 --> 2x2

FIG.12,13
Hall C Orbit Lock TARGET position (Y) changed from:
(3H07A.YPOS) -1.0 to -1.5
(3H07C.YPOS) -0.6 to -1.1

FIG.14,15
Hall C Orbit Lock TARGET position (Y) chan

Log Number: 4499372Logbook(s): 

• ELOG

Body: 

Temp dropped around 1:30 and was in a steady decline until Dave Gaskell power cycled it at ~6:30. Controller is recovering. Spare is ready should it decide to hard fault.

Log Number: 4499369Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 3.0.1 Target restore date was 2026-05-14 15:17:01 The output from the myRestore execution was as follows: iocsoftRadNDXSHMS A360_det@2026-05-14 15:17 10(10) restored A360_ndx@2026-05-14 15:17 5(5) restored Pause: 5 second(s) Execute: /cs/op/iocs/iocsoftRadNDXSHMS/initCalibrationConstants.csh SHMS (success) ---- calarr = Name Type DsFac gCc nCc INX3sH1 NeutronDetector 1.112 1.147E+12 1.191E+10 INX3sH2 NeutronDetector 1.089 1.1179E+12 1.167E+10 2 element(s) ---- num_calarr = 17 ---- netdstr = Controlled_by iocsoftRadNDXSHMS iocsoftRadN

Log Number: 4499368Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: CW to xBCD, but high halo rates in xB

Log Number: 4499365Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

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

Log Number: 4499349Logbook(s): 

• ELOG

Tags: 

• Readme

Body: [figure:1] Always check the Authorization web application for the latest status: JLab Authorization Manager

Log Number: 4499348Logbook(s): 

• ELOG

Body: 

Will JLab employees be doing the work or subcontractors? If JLab employees, need to the relevant PTW attached. If subcontractors, would like to see to the AHA attached.

Log Number: 4499347Logbook(s): 

• ELOG

Body: Faster Raster Mask State: (B MAGNETS MASKED) Fast Raster is initialized for 1.41893 GeV Max current is 60 uA Raster was last initialized on 14MAY26 18:25:34
Hall C Raster has been set to width = 2.0 by height = 2.0 Coil Pairs is 1

Log Number: 4499342Logbook(s): 

• ELOG

Tags: 

• Readme

Body: [figure:1] Always check the Authorization web application for the latest status: JLab Authorization Manager