Aggregator

Log Number: 4543548Logbook(s): 

• ELOG

Body: 

I'll plan to remove the 2 DecaRad systems from 1L24 and 1L25 when the NL is accessible, put them in crates, and then stage them in the NL labyrinth. Unless both linacs are in RA and I can open the arc gate, the above-ground move from NL to SL will require RadCon support.

Log Number: 4543547Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Destination Masking to: Inj500KeV
User: chumphry

Log Number: 4543544Logbook(s): 

• ELOG

Entry Makers: samariBody: 

Log Number: 4543543Logbook(s): 

• ELOG

Body: 

Updated to reflect zone change to 1L09.

Log Number: 4543541Logbook(s): 

• ELOG

Body: 

PTW-7911 verified still on-issue. SL RF Operations re-authorized to allow for Aug2026 testing specified in previous comment. Task re-approved for Aug 2026, SL modules only. Please continue to update this ATLis as work progresses. Please close this ATLis at the conclusion of the Aug 2026 measurements.

Log Number: 4543540Logbook(s): 

• ELOG

Body: 

From Tom Powers:
Aug 2026 Measure the following zones 2L03, 2L05, 2L22, 2L23, 2L24, 2L25 and 2L26 all cavities that can be operated. Take cavities up to quench and start FE onset measurements at fields just below quench. Cavities may also be limited by waveguide vacuum or window heating, in which case start FE measurements just below those limits.

Log Number: 4543539Logbook(s): 

• ELOG

Body: 

https://tasklists.jlab.org/atlis/tasks/118604 supercedes, covers relevant hazards re-locating DecaRads

Log Number: 4543538Logbook(s): 

• ELOG

Tags: 

• Readme

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

Log Number: 4543537Logbook(s): 

• ELOG

Entry Makers: samariBody: 

Log Number: 4543536Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Samari
DATE:             08/18/2026
SHIFT:               Day

The operator has read the following:

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

Log Number: 4543532Logbook(s): 

• HDLOG
• ELOG
• RADLOG

Entry Makers: chumphry

Log Number: 4543531Logbook(s): 

• HBLOG
• ELOG
• RADLOG

Entry Makers: chumphryBody: 

Log Number: 4543530Logbook(s): 

• BTLOG
• ELOG
• POLOG

Body: 

Log Number: 4543527Logbook(s): 

• ELOG

Body: The following Bypassed Interlock had it's Expected Removal Date changed in the Accelerator Bypassed-Interlocks Log (ABIL) Previous Expected Removal Date: 11 Aug 2026 New Expected Removal Date: 31 Dec 2026 Who made the change: krylach Justification for the change: Still in progress

Log Number: 4543526Logbook(s): 

• ELOG

Body: 

Aug 2026 Measure the following zones 2L03, 2L05, 2L22, 2L23, 2L24, 2L25 and 2L26 all cavities that can be operated. Take cavities up to quench and start FE onset measurements at fields just below quench. Cavities may also be limited by waveguide vacuum or window heating, in which case start FE measurements just below those limits

Log Number: 4543524Logbook(s): 

• ELOG

Entry Makers: bjacobBody: 

Crew Chief and 2 operators stamped in and on-site.

Log Number: 4543523Logbook(s): 

• HDLOG
• ELOG
• RADLOG

Entry Makers: chumphry

Log Number: 4543522Logbook(s): 

• HDLOG
• ELOG
• RADLOG

Entry Makers: chumphry

Log Number: 4543521Logbook(s): 

• ELOG
• DCLOG

Body: 

MMA1H01 was ramped to 550A; diagnostic data was taken for review. This is the maximum output that the supply can produce with the limited AC input breaker of 225A. While running at 550A, the AC draw on the three phases is ~223A. This completes the work for MMA1H01

Log Number: 4543520Logbook(s): 

• ELOG
• LERFLOG

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

Date : 08-18-26
Time : 08:27:57
Day : Tuesday
Shift : Day

Crew Chief : Blackshaw
Program Deputy: Park
Team : E
Arm : RadCon
Designated SSO: Humphry
LERF Operator:
Operators : Humphry, Janak

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