Aggregator

Log Number: 4473023Logbook(s): 

• ELOG

Body: 

ARC7 and RSEP8 have both passed hi-potting.

-Banks, O'Brien, Coleman

Log Number: 4473019Logbook(s): 

• ELOG
• LERFLOG

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

Date : 02-25-26
Time : 15:23:28
Day : Wednesday
Shift : Swing

Crew Chief : Richardson
Program Deputy: Schoene
Team : X
Arm : RADCON
Designated SSO: Schaumloffel
LERF Operator:
Operators : Schaumloffel

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

Log Number: 4473018Logbook(s): 

• ELOG
• POLOG

Body: 

Now, we tuned off the IA system, we have to update our plans:

1. With RTP ON and set to nominal HV, take a 4-hour parity data.
2. With RTP OFF - take a 4-hour parity data.
3. Ground PCBs to laser table and with RTP ON - take a 4-hour parity data.
4. With RTP ON, RTP electrically isolated, take 1 hour run with 0 reporting delay.

Log Number: 4473017Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: RF was turned on in:
R02
R03
R04

Log Number: 4473016Logbook(s): 

• POLOG
• ELOG

Body: 

Turned OFF the IAs:

https://logbooks.jlab.org/entry/4473014

Log Number: 4473014Logbook(s): 

• POLOG
• ELOG

Body: 

Took CA to injector laser table to turn off the IA system - see photo.

This is to help understand the results of the electrical pickup from the RTP system. We think the IA system is not properly electrically-isolated - see linked entry.

Log Number: 4473009Logbook(s): 

• ELOG
• POLOG

Tags: 

• Autolog

Body: 

Log Number: 4473007Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavities have been unbypassed:
2L13-5
Username: evonda
Date/Time: 02-25-26_14:29:57
RF Status: Good
Tuner Status: Good
Comment: Unbypassed - stepped on -100k - Needed to unbypass the cavity to see if issues still existed; upon turn on lowered the filament voltage and added Mod Anode voltage to stabilize the cavity.
Special Instructions:

Maintenance Tag: Component: Other

Log Number: 4473006Logbook(s): 

• ELOG

Body: 

Service now request is placed for ACE\IP address. Yes, we can name this one spcein01gamma1

Software request is placed for the software/EPICS controls.

Log Number: 4473005Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
1L21-5
Username: evonda
Date/Time: 02-25-26_14:25:51
RF Status: Good
Tuner Status: Good
Comment: Fixed the loose connection on the Mod Anode Board and now zone is able to go into HV successfully.
Special Instructions:

Maintenance Tag: Component: Other

Log Number: 4473004Logbook(s): 

• ELOG
• POLOG

Tags: 

• Autolog

Body: 

Log Number: 4473002Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: High Voltage was turned off for:
R02
R03
R04

Log Number: 4473001Logbook(s): 

• ELOG
• POLOG

Tags: 

• Autolog

Body: 

Log Number: 4473000Logbook(s): 

• ELOG
• POLOG

Tags: 

• Autolog

Body: 

Log Number: 4472999Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavities have been unbypassed:
2L13-1
Username: evonda
Date/Time: 02-25-26_14:09:29
RF Status: Good
Tuner Status: Good
Comment: Unbypassed - stepped on -100k - Needed to unbypass the cavity to see if filament issues still exist; Zone was able to go back into HV and RF without issue.
Special Instructions:

Maintenance Tag: Component: Other

Log Number: 4472997Logbook(s): 

• ELOG

Entry Makers: mockBody: 

A little bit late of an entry. Turned to power permit at 13:00.

Log Number: 4472996Logbook(s): 

• CLOG
• ELOG
• SRFLOG

Entry Makers: michaelmBody: 

For now, it is what it is - but here's the list to correct when it's opportune.

Log Number: 4472993Logbook(s): 

• ELOG

Entry Makers: dthomasBody: 

Log Number: 4472991Logbook(s): 

• ELOG

Body: 

Task approved work supervisor.
Pre job brief completed.

Log Number: 4472990Logbook(s): 

• ELOG

Body: 

1L10-8 is ready for FE test