Aggregator

CREW CHIEF SIGN IN

13 hours 25 minutes ago
Log Number: 4473019Logbook(s): 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:
lrichard

COMMENT ON Measure Real-Time Helicity Pickup from JLAB RTP HV Driver

13 hours 28 minutes ago
Log Number: 4473018Logbook(s): 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.

suleiman

Turned OFF the IAs

13 hours 50 minutes ago
Log Number: 4473014Logbook(s): 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.

suleiman

The following cavities have been unbypassed: 2L13-5

14 hours 21 minutes ago
Log Number: 4473007Logbook(s): Tags: 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

evonda

The following cavities have been unbypassed: 2L13-1

14 hours 41 minutes ago
Log Number: 4472999Logbook(s): Tags: 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

evonda

Shift Information

Shift Owl
CEBAF Program
MCC Crew Chief Deir
MCC Operators Smith
Program Deputy Schoene
Announcements

Access Status

Recent PSS History

recent pss history graph