Aggregator

Log Number: 4549878Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
Zone 1L14
Username: geesaman
Date/Time: 10-13-26_07:18:42
RF Status: Good
Comment: Replaced buffer cards with new version.
Special Instructions:

Maintenance Tag: Component: Buffer Card

Log Number: 4549877Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
Zone 1L12
Username: geesaman
Date/Time: 10-13-26_07:17:58
RF Status: Good
Comment: Replaced buffer cards with new version.
Special Instructions: , HPA breaker tripped

Maintenance Tag: Component: Buffer Card

Log Number: 4549876Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
Zone 1L11
Username: geesaman
Date/Time: 10-13-26_07:17:31
RF Status: Good
Comment: Replaced buffer cards with new version.
Special Instructions:

Maintenance Tag: Component: Buffer Card

Log Number: 4549875Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
Zone 1L06
Username: geesaman
Date/Time: 10-13-26_07:17:01
RF Status: Good
Comment: Replaced buffer cards with new version.
Special Instructions:

Maintenance Tag: Component: Buffer Card

Log Number: 4549874Logbook(s): 

• ELOG

Body: 

The buffer cards in 1L06, 1L11, 1L12, and 1L14 have been replaced with the new version.

Log Number: 4549873Logbook(s): 

• MOLLER
• POLOG
• ELOG

Body: 

Brian Bevins added moller-onl@adaq[1-3] and moller-onl@adaqeb[1-3] to the permitted list on the gateway.  
Kept apar@adaq[1-3] on the list.

Log Number: 4549872Logbook(s): 

• HDLOG
• ELOG

Body: 

Chilled Water Sys. - Filters & Detector's Chillers / PM's
Instrument Air Sys. - ePAS IC Approvals / PM's

Log Number: 4549871Logbook(s): 

• HALOG
• ELOG

Entry Makers: jonesBody: 

Found hose leak in MMA1H01 magnet. Closed the supply and return valves. Contacted Neil Wilson who put in a HALIST to replace the hose.
Replaced Moller power supply clamps on LCW hoses.

Log Number: 4549870Logbook(s): 

• POLOG
• ELOG

Entry Makers: mamunBody: 

Returned the gun to vacuum configuration after pumping down the Kr.
Photogun is back into vacuum configuration!

Log Number: 4549869Logbook(s): 

• ELOG
• LERFLOG

Body: 
THOMSAS JEFFERSON NATIONAL ACCELERATOR FACILITY
MACHINE CONTROL CENTER UNSTAFFED STAMP

Date : 10/13/2026
Time : 00:08

Crew Chief On-Call : Forman
Program Deputy : Mock

The MCC is unstaffed. The following satisfies AOD and LOD requirements to leave the control room unstaffed:

SSO Comments: PLC Error/Unknown states expected

Log Number: 4549868Logbook(s): 

• POLOG
• ELOG

Entry Makers: mamunBody: 

After observing no field emission activity at 220 kV for ~15 minutes, we ramped down the Gun HV to zero and turned off the HV supply.

Heading down to pump down the gun.

Log Number: 4549867Logbook(s): 

• POLOG
• ELOG

Entry Makers: mamunBody: 

We set Kr pressure at ~4.6E-7 Torr at pump cart gauge and observed onset of field emission at 214 kV, then we processed the gun at HV upto 230 kV. following this we lowered the HV to 225 kV, observed background noise level counts on decaRAD channels for over 15 min. Then brought it up to 230 kV again and observed 2-3 decaRAD count spikes per min as we stopped processing at 230 kVearlier. We then lowered the HV to 220 kV and during this soak we observed background noise level on all DecaRAD channels.

Log Number: 4549865Logbook(s): 

• POLOG
• ELOG

Entry Makers: mamunBody: 

Kr processing on going: field emission on set at ~214 kV.

Log Number: 4549864Logbook(s): 

• POLOG
• ELOG

Entry Makers: mamunBody: 

For HV Kr processing of gun, the leak valve is opened at 5 and 3/4 turn to set for ~4.6 E-7 Torr on Turbo cart gauge.

Log Number: 4549863Logbook(s): 

• POLOG
• ELOG

Entry Makers: mamunBody: 

Bake ion pump is turned off in prep of Gun HV Kr processing.

Log Number: 4549862Logbook(s): 

• POLOG
• ELOG

Entry Makers: mamunBody: 

Turned off the gun ion pump in prep of Kr processing.

Log Number: 4549861Logbook(s): 

• ELOG

Body: INJECTOR has been enabled in alarm handler

Monitoring for HV conditioning.

Log Number: 4549860Logbook(s): 

• POLOG
• ELOG

Entry Makers: mamunBody: 

We ramped up to 210 kV for HV vacuum conditioning and end up seeing field emission that was not going away at 210 kV. We then step by step lowered the HV and observed the field emission level correspondoingly lowered until it reached backgound noise level of 4-8 counts at 110 kV.
Next we will set Kr for processing the gun.

At the beginning of today's HV vacuum conditioning, the onset of vacuum desorption happened at ~162 kV. Over the HV vacuum conditioning, the gun tripped 3 times at 172, 183, and 185 kV respectively.

Log Number: 4549859Logbook(s): 

• ELOG

Tags: 

• Autolog
• MCC8am

Body:  */ ATLis Comments Posted 18:00 Sunday October 11 through 18:00 Monday October 12 AES DC Power Systems Perform HCO of Injector 10 Amp Trim Racks

2026-10-12 15:10 - Eric Diggs

Po

Log Number: 4549858Logbook(s): 

• ELOG
• SLOG

Tags: 

• MCC8am
• Software and Controls

Body: 

Installed and tested sync script for CHL screens on guard9
Helping Troubleshoot HV Read-back Issue
Addressing opsdata disk usage for waveForms and LabJack Data
RF 3.0 1L08 CED Updates