Aggregator

Log Number: 4470905Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
1L18-6
Username: mock
Date/Time: 02-14-26_12:23:17
RF Status: Bad
Tuner Status: Good
Comment: Intermittent Watchdog fault inhibiting filaments.
Special Instructions:

Maintenance Tag: Component: Operator Entry - See SME

Log Number: 4470904Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
2L16-6
Username: mock
Date/Time: 02-14-26_11:30:05
RF Status: Bad
Tuner Status: Good
Comment: TDETA very unstable when loops are closed. Tunes itself off resonance. https://logbooks.jlab.org/entry/4470859
Special Instructions:

Maintenance Tag: Component: Operator Entry - See SME

Log Number: 4470901Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
2L09-6
Username: mock
Date/Time: 02-14-26_10:07:56
RF Status: Bad
Tuner Status: Good
Comment: CWWT at 0 V. Faults will not clear.
Special Instructions:

Maintenance Tag: Component: Operator Entry - See SME

Log Number: 4470900Logbook(s): 

• ELOG

Entry Makers: janakBody: 

3 Minute alarm for ESR. Guards contacted, they are aware and investigating.

Log Number: 4470899Logbook(s): 

• ELOG

Entry Makers: mockBody: 

Not within 10% tolerance.
Step changes in resistance are from current setpoint changes from 0.8 to 2.5 amps with a cycle (Fig. 3).

Log Number: 4470898Logbook(s): 

• ELOG

Body: INJECTOR=>BOXES=>PT0L02=>MPT0L02_alarm has been disabled in alarm handler

Ops PR:
https://logbooks.jlab.org/entry/4470897

Log Number: 4470897Logbook(s): 

• ELOG

Entry Makers: mockBody: 

Getting a non-communicating alarm on PT0L02 for 'Degrader ON'. All properties for the alarm are nan. Setpoint of PT0L02 is 0 amps and contactor OFF.

Log Number: 4470896Logbook(s): 

• ELOG

Body: INJECTOR=>LASER=>POCKELS_CELL=>IGL1I00OD16_8 has been disabled in alarm handler

Ops PR:
https://logbooks.jlab.org/entry/4469119
Working on updating alarm handler for new RTP cell.

Log Number: 4470895Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Janak
DATE:             02/14/2026
SHIFT:               Day

The operator has read the following:

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

Log Number: 4470892Logbook(s): 

• ELOG
• LERFLOG

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

Date : 02-14-26
Time : 07:17:22
Day : Saturday
Shift : Day

Crew Chief : Mock
Program Deputy: Buttles
Team : D
Arm : RADCON
Designated SSO: Janak
LERF Operator:
Operators : Janak

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

Log Number: 4470891Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl01
Data from: /usr/opdata/burt/allsnap/02-14-26_01:37:18
Restored file: /tmp/02-14-26_07:19:04.snap

Log Number: 4470890Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl01

Saved: dchri 02-14-26 07:18:45 {A:5 B:3 C:1 E:345 A=BS B=BS C=BS D=BS 0R08=0.00 0R08 dump in. Autosave prior to restore.

Log Number: 4470889Logbook(s): 

• POLOG
• ELOG

Body: Spot Location: (13250,19250), Charge: 1.7745090000000001

Laser Wavelength Atten Setting Laser Power Current HV PS Current QE PV Updated? Update Time/Reason Not Updated (nm) (W) (uA)</

Log Number: 4470887Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: System UN-Masking for: BeamLossMonitor
User: kprice
Areas: Injector

BeamLossMonitor Devices:
ILM0I07
ILM0L01A
ILM0L01B
ILM0L02
ILM2D00A
ILM2D00B
ILM0L04A
ILM0L04B
ILM0L05
ILM0L06A
ILM0L08
ILM0R01
ILM4D00
ILM0R03
ILM0R04
ILM0R06
ILM0R08
ILM0R09

Log Number: 4470886Logbook(s): 

• ELOG
• RFLOG

Entry Makers: kpriceBody: 

Delayed start on this one because I initialized Decarad prefixes for 2L23 at first. Then only got through measurements on one cavity before losing HV in the zone twice since bringing it up. Progress is progress!

Cavity 1 - Over 5000 counts on Decarad 09 at 13.4 MV/m.

Decarad HV has been turned off and GLOS for cavity 1 has been restored to initial value.

Log Number: 4470885Logbook(s): 

• ELOG

Body: 

Investigated OM03 monitor region with the help of OPS in Hall C and the area looked clear and event free. The adjacent OM02 monitor is reading fine, so we bypassed OM03 and will investigate it further on monday.

Log Number: 4470884Logbook(s): 

• ELOG

Entry Makers: kpriceBody: 

Faulty sensor OMHC03 has been bypassed with assistance from SSG. No adjacent head bypassed or reading abnormally.

Log Number: 4470883Logbook(s): 

• ELOG
• RFLOG

Entry Makers: kpriceBody: 

Cavity 8 is bypassed for want of a filament board, but still somehow tripped the zone out of HV twice on high cathode current. All bypass bits are set correctly and I don't see where the KCCU spikes could have come from since it was bypassed just before 02:00 with the script. Related to cavity history entry on 15 Jan (fig 2)/is this what the replacement filament board is meant to correct?

Log Number: 4470882Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl01
Data from: /usr/opdata/burt/allsnap/02-08-26_19:05:18
Restored file: /tmp/02-14-26_03:01:01.snap


Pickup w/ Inj restore (training)

Log Number: 4470881Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl01

Saved: dchri 02-14-26 03:00:47 {A:5 B:3 C:1 E:345 A=BS B=BS C=BS D=BS 0R08=0.00 0R08 dump in. Autosave prior to restore.