Aggregator

Log Number: 4368437Logbook(s): 

• ELOG

Entry Makers: beneschBody: 

I saw the rise in 2L22 in first figure and went looking for a source. The linked entry and 2L22 EMES seem to correlate.

Log Number: 4368435Logbook(s): 

• ELOG
• LERFLOG

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

Date : 05-01-25
Time : 15:32:53
Day : Thursday
Shift : Swing

Crew Chief : Forman
Program Deputy: Sereno
Team : F
Arm : Humphry
Designated SSO: Chaudhary
LERF Operator:
Operators : Humphry, Chaudhary

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

Log Number: 4368434Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Chaudhary
DATE:             05/01/2025
SHIFT:               Swing

The operator has read the following:

Log Number: 4368433Logbook(s): 

• ELOG

Body: INJECTOR=>GUN=>IDA0I04T has been disabled in alarm handler

Injector work in progress

Log Number: 4368432Logbook(s): 

• ELOG

Body: INJECTOR=>GUN=>ISL0I04DT has been disabled in alarm handler

Injector work in progress

Log Number: 4368429Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 14018Title:
Injector setup after chopper repair

Summary:
Injector checks/setup after chopper repairDuration:
1 minute

Time Down:
01-May-2025 16:12

Time Up:

Log Number: 4368427Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 14017Title:
Injector Shift

Summary:
Large shift in injector 0R region. Injector expert (who was luckily in the room at the time) is investigating.

Log Number: 4368420Logbook(s): 

• ELOG

Entry Makers: bjacobBody: 

I didn't see HV status on the edm screen flicker at all (Fig 2) and the corresponding PV also didn't indicate a change (Fig 3). I know this is an on-going issue. The expert asked for this additional information.

Log Number: 4368418Logbook(s): 

• GTSLOG
• LERFLOG
• CLOG
• ELOG
• SRFLOG

Body: 

(A Duzik posting)
LERF Vault is now ODH2 for J28 warmup

Log Number: 4368409Logbook(s): 

• ELOG

Entry Makers: eformanBody: 

Log Number: 4368407Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: Destination Masking to: Injector
User: dchri

The following PVs failed to write:
ISD3H003DEF
ISD3H003L
ISD3H004DEF
ISD3H004L

Log Number: 4368405Logbook(s): 

• GTSLOG
• LERFLOG
• CLOG
• ELOG
• SRFLOG

Body: 

(A Duzik posting)
Warming up J28 cryomodule after successful unit test and detuning.

Log Number: 4368406Logbook(s): 

• ELOG

Entry Makers: dchriBody: 

(Fig. 1) Temps begin getting unusually low unusually fast in chopper 1 & 2

(Fig. 2) ~1 hour later, Temps begin to rise a little bit, ~20min later chopper 1Y GMES becomes unstable

Log Number: 4368403Logbook(s): 

• ELOG

Tags: 

• ShiftSummary

Body:  CEBAF SHIFT LOG Shift Summary

Start of shift: B5: 325nA on D2;

Log Number: 4368396Logbook(s): 

• ELOG

Tags: 

• BeamAccounting

Body:  Accelerator PHYSICS STUDIES RESTORE ACC DOWN OFF (SAM) Planned 8 0 0

Log Number: 4368392Logbook(s): 

• ELOG

Body: 

Log Number: 4368391Logbook(s): 

• ELOG

Body: 

Building's unit broken. Temporary unit insufficient.... but ambient temperatures should be dropping soon and be lower for the next week. Hopefully the replacement unit will be installed by then.

Channels: ac:98_PC01_AC1_SPCTEMP1, ac:98_PC01_AC1_SPCTEMP2, ac:98_PC01_AC2_SPCTEMP1, ac:98_PC01_AC2_SPCTEMP2, 82, 84

Log Number: 4368378Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl02
Data from: /usr/opdata/burt/allsnap/04-30-25_12:12:01
Restored file: /tmp/05-01-25_14:40:41.snap

Log Number: 4368373Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl02
Data from: /usr/opdata/burt/allsnap/04-30-25_12:12:01
Restored file: /tmp/05-01-25_14:38:04.snap

Log Number: 4368372Logbook(s): 

• ELOG

Body: IDDescriptionPeriodCause 14017Title:
Injector Shift

Summary:
Large shift in injector 0R region. Injector expert (who was luckily in the room at the time) is investigating.