Aggregator

COMMENT ON Investigate IPM5C11A Heater

23 hours 1 minute ago
Log Number: 4492151Logbook(s): Body: 

No further regulation issues have been noted. However, it was found that there are some comm issues. It was decided while hall D reconfigures to use their installations including IPM5C11A to try and iron out the lack of alarm propagation. We will be powering the units off and on and potentially disconnecting their comm cables. As such some alarms are to be expected. Prior to any changes Mcc will be notified and coordinated with.

sawyer

North Linac Level faults, 1L18 and 1L20

23 hours 13 minutes ago
Log Number: 4492148Logbook(s): Entry Makers: nortonBody: 

The superconducting level measurements for 1L18 and 1L20 froze and stopped reading correctly.
1L18 froze at 1449 on 4-23
1L20 froze at 0736 on 4-25

Power cycling the AMI-1700 level monitor units restored functionality. 1L18 had in fact emptied to 33%, while 1L20 had overfilled to ~96%.

Our investigation into this continues.

norton

1L20 Liquid level

23 hours 22 minutes ago
Log Number: 4492144Logbook(s): Entry Makers: janakBody: 

Liquid level increased and caused FSD trip. Zone is GSET 0.
Masking P1s.
1L18 Liquid level dropped concurrently, that is also GSET 0 and will be masked.

janak

Operator SIGN IN

23 hours 52 minutes ago
Log Number: 4492133Logbook(s): Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Janak
DATE:             04/27/2026
SHIFT:               Day

The operator has read the following:
  • ELOG
  • PD Shift Plan
  • Radiation Surveys for PSS Segments in Controlled Access
  • PSS Log
janak

Operator SIGN IN

23 hours 53 minutes ago
Log Number: 4492132Logbook(s): Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Blackshaw
DATE:             04/27/2026
SHIFT:               Day

The operator has read the following:
  • ELOG
  • PD Shift Plan
  • Radiation Surveys for PSS Segments in Controlled Access
  • PSS Log
bjacob

OPS walks AM ***Note

1 day ago
Log Number: 4492126Logbook(s): Entry Makers: BARBOURJZLBody: 

Changed guard vac. #2, CHL2 2K DP and HDR #2 filters. ***HDR water flow meter is leaking***. Need more cart. filters for CHL2 2K DP down stairs.

cryo

SLI3C with different slit settings

1 day 1 hour ago
Log Number: 4492108Logbook(s): Body: Image captions have the different settings and are as follows:
slit position / integration time/ gain/ gamma/ beam current

Camera ID: [ id = SLI3C, pv = SLI3C:image1:, name = 3C12 SLI, connection = epics, url = http://opscam1:8081/SLMINJMJPG1.mjpg ]
alarms

CREW CHIEF SIGN IN

1 day 1 hour ago
Log Number: 4492107Logbook(s): Body: 
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM

Date : 04-27-26
Time : 07:20:15
Day : Monday
Shift : Day

Crew Chief : Humphry
Program Deputy: Sereno
Team : E
Arm : RadCon
Designated SSO: Janak
LERF Operator:
Operators : Blackshaw, Janak

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

Shift Information

Shift Day
CEBAF Program
MCC Crew Chief Blackshaw
MCC Operators Humphry, Janak, Schoene
Program Deputy Sereno
Announcements

Access Status

Recent PSS History

recent pss history graph