Aggregator

Log Number: 4472999Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

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

Log Number: 4472997Logbook(s): 

• ELOG

Entry Makers: mockBody: 

A little bit late of an entry. Turned to power permit at 13:00.

Log Number: 4472996Logbook(s): 

• CLOG
• ELOG
• SRFLOG

Entry Makers: michaelmBody: 

For now, it is what it is - but here's the list to correct when it's opportune.

Log Number: 4472993Logbook(s): 

• ELOG

Entry Makers: dthomasBody: 

Log Number: 4472991Logbook(s): 

• ELOG

Body: 

Task approved work supervisor.
Pre job brief completed.

Log Number: 4472990Logbook(s): 

• ELOG

Body: 

1L10-8 is ready for FE test

Log Number: 4472989Logbook(s): 

• ELOG

Entry Makers: dthomasBody: 

Log Number: 4472987Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: RF was turned on in:
R27
R29
R2A
R2B
R2C
R2D
R2F
R2H
R2I
R2K

Log Number: 4472985Logbook(s): 

• ELOG

Body: 

25A girder assembly. Pinpointed a small 8 range leak in the new topside isolation valve bonnet seal. We replaced the valve assembly with a standard all metal 2 3/4" right angle valve. Leak test was good after replacing valve. We'll do a final girder assembly leak check tomorrow morning before activating the Neg pump.

26A girder assembly. Neg pump activation completed. All metal gate valve is open. VIP2L26A currently on a local pig power supply until tomorrow. Vacuum pump and clean room removed from area.

Log Number: 4472984Logbook(s): 

• ELOG
• INCLOG

Body: 

02/25/2026 BPM Work:
SEE - IPM2L26 - BPM cables replaced and system tested - Ready for Beam

SL25 girder still has a clean room in place. Will need to wait until that is removed and access is available.

Log Number: 4472983Logbook(s): 

• ELOG
• SRFLOG

Body: 

All of the C100 zone DecaRad screens have a 3 hour Auto-off feature for the G-M tube bias voltage.
For the DecaRads on the Digi PortServers in zones 02-21, the timer duration is selectable (1-25) with a default of 3 hours.
Prior to starting an FE run, it would be best to cycle the HV button, if already on from previous testing.

This change was implemented to prevent burning out all ten DecaRad head$ shortly after commissioning and plasma testing, when nearby gradients are turned up and the G-M tubes are flooded with FE.

Log Number: 4472982Logbook(s): 

• ELOG

Body: 

Good morning VDP1L27 NEG Activation> VIP1L27 B, C, D Off @ 10:00 am; Full Activation of NEG's Start @ 10:00 am, Stop @ 11:30 am. VIP1L27 B, C, D Start On @ 12:15pm, Turbo Pump Cart will stay attached to VDPVRV1L27 until next opportunistic time to remove + VBV1L27A and VBV1L27B 24 Vdc Connector's will also be reset on VBV's at that time.

Log Number: 4472981Logbook(s): 

• ELOG

Entry Makers: mockBody: 

Spoke with Vacuum group. Recieved the OK to open these valves back up after the VDP1L27 work was finished for the day.

Log Number: 4472977Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: RF was turned on in:
R12
R14
R15
R17
R18
R19
R1A
R1B
R1D
R1F
R1G
R1H
R1I
R1K
R1M
R1N

Log Number: 4472978Logbook(s): 

• ELOG

Entry Makers: mockBody: 

Set for beam to the ILD.
Informed RF group they are good to start working in the NL.

Log Number: 4472975Logbook(s): 

• ELOG
• LERFLOG

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

Date : 02-25-26
Time : 12:08:24
Day : Wednesday
Shift : Day

Crew Chief : Mock
Program Deputy: Schoene
Team : B
Arm : RADCON
Designated SSO: Thomas
LERF Operator:
Operators : Thomas

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

Log Number: 4472971Logbook(s): 

• ELOG

Body: 

Please submit a service now request for the hostname and ip address for the Gamma controller.
https://jlab.servicenowservices.com
For Category select "Accelerator Computing Environment (ACE) and subcategory IP Address request.

The one you recently installed in the UITF is named spceitfgamma1, can we name this one spcein01gamma1?

You will also need to use the following form to submit the request for the software/EPICS controls.
https://ace.jlab.org/apps/software-request/

Once this is done we can get it connected to the network.

Log Number: 4472973Logbook(s): 

• POLOG
• ELOG

Entry Makers: suleimanBody: 

1. If we could the heart beat to blink - easier to recognize that the communication is alive.

2. The setting in Figure 2 should be in ioc save/restore. Now, all these come back zeros after ioc reboot.

Log Number: 4472970Logbook(s): 

• ELOG

Body: 

Software has changed the TAG5C power supply EPCIS screen to support unipolar supply operation. The supply has been successfully hysteresis cycled multiple times. This completes this task in its entirety.

Log Number: 4472967Logbook(s): 

• ELOG
• SRFLOG

Entry Makers: michaelmBody: 

For later reference