Aggregator

1L13 largely recovered

3 hours 42 minutes ago
Log Number: 4472095Logbook(s): Entry Makers: michaelmBody: 

30 WG vacuum pair still active; will let it pump down overnight and push further. Autorecover turned on for zone.

michaelm

Operator SIGN IN

3 hours 46 minutes ago
Log Number: 4472094Logbook(s): Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Schaumloffel
DATE:             02/19/2026
SHIFT:               Swing

The operator has read the following:
bschauml

Vacuum Group Summary 2026-02-19

4 hours 9 minutes ago
Log Number: 4472085Logbook(s): Body: 

2L03
- VIP2L03A reconnected to building power
- Valve air lines reconnected

2L25
- New V-blocks installed
- Cleanroom setup slated for tomorrow

MYBBS06
- First leak check passed
- Will pump with cart over weekend, get pressures lower for Monday final leak check and ion pump turn on

duzik

COMMENT ON C100-03R (2L25) SRF Cryomodule Commissioning

4 hours 21 minutes ago
Log Number: 4472082Logbook(s): Body: 

Completed the LLRF Pre-Commissioning for Cavities: 
We verified all interlock checks (ARC, window, vac, HE interlock faults)
and all passed without issue (Leo helped with the vacuum interlock tests)

We also put a small amount of forward power into each cavity in SEL
mode. 
We found each cavity to be off machine reference as follows: 
cavity 1:  230kHz,
 cavity 2: 255kHz,
 cavity 3: 186kHz,
cavity 4: 309kHz,
 cavity 5: 187kHz,
 cavity 6: 267kHz,
 cavity 7: 231kHz,
 cavity 8:272kHz,
We did not attempt to tune the cavities. 
Thank you for all helped : ketchum, bachiman, geesaman, plawski,settl

jkt

COMMENT ON Hall B Dome Shielding

4 hours 31 minutes ago
Log Number: 4472076Logbook(s): Body: 

Following a conditions re-evaluation, a construction change request (CCR) has been routed and approved which provides a simple, safe, achievable solution to begin work. Will need to maintain good communication and coordination regarding any vibration-related issues.

fazenbak

CREW CHIEF SIGN IN

4 hours 35 minutes ago
Log Number: 4472074Logbook(s): Body: 
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM

Date : 02-19-26
Time : 15:18:51
Day : Thursday
Shift : Swing

Crew Chief : Forman
Program Deputy: Buttles
Team : F
Arm : RADCON
Designated SSO: Schaumloffel
LERF Operator:
Operators : Schaumloffel

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

Shift Information

Shift Swing
CEBAF Program
MCC Crew Chief Forman
MCC Operators Schaumloffel
Program Deputy Buttles
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