Aggregator

7A Horizontal Steering

6 hours 16 minutes ago
Log Number: 4478267Logbook(s): Entry Makers: janakBody: 

Touched up horizontal steering slightly in 7L and 7A using 6R, 7S/E and 7A correctors. Next step is the dp/p correction which should allow some of the corrections in 7A to be minimized

janak

Follow-up Re: Gangphase Changes vs Temperature

6 hours 30 minutes ago
Log Number: 4478264Logbook(s): Body: 

Although it may seem obvious, both Heliax and RFoF cables are sensitive to temperature changes. As outdoor temperatures fluctuate, the phase between accelerator buildings will drift. The gang phases between zones will vary based on the temperatures of the service buildings, which are not stable and will require constant monitoring. While the main MO/LO line is temperature-stabilized, all LLRF systems and associated cables are still affected by these temperature changes.

plawski

Operator SIGN IN

6 hours 46 minutes ago
Log Number: 4478258Logbook(s): Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Humphry
DATE:             03/19/2026
SHIFT:               Day

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

Operator SIGN IN

6 hours 54 minutes ago
Log Number: 4478257Logbook(s): Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Janak
DATE:             03/19/2026
SHIFT:               Day

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

Autolog save

7 hours 26 minutes ago
Log Number: 4478255Logbook(s): Tags: Body: saver ran from opsl632

Saved: bjacob 03-19-26 07:40:30 {A:i B:5 C:2 E:345 A=Tune B=BS C=BS D=BS 0R08=5.22 7R dump in. dump(s) in. Start of day shift. 7S,R steering in progress.
bjacob

Autolog save

7 hours 50 minutes ago
Log Number: 4478253Logbook(s): Tags: Body: saver ran from opsl632

Saved: victorc 03-19-26 07:16:14 {A:i B:5 C:2 E:345 A=BS B=BS C=BS D=BS 0R08=0.00 7R dump in. dump(s) in.
victorc

CREW CHIEF SIGN IN

7 hours 52 minutes ago
Log Number: 4478252Logbook(s): Body: 
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM

Date : 03-19-26
Time : 07:12:14
Day : Thursday
Shift : Day

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

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

Aperture scan to 6R

8 hours 22 minutes ago
Log Number: 4478245Logbook(s): Entry Makers: victorcBody: 

Figures 1 & 2: Started seeing wire sum loss at 3A24-24 and 5A23-24 at 4.4 VAC with RF.
Figures 3 & 4: Started seeing wire sum loss at 3A24-24 and 5A23-24 at 2.8 VAC with 1E01V
Figures 5 & 6: Started seeing wire sum loss at 3A24-24 and 5A23-24 at 2.9 VAC with 1S09V.
Figures 7 & 8: Started seeing wire sum loss at 3A24-24 and 5A23-24 at 4.9 VAC with 1S08H.
Figures 9 & 10: Started seeing wire sum loss at much of 3A, the beginning and end of 5A, and all of 5R at 4.5 VAC with 1E01H.

victorc

Shift Information

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

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Recent PSS History

recent pss history graph