Recent Log Entries

Operator SIGN IN

Log Number: 3975900Logbook(s): Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Moser
DATE:             01/23/2022
SHIFT:               Owl

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

VBV2L08B Closures Getting More Frequent, And Recovering Taking Longer

Log Number: 3975895Logbook(s): Body: 

Channels: VBV2L08BS, VIP2L0820LOG, VIP2L0830LOG, VIP2L0840LOG, VIP2L0850LOG, VIP2L08ALOG, VIP2L08BLOG

First and third pumps, for cavities 1 and 2 and 5 and 6, often spike with the A and B pumps when the valve closes. Perhaps we should de-rate these?

We may need to do this to make it through the night.

Autolog save

Log Number: 3975841Logbook(s): Tags: Body: saver ran from opsl632

Saved: moser 01-23-22 00:17:25 {A:3 B:1 C:4 E:980 A=CW B=CW C=CW D=BS 0R08=70.80 No dumps in.

Operator SIGN IN

Log Number: 3975835Logbook(s): Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Deir
DATE:             01/23/2022
SHIFT:               Owl

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

Reduced A2 aperture using MHD0I01AH and V

Log Number: 3975828Logbook(s): Entry Makers: lawBody: 

A2 aperture was creeping up to > 11uA. Used correctors MHD0I01AH and V to reduce the interception. Minimizing using MHD0I01AH was ~7.6uA, and minimizing using MHD0I01AHV is ~5.3uA.

CREW CHIEF SIGN IN

Log Number: 3975826Logbook(s): Body: 
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM

Date : 01-22-22
Time : 23:27:19
Day : Saturday
Shift : Owl

Crew Chief : Surles-Law
Program Deputy: Bodenstein
Team : X
Arm : Moser
Designated SSO: Deir
LERF Operator:
Operators : Deir, Moser

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

VBV2L08B closes nearly every hour.

Log Number: 3975747Logbook(s): Entry Makers: lrichardBody: 

Not sure if this is coincidence or some timing feature, but I've been, fairly accurately, predicting when to expect the next valve closure during this shift by jotting down the time of the previous valve closures. It appears to close every hour +/- 15 minutes (Fig. 1).

MBC6R07V mismatch

Log Number: 3975718Logbook(s): Entry Makers: anthonyBody: 

MBC6R07V on Trim Rack NL01B03 mismatched. Demand setpoint accepted and magnet was cycled and placed back on loop,

FudgeIt

Log Number: 3975671Logbook(s): Tags: Body: 

FudgeIt 4.1 changed the North Linac fudge factor from 1.015 to 1.017.

Pages