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'ODH head bypass Instructions' seem to have a misprint when combined with ODH reference chart

17 hours 28 minutes ago
Log Number: 4498111Logbook(s): Entry Makers: dchriBody: 

Requesting LERF Lab Room #3A Safety System cabinets for 'ODH head bypass Instructions' step #5 be changed to ask for channel number instead of module number...

Upon bypassing an ODH head in the LERF we noticed a misprint in the instructions. Step #5 in the Instructions (FIG.1) say to "Select the module using the 'up' or 'down' keys"

following the instructions while using the reference chart would lead you to selecting the ODH head's module # instead of the ODH head's channel #.

Entering the module number at instruction step #5 leads to bypassing incorrect ODH heads.

dchri

The 1L12 MO temperature temporarily drops to ~31 degrees, then recovers, every 45 days and 18 hours (or so)

17 hours 39 minutes ago
Log Number: 4498107Logbook(s): Entry Makers: victorcBody: 

As aforementioned, the 1L12 MO temp does recover after a couple hours every time but does drag the NL gangphase with it. Other than that, it seems there are no ill effects. The OPS-PR for this is linked.

I foresee the next occurance happening on June 27th at around 18:30. See you there!

victorc

LERF Lab ODH reference photo doesn't match lables on Lab Room Doors

18 hours ago
Log Number: 4498103Logbook(s): Entry Makers: dchriBody: 

corrections to linked (via FIG.1 clickable "ODH-LERF" EDM screen) online photos should be made for ODH heads 214 & 213. The Lab Room #3A in the photo should be changed to Lab Room #3 (or vise versa)

Also, "ODH-LERF" EDM screen labels Lab Room 3A where physical lables on the door say Lab Room 3. The same change request apply here as well

Additional correction should be made for ODH head 222 & 221 linked online photos. Where photos say Lab 3B and physical labels on door say Lab 3A.

The corrections are to match the physical labels on the doors.

dchri

ODH222 head - LERF - bypassed. Lab 3 posted as ODH2 area. SSG has been informed

18 hours 20 minutes ago
Log Number: 4498101Logbook(s): Entry Makers: dchriBody: 

After ODH alarmed via MCC PSS console, Ops 2-person team went to investigate. No hazardous levels were identified. Adjacent head OM221 had already been bypassed, so Lab Room #3A (labeled incorrectly as 3B in referenced photo FIG.2,3) has been roped off and declared as an ODH2 area. SSG has been informed and Lab Room #3A (labeled incorrectly as 3B in referenced photo FIG.2,3) will need further investigation before de-posting it

FIG.4
Additional corrections to linked (via FIG.1 clickable "ODH-LERF" EDM screen) online photos should be made for ODH heads 214 & 213.

dchri

Operator SIGN IN

18 hours 42 minutes ago
Log Number: 4498098Logbook(s): Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Christian
DATE:             05/13/2026
SHIFT:               Owl

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

SSG guidance re: LERF ODH alarm

19 hours 10 minutes ago
Log Number: 4498097Logbook(s): Entry Makers: kpriceBody: 

Adjacent head in Lab 3A is already bypassed. If no ODH condition is discovered, investigation team will bypass the alarming sensor and post Lab 3A as an ODH 2 area, per SSG on-call instruction.

kprice

Autolog save

19 hours 35 minutes ago
Log Number: 4498091Logbook(s): Tags: Body: saver ran from opsl632

Saved: victorc 05-13-26 00:12:35 {A:i B:1 C:2 E:345 A=BS B=CW C=Tune D=CW 0R08=4.65 dump(s) in. Start of owls. xB 23 nA, xC witness, xD 23 nA.
victorc

Operator SIGN IN

19 hours 36 minutes ago
Log Number: 4498090Logbook(s): Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Chaudhary
DATE:             05/12/2026
SHIFT:               Owl

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

Attempting to Clean Up IIX2C00, Inadvertently Improved Halo Rates

19 hours 46 minutes ago
Log Number: 4498086Logbook(s): Entry Makers: bschaumlBody: 

The 2C00 IDX was rising, so I attempted to improve it with gangphase adjustments and also by steering at 2T09V. This coincided with a mild improvement at 2C00 that felt more like the machine drifting than anything I was correcting. My messing about, perhaps in conjunction with said drift, definitely improved the midstream halo rates.

bschauml

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MCC Crew Chief Forman
MCC Operators Schaumloffel, Thomas, Yoon
Program Deputy Drury
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