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Recent Log Entries
20 hours 33 minutes ago
Log Number: 4481673Logbook(s): Tags: Body: saver ran from opsl04

Saved: ywang 03-30-26 11:25:24 {A:i B:5 C:2 E:345 A=BS B=BS C=Tune D=BS 0R08=0.00 0R08 dump in. A B C dump(s) in.
ywang

COMMENT ON PSS Runtime Miscallenous Repairs

Recent Log Entries
20 hours 37 minutes ago
Log Number: 4481668Logbook(s): Body: 

maintenance performed on hall c truck ramp door bar-bolt, due to a drop from run-state over the weekend. it was found today during the prejob walk that the bar bolt was suffering from mechanical wear and some missing hardware, causing the fixture to become loose over time. We cleaned/lubed the interior mechanisms, replaced missing hardware, and added some lock-tite thread locker to the bolts that physically hold the mechanism to the door. We also modified the B system switch as a preventative measure (added heat shrink to improve its ability to catch the latch).

beizer

After LO Modulator Removed, Re-establishing Beam

Recent Log Entries
20 hours 38 minutes ago
Log Number: 4481667Logbook(s): Entry Makers: moserBody: 

NL LO modulator has been removed. NL gang phase walked from 73.95* to -147.35*, which on the 1S01 viewer appears to be NL crest. Figure 1: But this NL GP setting, as well as walking around this point, does not propagate beam all the way through 1R, but into the 1A~teens. Turned on 1A orbit lock to hone in orbit in 1S and 1E before the arc, no change in how far the beam propagates. Note, 1A energy lock has been off.

Figure 2: Only changes since the LO Modulator box removed -- lock correctors only. That is, the Arc1 BoxPS is still exactly where it was.

Our energy appears to be different.

moser

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Recent Log Entries
20 hours 39 minutes ago
Log Number: 4481665Logbook(s): Tags: Body: saver ran from opsl632

Saved: bjacob 03-30-26 11:18:43 {A:i B:5 C:2 E:345 A=BS B=BS C=Tune D=BS 0R08=5.16 1R dump in. dump(s) in.
bjacob

FSD Masking Tool: Successful System Masking for: BeamLossMonitor

Recent Log Entries
21 hours 5 minutes ago
Log Number: 4481660Logbook(s): Tags: Body: System Masking for: BeamLossMonitor
User: bjacob
Areas: All

BeamLossMonitor Devices:
ILM0I07
ILM0L01A
ILM0L01B
ILM0L02
ILM2D00A
ILM2D00B
ILM0L04A
ILM0L04B
ILM0L05
ILM0L06A
ILM0L08
ILM0R01
ILM4D00
ILM0R03
ILM0R04
ILM0R06
ILM0R08
ILM0R09
ILM1L01
ILM1L02
ILM6R08
ILM3S00
ILM7S00
ILM9S00
ILM5S10
ILM5E03
ILM7S01
ILM9A01
ILM3E02
ILM5A01
ILM1A04
ILM1A06
ILM1A09
ILM5A10
ILM1A16
ILM1A19
ILM3R10
ILM9R07
ILM1R09
ILM2L03
ILM5R10
ILM5R05
ILM2L01
ILM2T09
ILM8T09
bjacob

APPROVED (B87) Shutdown Panel AMBS-P4; Replace 87-ACC-2 Breaker

Recent Log Entries
21 hours 17 minutes ago
Log Number: 4481649Logbook(s): Body: 

This work is approved and scheduled for Thursday April 2nd morning. Prefer it to occur as early as possible in the morning before the heat of the day sets in.

The Telecom closet on the North side of the building will need to have its door propped open and a box fan added to supplement cooling in the room. Please coordinate with Erik Werlau and the ACE team regarding this.

moser

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CEBAF Program
MCC Crew Chief Blackshaw
MCC Operators Humphry, Janak
Program Deputy Malace
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