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Log Number: 4476501Logbook(s): 

• ELOG

Entry Makers: mockBody: 

While running phaser in the NL, the 1A SLM suddenly became diffuse as shown in Fig. 1...

Log Number: 4476500Logbook(s): 

• ELOG

Body: 

Aiming to re-certify Monday 3/16 afternoon. Will update ATLis if that changes.

Log Number: 4476498Logbook(s): 

• ELOG

Entry Makers: schoeneBody: 

Log Number: 4476497Logbook(s): 

• ELOG

Entry Makers: mockBody: 

All the cavities currently online have been phased according to the log. NL gangphase was not responding as expected on the SLM, causing beam to disperse rather than shift position. We suspect there is some cavities not optimally phased.

Going to run phaser on the 345 MeV cavities to double check phasing.

Log Number: 4476495Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl632

Saved: chumphry 03-13-26 12:15:07 {A:i B:5 C:2 E:345 A=Tune B=BS C=BS D=BS 0R08=8.22 1R dump in. dump(s) in.

Log Number: 4476493Logbook(s): 

• ELOG

Entry Makers: mockBody: 

Log Number: 4476492Logbook(s): 

• ELOG

Entry Makers: mockBody: 

Including 1L09, now recovered (Fig. 1).
Arc 1 magnets on design (Fig. 2)
Rough orbit (Fig. 3)
Arc 1 SLM (Fig. 4)

Found SLM very dispersed initially. Had to adjust gangphase in order to get it back to somewhat reasonable size on SLM.

Log Number: 4476490Logbook(s): 

• CLOG
• ELOG
• RFLOG
• SRFLOG

Entry Makers: michaelmBody: 

KRRP fault on cavity 7 - derated it in the interest of getting the test done from 18 MV/m to 14 MV/m.

Restarting 1-hr for unit test from 12:02

Log Number: 4476489Logbook(s): 

• ELOG

Entry Makers: kernsBody: 

After OPS/SRF turned zone into HV three times starting at 0916 this morning, I plotted the tube and tried HV myself after clearing the fault at 0927. The KMAI spiked to 2ma when HV on the first attempts but measured good after the last HV attempt made. This looks like KMAI was caused by the prior attempts at HV dropping and the tube being thrown HV several times. All has been running great per my plots since then and no further problems with HV for SRF testing. OPSPR closed on Mike McCaughan ELOG 4476413.

Log Number: 4476488Logbook(s): 

• ELOG

Body: 

HYST AREA Version 7-0 has successfully cycled the following:

Area.Linacs.North

Total Time: 1.233 mins

Log Number: 4476487Logbook(s): 

• ELOG
• CLOG

Tags: 

• Autolog

Body: LEM 9.19 was successfully run for the North Linac on 2026-03-13 11:49:31. The application phase took 00:00:07 to complete.

Log Number: 4476486Logbook(s): 

• ELOG
• CLOG

Tags: 

• Autolog

Body: LEM 9.19 was unsuccessfully run for the North Linac on 2026-03-13 11:48:57. The operation terminated after 00:00:07 with the following results.
Cavity summarySuccess: 0 Abort: 200 Fail: 0

Log Number: 4476485Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: 

FudgeIt 5.0 changed the North Linac fudge factor from 0.989 to 0.983.

Log Number: 4476482Logbook(s): 

• ELOG

Body: 

HYST AREA Version 7-0 has successfully cycled the following:

Area.Linacs.North

Total Time: 1.233 mins

Log Number: 4476483Logbook(s): 

• ELOG

Entry Makers: mockBody: 

Log Number: 4476481Logbook(s): 

• ELOG
• CLOG

Tags: 

• Autolog

Body: LEM 9.19 was successfully run for the North Linac on 2026-03-13 11:38:10. The application phase took 00:02:04 to complete.

Log Number: 4476480Logbook(s): 

• CLOG
• ELOG
• RFLOG
• SRFLOG

Entry Makers: michaelmBody: 

Heaters at 235 W - monitoring pressure / JT. Test may be conducted in SEL or better modes. Have 7/8 cavities in SELA to cut down on the noisy GMES.

Log Number: 4476479Logbook(s): 

• ELOG
• RFLOG

Tags: 

• Autolog

Body: 

The following cavity histories have been updated:
Zone 1L09
Username: dthomas
Date/Time: 03-13-26_11:25:09
RF Status: Good
Comment: C75 Unbypassed - breaker reset
Special Instructions: If the zone trips off and when recovering the HV indicator on the screen shows on, but there is no KCCU or KPSV check both the zone breaker and MDP breaker to see if they tripped.

Maintenance Tag: Component: Operator Entry - See SME

Log Number: 4476478Logbook(s): 

• ELOG

Body: 

Looks good. Timing of execution TBD, based on when SRF commissioning wraps up on zone. Not anticipated for some time, 4/1 is just a placeholder to convey in the future.

Log Number: 4476477Logbook(s): 

• ELOG

Body: 

Looks good. To occur ASAP after completion of SRF commissioning on the zone.