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2L26 Cooldown Complete

8 hours 6 minutes ago
Log Number: 4468541Logbook(s): Entry Makers: weaksmcBody: 

Cooldown of 2L26 is complete.

Struggled to get liquid in it, I recall that this module was previously having difficulty maintaining liquid and had it's JT around ~100% open when cold. Likely has a thermal short somewhere contributing to the high heat leak.

Either way, its cold now and is filling to 20%

weaksmc

Beam on Inj SLM!!

8 hours 14 minutes ago
Log Number: 4468537Logbook(s): Entry Makers: samariBody: 

the view is quite off, had to put MBL0L02 at a very small value. 38530 BDL was nominal orbit here.

samari

0L06 Energy Measurement

8 hours 51 minutes ago
Log Number: 4468535Logbook(s): Entry Makers: bschaumlBody: 

Zeroed BPMs specified in procedure, found beam on the viewer using MBF0L06, cycled spectrometer, nudged it up a few hundred BdL, and cycled again. Fig. 3 is the final energy measurement of 115.77 MeV.

bschauml

Reached desired energy

9 hours 14 minutes ago
Log Number: 4468533Logbook(s): Entry Makers: samariBody: 

Going back and checking phasing, It seems that 0L02-8 was phased before 0L02-7, which made all of the difference necessary to bring energy to the full 116 MeV.

samari

COMMENT ON RF work for 2026 HCO

9 hours 42 minutes ago
Log Number: 4468524Logbook(s): Body: 

Lockout of 2L11 and 2L20 CPS completed for SRF work. Filament bd. replaced in 1L09-4 to fix filaments but no KCCU noted in Beam Permit. Need to look at klystron resistor or T/S. Filament board was also replaced in 0L04-3 but it still had original Filament Voltage High fault and only ~.54a vice ~3.5a like the others. Board connections and voltage ramp at tube looked good. Klystron filament needs further T/S. Techs: C. Kerns and X. Gomez

kerns

The following cavity histories have been updated: 1L23-3

10 hours 10 minutes ago
Log Number: 4468518Logbook(s): Tags: Body: 

The following cavity histories have been updated:
1L23-3
Username: kerns
Date/Time: 02-04-26_16:41:37
RF Status: Good
Tuner Status: Good
Comment: Sorenson supply replaced and adjusted. Un-bypassed.
Special Instructions: ODVH from SRF commissioning are suggested. optimize LLRF, then push RF

Maintenance Tag: Component: Other

kerns

The following cavity histories have been updated: 1L24-3

10 hours 19 minutes ago
Log Number: 4468513Logbook(s): Tags: Body: 

The following cavity histories have been updated:
1L24-3
Username: kerns
Date/Time: 02-04-26_16:32:53
RF Status: Good
Tuner Status: Good
Comment: Sorenson supply replaced and adjusted. Unbypassed.
Special Instructions: Set Kly solenoid current lower limit (PV R1O3KSOLIL ) to 15 (readback issue)

Maintenance Tag: Component: Other

kerns

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