Aggregator

Log Number: 4464060Logbook(s): 

• ELOG

Entry Makers: bschaumlBody: 

Fig. 1: Initial orbit, ZPos'd
Fig. 2: 2 attempts by steering script
Fig. 3: Manual steer
Fig. 4: Manual steer w/ Wien Magnet change to zero 1I07
Fig. 5,6: Steering and Wien screens after changes
Fig. 7: Interception w/ 15 uA CW
Fig. 8: Noted a tiny (<30 counts) bit of decarad activity whenever checking interception with CW

Log Number: 4464059Logbook(s): 

• ELOG

Entry Makers: bschaumlBody: 

Accidentally closed my JELI with initial screengrabs. Rels were fairly flat with Wiens at 0, as shown in linked entry.

Fig. 1-3: H Wien and orbit after change
Fig. 4,5: Orbit after 5 rounds of steering script attempts
Fig. 6,7: Orbit after manual steering
Fig. 8: Steering script after steering
Fig. 9: Interception after steering, no need for improvement here

Log Number: 4464058Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl01

Saved: bschauml 12-20-25 00:25:44 {A:5 B:3 C:1 E:340 A=BS B=BS C=BS D=BS 0R08=0.00 0R08 dump in.

Log Number: 4464057Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Schaumloffel
DATE:             12/20/2025
SHIFT:               Owl

The operator has read the following:

Log Number: 4464056Logbook(s): 

• ELOG

Entry Makers: anthonyBody: 

Log Number: 4464055Logbook(s): 

• ELOG

Entry Makers: anthonyBody: 

Log Number: 4464054Logbook(s): 

• ELOG

Entry Makers: anthonyBody: 

Figure 1, 2 and 3 Before
Figure 4, 5 and 6 after

After change, beam was not making it to FC1. Beam was stuck mainly in A1. I steered manually just to get the apertures clear. Rels were much better and beam was at FC1. I ran the injector steering script for two interations. Figures 5 and 6 show the results. Acceptable I think.

Log Number: 4464051Logbook(s): 

• ELOG

Entry Makers: anthonyBody: 

Figures 1,2 and 3 before
Figures 4, 5 and 6 after

Injector steer wouldn't work possibly due to A1 andA2 intercetpions degrading beam current to less than1uA. Steered to rels manaully. There were very large changes in the rels after this wien change. Injector Steering script was not able to work this out. This may not have been the scripts fault, but the wien change influence on orbit.

Log Number: 4464050Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl04

Saved: anthony 12-19-25 20:58:57 {A:5 B:3 C:1 E:340 A=BS B=BS C=Tune D=BS 0R08=0.00 0R08 dump in.

Log Number: 4464049Logbook(s): 

• ELOG

Entry Makers: anthonyBody: 

Figures 1, 2 and 3 before
Firgures 4, 5 and 6 after

Steering script ran two iterations and got rels back pretty close 1I07 in the horizaontal was an outlier.
Figure 7 rels after manual steering to fix 1I07.

Log Number: 4464047Logbook(s): 

• ELOG

Entry Makers: anthonyBody: 

Figures 1, 2 and 3. Before
Figures 4, 5, and 6. After.

Steering script after wien change sends A2 interception to 60. No more current is getting through and the whole things kind of hangs up. Manually steered to get rels close and interceptions back to 0.0x range. Then tried the Injector steer again with the same results. It just steered beam off until A2 hit 60 again. When back to steering back to the rels manually. Verical Wien is at -5 degrees.

Log Number: 4464045Logbook(s): 

• CLOG
• ELOG
• SRFLOG

Entry Makers: weaksmcBody: 

1L09 cooled down successfully, JT in AUTO set to maintain 20% Liquid.

Log Number: 4464044Logbook(s): 

• CLOG
• ELOG
• SRFLOG

Body: 

1L11 cooldown got all 4 pairs to 4K, but the LL probe seems faulty, or there's a software issue. No liquid He is detected despite the cavities being at 4K for about 2 hours now.

Log Number: 4464043Logbook(s): 

• ELOG
• SRFLOG

Body: 

1L11 - supported 4K cooldown

Log Number: 4464042Logbook(s): 

• ELOG

Tags: 

• Autolog
• MCC8am

Body:  */ ATLis Comments Posted 18:00 Thursday December 18 through 18:00 Friday December 19 AES DC power Systems SAM 2025 Box Supply Work

2025-12-19 15:12 - Kevin O'Brien

XSEP2T

Log Number: 4464040Logbook(s): 

• ELOG

Entry Makers: shrinerBody: 

Wien Angle Change Procedure Testing

fig 1-4: before VWien change
1) VWien change from -25 deg to -20 deg with B laser. After changing the angle I tried to use the script to steer, but it only made positions worse, so I tried manually steering.
fig 5-7: after VWien change

fig. 8-10: before HWien change
2) HWien change from -25 deg to -20 deg with B laser. Could not establish 15 uA to FC1 due to high interception on the Master Slit. Used Section 3.7 of Injector Setup: PCup to FC1 Procedure to try to minimize interception, but it did not improve.

Log Number: 4464036Logbook(s): 

• ELOG

Body: 

Target date 12/29.

Log Number: 4464035Logbook(s): 

• BTLOG
• POLOG
• ELOG

Body: 

The V-Wien chiller haas been turned on back by M. Bruker: https://logbooks.jlab.org/entry/4464026
Please leave the chiller on and do not set the V-Wien angle to more than +90 degrees or to less than -90 degrees.

Log Number: 4464034Logbook(s): 

• POLOG
• ELOG

Body: 

There was a RF work done not too long ago (1 or 2 months ago?), I found the settings did not fully recovered, Rama helped to check out. Not sure if that was the time when A and B got crossed somehow. I mentioned this in the 8:00am meeting.

Log Number: 4464033Logbook(s): 

• ELOG
• SLOG

Tags: 

• Autolog

Body: restorelib 3.0.1 Target restore date was 2025-12-19 17:10:20 The output from the myRestore execution was as follows: iocsl1 <NOTE> Rf6Cryo: Provided macro *CAV* is never used <NOTE> Rf6Ops: Provided macro *IOC* is never used Rf6Cryo Execute: burtwb -f /cs/opshome/burt/REBOOT/rf/snap/iocsl1heatdisvINIT.snap (success) Execute: burtwb -f /cs/opshome/burt/REBOOT/rf/snap/iocsl1heatmodemanual.snap (success) Pause: 8 second(s) Rf06Cryo_heatset@2025-12-19 17:10 4(4) restored Pause: 8 second(s) Rf06Cryo_heatmode@2025-12-19 17:10