Aggregator

Log Number: 4466866Logbook(s): 

• ELOG

Tags: 

• MCC8am

Body:  Click to add title brevity Click to add image [f

Log Number: 4466865Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Janak
DATE:             01/20/2026
SHIFT:               Day

The operator has read the following:

• ELOG
• PD Shift Plan
• Radiation Surveys for PSS Segments in Controlled Access
• PSS Log

Log Number: 4466862Logbook(s): 

• ELOG
• RADLOG

Entry Makers: chumphryBody: 

Log Number: 4466861Logbook(s): 

• ELOG

Entry Makers: samariBody: 

It looks like the cs/prohome/apps/i/InjSteering/5-2/fileio/data/olddata directory got deleted at some point. The back directory only contains one iteration of the spot matrices.

Log Number: 4466860Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl01
Data from: /usr/opdata/burt/allsnap/01-20-26_00:13:15
Restored file: /tmp/01-20-26_07:23:45.snap

Log Number: 4466859Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl01

Saved: bschauml 01-20-26 07:23:27 {A:5 B:3 C:1 E:340 A=BS B=BS C=BS D=BS 0R08=0.00 0R08 dump in. Autosave prior to restore.

Log Number: 4466858Logbook(s): 

• ELOG

Entry Makers: beneschBody: 

2L25 since the 2K trip and pumpdown Saturday morning. It would be helpful if the cold cathode gauge were functional, figure 4.

Log Number: 4466857Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: High Voltage was turned off for:
R22
R23
R24
R25
R26
R27
R28
R29
R2A
R2B
R2C
R2D
R2E
R2F
R2G
R2H
R2I
R2J
R2K
R2L
R2M
R2N
R2O
R2P
R2Q

Log Number: 4466856Logbook(s): 

• POLOG
• ELOG

Body: 

We do have a BSList in the queue for optimizing the steering script: https://tasklists.jlab.org/bslist/tasks/119076.

Log Number: 4466855Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl01
Data from: /usr/opdata/burt/allsnap/01-19-26_07:58:27
Restored file: /tmp/01-20-26_05:50:36.snap

Log Number: 4466854Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl01

Saved: bschauml 01-20-26 05:50:22 {A:5 B:3 C:1 E:340 A=BS B=BS C=BS D=BS 0R08=0.00 0R08 dump in. Autosave prior to restore.

Log Number: 4466853Logbook(s): 

• POLOG
• ELOG

Entry Makers: bschaumlBody: 

After last night's exercise with jumping the V Wien from -90 to 90, I am curious to see if the same can be done with the H Wien. Fig. 1-11 shows beam with the H Wien at -5. First, I tried the big jump to -90, with no luck getting it on ITV1I06. I had to walk it back to -65 and bump MWF1I06 up about 70 G-cm from the calculated setpoint to get a reasonably behaved beam.

Log Number: 4466852Logbook(s): 

• POLOG
• ELOG

Entry Makers: bschaumlBody: 

After my frustration with the steering script last night with the vertical Wien changes, I decided to see if it does a better job for the horizontal Wien. To its credit, it doesn't steer beam off into oblivion! However, it seems to call it quits once the rels are around 0.25 mm. C'mon, it isn't that hard to get those down to zero! I reset correctors and did the steering myself (I promise I didn't cheat and look at the corrector values) to see how much quicker I could steer.

Log Number: 4466851Logbook(s): 

• ELOG

Tags: 

• Autolog

Body: saver ran from opsl01

Saved: bschauml 01-20-26 00:13:15 {A:5 B:3 C:1 E:340 A=BS B=BS C=BS D=BS 0R08=0.00 0R08 dump in.

Log Number: 4466850Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Schaumloffel
DATE:             01/19/2026
SHIFT:               Owl

The operator has read the following:

Log Number: 4466849Logbook(s): 

• ELOG

Body: 

16th January:
-Tunnel pan install east end of the NL
-Beginning final inspections of Hall C Junction Box

Log Number: 4466848Logbook(s): 

• ELOG

Entry Makers: eformanBody: 

MPS fast shutter alarm (Injector / Laser / Laser_Table / MPS Fast Laser Shutter) points to the wrong guidance page.

When guidance is clicked, it opens:
https://epicsweb.jlab.org/wedm/screen?edl=pol_source/fiber1.edl

Guidance should point to:
https://opswiki.acc.jlab.org/wiki/MPS_Fast_Shutter_alarm

Log Number: 4466847Logbook(s): 

• ELOG

Entry Makers: eformanBody: 

For completeness, documenting that 8 uA CW to FC1 shows nearly 0 interception on A1 & A2 after changing the horizontal wien angle (no touch-up steering necessary).

Log Number: 4466846Logbook(s): 

• POLOG
• ELOG

Entry Makers: eformanBody: 

Previous operator passed down that beam was stuck at the H. Wien after an aborted attempt to run through the training and reloading a good all-save (26460). It appears that the horizontal wien angle used in the all-save is 0 degrees but it is currently set to -25 degrees (fig. 1). I am assuming that the large h.wien angle change is the culprit behind the beam loss.

Used OpsWien Angle Change procedure to change angle from -25 degrees to 0 degrees. Initial (as found) conditions: figs.