Aggregator

Log Number: 4469508Logbook(s): 

• CLOG
• ELOG
• SRFLOG

Body: 

1 hour has passed since cooldown of 2L26 began. LL setpoint to 20%.

Log Number: 4469506Logbook(s): 

• POLOG
• ELOG

Entry Makers: suleimanBody: 

While checking signals from the UVA RTP HV Driver and JLab Driver, we identified these differences:

1. The two drivers are out of phase with the helicity signal - see first linked entry.

2. For the UVA Driver, the cables connected to crystal 2 were swapped - see second linked entry.

With the JLab Driver, the PITA slope was measured to be +0.318 ppm/count (IHWP=OUT). The slope measured with the old driver was +0.621 ppm/count (IHWP=IN)- see third linked entry. The factor of two is due to the fact that the new driver uses 10 VDAC while the old driver uses 5 VDAC.

Log Number: 4469503Logbook(s): 

• ELOG
• INCLOG

Body: 

Going out now to begin work.

Log Number: 4469501Logbook(s): 

• ELOG

Body: 

Please make regular updates to this ATLis when a zone/cavity is processed/attempted.

Log Number: 4469497Logbook(s): 

• ELOG

Body: 

Any reason to not mark this ATLis complete?

Log Number: 4469495Logbook(s): 

• ELOG

Body: 

PTW on-issue. Looks good. Added to today's SAM Calendar.

Log Number: 4469493Logbook(s): 

• SRFLOG
• CLOG
• ELOG

Entry Makers: johnwBody: 

U-Tubes are complete for 2L24 and 2L26. Both modules have been released to SRF for cooldown; 2L26 was released around 20mins ago with 2L24 planned to start about an hour after 26. We encountered no issues with U-Tube installation.

Log Number: 4469491Logbook(s): 

• ELOG

Body: 

Tomorrow 9am works for us.

Log Number: 4469490Logbook(s): 

• ELOG

Body: 

Can we aim to do this breaker swap tomorrow, Wed 2/11, beginning at 9AM? Based on time estimate on the ATLis, starting at 9AM would have the work ending around 11AM.

Log Number: 4469488Logbook(s): 

• CLOG
• ELOG
• SRFLOG

Entry Makers: weaksmcBody: 

U-Tubes installed, and everything looks good, starting cooldown now

Log Number: 4469487Logbook(s): 

• ELOG

Body: 

The MOLLER computers are not yet on emergency power, so we'll have to shut them down for this. That's not a problem, but it would be good to know in advance when the work would be done. Anytime is fine, just let me know when, preferably the day before. Ole

Log Number: 4469483Logbook(s): 

• ELOG
• RADLOG

Entry Makers: bjacobBody: 

Log Number: 4469479Logbook(s): 

• SRFLOG
• CLOG
• ELOG

Entry Makers: wisslerthilanBody: 

Pumpdown of SC2 complete. NLinac is at 0.0392 atm, 185 g/s.

A rise in return temperature was seen towards the latter part of the pumpdown, but the program was able to handle it and finish the pumpdown.

Log Number: 4469478Logbook(s): 

• ELOG

Entry Makers: deirBody: 

Hall C laser is currently deselected in Boom Buddy and it seems the TMG check script is failing because it can not turn on that laser.

Fig 2: Shows a some of the PV's that boom buddy uses that the script writer could implement in the script to determine which lasers are in use.

Log Number: 4469477Logbook(s): 

• POLOG
• ELOG

Entry Makers: chgarciaBody: 

At 7:37 this morning, both PSS A and B lost permit, forcing the gun HV OFF. VWien was off at the time, HWien HV was at +/- 2kV with magnet BDL at 43 G-cm. (Figure 3).

Log Number: 4469476Logbook(s): 

• POLOG
• ELOG

Entry Makers: kpriceBody: 

Inadvertently switched key to controlled before rampdown. Mea culpa!

Log Number: 4469475Logbook(s): 

• ELOG

Tags: 

• MCC8am

Body:  PD SUMMARY

Injector Ops: Beam setup to ILD for high energy run. 5MeV match completed. Optics may need refinement. Partial setup to ILD for low energy run.

Log Number: 4469472Logbook(s): 

• ELOG
• LERFLOG

Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Thomas
DATE:             02/10/2026
SHIFT:               Day

The operator has read the following:

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

Log Number: 4469469Logbook(s): 

• ELOG
• RADLOG

Entry Makers: msmithBody: 

Log Number: 4469468Logbook(s): 

• CLOG
• ELOG

Entry Makers: wisslerthilanBody: 

Starting pumpdown of SC2/NLinac.