WAC Notes August 15 2020
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PREX Main << Weekly Analysis Coordinator << WAC Notes CREX << Instructions
WAC Notes August 14 2020 << >> WAC Notes August 16 2020
August 15 2020
Daily Meeting BlueJeans
Production Run List - Slug 189 - IHWP IN - Flip-RIGHT
Continued from yesterday running
NEW Moller Quads Tune
- Good - Run 7734 - First production run with new/bad moller Quads tune. Looks good - Cut 12 X BPM out > 0.5 mm, < -1.5 mm
- Good - Run 7735 - Production run with new/bad moller Quads tune. Looks good - Cut 12 X BPM out > 0.5 mm, < -1.5 mm
- Good - Run 7736 - Production run with new/bad moller Quads tune. Looks good - Cut 12 X BPM out > 0.5 mm, < -1.5 mm
- Lots of RHRS asymmetry noise.
- Cut out from 175k onwards to avoid any potential problems with the RQ1 communication failure
- Good - Run 7737 - Production run with new/bad moller Quads tune. Looks good
- Cut 12 X BPM out > 0.5 mm, < -1.5 mm.
- Lots of RHRS asymmetry noise.
Production Run List - Slug 190 - IHWP OUT - Flip-RIGHT
- Good - Run 7738 - Production run with new/bad moller Quads tune. Looks good - Cut 12 X BPM out > 0.5 mm, < -1.5 mm
- Lots of RHRS asymmetry noise.
- Tried a brief period of FFB On, which caused quite a bit of noise.
- Generally OK though
- Good - Run 7739 - Production run with new/bad moller Quads tune. Looks good - Cut 12 X BPM out > 0.5 mm, < -1.5 mm
- Lots of RHRS asymmetry noise.
- Good - Run 7740 - looks good. Cut 12 X BPM out > 0.5 mm, < -1.5 mm
- Good - Run 7741 - looks good. Cut 12 X BPM out > 0.5 mm, < -1.5 mm
- Good - Run 7742 - big jump in bpm 12X yield at the beginning of the run, but honestly it is probably fine to leave it in there.
- Good - Run 7743 - Very short run. Looks good though
Back to the OLD Moller quads tune - Septum hadn't been cycled after hall work
- Good - Run 7759 - Looks good.
- 100 uA for most of the run.
- First run back with the originally used Moller quad tune set up.
- Noticed the SBS and HES septum magnet power supplies both weren't cycled correctly around noon and cycled them now.
RHRS Dipole tripped
- Good - Run 7760 - Looks good
- Cut out :70k events for large beam motion at the beginning of the run.
- R dipole tripped -> Set RHRS main detectors to local cuts and no-blinding and no-normalization
- Good - Run 7762 -
- Good - Run 7763 -
Non-Production Runs and Bad Runs
Issues
- Running with FFB off
- Moller quads failed and we got a different tune over night. The data seems OK anyway
- Run 7761 for Compton tuning on C-1%, needed vertical table move
Updates
- BMOD tune seems OK.
- I found another bug in code - was always using 4aX BPM even in 1X case for corrections... now fixed
- It appears 1X 15746 BMOD analysis is the best for the last few days of running. Needs re-analysis to pick up pedestal fix and get the full run lists all analyzed again.
