WAC Notes December 15 2019
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WAC Notes December 14 2019 << >> WAC Notes January 8 2020
December 15 2019
Daily Meeting BlueJeans
Production Run List - Slug 104 - pre-Production
- Good - Run 5477 - Ca48 150uA - Cut out the first 45k events due to strong beam instability
- Good - Run 5478 -
Non-Production Runs and Bad Runs
Pedestal/Calibrations Updates
- https://docs.google.com/spreadsheets/d/1mt39fCuIW3Pr8TO7fzhtFjmMFt4Op30jMm5wMQke6Xo/edit?usp=sharing
Issues
- Slug 104 has FFB turn on mid way through the slug - this makes the optics/energy in the HRS more comfortable and stable
- SAM 7 is updated and ATs are moved at the end of slug 103 and ATs are moved at the end of slug 104, so these are bifurcations
- Fixed the prompt summary to report correct number of patterns: https://logbooks.jlab.org/entry/3753878
- 12X energy shifting
- Dispersion in the arc is measured as 0.4 MeV/mm
- Dispersion in the HRS is 6.2 mm/MeV
- Dithering does a 0.5 mm p2p fluctuation in 12 X -> 1.25 mm shift in the HRS Quartz
- Normal running without FFB does 1 mm p2p fluctuations (over hour time scale) -> 2.5 mm shift in the HRS quartz
- 5477.0 has a significant problem in JAPAN
- Long vs. short bursts will require JAPAN rNd from Paul, etc.
- The AT combos of interest are Ldd avg Rdd (for vertical transverse), Indd avg Outdd (most important for horizontal transverse), and dd's therein
BCMs
- Run 5474 is a current ramp for calibrating BCM Cav 4CQ, AT Rs, and SAM 7
Pedestals and Calibrations (respin first 4 slugs)
History of calibrations spreadsheet
- Run 5410 - Unser calibration - 5396->5420 - https://logbooks.jlab.org/entry/3753060
- Run 5417 - SAM calibration - 5410->5420 - https://logbooks.jlab.org/entry/3753970
- Run 5433 - BPMs calibration - 5410-> - https://logbooks.jlab.org/entry/3753602
- Run 5436 - SAM and Main Dets - 5421->5473 - https://logbooks.jlab.org/entry/3753968
- Run 5434 - Unser calibration - 5421-> - https://logbooks.jlab.org/entry/3753564
- Run 5474 - Main dets and SAMs - 5474-> - https://logbooks.jlab.org/entry/3753933
Committed: https://github.com/JeffersonLab/japan/commit/ddb956334b38acb124f67b1e841b5a02c761cc97
