WAC Notes October 30 2019

From PREX Wiki
Revision as of 12:55, 30 October 2019 by Paulmking (Talk | contribs) (BCM normalizer, systematic control, etc.)

Jump to: navigation, search
HOW TOs for shift crew
Expert Tools
All Expert Contacts

PREX Main << Weekly Analysis Coordinator << WAC Notes << Instructions

WAC Notes October 23 2019 << >> WAC Notes November 6 2019

October 23th 2019

Daily Meeting BlueJeans


Lets follow up on Tao's summarized spreadsheet https://docs.google.com/spreadsheets/u/1/d/1Y6qR_h4oW4qNmbtdpo2TIX2u_TI5qjRUZIDyEroMfl0/edit#gid=0

Issues Done

  • A bunch of runs from the spreadsheet have been investigated
  • Some tools for investigating runs have been developed by Tao and others (in various repositories, should be joined into JAPAN soon)

Issues Pending

  • Update slugs with accurate RCDB/disagreements - https://docs.google.com/spreadsheets/u/1/d/1Y6qR_h4oW4qNmbtdpo2TIX2u_TI5qjRUZIDyEroMfl0/edit#gid=0
    • Tao had sent a github link ([1]) showing changes in the runlists, including some run flags that weren't updated in RCDB.
    • WACs should try to update their runs in RCDB again.
    • We also still need to ensure that all of the runs with RCDB/slowtree mismatches have blinder map files if needed. WACs should add a comment to that sheet for runs that still need to have the blinder forced.
  • Aq failure/large charge asymmetry solution:
    • Weibin and Cameron will use the Aq feedback logs to check if the large Aq runs should be cut due to feedback being off -> run list (see rootfile in /adaqfs/home/apar/weibin/Aq_FB)
  • Paul will make a special setup script on adaq machines to analyze prex2 runs after the data directory move
    • In the meantime, you can use "setenv QW_DATA /adaq2/data1/"

Planned Updates

Event cuts

  • Weibin has surveyed the event cuts (see rootfile in /adaqfs/home/apar/weibin/runcuts)
    • We should fix the "repeated setting" files, or remove them if they don't have other substantive changes. Fixed
    • We should standardize the beam current cut on the normalizing BCM as being 15uA below the nominal beam current.
      • Robert will make a list of the runs that are the transitions between "50uA", "70uA", and "85uA".
    • The stability cut and burp cut settings on BPMs are kind of messy. Should we try to clean them up? Cameron will look particularly at runs 3450-3452 and a few isolated runs.


  • Devi has made log entries on this:
    • We should look at all of the calibration runs/condition changes and make sure that the pedestals calculated accurately reflect the conditions during that time
    • We should make sure that all pedestal changes are well motivated and no calibration runs were neglected
    • We should make sure that early runs aren't missing pedestals that may currently have later run ranges (Due to late application)
  • Robert has made a log entry on identifying pedestal changes across runs http://ace.phys.virginia.edu/HAPPEX/3917

BCM normalizer, systematic control, etc.

  • Cameron has reproduced Catherine's BCM systematics vs. normalizer/Aq BCM, but now with DDs in it too - this lives in a parallel folder to the main slug plots (called PQB)
  • Victoria and W&M students are running with this and making diagnostics about systematic control on Aq
    • They've started by trying to look at the aggregated values, but Kent suggests looking at individual runs or miniruns to look at the noise levels in certain BCMs
  • Devika is working on getting the list of which BCMs were working at which times, and will communicate with Victoria and Zeke

Including Dithering as Production Data

  • Victoria will use cuts to investigate how it looks to include the dithering data (that was cut before) as production data

Farm analysis

  • Devi asked about how to get access to the data from the farm. It's on the cache and we'll put some instructions up soon


Cameron, Ryan, Weibin, Devi, Dmitry, Tao

Phone: Victoria, Zeke, Caryn, Robert, Paul K., Kent