2016-01-08-SwC¶

Software & Computing Issues¶

Software & Computing Issues:

• Data reprocessing
  • To re-process data & do Step IV MC production, need:
    • Software: new release with tracker MC fixes
    • Geometry: new geometry with alignment corrections, fixes for MC, field model with PRY effect
    • DB: updated calibrations and bad channel map for tracker
  • For simulation of Cooling Demo
    • Need geometry with the official lattice. JB testing before handing over.

• Software
  • Tracker MC issues nearly resolved
    • Fixes to code, as well as to geometry
    • Code fixes being tested, to be merged into the MAUS trunk
    • New geometry being prepared for release
  • Field model in geometry
    • Opera model is being added to the geometry (for 4T run)
    • When field model is available, it will be folded into the geometry by default. If not, field map derived from coil currents
    • This will be available with the upcoming geometry release
    • The code to handle reading the Opera map is already in MAUS.
    • The geometry script changes to pull in the opera map will be brought into MAUS shortly by DR

• Efficiencies
  • Tracker space-point and straight-track efficiencies reasonable now. Inefficiency with helical tracks being studied.
  • TOF efficiencies being studied. Seems to be ~4-5% inefficiency in slab hits for both TOF0 and TOF1. TOF0 space-point inefficiency being investigated.
    • Possible that it will have to be recalibrated (in software)

• Infrastructure
  • Working on creating a DB table to hold alignment corrections to surveyed geometry (#1817)
    • corrections will be applied at geometry download time, transparent for end-user
  • Need a table to hold information about absorbers
    • Schema specified (#1815)
    • Needs to be written from RC
    • JM will create the table and the necessary C-API for Pierrick
  • Need table to store data & reconstruction quality flags
    • Reco flags will come from a post-processing job
      • 4 bits for each detector (count 11 detectors including RFs from Cooling Demo)
    • DR writing sample skeleton using TOF. Expect this to converge ~same time CDB is ready to digest it