EUTelescope Developers Meeting

Monday 5 Dec 2016, 10:00 → 11:00 Europe/Zurich

• Installation
  • Take ROOT out of ILCinstall, have users install themselves -> Tom
    • Install doesn't work with ROOT 6
    • Should check if ROOT already installed -> download if it isn't
    • Tobias and Simon working to create an installer for developers -> Frank Gaede
    • Feedback from ATLAS ITk Pixels addressed

--> starting with this now, check issue 3.18 on issue tracker

• Documentation
  • Tom's documentation for Pixel? -> report in Pixel TB meeting sometime
    • To be expanded for use by 'everyone'
    • Virtual machines with working installation available
      • Host today

--> strip ones ready for distribution

--> standard ones ready in a few days

• Add recommendations for versions
• Put it on eutelescope.web.cern.ch -> Tom
  • Waiting for feedback

• EUTelescope forum old, use GitHub issue tracker -> Ingrid to formulate a mail
• Updating/concentrating mailing lists for users and developers -> Edo, (Tobias)
  • One list for developers, one for announcements to users
  • Questions/discussions on issue tracker

• Clean up old code -> Tobias
  • Backend work
    • Branch w/o Alex' GBL ready, not merged yet -> GBL code
      • Old GBL removed
    • Developers documentation growing
    • Simon helping in clean up
    • Implement nice indentation using clang_format
      • Get open pull requests in order before -> still open
      • Convention on Euler angles -> ALICE needs to change some processors, tbd next months
        --> settled
      • One more pull request to come from ALICE -> mainly histograms
        --> didn't arrive, go ahead with clang_format
      • ALIBAVA pull request
        -> person to maintain this code?
    • Tbd: remove some old processors

• X0 measurement
  • Benni/Ulf's code, GBL-based (biased, because you put in a material estimate!)
  • Study resolution and impact of bias in GBL-method -> Hendrik
    • Test measurements in week 44
    • Not done -> do before christmas
• GBL
  • Compare Alex' and Simons code -> Edo
    • Klaus' and Simons code give same results
  • create more general version, compatible with current definitions -> Tom (Tobias)
  • Implement generalized track search (currently using triplet search for pattern recognition)
• GEAR -> DONE
  • Write alignment constants to GEAR file -> Tobias, nearly done
  • New GEAR format: Tobias' proposal
    • Will break backward compatibility
    • Valuable new features
    • Ready for version 1.1

-> Tobias

• Pull request from ALICE, which uses new convention for Euler angles
• Which convention to use? -> Tobias to discuss with ALICE people, then pick one!

• Discussed the new format:
  • Table in 'GEAR' issue on github for revision -> converge within next few days
  • Implementation done!
• Both old and new version work now -> has been validated

• Split up into many libraries -> DONE
  • Simon restructured source tree
    • Three libraries: libeutelescope (main lib, interfaces, etc, EUDAQ links against this), libeutelreaders, libeutelprocessors
  • DONE!
• Test/update examples, nightlies and continuous integration -> Edo, Tobias
  • To be done when version is stable, after development and clean up

• Long term maintenance
  • Regular meetings -> biweekly, Monday 10am, announced via eutelescope-meeting@cern.ch -> Jens
    • Move agenda to DESY indico
      • Jan made agenda available, but: DESY indico missing vidyo functionality, some people don't have accounts
    • Try out CERN again: Category is Home/Experiments/EUDET
      • Test for next meeting

• Paper -> Jens, Hendrik
  • Measurements to show?
  • Validation with simulation
    • Alignment precision, weak modes, etc.
    • Pointing resolution
    • DAF vs GBL
  • Systematics
  • Aim at spring 2017

• AoB
  • 5th Beam Telescopes and Testbeam Workshop: 24.-27. January 2017 in Barcelona
    https://indico.desy.de/conferenceDisplay.py?confId=16161
• Lingxin
  • How to ignore FE-65p2 DUT
    • In EUDAQ converter plugin, write the DUT data to a different collection, then ignore it in EUTelescope
  • Noisy sensors: use binary clustering
    • What are the differences between available clustering processors?
    • EUTel Sparse/Geometric clustering construct clusters of hit pixels using distance and timing conditions
    • Charge weighting done later in Hitmaker processor