SLAC-2017:Instrument Extended Breakout

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Instrument 3rd Day Breakout

  • We have lego pieces, what's next
  • Questions/ Discussion points
    • Improve current document? New document?
    • Any missing lego pieces?
    • Cryogenic, Site, Data Acquisition, Calibration
    • Detector Test section was thin
      • Detector Test scenario - Test every detector or just subset
      • Come up with test bed scenario (stage-2 like, stage-3 like)
      • What do we need to do to prove that current test setup is good enough to test detector characteristics to meet CMB-S4's systematics requirement?
    • Optics material characterization section was thin
      • R&D setup idea
    • Spec/Systematics
  • Input/output table (Spec (with range) table)?
    • Standardize input out table, then fill them out?
    • Typical range/spec that we can agree to?
    • What sim/test do we need to quantify them?
    • Standardize spec definition
      • For ex. how to define beam size vs pixel size
    • File:OpticalCouplingInputOutput.pdf

Notes from session

  • Would like to get regular update from CDT at instrument telecon
  • Technology book will be done soon. What's next?
    • Come up with technology road map
    • Should we put together hypothetical receiver to understand what needs to be developed for S4?
    • How do we coordinate input/output from each sub group << is this CDT's job?
    • Missing topics from current technology book
      • Cryogenics
      • Sites
      • Data Acquisition
      • Calibration
      • More detail/ thoughts on detector QC
      • Discussion on benefit of having different system (for systematics)
  • Standardize parameterization to facilitate technology comparison
  • Memo system: something like ALMA memo
    • Very useful to keep track of study and ideas
    • Should there be review process
    • Where to host/ maintain?
  • Representative from HPD - If R&D on rapid cooling system (for ex. 4K load lock system) is desirable, knowing such need early would be helpful

Action items/Next steps

Summarize action items here