Attendees: Marc, Alex, Armin, Eliazar,  Rebecca, Joe, Corey


  • Check XRT stopper clearance - there is an interference with the rack -  we have a few options to review
    • Igor posted screenshots with options
    • Alex will think on the options a bit
  • Laser PRD coordination
    • Dileep is out - Corey (and team) will be taking over. We'll set up a new meeting soon.
    • baseline requirement discussions - touch base with other lead scientists - tomorrow 11-12
    • not all experiments require the laser so maybe certain issues are not as critical?
    • near hall vs far hall issues
    • we are also ready to design laser out-coupling when laser team has details/requirements available
      • Does the detector situation matter? beam tube size? this geometry is important...
      • ideal hole diameter?
    • Resend Z location info to M. Greenberg - help him figure out divergence etc. which will let us know what hole diameter we need...
  • Facilities coordination - need to start discussing
    • Detector Cooling
    • Room Temperature control - can we control temperature locally at MODS table? easier? - first we need requirements
      • do we have data?  we have data at the exit window...moar data needed?
      • Joe also has some data (tyler johnson has designed some environmental sensor boards)
      • stability more important than accuracy of temp - can we control this operationally (letting things warm up and settle?)
      • timing impact
      • pointing impact
  • JJ zooms/visit (27th) - questions about sticky slits
  • Armin added LOC to functional diagram
  • Elena is working on device list/mechanical schematic
    • Alex will send us list of "old" names
      • HAPPI database
  • Detector - current plan? 2M +140k
    • Meeting with Angelo today 
      • Angelo would like to be looped in on the plan as we inch forward
      • even if we have 2M in 16M housing, cost increase should be minimal
    • 4M minimum ~2angstrom resolution (but we need ~1.4)
    • with 8M ~1.6A
    • Number of modules shouldn't affect total depth
    • Hole diameter?
    • option: build an 16M shell with 4M modules? 
      • Alex will talk to David
      • Angelo presentation?
      • Costs? Options?
    • 8M preferred - potential BCR (baseline change request)
      • 2M may not be sufficient for most science cases
    • Alex will create a summary of what we can achieve with each so we can do a cost/benefit analysis
      • cost from Angelo?
    • sparkpix better for smaller detector?
      • need to talk about this a bit more
    • Have we explored all funding sources?
    • Alex might chat with Angelo to discuss options (speed/Area tradeoffs)


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