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telecon 24-04-2018

Page history last edited by Tony Mroczkowski 1 year, 9 months ago

in attendance: Urs, Victor, Vincent, Oscar, Chris, Tony, Omid


The meeting was primarily focused on the heterodyne side.  The upcoming science workshop in Edinburgh in September sets a goal for having "strawman" instrument designs written up.  It was agreed that we need more guidelines for the document and to work on a roadmap for the project in order to get a real start on the white paper.  Along these lines, some principles were agreed:


  • Start with some fixed budgets in the 10-50 million Euro or dollar range and write about what you can do for this budget.
  • Consider trade-offs one has to make to meet the fixed budget (e.g. if we design the "Concept 1" or "Tier 1" strawperson instrument and find it exceeds the budget, how would we scale it to fit?).
  • Consider scalability for future upgrades (e.g. maybe the first version would have N elements, and the next would have 4N). 
  • Consider modularity.  For heterodyne, this could be a shared IF chain for instance, and for direct detection perhaps the readouts could be shared. 


For guidance on the process, we should look to:


  1. The CCAT first-light instrument documents (i.e. CHAI, SuperSpec, LWCam, and SWCam).  CHAI in particular has evolved for CCAT-prime, but essentially in foreseeable ways. 
  2. The OST "concept 1" and "concept 2" instrumentation suites, where the former is the more ambitious, expensive option, and the other is ambitious but more realistic.
  3. The science priorities of the Submm Single-Dish Working Group report: https://www.eso.org/public/about-eso/committees/stc/stc-87th/public/STC-567_ESO_Submm_Single_Dish_Scientific_Strategy_WG_Report_87th_STC_Mtg.pdf



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