Difference between revisions of "LBNL-2020: Cold Optics"

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** metamaterail (Golec) [[File:Alumina_mmAR_s4_lbnl2020.pdf]]
 
** metamaterail (Golec) [[File:Alumina_mmAR_s4_lbnl2020.pdf]]
 
* Production and acquisition of alumina lenses
 
* Production and acquisition of alumina lenses
** Ben Schmitt
 
 
** Akito (w/ input from Masaya Hasegawa @ KEK, Japan)
 
** Akito (w/ input from Masaya Hasegawa @ KEK, Japan)
 
*** Vendor: NTK technologies (formerly known as Ceratec Inc.) http://www.ntktech.com/
 
*** Vendor: NTK technologies (formerly known as Ceratec Inc.) http://www.ntktech.com/
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*** Shaping: shape and bake (no machining after baking), desired accuracy achieved (~+-25um across ~60cm lens), flange and holes can also be done.
 
*** Shaping: shape and bake (no machining after baking), desired accuracy achieved (~+-25um across ~60cm lens), flange and holes can also be done.
 
*** Precedent: PB2a lenses and filters, SO SAT and LATR filters.
 
*** Precedent: PB2a lenses and filters, SO SAT and LATR filters.
* B/K Plastic lenses (Marion) [[File:20200401_CMBS4_HDPElenses_Dierickx.pdf]]
+
** B/K Lenses (Marion, Ben S.) [[File:20200401_CMBS4_Lenses_Dierickx]]
  
 
== Notes ==
 
== Notes ==

Revision as of 10:08, 1 April 2020

Charge

With CD-1 coming up roughly one year from now we have to move to technology selection in the next half year. To meet this need we will have to have a review midyear. This session represents a first step toward this review where we will assess the technological performance and our ability to manufacture the required optical elements.

  • discuss the LAT and SAT needs for cold optics (performance and production requirements of the LAT and SAT options)
    • metal mesh filters
    • alumina filters and lenses
    • silicon lenses
    • other filters
    • HWP (optional)
  • describe the currently demonstrated status of the required technologies to meet both the technical and production needs.
    • Is there an existing supply path? If not how do we address that risk?
    • Discuss any risks to production (e.g., is the alumina or other material supplies secure?)
  • What is the development path? Will it be done by CD-1 or require post CD-1 work?
    • Summarize/update technical risks, R&D / simulation needs to retire those risks.

Agenda

Call in via Zoom: https://lbnl.zoom.us/j/189656154

Notes