Affordable, Ultra-stable CVC SiC UVOIR Telescope for BENI Mission Project

Metadata Updated: July 8, 2015

Working with our System Integrator partner (ITT-Exelis) and Richard Lyon (NASA/GSFC Principal Investigator Compact Achromatic Visible Nulling Coronagraph Technology Maturation) and his telescope expert Lee Feinberg, Trex will perform a preliminary design of a 1-meter aperture, ultrastable, UVOIR telescope made using Trex Chemical Vapor Composite Silicon Carbide (CVC SiC[HTML_REMOVED]#153;). The highly athermal silicon carbide telescope provides an affordable solution for the Balloon Exoplanet Nulling Interferometer (BENI) Mission to qualify the VNC, with traceability to the requirements of the ATLAST observatory. Trex also proposes to demonstrate replicated, powered CVC SiC[HTML_REMOVED]#153; substrates using a new, polishable graphite mandrel material which allows the release of our CVC SiC[HTML_REMOVED]#153; deposit from the mandrel with a spectral finish. The new process eliminates rough and fine grinding of the optical surface, which is directly ready for fine lapping and polishing. The payoff will be at least a factor of 2X reduction in the areal cost of high performance CVC SiC[HTML_REMOVED]#153; mirrors, with an associated reduction in schedule on the order of 6-months. Using meniscus mirror designs for lightweighted mirrors in the telescope, rather than a web-based isogrid design, will also reduce the cost and schedule for CVC SiC[HTML_REMOVED]#153; mirrors, while not sacrificing weight or stiffness.

Access & Use Information

Public: This dataset is intended for public access and use. License: U.S. Government Work

Downloads & Resources

References

http://techport.nasa.gov/home
http://techport.nasa.gov/doc/home/TechPort_Advanced_Search.pdf
http://techport.nasa.gov/fetchFile?objectId=6561
http://techport.nasa.gov/fetchFile?objectId=3456
http://techport.nasa.gov/fetchFile?objectId=3447
http://techport.nasa.gov/fetchFile?objectId=6584
http://techport.nasa.gov/fetchFile?objectId=6560
http://techport.nasa.gov/fetchFile?objectId=3448

Dates

Metadata Created Date April 9, 2015
Metadata Updated Date July 8, 2015

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date April 9, 2015
Metadata Updated Date July 8, 2015
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_12874
Maintainer
Gary Jahns
Maintainer Email
Id {$oid: 55942a88c63a7fe59b498246}
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id 462bc243-0015-464b-98a8-931429d4e630
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2013-05-01T00:00:00Z
Homepage URL http://techport.nasa.gov/view/12874
Language en-US
License http://www.usa.gov/publicdomain/label/1.0/
Data Last Modified 2015-03-12
Program Code 026:027
Publisher Hierarchy National Aeronautics and Space Administration > Space Technology Mission Directorate
Related Documents http://techport.nasa.gov/home, http://techport.nasa.gov/doc/home/TechPort_Advanced_Search.pdf, http://techport.nasa.gov/fetchFile?objectId=6561, http://techport.nasa.gov/fetchFile?objectId=3456, http://techport.nasa.gov/fetchFile?objectId=3447, http://techport.nasa.gov/fetchFile?objectId=6584, http://techport.nasa.gov/fetchFile?objectId=6560, http://techport.nasa.gov/fetchFile?objectId=3448
Source Datajson Identifier True
Source Hash 9b79d3dc4de2a051e01850aabea3973e9869a3e6
Source Schema Version 1.1
Temporal 2013-05-01T00:00:00Z/2013-11-01T00:00:00Z

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