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Fabrication of a Monolithic 5-Meter Aluminum Reflector for Millimeter-Wavelength Observations of the Cosmic Microwave Background

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arxiv 2304.01469 v1 pith:74WVZDOQ submitted 2023-04-04 astro-ph.IM

Tyler Natoli , Bradford Benson , John Carlstrom , Eric Chauvin , Bruno Clavel , Nick Emerson , Patricio Gallardo , Mike Niemack
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Steve Padin Klaus Schwab Lutz Stenvers Jeff Zivick
This is my paper · ORCID
classification astro-ph.IM
keywords reflectoraluminumbackgroundcosmicfabricationmetermicrowavemillimeter-wavelength
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abstract

We have demonstrated the fabrication of a monolithic, 5-meter diameter, aluminum reflector with 17.4 $\mu$m RMS surface error. The reflector was designed to avoid the problem of pickup due to scattering from panel gaps in a large, millimeter-wavelength telescope that will be used for measurements on the cosmic microwave background.

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