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Persistent URL http://purl.org/net/epubs/work/10916896
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Record Id 10916896
Title Fabrication and test of a diamond-turned mirror suitable for a spaceborne photometric heliospheric imager
Abstract We have fabricated a diamond-turned low-mass version of a toroidal mirror which is a key element for a spaceborne visible-light heliospheric imager. This mirror's virtual image of roughly a hemisphere of sky is viewed by a conventional photometric camera. The optical system views close to the edge of an external protective baffle and does not protrude from the protected volume. The sky-brightness dynamic range and background-light rejection requires minimal wideangle scattering from the mirror surface. We describe the manufacturing process for this mirror, and present preliminary laboratory measurements of its wide-angle scattering characteristics.
Organisation SSTD , STFC
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Language English (EN)
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Paper In Conference Proceedings In Solar Physics and Space Weather Instrumentation III, San Diego, California, 2nd August 2009, Proc SPIE 7438 (2009). doi:10.1117/12.825362 2009
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