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Thin aluminum/polyimide optical blocking filter study for the Lynx x-ray mission

Published

Author(s)

Benjamin Zeiger, Charles Tarrio

Abstract

The Lynx x-ray mission will push thin film filters to larger apertures and thinner profiles than those of any preceding mission. We present a study of the uniformity of deposition with existing technology and the consequences of oxidation on 10-15 nm Al films on LUXFilm polyimide. We present visible and infrared transmission measurements of thin aluminum filters and the results of a photon-driven oxidation study at the Beamline 1 of the Synchrotron Ultraviolet Radiation Facility. We conclude that, from a deposition and oxidation standpoint, Al optical blocking layers at this thickness are viable.
Proceedings Title
Proceedings of SPIE vol. 11118, UV, x-ray, and gamma-ray space instrumentation for astronomy XXI
Volume
11118
Conference Dates
August 11-15, 2019
Conference Location
San Diego, CA
Conference Title
SPIE conference 1118, UV, x-ray, and gamma-ray space instrumentation for astronomy XXI

Keywords

microcalorimeter, thin-film deposition, filter, optical blocking filters, Lynx, oxidation

Citation

Zeiger, B. and Tarrio, C. (2019), Thin aluminum/polyimide optical blocking filter study for the Lynx x-ray mission, Proceedings of SPIE vol. 11118, UV, x-ray, and gamma-ray space instrumentation for astronomy XXI, San Diego, CA, [online], https://dx.doi.org/10.1002/ 10.1117/12.2529755, 10.1117/12.2529755,https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=928496 (Accessed September 20, 2021)
Created December 1, 2019, Updated April 23, 2021