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1 October 1991 Transmittances of thin polymer films and their suitability as a supportive substrate for a soft x-ray solar filter
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Abstract
Soft x-ray filter designs for the Brigham Young University `Goldhelox Project' are discussed. Three polymers intended for use as a supportive substrate for a soft x-ray solar filter having a passband centered at 171 angstroms are examined. The use of polymer substrates is examined because of vibrational and mechanical stresses associated with the shuttle launch, preventing the use of a free standing filter, and because of Goldhelox's special need to locate the filter near the imaging plane. The uniform consistency of a polymer support prevents any imaging of the filter support structure, as would occur if a traditional mesh support were used. The polymer substrates investigated are: AP-1, Formvar, and polypropylene. Their transmissive characteristics of the polymers are examined along with the feasibility of their use. Transmission as a function of energy for each polymer is given over an energy range of 10 to 180 eV.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Memorie K. Williams, Evan Hansen, Arturo Reyes-Mena, and David D. Allred "Transmittances of thin polymer films and their suitability as a supportive substrate for a soft x-ray solar filter", Proc. SPIE 1549, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy II, (1 October 1991); https://doi.org/10.1117/12.48335
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