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Proceedings Paper

Radiation Effects On The Low Temperature Coefficient Of Thermal Expansion Of Low-CTE Materials
Author(s): Paige L. Higby; Charles G. Askins; Jackie A. Ruller; E.Joseph Friebele
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Paper Abstract

Materials for large space optics require low coefficients of thermal expansion (CTE) in order for the components fabricated from them to maintain their strict figure specifications under thermal gradients and cycling. The environment in space contains high energy photons and charged particles such as electrons and protons, which can cause electronic defects, leading to such physical effects as compaction and discoloration. The change in CTE upon exposure to ionizing radiation has been studied here, and it has been found that the low-CTE characteristics of some materials are severely effected by electron irradiation.

Paper Details

Date Published: 16 January 1989
PDF: 8 pages
Proc. SPIE 0970, Properties and Characteristics of Optical Glass, (16 January 1989); doi: 10.1117/12.948179
Show Author Affiliations
Paige L. Higby, Naval Research Laboratory (United States)
Charles G. Askins, Naval Research Laboratory (United States)
Jackie A. Ruller, Naval Research Laboratory (United States)
E.Joseph Friebele, Naval Research Laboratory (United States)

Published in SPIE Proceedings Vol. 0970:
Properties and Characteristics of Optical Glass
Alexander J. Marker III, Editor(s)

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