Share Email Print

Proceedings Paper

Effect of electron radiation on glass used for space-based optical systems
Author(s): Mark T. Boies; James D. Kinnison; Jon A. Schwartz
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Electron radiation presents a peril to the qualification and use of glass on space-based optical systems. Radiation testing of glass for use in harsh radiation environments commonly centers around x-ray, gamma-ray, neutron, and proton radiation. Because of their relatively low energy and density, the effect of electron radiation is often considered negligible. However, during qualification of the TOPEX laser retroreflector array glass, 250 krad (Si) doses of 1.25 MeV electrons were shown to cause significant damage in several glass samples. Electron radiation will generate centers of high potential within the glass and when large enough cause a dielectric breakdown, whereby forming Lichtenberg patterns. These patterns significantly reduce transmission and are good scattering centers. The effect of electron radiation on six types of glass at incremental dosages between 0.25 Mrad and 55 Mrad is presented. The results of electron radiation on a magnesium fluoride anti-reflection coating also are discussed.

Paper Details

Date Published: 21 October 1994
PDF: 10 pages
Proc. SPIE 2287, Properties and Characteristics of Optical Glass III, (21 October 1994); doi: 10.1117/12.190938
Show Author Affiliations
Mark T. Boies, Johns Hopkins Univ. (United States)
James D. Kinnison, Johns Hopkins Univ. (United States)
Jon A. Schwartz, Jet Propulsion Lab. (United States)

Published in SPIE Proceedings Vol. 2287:
Properties and Characteristics of Optical Glass III
Alexander J. Marker, Editor(s)

© SPIE. Terms of Use
Back to Top