Document Type

Article

Journal/Book Title/Conference

IEEE Transactions on Plasma Science

Volume

42

Issue

1

Publication Date

2014

First Page

272

Last Page

277

DOI

10.1109/TPS.2013.2291873

Abstract

In recent charging studies, a discernible glow was detected emanating from sample surfaces undergoing electron beam bombardment that resulted from a luminescent effect termed cathodoluminescence. This suggests that some of the materials used as optical elements, structural components, and thermal control surfaces in the construction of space-based observatories might luminesce when exposed to sufficiently energetic charged particle fluxes from the space plasma environment. A central focus of our experiments was the temperature dependence of the luminescent behavior. Here, an overview of our experimental results is given, as well as a qualitative model to describe the luminescent behavior. We look at a simple model of band theory and the filling of localized or trapped states and the electron transitions from which the luminescence originates.

Comments

Published by IEEE in IEEE Transactions on Plasma Science. Author post print is available for download through link above.