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Proceedings Paper

Nuclear-radiation-induced fluorescence effects in surface overlayers
Author(s): Norman H. Tolk; M. M. Albert; Royal G. Albridge; Alan V. Barnes; D. R. Brown; G. A. Mensing; George Pollock
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Paper Abstract

The incidence of energetic photons, electrons, and heavy particles on surfaces of optical components leads to the generation of surprisingly intense radioluminescence which may interfere with sensor performance. This research focuses on the ways in which energy is deposited by incident electrons leading to fluorescence, bond-making and bond-breaking processes on surfaces and in the near-surface bulk. Knowledge of these microscopic mechanisms provides detailed clues which lead to an understanding of macroscopic processes, such as surface glow, materials modification and darkening. We describe progress in ongoing studies to determine the influence of substrate material, temperature, and cryolayer species on the intensity and the decay time of electron-induced glow, and the related phenomena leading to darkening, of optical components. Emphasis is on the identification of mechanisms responsible for both glow and darkening.

Paper Details

Date Published: 11 January 1993
PDF: 11 pages
Proc. SPIE 1761, Damage to Space Optics, and Properties and Characteristics of Optical Glass, (11 January 1993); doi: 10.1117/12.138917
Show Author Affiliations
Norman H. Tolk, Vanderbilt Univ. (United States)
M. M. Albert, Vanderbilt Univ. (United States)
Royal G. Albridge, Vanderbilt Univ. (United States)
Alan V. Barnes, Vanderbilt Univ. (United States)
D. R. Brown, Vanderbilt Univ. (United States)
G. A. Mensing, Vanderbilt Univ. (United States)
George Pollock, U.S. Army Strategic Defense Command (United States)

Published in SPIE Proceedings Vol. 1761:
Damage to Space Optics, and Properties and Characteristics of Optical Glass
James B. Breckinridge; Alexander J. Marker III, Editor(s)

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