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Proceedings Paper

Emission spectra from ZnS:Mn due to low velocity impacts
Author(s): W. A. Hollerman; S. M. Goedeke; N. P. Bergeron; R. J. Moore; S. W. Allison; L. A. Lewis
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Paper Abstract

Triboluminescence (TL) is the emission of light due to crystal fracture and has been known for centuries. One of the most common examples of TL is the flash created from chewing wintergreen Lifesavers. Since 2003, the authors have been measuring triboluminescent properties of phosphors, of which zinc sulfide doped with manganese (ZnS:Mn) is an example. Preliminary results indicate that impact velocities greater than 0.5 m/s produce measurable TL from ZnS:Mn. To extend this research, the investigation of the emission spectrum was chosen. This differs from using filtered photodetectors in that the spectral composition of fluorescence can be ascertained. Previous research has utilized a variety of schemes that include scratching, crushing, and grinding to generate TL. In our case, the material is activated by a short duration interaction of a dropped mass and a small number of luminescence centers. This research provides a basis for the characterization and selection of materials for future spacecraft impact detection schemes.

Paper Details

Date Published: 30 August 2005
PDF: 10 pages
Proc. SPIE 5897, Photonics for Space Environments X, 58970F (30 August 2005); doi: 10.1117/12.613570
Show Author Affiliations
W. A. Hollerman, Univ. of Louisiana at Lafayette (United States)
S. M. Goedeke, Oak Ridge National Lab. (United States)
N. P. Bergeron, Univ. of Louisiana at Lafayette (United States)
R. J. Moore, Univ. of Louisiana at Lafayette (United States)
S. W. Allison, Oak Ridge National Lab. (United States)
L. A. Lewis, Oak Ridge National Lab. (United States)

Published in SPIE Proceedings Vol. 5897:
Photonics for Space Environments X
Edward W. Taylor, Editor(s)

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