We previously developed and tested thermally sensitive particles that, when seeded into an explosive event, flow with the expanding post-detonation fireball and provide ex-situ measurements of this thermal environment. This current work presents the development and testing of tracking particles that are used in concert with the thermally sensitive particles to encode the initial positions of materials recovered for ex-situ analysis. These tracking sensors consist of fully-crystallized (c) rare-earth-doped yttria particles such as c-Dy:Y2O3, c-Sm:Y2O3, and c-Er,Yb:Y2O3. The temperature sensors consist of mixtures of precursor (p) and fully crystallized materials such as p-Eu:Y2O3/c-Tb:Y2O3 or p-Eu:ZrO2. Three mixtures containing one of the tracking sensors and one of the temperature sensing mixtures are placed at different locations within the chamber. Post-detonation, the tracking particles in the debris are excited by 355 nm light, resulting in different color luminescence, and allowing for potential visual inspection of the particle distribution originating from the different locations. Meanwhile, the temperature is determined from spectral changes of the precursor sensor materials or by comparison of the precursor sensor materials with the Tb:Y2O3 intensity reference.
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13 January 2017
SHOCK COMPRESSION OF CONDENSED MATTER - 2015: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter
14–19 June 2015
Tampa Bay, Florida, USA
Research Article|
January 13 2017
Luminescent sensors for tracking spatial particle distributions in an explosion
Benjamin R. Anderson;
Benjamin R. Anderson
1Institute for Shock Physics, Applied Sciences Laboratory,
Washington State University
, USA
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Ray Gunawidjaja;
Ray Gunawidjaja
1Institute for Shock Physics, Applied Sciences Laboratory,
Washington State University
, USA
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Helena Diez-y-Riega;
Helena Diez-y-Riega
1Institute for Shock Physics, Applied Sciences Laboratory,
Washington State University
, USA
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Hergen Eilers;
Hergen Eilers
a)
1Institute for Shock Physics, Applied Sciences Laboratory,
Washington State University
, USA
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Forrest R. Svingala;
Forrest R. Svingala
2Naval Surface Warfare Center,
Indian Head Explosive Ordnance Disposal Technology Division
, USA
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Amber Daniels;
Amber Daniels
2Naval Surface Warfare Center,
Indian Head Explosive Ordnance Disposal Technology Division
, USA
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James M. Lightstone
James M. Lightstone
2Naval Surface Warfare Center,
Indian Head Explosive Ordnance Disposal Technology Division
, USA
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a)
Corresponding author: [email protected]
AIP Conf. Proc. 1793, 060018 (2017)
Citation
Benjamin R. Anderson, Ray Gunawidjaja, Helena Diez-y-Riega, Hergen Eilers, Forrest R. Svingala, Amber Daniels, James M. Lightstone; Luminescent sensors for tracking spatial particle distributions in an explosion. AIP Conf. Proc. 13 January 2017; 1793 (1): 060018. https://doi.org/10.1063/1.4971574
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