10 May 2012 Laser neutralization of surface and buried munitions
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Abstract
In recent years NVESD has been investigating laser-based neutralization of buried mines and minelike targets. This paper covers the most recent efforts in this area. A field-test was conducted to demonstrate the state-of-the-art capability for standoff laser neutralization of surface and buried mines. The neutralization laser is a Ytterbium fiber laser with a nominal power output of 10 kW and a beam quality of M2 ≈ 1.8 at maximum power. Test trials were conducted at a standoff range of 50 meters with a 20° angle of attack. The laser was focused to a submillimeter spot using a Cassegrain telescope with a 12.5 inch diameter primary mirror. The targets were 105 mm artillery rounds with a composition B explosive fill. Three types of overburden were studied: sand, soil, and gravel. Laser neutralization capability was demonstrated under these conditions for live rounds buried under 7 cm of dry sand, 4 cm of soil, and 2 cm of gravel.
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James D. Habersat, James D. Habersat, Bradley W. Schilling, Bradley W. Schilling, Joe Alexander, Joe Alexander, Thomas Lehecka, Thomas Lehecka, } "Laser neutralization of surface and buried munitions", Proc. SPIE 8357, Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XVII, 835718 (10 May 2012); doi: 10.1117/12.921219; https://doi.org/10.1117/12.921219
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