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Proceedings Paper

High energy density interactions for near-earth orbit perturbations
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Paper Abstract

Energy requirements for near-Earth object (NEO) threat mitigation are addressed. Due to a large NEO mass range and the possibility of limited available time for orbit change, energy requirements can be large (~petajoules). To quantitatively determine energy requirements for a given momentum change use is made of the momentum coupling coefficient, CM, that depends on the type of energy transfer, energy density, interaction time scale, and target material properties. Inhomogeneous and flawed NEO materials are empirically confronted through experimental methodologies that generate parameters on high energy density mechanical and radiative induced momentum coupling to (primarily) meteorite targets serving as near-Earth asteroid surrogates. Interactants include high speed (> 8 km/s) mechanical projectiles, high intensity (~ GW/cm2) infra-red laser radiation, and (~200 GW/cm2) soft X-ray radiation. Issues exists and are addressed regarding momentum coupling scaling from coupon sized (~mm2) to much larger (~m2) targets. Applications include high energy planetary and astrophysical momentum coupling dynamics.

Paper Details

Date Published: 20 September 2004
PDF: 12 pages
Proc. SPIE 5448, High-Power Laser Ablation V, (20 September 2004); doi: 10.1117/12.547674
Show Author Affiliations
John L. Remo, Quantum Resonance, Inc. (United States)
Peter X. Hammerling, Quantum Resonance, Inc. (United States)

Published in SPIE Proceedings Vol. 5448:
High-Power Laser Ablation V
Claude R. Phipps, Editor(s)

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