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- W2015952407 abstract "Abstract This paper investigates one of several possible means of deflection of a large near-Earth object (NEO) on a potential collision course with Earth by means of modest velocity changes (ΔV ≈ 1–200 cm/s) applied to the NEO at perihelion. Given the present uncertainty in the geometry, topography and materials properties of the asteroids and/or comets, a deflection mechanism is required which is relatively insensitive to such details. Stand-off nuclear devices present an option to fulfill this criterion. Momentum can be transferred by several mechanisms: directly by means of the kinetic energy of the debris or, more efficiently, by ablation resulting from the absorption of X-rays. Thermonuclear devices additionally produce high energy neutrons. Using approximate models of the various types of NEO materials and tabulations from the literature, we construct effective X-ray and neutron mass absorption coefficients. The latter are incorporated into a simple model to calculate the impulse, and hence the velocity change imparted by the various nuclear products to all the NEO materials models." @default.
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- W2015952407 date "1995-09-01" @default.
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- W2015952407 title "Neo interaction with nuclear radiation" @default.
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- W2015952407 doi "https://doi.org/10.1016/0094-5765(95)00111-5" @default.
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