Measurement of the scattering and absorption cross sections of the human body

Conti, Stéphane G.; Roux, Philippe; Demer, David A.; Rosny, Julien de
February 2004
Applied Physics Letters;2/2/2004, Vol. 84 Issue 5, p819
Academic Journal
Presented here are absolute measurements of the acoustic intensity scattered and absorbed by humans. The total scattering and absorption cross sections, σ[sub T] and σ[sub a], were obtained for individual humans walking randomly in a room, using long-duration acoustic reverberation. Within the audible range, the sound scattering spectra of the human body is similar to that of a hard ellipsoid with same volume (dimensions proportional to the mass to the one-third power). Moreover, increasing amounts of clothing have little effect on scattering while absorption is greatly increased. © 2004 American Institute of Physics.


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